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bsnes/bsnes/nes/ppu/ppu.cpp

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Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
#include <nes/nes.hpp>
namespace NES {
Update to v082r20 release. byuu says: NES now has save state support. NES A/B buttons were indeed swapped, so that's fixed now. nall/dsp now puts resamplers into separate classes, so that each can have their own state information. opengl.hpp uses GL_RGBA internal format and doesn't regenerate textures on resize. No speedup, no fix to junk on resize, so I will be very unhappy if this breaks things for anyone. GLSL shaders use <fragment filter="nearest/point"> as you guys wanted. ui-snes was removed.
2011-09-23 11:13:57 +00:00
#include "serialization.cpp"
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
PPU ppu;
void PPU::Main() {
ppu.main();
}
void PPU::main() {
while(true) {
Update to v082r20 release. byuu says: NES now has save state support. NES A/B buttons were indeed swapped, so that's fixed now. nall/dsp now puts resamplers into separate classes, so that each can have their own state information. opengl.hpp uses GL_RGBA internal format and doesn't regenerate textures on resize. No speedup, no fix to junk on resize, so I will be very unhappy if this breaks things for anyone. GLSL shaders use <fragment filter="nearest/point"> as you guys wanted. ui-snes was removed.
2011-09-23 11:13:57 +00:00
if(scheduler.sync == Scheduler::SynchronizeMode::PPU) {
scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
}
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
raster_scanline();
}
}
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
void PPU::tick() {
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
if(status.ly == 240 && status.lx == 340) status.nmi_hold = 1;
if(status.ly == 241 && status.lx == 0) status.nmi_flag = status.nmi_hold;
Update to v083r03 release. byuu says: Lots of phoenix issues fixed, especially for Windows and GTK+. NES emulation passes all ten ppu_vbl_nmi tests from blargg. Sprite timing is nowhere near accurate yet (always consumes four clocks per sprite), but oh well.
2011-10-24 11:35:34 +00:00
if(status.ly == 241 && status.lx == 2) cpu.set_nmi_line(status.nmi_enable && status.nmi_flag);
Update to v083r05 release. (r04 was not posted to the WIP thread) byuu says: NES: passes ppu_sprite_overflow tests 01, 02, 05. Game Boy: uses DMG BIOS (the one with the slow title scroll) or SGB BIOS, based upon how you load the game. Game Boy Color: Everything except the IR port is emulated. I don't have any plans to allow linking two instances of bsnes. And that's frankly never going to happen over netplay anyway, due to latency requirements of the serial/IR ports. The new DMA stuff is possibly incorrect, my test games don't seem to use it. Zelda: DX usually resets or crashes on the intro right before the beach scene. I'm not sure why. Skip the intro and the game plays fine. This is the best I can do when the most up-to-date GB/C reference document is over ten years old and half-assed (pandocs.) I could really use some help from anyone who understands the system. Probably the worst part of my emulation at the moment is the interrupt system. Lots of things real hardware doesn't allow (DMA outside HRAM, CGB DMA to invalid addresses, etc) isn't blocked yet. LCD renderer is still scanline-based, which is just terrible. Doesn't seem to be any good docs on cycle-level operation. I only know that it's incredibly pathological and variable.
2011-10-27 00:00:17 +00:00
if(status.ly == 260 && status.lx == 340) status.sprite_zero_hit = 0, status.sprite_overflow = 0;
Update to v083r03 release. byuu says: Lots of phoenix issues fixed, especially for Windows and GTK+. NES emulation passes all ten ppu_vbl_nmi tests from blargg. Sprite timing is nowhere near accurate yet (always consumes four clocks per sprite), but oh well.
2011-10-24 11:35:34 +00:00
if(status.ly == 260 && status.lx == 340) status.nmi_hold = 0;
if(status.ly == 261 && status.lx == 0) status.nmi_flag = status.nmi_hold;
if(status.ly == 261 && status.lx == 2) cpu.set_nmi_line(status.nmi_enable && status.nmi_flag);
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
clock += 4;
if(clock >= 0) co_switch(cpu.thread);
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
status.lx++;
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
}
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
void PPU::scanline() {
status.lx = 0;
if(++status.ly == 262) {
status.ly = 0;
frame();
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
cartridge.scanline(status.ly);
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
void PPU::frame() {
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
status.field ^= 1;
Update to v082r13 release. byuu says: I've updated the {System}::Interface classes to encapsulate all common functionality, so they are C++ equivalents of libsnes now. The idea being, use the interface class and you'll never have to reach into core objects (unless you really want to.) Not guaranteeing as stable an API as I do with libsnes for that, though. C++ doesn't make for nice dynamic libraries, anyway. Added back the state manager, and it now works for both SNES and Game Boy. NES save states aren't in yet. Anyway, this should give you a pretty good feel for what the combined UI is going to be like: same as before, everything works the same. Only difference is the dynamic system menu and cartridge menu with more load options. The settings window will be mostly the same as well, but will obviously have options that only apply to some systems.
2011-09-15 12:41:49 +00:00
interface->videoRefresh(buffer);
Update to v082r20 release. byuu says: NES now has save state support. NES A/B buttons were indeed swapped, so that's fixed now. nall/dsp now puts resamplers into separate classes, so that each can have their own state information. opengl.hpp uses GL_RGBA internal format and doesn't regenerate textures on resize. No speedup, no fix to junk on resize, so I will be very unhappy if this breaks things for anyone. GLSL shaders use <fragment filter="nearest/point"> as you guys wanted. ui-snes was removed.
2011-09-23 11:13:57 +00:00
scheduler.exit(Scheduler::ExitReason::FrameEvent);
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}
void PPU::power() {
}
void PPU::reset() {
create(PPU::Main, 21477272);
status.mdr = 0x00;
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
status.field = 0;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
status.ly = 0;
status.bus_data = 0x00;
status.address_latch = 0;
status.vaddr = 0x0000;
status.taddr = 0x0000;
status.xaddr = 0x00;
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
status.nmi_hold = 0;
status.nmi_flag = 0;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
//$2000
status.nmi_enable = false;
status.master_select = 0;
status.sprite_size = 0;
status.bg_addr = 0x0000;
status.sprite_addr = 0x0000;
status.vram_increment = 1;
//$2001
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
status.emphasis = 0;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
status.sprite_enable = false;
status.bg_enable = false;
status.sprite_edge_enable = false;
status.bg_edge_enable = false;
status.grayscale = false;
//$2002
status.sprite_zero_hit = false;
status.sprite_overflow = false;
//$2003
status.oam_addr = 0x00;
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
for(auto &n : buffer) n = 0;
for(auto &n : ciram ) n = 0;
for(auto &n : cgram ) n = 0;
for(auto &n : oam ) n = 0;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}
uint8 PPU::read(uint16 addr) {
uint8 result = 0x00;
switch(addr & 7) {
case 2: //PPUSTATUS
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
result |= status.nmi_flag << 7;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
result |= status.sprite_zero_hit << 6;
result |= status.sprite_overflow << 5;
result |= status.mdr & 0x1f;
status.address_latch = 0;
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
status.nmi_hold = 0;
cpu.set_nmi_line(status.nmi_flag = 0);
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
break;
case 4: //OAMDATA
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
result = oam[status.oam_addr];
if((status.oam_addr & 3) == 3) result &= 0xe3;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
break;
case 7: //PPUDATA
Update to v082r33 release. byuu says: Added MMC2, MMC4, VRC4, VRC7 (no audio.) Split NES audio code up into individual modules. Fixed libsnes to compile: Themaister, can you please test to make sure it works? I don't have a libsnes client on my work PC to test it. Added about / license information to bottom of advanced settings screen for now (better than nothing, I guess.) Blocked PPU reads/writes while rendering for now, easier than coming up with a bus address locking thing :/ I can't seem to fix MMC5 graphics during the intro to Uchuu Keibitai. Without that, trying to implement vertical-split screen mode doesn't make sense. So as far as special audio chips go ... * VRC6 is completed * Sunsoft 5B has everything the only game to use it uses, but there are more unused channels I'd like to support anyway (they aren't documented, though.) * MMC5 audio unsupported for now * VRC7 audio unsupported, probably for a long time (hardest audio driver of all. More complex than core NES APU.) * audio PCM games (Moero Pro Yakyuu!) I probably won't ever support (they require external WAV packs.)
2011-10-12 12:03:58 +00:00
if(raster_enable() && (status.ly <= 240 || status.ly == 261)) return 0x00;
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
addr = status.vaddr & 0x3fff;
if(addr <= 0x1fff) {
result = status.bus_data;
status.bus_data = cartridge.chr_read(addr);
} else if(addr <= 0x3eff) {
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
result = status.bus_data;
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
status.bus_data = cartridge.chr_read(addr);
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
} else if(addr <= 0x3fff) {
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
result = cgram_read(addr);
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
status.bus_data = cartridge.chr_read(addr);
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}
status.vaddr += status.vram_increment;
break;
}
return result;
}
void PPU::write(uint16 addr, uint8 data) {
status.mdr = data;
switch(addr & 7) {
case 0: //PPUCTRL
status.nmi_enable = data & 0x80;
status.master_select = data & 0x40;
status.sprite_size = data & 0x20;
status.bg_addr = (data & 0x10) ? 0x1000 : 0x0000;
status.sprite_addr = (data & 0x08) ? 0x1000 : 0x0000;
status.vram_increment = (data & 0x04) ? 32 : 1;
status.taddr = (status.taddr & 0x73ff) | ((data & 0x03) << 10);
Update to v083r03 release. byuu says: Lots of phoenix issues fixed, especially for Windows and GTK+. NES emulation passes all ten ppu_vbl_nmi tests from blargg. Sprite timing is nowhere near accurate yet (always consumes four clocks per sprite), but oh well.
2011-10-24 11:35:34 +00:00
cpu.set_nmi_line(status.nmi_enable && status.nmi_hold && status.nmi_flag);
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
return;
case 1: //PPUMASK
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
status.emphasis = data >> 5;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
status.sprite_enable = data & 0x10;
status.bg_enable = data & 0x08;
status.sprite_edge_enable = data & 0x04;
status.bg_edge_enable = data & 0x02;
status.grayscale = data & 0x01;
return;
case 2: //PPUSTATUS
return;
case 3: //OAMADDR
status.oam_addr = data;
return;
case 4: //OAMDATA
Update to v082r06 release. byuu says: Emulated MMC1, currently defaults to B2 configuration. Fixed a whole bunch of timing things, render things, nametable mirroring things, etc. Zelda and Mega Man II are fully playable, but they have odd vertical scrolling issues that make it a not so fun experience. Not sure what the problem is there, yet. The Y scroll register writes seem to be wonky ... I don't know. Keeping the Cartridge menu always visible now, so it's faster to load carts, but I am still hiding the non-loaded system menus.
2011-09-12 09:44:22 +00:00
oam[status.oam_addr++] = data;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
return;
case 5: //PPUSCROLL
if(status.address_latch == 0) {
status.xaddr = data & 0x07;
status.taddr = (status.taddr & 0x7fe0) | (data >> 3);
} else {
status.taddr = (status.taddr & 0x0c1f) | ((data & 0x07) << 12) | ((data >> 3) << 5);
}
status.address_latch ^= 1;
return;
case 6: //PPUADDR
if(status.address_latch == 0) {
status.taddr = (status.taddr & 0x00ff) | ((data & 0x3f) << 8);
} else {
status.taddr = (status.taddr & 0x7f00) | data;
status.vaddr = status.taddr;
}
status.address_latch ^= 1;
return;
case 7: //PPUDATA
Update to v082r33 release. byuu says: Added MMC2, MMC4, VRC4, VRC7 (no audio.) Split NES audio code up into individual modules. Fixed libsnes to compile: Themaister, can you please test to make sure it works? I don't have a libsnes client on my work PC to test it. Added about / license information to bottom of advanced settings screen for now (better than nothing, I guess.) Blocked PPU reads/writes while rendering for now, easier than coming up with a bus address locking thing :/ I can't seem to fix MMC5 graphics during the intro to Uchuu Keibitai. Without that, trying to implement vertical-split screen mode doesn't make sense. So as far as special audio chips go ... * VRC6 is completed * Sunsoft 5B has everything the only game to use it uses, but there are more unused channels I'd like to support anyway (they aren't documented, though.) * MMC5 audio unsupported for now * VRC7 audio unsupported, probably for a long time (hardest audio driver of all. More complex than core NES APU.) * audio PCM games (Moero Pro Yakyuu!) I probably won't ever support (they require external WAV packs.)
2011-10-12 12:03:58 +00:00
if(raster_enable() && (status.ly <= 240 || status.ly == 261)) return;
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
addr = status.vaddr & 0x3fff;
if(addr <= 0x1fff) {
cartridge.chr_write(addr, data);
} else if(addr <= 0x3eff) {
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
cartridge.chr_write(addr, data);
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
} else if(addr <= 0x3fff) {
cgram_write(addr, data);
}
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
status.vaddr += status.vram_increment;
return;
}
}
Update to v082r06 release. byuu says: Emulated MMC1, currently defaults to B2 configuration. Fixed a whole bunch of timing things, render things, nametable mirroring things, etc. Zelda and Mega Man II are fully playable, but they have odd vertical scrolling issues that make it a not so fun experience. Not sure what the problem is there, yet. The Y scroll register writes seem to be wonky ... I don't know. Keeping the Cartridge menu always visible now, so it's faster to load carts, but I am still hiding the non-loaded system menus.
2011-09-12 09:44:22 +00:00
uint8 PPU::ciram_read(uint16 addr) {
return ciram[addr & 0x07ff];
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}
Update to v082r06 release. byuu says: Emulated MMC1, currently defaults to B2 configuration. Fixed a whole bunch of timing things, render things, nametable mirroring things, etc. Zelda and Mega Man II are fully playable, but they have odd vertical scrolling issues that make it a not so fun experience. Not sure what the problem is there, yet. The Y scroll register writes seem to be wonky ... I don't know. Keeping the Cartridge menu always visible now, so it's faster to load carts, but I am still hiding the non-loaded system menus.
2011-09-12 09:44:22 +00:00
void PPU::ciram_write(uint16 addr, uint8 data) {
ciram[addr & 0x07ff] = data;
}
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
Update to v082r06 release. byuu says: Emulated MMC1, currently defaults to B2 configuration. Fixed a whole bunch of timing things, render things, nametable mirroring things, etc. Zelda and Mega Man II are fully playable, but they have odd vertical scrolling issues that make it a not so fun experience. Not sure what the problem is there, yet. The Y scroll register writes seem to be wonky ... I don't know. Keeping the Cartridge menu always visible now, so it's faster to load carts, but I am still hiding the non-loaded system menus.
2011-09-12 09:44:22 +00:00
uint8 PPU::cgram_read(uint16 addr) {
if((addr & 0x13) == 0x10) addr &= ~0x10;
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
uint8 data = cgram[addr & 0x1f];
if(status.grayscale) data &= 0x30;
return data;
Update to v082r06 release. byuu says: Emulated MMC1, currently defaults to B2 configuration. Fixed a whole bunch of timing things, render things, nametable mirroring things, etc. Zelda and Mega Man II are fully playable, but they have odd vertical scrolling issues that make it a not so fun experience. Not sure what the problem is there, yet. The Y scroll register writes seem to be wonky ... I don't know. Keeping the Cartridge menu always visible now, so it's faster to load carts, but I am still hiding the non-loaded system menus.
2011-09-12 09:44:22 +00:00
}
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
Update to v082r06 release. byuu says: Emulated MMC1, currently defaults to B2 configuration. Fixed a whole bunch of timing things, render things, nametable mirroring things, etc. Zelda and Mega Man II are fully playable, but they have odd vertical scrolling issues that make it a not so fun experience. Not sure what the problem is there, yet. The Y scroll register writes seem to be wonky ... I don't know. Keeping the Cartridge menu always visible now, so it's faster to load carts, but I am still hiding the non-loaded system menus.
2011-09-12 09:44:22 +00:00
void PPU::cgram_write(uint16 addr, uint8 data) {
if((addr & 0x13) == 0x10) addr &= ~0x10;
cgram[addr & 0x1f] = data;
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
//
//vaddr = 0yyy VHYY YYYX XXXX
//yyy = fine Yscroll (y:d0-d2)
//V = V nametable (y:d8)
//H = H nametable (x:d8)
//YYYYY = Y nametable (y:d3-d7)
//XXXXX = X nametable (x:d3-d7)
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
bool PPU::raster_enable() const {
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
return (status.bg_enable || status.sprite_enable);
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}
unsigned PPU::nametable_addr() const {
return 0x2000 + (status.vaddr & 0x0c00);
}
unsigned PPU::scrollx() const {
return ((status.vaddr & 0x1f) << 3) | status.xaddr;
}
unsigned PPU::scrolly() const {
return (((status.vaddr >> 5) & 0x1f) << 3) | ((status.vaddr >> 12) & 7);
}
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
unsigned PPU::sprite_height() const {
return status.sprite_size == 0 ? 8 : 16;
}
//
uint8 PPU::chr_load(uint16 addr) {
if(raster_enable() == false) return 0x00;
return cartridge.chr_read(addr);
}
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
//
void PPU::scrollx_increment() {
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
if(raster_enable() == false) return;
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
status.vaddr = (status.vaddr & 0x7fe0) | ((status.vaddr + 0x0001) & 0x001f);
if((status.vaddr & 0x001f) == 0x0000) {
status.vaddr ^= 0x0400;
}
}
void PPU::scrolly_increment() {
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
if(raster_enable() == false) return;
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
status.vaddr = (status.vaddr & 0x0fff) | ((status.vaddr + 0x1000) & 0x7000);
if((status.vaddr & 0x7000) == 0x0000) {
status.vaddr = (status.vaddr & 0x7c1f) | ((status.vaddr + 0x0020) & 0x03e0);
if((status.vaddr & 0x03e0) == 0x03c0) { //0x03c0 == 30 << 5; 30 * 8 = 240
status.vaddr &= 0x7c1f;
status.vaddr ^= 0x0800;
}
}
}
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
//
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
void PPU::raster_pixel() {
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
uint16 *output = buffer + status.ly * 256;
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
unsigned mask = 0x8000 >> (status.xaddr + (status.lx & 7));
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
unsigned palette = 0, object_palette = 0;
bool object_priority = 0;
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
palette |= (raster.tiledatalo & mask) ? 1 : 0;
palette |= (raster.tiledatahi & mask) ? 2 : 0;
if(palette) {
unsigned attr = raster.attribute;
if(mask >= 256) attr >>= 2;
palette |= (attr & 3) << 2;
}
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
if(status.bg_enable == false) palette = 0;
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
if(status.bg_edge_enable == false && status.lx < 8) palette = 0;
Update to v083r05 release. (r04 was not posted to the WIP thread) byuu says: NES: passes ppu_sprite_overflow tests 01, 02, 05. Game Boy: uses DMG BIOS (the one with the slow title scroll) or SGB BIOS, based upon how you load the game. Game Boy Color: Everything except the IR port is emulated. I don't have any plans to allow linking two instances of bsnes. And that's frankly never going to happen over netplay anyway, due to latency requirements of the serial/IR ports. The new DMA stuff is possibly incorrect, my test games don't seem to use it. Zelda: DX usually resets or crashes on the intro right before the beach scene. I'm not sure why. Skip the intro and the game plays fine. This is the best I can do when the most up-to-date GB/C reference document is over ten years old and half-assed (pandocs.) I could really use some help from anyone who understands the system. Probably the worst part of my emulation at the moment is the interrupt system. Lots of things real hardware doesn't allow (DMA outside HRAM, CGB DMA to invalid addresses, etc) isn't blocked yet. LCD renderer is still scanline-based, which is just terrible. Doesn't seem to be any good docs on cycle-level operation. I only know that it's incredibly pathological and variable.
2011-10-27 00:00:17 +00:00
if(status.sprite_enable == true)
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
for(signed sprite = 7; sprite >= 0; sprite--) {
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
if(status.sprite_edge_enable == false && status.lx < 8) continue;
if(raster.oam[sprite].id == 64) continue;
unsigned spritex = status.lx - raster.oam[sprite].x;
if(spritex >= 8) continue;
if(raster.oam[sprite].attr & 0x40) spritex ^= 7;
unsigned mask = 0x80 >> spritex;
unsigned sprite_palette = 0;
sprite_palette |= (raster.oam[sprite].tiledatalo & mask) ? 1 : 0;
sprite_palette |= (raster.oam[sprite].tiledatahi & mask) ? 2 : 0;
if(sprite_palette == 0) continue;
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
if(raster.oam[sprite].id == 0 && palette && status.lx != 255) status.sprite_zero_hit = 1;
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
sprite_palette |= (raster.oam[sprite].attr & 3) << 2;
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
object_priority = raster.oam[sprite].attr & 0x20;
object_palette = 16 + sprite_palette;
}
if(object_palette) {
if(palette == 0 || object_priority == 0) palette = object_palette;
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
}
if(raster_enable() == false) palette = 0;
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
output[status.lx] = (status.emphasis << 6) | cgram_read(palette);
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
}
void PPU::raster_sprite() {
Update to v083r05 release. (r04 was not posted to the WIP thread) byuu says: NES: passes ppu_sprite_overflow tests 01, 02, 05. Game Boy: uses DMG BIOS (the one with the slow title scroll) or SGB BIOS, based upon how you load the game. Game Boy Color: Everything except the IR port is emulated. I don't have any plans to allow linking two instances of bsnes. And that's frankly never going to happen over netplay anyway, due to latency requirements of the serial/IR ports. The new DMA stuff is possibly incorrect, my test games don't seem to use it. Zelda: DX usually resets or crashes on the intro right before the beach scene. I'm not sure why. Skip the intro and the game plays fine. This is the best I can do when the most up-to-date GB/C reference document is over ten years old and half-assed (pandocs.) I could really use some help from anyone who understands the system. Probably the worst part of my emulation at the moment is the interrupt system. Lots of things real hardware doesn't allow (DMA outside HRAM, CGB DMA to invalid addresses, etc) isn't blocked yet. LCD renderer is still scanline-based, which is just terrible. Doesn't seem to be any good docs on cycle-level operation. I only know that it's incredibly pathological and variable.
2011-10-27 00:00:17 +00:00
if(raster_enable() == false) return;
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
unsigned n = raster.oam_iterator++;
signed ly = (status.ly == 261 ? -1 : status.ly);
unsigned y = ly - oam[(n * 4) + 0];
if(y >= sprite_height()) return;
if(raster.oam_counter == 8) {
status.sprite_overflow = 1;
return;
}
Update to v082r25 release. byuu says: Ryphecha fixed Gun Nac, it was some sort of problem with blank sprite address fetching messing with the MMC3 I've started on an XML parser for iNES-free loading, but it's pretty barebones right now. Only NROM-256 loads, and you have to make it a compile-time thing (so other games work for now.) Updated nall with nullptr stuff. nall/detect is now nall/intrinsic and has both #defines + static constants that can be used to detect the platform (allows for run-time platform checks where practical.) ruby has a Makefile now, that makes using it in other projects a lot easier
2011-09-29 12:08:22 +00:00
raster.soam[raster.oam_counter].id = n;
raster.soam[raster.oam_counter].y = oam[(n * 4) + 0];
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
raster.soam[raster.oam_counter].tile = oam[(n * 4) + 1];
raster.soam[raster.oam_counter].attr = oam[(n * 4) + 2];
Update to v082r25 release. byuu says: Ryphecha fixed Gun Nac, it was some sort of problem with blank sprite address fetching messing with the MMC3 I've started on an XML parser for iNES-free loading, but it's pretty barebones right now. Only NROM-256 loads, and you have to make it a compile-time thing (so other games work for now.) Updated nall with nullptr stuff. nall/detect is now nall/intrinsic and has both #defines + static constants that can be used to detect the platform (allows for run-time platform checks where practical.) ruby has a Makefile now, that makes using it in other projects a lot easier
2011-09-29 12:08:22 +00:00
raster.soam[raster.oam_counter].x = oam[(n * 4) + 3];
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
raster.oam_counter++;
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
}
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
void PPU::raster_scanline() {
if((status.ly >= 240 && status.ly <= 260)) {
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
for(unsigned x = 0; x < 341; x++) tick();
return scanline();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
}
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
raster.oam_iterator = 0;
raster.oam_counter = 0;
for(unsigned n = 0; n < 8; n++) {
Update to v082r25 release. byuu says: Ryphecha fixed Gun Nac, it was some sort of problem with blank sprite address fetching messing with the MMC3 I've started on an XML parser for iNES-free loading, but it's pretty barebones right now. Only NROM-256 loads, and you have to make it a compile-time thing (so other games work for now.) Updated nall with nullptr stuff. nall/detect is now nall/intrinsic and has both #defines + static constants that can be used to detect the platform (allows for run-time platform checks where practical.) ruby has a Makefile now, that makes using it in other projects a lot easier
2011-09-29 12:08:22 +00:00
raster.soam[n].id = 64;
raster.soam[n].y = 0xff;
raster.soam[n].tile = 0xff;
raster.soam[n].attr = 0xff;
raster.soam[n].x = 0xff;
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
raster.soam[n].tiledatalo = 0;
raster.soam[n].tiledatahi = 0;
}
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
for(unsigned tile = 0; tile < 32; tile++) { // 0-255
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
unsigned nametable = chr_load(0x2000 | (status.vaddr & 0x0fff));
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
unsigned tileaddr = status.bg_addr + (nametable << 4) + (scrolly() & 7);
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
raster_pixel();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
raster_pixel();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
unsigned attribute = chr_load(0x23c0 | (status.vaddr & 0x0fc0) | ((scrolly() >> 5) << 3) | (scrollx() >> 5));
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
if(scrolly() & 16) attribute >>= 4;
if(scrollx() & 16) attribute >>= 2;
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
raster_pixel();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
scrollx_increment();
if(tile == 31) scrolly_increment();
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
raster_pixel();
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
raster_sprite();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
unsigned tiledatalo = chr_load(tileaddr + 0);
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
raster_pixel();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
raster_pixel();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
unsigned tiledatahi = chr_load(tileaddr + 8);
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
raster_pixel();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r09 release. byuu says: Skip this build if you can, it's CPU+PPU timing improvements that should not visibly affect anything.
2011-09-15 12:14:07 +00:00
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
raster_pixel();
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
raster_sprite();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
raster.nametable = (raster.nametable << 8) | nametable;
raster.attribute = (raster.attribute << 2) | (attribute & 3);
raster.tiledatalo = (raster.tiledatalo << 8) | tiledatalo;
raster.tiledatahi = (raster.tiledatahi << 8) | tiledatahi;
}
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
for(unsigned n = 0; n < 8; n++) raster.oam[n] = raster.soam[n];
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
for(unsigned sprite = 0; sprite < 8; sprite++) { //256-319
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
unsigned nametable = chr_load(0x2000 | (status.vaddr & 0x0fff));
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
if(raster_enable() && sprite == 0) status.vaddr = (status.vaddr & 0x7be0) | (status.taddr & 0x041f); //257
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
unsigned attribute = chr_load(0x23c0 | (status.vaddr & 0x0fc0) | ((scrolly() >> 5) << 3) | (scrollx() >> 5));
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
unsigned tileaddr = (sprite_height() == 8)
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
? status.sprite_addr + raster.oam[sprite].tile * 16
: ((raster.oam[sprite].tile & ~1) * 16) + ((raster.oam[sprite].tile & 1) * 0x1000);
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r25 release. byuu says: Ryphecha fixed Gun Nac, it was some sort of problem with blank sprite address fetching messing with the MMC3 I've started on an XML parser for iNES-free loading, but it's pretty barebones right now. Only NROM-256 loads, and you have to make it a compile-time thing (so other games work for now.) Updated nall with nullptr stuff. nall/detect is now nall/intrinsic and has both #defines + static constants that can be used to detect the platform (allows for run-time platform checks where practical.) ruby has a Makefile now, that makes using it in other projects a lot easier
2011-09-29 12:08:22 +00:00
unsigned spritey = (status.ly - raster.oam[sprite].y) & (sprite_height() - 1);
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
if(raster.oam[sprite].attr & 0x80) spritey ^= (sprite_height() - 1);
tileaddr += spritey + (spritey & 8);
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
raster.oam[sprite].tiledatalo = chr_load(tileaddr + 0);
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
tick();
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
raster.oam[sprite].tiledatahi = chr_load(tileaddr + 8);
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
if(raster_enable() && sprite == 6 && status.ly == 261) status.vaddr = status.taddr; //304
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
}
for(unsigned tile = 0; tile < 2; tile++) { //320-335
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
unsigned nametable = chr_load(0x2000 | (status.vaddr & 0x0fff));
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
unsigned tileaddr = status.bg_addr + (nametable << 4) + (scrolly() & 7);
tick();
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r23 release. byuu says: Ryphecha fixed the FF1 glitch, added two highpass filters to NES audio output (still working on a lowpass), and fixed VRC6 audio issues. I reduced the complexity of all eight supported mapping modes, and standardized them; and added in an overscan filter (not in archive) for chopping off all the NES edge garbage (8 pixels on the left and right, 16 on the top and bottom.) It's extreme, but anything less shows junk. I may make this part of the menu option, just clip off more on NES mode than SNES mode.
2011-09-26 11:38:57 +00:00
unsigned attribute = chr_load(0x23c0 | (status.vaddr & 0x0fc0) | ((scrolly() >> 5) << 3) | (scrollx() >> 5));
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
if(scrolly() & 16) attribute >>= 4;
if(scrollx() & 16) attribute >>= 2;
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
scrollx_increment();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
unsigned tiledatalo = chr_load(tileaddr + 0);
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
Update to v082r11 release. byuu says: Emulates grayscale and color emphasis modes, improves sprite timing and PPU bus fetching behavior with the PPU disabled.
2011-09-15 12:27:34 +00:00
unsigned tiledatahi = chr_load(tileaddr + 8);
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
raster.nametable = (raster.nametable << 8) | nametable;
raster.attribute = (raster.attribute << 2) | (attribute & 3);
raster.tiledatalo = (raster.tiledatalo << 8) | tiledatalo;
raster.tiledatahi = (raster.tiledatahi << 8) | tiledatahi;
}
//336-339
Update to v082r31 release. byuu says: Enable Overscan->Mask Overscan [best I'm doing] Video settings -> Overscan mask: (horizontal, vertical: 0-16 on each side) [only works on NES+SNES] BPS patching works for NES+SNES+GB; note that long-term I want BPS to only patch headerless PRG+CHR files, but we'll need a database / completed board mapping system first. MMC1 splits the board/chip markups a bit better. My attempts to emulate the extra CHR bits per hardware fail repeatedly. Docs do not explain how it works at all. Emulated enough of the MMC5 to play Castlevania 3. The MMC5 is easily the most complicated mapper the NES has to offer, and of course, has the most pitifully vague and difficult documentation of any mapper around. It seems the only way anyone is able to emulate this chip is empirically. Everyone else apparently hooks the MMC5 right into the PPU core, which I of course cannot do. So I had to come up with my own (probably wrong) way to synchronize the PPU simply by observing CHR bus accesses. I must say, I over-estimated how well fleshed out the NES hardware documentation was. Shit hits the fan right after MMC3. It's miles beyond the GB scene, but I find myself wanting for someone with the technical writing ability of anomie. I can't find anything at all on how we're supposed to support the $2007 port reads/writes without it extra-clocking the PPU's bus, which could throw off mapper timing. Absolutely nothing at all on the subject anywhere, something everybody is required to do for all cycle-based emulators and ... nada. Anyway, I'd like to refine the MMC5 a bit, getting Just Breed playable even without sound would be really nice (it's a fun game.) Then we need to get libsnes building again (ugh, getting worn out in backporting changes to it.) Once v083 is public, we can start discussing a new API for multiple emulators.
2011-10-06 09:53:16 +00:00
chr_load(0x2000 | (status.vaddr & 0x0fff));
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v083r03 release. byuu says: Lots of phoenix issues fixed, especially for Windows and GTK+. NES emulation passes all ten ppu_vbl_nmi tests from blargg. Sprite timing is nowhere near accurate yet (always consumes four clocks per sprite), but oh well.
2011-10-24 11:35:34 +00:00
bool skip = (raster_enable() && status.field == 1 && status.ly == 261);
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
Update to v082r31 release. byuu says: Enable Overscan->Mask Overscan [best I'm doing] Video settings -> Overscan mask: (horizontal, vertical: 0-16 on each side) [only works on NES+SNES] BPS patching works for NES+SNES+GB; note that long-term I want BPS to only patch headerless PRG+CHR files, but we'll need a database / completed board mapping system first. MMC1 splits the board/chip markups a bit better. My attempts to emulate the extra CHR bits per hardware fail repeatedly. Docs do not explain how it works at all. Emulated enough of the MMC5 to play Castlevania 3. The MMC5 is easily the most complicated mapper the NES has to offer, and of course, has the most pitifully vague and difficult documentation of any mapper around. It seems the only way anyone is able to emulate this chip is empirically. Everyone else apparently hooks the MMC5 right into the PPU core, which I of course cannot do. So I had to come up with my own (probably wrong) way to synchronize the PPU simply by observing CHR bus accesses. I must say, I over-estimated how well fleshed out the NES hardware documentation was. Shit hits the fan right after MMC3. It's miles beyond the GB scene, but I find myself wanting for someone with the technical writing ability of anomie. I can't find anything at all on how we're supposed to support the $2007 port reads/writes without it extra-clocking the PPU's bus, which could throw off mapper timing. Absolutely nothing at all on the subject anywhere, something everybody is required to do for all cycle-based emulators and ... nada. Anyway, I'd like to refine the MMC5 a bit, getting Just Breed playable even without sound would be really nice (it's a fun game.) Then we need to get libsnes building again (ugh, getting worn out in backporting changes to it.) Once v083 is public, we can start discussing a new API for multiple emulators.
2011-10-06 09:53:16 +00:00
chr_load(0x2000 | (status.vaddr & 0x0fff));
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
tick();
tick();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
//340
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
if(skip == false) tick();
Update to v082r08 release. byuu says: Fixed up the PPU to be as close to cycle-perfect as possible. Fixed RMW to write twice instead of read twice. Ryphecha added AOROM and fixed up MMC1. Have CNROM too, but I need to rethink the mapper/board distinction. Apparently the same logic IC is used in both AOROM and CNROM, and it's just a matter of routing the pins to it. I need to consider how crazy it'd be to emulate the logic IC and have boards simply reroute pins to it. If it's too much work, we'll just treat mappers as board + logic IC combinations. We'll see.
2011-09-12 10:30:44 +00:00
Update to v083r02 release. byuu says: It seems impossible to pass blargg's NES ppu_vbl_nmi test 03 and 07 at the same time. Wrote up a description of the problem here: http://nesdev.parodius.com/bbs/viewtopic.php?p=85156#85156
2011-10-18 10:05:29 +00:00
return scanline();
Update to v082r07 release. byuu says: Wrote a cycle-based PPU renderer, ~95% hardware accurate for BGs, not so much for sprites yet. Mednafen has been helping out a lot.
2011-09-12 10:17:12 +00:00
}
Update to v082r04 release. byuu says: So, here's the deal. I now have three emulators. I don't think the NES/GB ones are at all useful, but I do want them to be eventually. And having them have those pathetic little GUIs like ui-gameboy, and keeping everything in separate project folders, just doesn't work well for me. I kind of "got around" the issue with the Game Boy, by only allowing SGB mode emulation. But there is no "Super Nintendo" ... er ... wait ... uhmm ... well, you know what I mean anyway. So, my idea is to write a multi-emulator GUI, and keep the projects together. The GUI is not going to change much. The way I envision this working: At startup, you have a menubar with: "Cartridge, Settings, Tools, Help". Cartridge has "Load NES Cartridge", "Load SNES Cartridge", etc. When you load something, Cartridge is replaced with the appropriate system menu, eg "SNES". Here you have all your regular items: "power, reset, controller port selection, etc." There is also a new "Unload Cartridge" option, which is how you restore the "Cartridge" menu again. I have no plans to emulate any other systems, but if I ever do emulate something that doesn't take cartridges, I'll change the name to just "Load" or something. The cheat editor / state manager will look and act exactly the same. The settings panel will look exactly the same. I'll simply show/hide system-specific options as needed, like NES/SNES aspect ratio correction, etc. The input mapping window will just have settings for the currently loaded system. Video and audio tweaking will apply cross-system, as will hotkey mapping. The GUI stuff is mostly copy-paste, so it should only take me a week to get it 95% back to where it was, so don't worry, this isn't total GUI rewrite #80. I am, however, making all the objects pointers, so that I can destruct them all prior to main() returning, which is certainly one way of fixing that annoying Windows/Qt crash. Please only test on Linux. The Windows port is broken to hell, and will give you a bad impression of the idea: - menu groups are not hiding for some reason (all groups are showing, it looks hideous) - Timer interval(0) is taking 16ms per call, capping the FPS to ~64 tops [FWIW, bsnes/accuracy gets 130fps, bgameboy gets 450fps, bnes gets 800fps; all run at lowest possible granularity] - the OS keeps beeping when you press keys (AGAIN) Of course, Qt and GTK+ don't let you shrink a window from the requested geometry size, because they suck. So the video scaling stuff doesn't work all that great yet. Man, a metric fuckton of things need to be fixed in phoenix, and I really don't know how to fix any of them :/
2011-09-09 04:08:38 +00:00
}