ShuriZma
/
bsnes
mirror of https://github.com/bsnes-emu/bsnes.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
bsnes/bsnes/gba/ppu/mmio.cpp

232 lines
8.6 KiB
C++
Raw Normal View History

Update to v087r14 release. byuu says: Fixed aforementioned issues. [From a previous post: - mul was using r(d) instead of r(n) for accumulate. - mull didn't remove c/v clear. - APU register mask was broken, so SOUNDBIAS was reading out wrong. - APU was only mapping 0x088 and not 0x089 as well. - Halfword reads in CPU+PPU+APU were all reading from the low address each time.] All CPU+PPU registers are now hooked up (not that they do anything.) SOUNDBIAS for APU was hooked up, got tired of working on it for the rest :P I recall from the GB APU that you can't just assign values for the APU MMIO regs. They do odd reload things as well. Also, was using MMIO read code like this: return ( (flaga << 0) || (flagb << 1) || (flagc << 2) ); Logical or doesn't work so well with building flags :P Bad habit from how I split multiple conditionals across several lines. So ... r14 is basically what r13 should have been yesterday, delaying my schedule by yet another day :(
2012-04-01 01:41:15 +00:00
uint8 PPU::read(uint32 addr) {
switch(addr) {
Update to v087r12 release. byuu says: Enough to get through the BIOS and into cartridge ROM. I am a bit annoyed that I was basically told that the GBA PPU wasn't that bad. Sprites are a clusterfuck, easily worse than Mode7, docs don't even begin to explain them in enough detail. This is going to be fun.
2012-03-31 08:14:31 +00:00
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//DISPCNT
case 0x04000000: return regs.control >> 0;
case 0x04000001: return regs.control >> 8;
//GRSWP
case 0x04000002: return regs.greenswap;
case 0x04000003: return 0u;
//DISPSTAT
case 0x04000004: return regs.status >> 0;
case 0x04000005: return regs.status >> 8;
Update to v087r12 release. byuu says: Enough to get through the BIOS and into cartridge ROM. I am a bit annoyed that I was basically told that the GBA PPU wasn't that bad. Sprites are a clusterfuck, easily worse than Mode7, docs don't even begin to explain them in enough detail. This is going to be fun.
2012-03-31 08:14:31 +00:00
//VCOUNT
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
case 0x04000006: return regs.vcounter >> 0;
case 0x04000007: return regs.vcounter >> 8;
//BG0CNT
case 0x04000008: return regs.bg[0].control >> 0;
case 0x04000009: return regs.bg[0].control >> 8;
//BG1CNT
case 0x0400000a: return regs.bg[1].control >> 0;
case 0x0400000b: return regs.bg[1].control >> 8;
//BG2CNT
case 0x0400000c: return regs.bg[2].control >> 0;
case 0x0400000d: return regs.bg[2].control >> 8;
//BG3CNT
case 0x0400000e: return regs.bg[3].control >> 0;
case 0x0400000f: return regs.bg[3].control >> 8;
//WININ
case 0x04000048: return regs.window[0].in;
case 0x04000049: return regs.window[1].in;
case 0x0400004a: return regs.window[0].out;
case 0x0400004b: return regs.windowobj.in;
//BLTCNT
case 0x04000050: return regs.blend.control >> 0;
case 0x04000051: return regs.blend.control >> 8;
Update to v087r12 release. byuu says: Enough to get through the BIOS and into cartridge ROM. I am a bit annoyed that I was basically told that the GBA PPU wasn't that bad. Sprites are a clusterfuck, easily worse than Mode7, docs don't even begin to explain them in enough detail. This is going to be fun.
2012-03-31 08:14:31 +00:00
}
return 0u;
}
Update to v087r14 release. byuu says: Fixed aforementioned issues. [From a previous post: - mul was using r(d) instead of r(n) for accumulate. - mull didn't remove c/v clear. - APU register mask was broken, so SOUNDBIAS was reading out wrong. - APU was only mapping 0x088 and not 0x089 as well. - Halfword reads in CPU+PPU+APU were all reading from the low address each time.] All CPU+PPU registers are now hooked up (not that they do anything.) SOUNDBIAS for APU was hooked up, got tired of working on it for the rest :P I recall from the GB APU that you can't just assign values for the APU MMIO regs. They do odd reload things as well. Also, was using MMIO read code like this: return ( (flaga << 0) || (flagb << 1) || (flagc << 2) ); Logical or doesn't work so well with building flags :P Bad habit from how I split multiple conditionals across several lines. So ... r14 is basically what r13 should have been yesterday, delaying my schedule by yet another day :(
2012-04-01 01:41:15 +00:00
void PPU::write(uint32 addr, uint8 byte) {
switch(addr) {
Update to v087r12 release. byuu says: Enough to get through the BIOS and into cartridge ROM. I am a bit annoyed that I was basically told that the GBA PPU wasn't that bad. Sprites are a clusterfuck, easily worse than Mode7, docs don't even begin to explain them in enough detail. This is going to be fun.
2012-03-31 08:14:31 +00:00
//DISPCNT
case 0x04000000: regs.control = (regs.control & 0xff00) | (byte << 0); return;
case 0x04000001: regs.control = (regs.control & 0x00ff) | (byte << 8); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//GRSWP
case 0x04000002: regs.greenswap = byte & 0x01; return;
case 0x04000003: return;
//DISPSTAT
case 0x04000004:
regs.status.irqvblank = byte & (1 << 3);
regs.status.irqhblank = byte & (1 << 4);
regs.status.irqvcoincidence = byte & (1 << 5);
return;
case 0x04000005:
regs.status.vcoincidence = byte;
return;
//BG0CNT
case 0x04000008: regs.bg[0].control = (regs.bg[0].control & 0xff00) | (byte << 0); return;
case 0x04000009: regs.bg[0].control = (regs.bg[0].control & 0x00ff) | (byte << 8); return;
//BG1CNT
case 0x0400000a: regs.bg[1].control = (regs.bg[1].control & 0xff00) | (byte << 0); return;
case 0x0400000b: regs.bg[1].control = (regs.bg[1].control & 0x00ff) | (byte << 8); return;
//BG2CNT
case 0x0400000c: regs.bg[2].control = (regs.bg[2].control & 0xff00) | (byte << 0); return;
case 0x0400000d: regs.bg[2].control = (regs.bg[2].control & 0x00ff) | (byte << 8); return;
//BG3CNT
case 0x0400000e: regs.bg[3].control = (regs.bg[3].control & 0xff00) | (byte << 0); return;
case 0x0400000f: regs.bg[3].control = (regs.bg[3].control & 0x00ff) | (byte << 8); return;
//BG0HOFS
case 0x04000010: regs.bg[0].hoffset = (regs.bg[0].hoffset & 0xff00) | (byte << 0); return;
case 0x04000011: regs.bg[0].hoffset = (regs.bg[0].hoffset & 0x00ff) | (byte << 8); return;
//BG0VOFS
case 0x04000012: regs.bg[0].voffset = (regs.bg[0].voffset & 0xff00) | (byte << 0); return;
case 0x04000013: regs.bg[0].voffset = (regs.bg[0].voffset & 0x00ff) | (byte << 8); return;
//BG1HOFS
case 0x04000014: regs.bg[1].hoffset = (regs.bg[1].hoffset & 0xff00) | (byte << 0); return;
case 0x04000015: regs.bg[1].hoffset = (regs.bg[1].hoffset & 0x00ff) | (byte << 8); return;
//BG1VOFS
case 0x04000016: regs.bg[1].voffset = (regs.bg[1].voffset & 0xff00) | (byte << 0); return;
case 0x04000017: regs.bg[1].voffset = (regs.bg[1].voffset & 0x00ff) | (byte << 8); return;
//BG2HOFS
case 0x04000018: regs.bg[2].hoffset = (regs.bg[2].hoffset & 0xff00) | (byte << 0); return;
case 0x04000019: regs.bg[2].hoffset = (regs.bg[2].hoffset & 0x00ff) | (byte << 8); return;
//BG2VOFS
case 0x0400001a: regs.bg[2].voffset = (regs.bg[2].voffset & 0xff00) | (byte << 0); return;
case 0x0400001b: regs.bg[2].voffset = (regs.bg[2].voffset & 0x00ff) | (byte << 8); return;
//BG3HOFS
case 0x0400001c: regs.bg[3].hoffset = (regs.bg[3].hoffset & 0xff00) | (byte << 0); return;
case 0x0400001d: regs.bg[3].hoffset = (regs.bg[3].hoffset & 0x00ff) | (byte << 8); return;
//BG3VOFS
case 0x0400001e: regs.bg[3].voffset = (regs.bg[3].voffset & 0xff00) | (byte << 0); return;
case 0x0400001f: regs.bg[3].voffset = (regs.bg[3].voffset & 0x00ff) | (byte << 8); return;
//BG2PA
case 0x04000020: regs.bg[2].pa = (regs.bg[2].pa & 0xff00) | (byte << 0); return;
case 0x04000021: regs.bg[2].pa = (regs.bg[2].pa & 0x00ff) | (byte << 8); return;
//BG2PB
case 0x04000022: regs.bg[2].pb = (regs.bg[2].pb & 0xff00) | (byte << 0); return;
case 0x04000023: regs.bg[2].pb = (regs.bg[2].pb & 0x00ff) | (byte << 8); return;
//BG2PC
case 0x04000024: regs.bg[2].pc = (regs.bg[2].pc & 0xff00) | (byte << 0); return;
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x04000025: regs.bg[2].pc = (regs.bg[2].pc & 0x00ff) | (byte << 8); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//BG2PD
case 0x04000026: regs.bg[2].pd = (regs.bg[2].pd & 0xff00) | (byte << 0); return;
case 0x04000027: regs.bg[2].pd = (regs.bg[2].pd & 0x00ff) | (byte << 8); return;
//BG2X_L
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x04000028: regs.bg[2].lx = regs.bg[2].x = (regs.bg[2].x & 0xffffff00) | (byte << 0); return;
case 0x04000029: regs.bg[2].lx = regs.bg[2].x = (regs.bg[2].x & 0xffff00ff) | (byte << 8); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//BG2X_H
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x0400002a: regs.bg[2].lx = regs.bg[2].x = (regs.bg[2].x & 0xff00ffff) | (byte << 16); return;
case 0x0400002b: regs.bg[2].lx = regs.bg[2].x = (regs.bg[2].x & 0x00ffffff) | (byte << 24); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//BG2Y_L
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x0400002c: regs.bg[2].ly = regs.bg[2].y = (regs.bg[2].y & 0xffffff00) | (byte << 0); return;
case 0x0400002d: regs.bg[2].ly = regs.bg[2].y = (regs.bg[2].y & 0xffff00ff) | (byte << 8); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//BG2Y_H
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x0400002e: regs.bg[2].ly = regs.bg[2].y = (regs.bg[2].y & 0xff00ffff) | (byte << 16); return;
case 0x0400002f: regs.bg[2].ly = regs.bg[2].y = (regs.bg[2].y & 0x00ffffff) | (byte << 24); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//BG3PA
case 0x04000030: regs.bg[3].pa = (regs.bg[3].pa & 0xff00) | (byte << 0); return;
case 0x04000031: regs.bg[3].pa = (regs.bg[3].pa & 0x00ff) | (byte << 8); return;
//BG3PB
case 0x04000032: regs.bg[3].pb = (regs.bg[3].pb & 0xff00) | (byte << 0); return;
case 0x04000033: regs.bg[3].pb = (regs.bg[3].pb & 0x00ff) | (byte << 8); return;
//BG3PC
case 0x04000034: regs.bg[3].pc = (regs.bg[3].pc & 0xff00) | (byte << 0); return;
case 0x04000035: regs.bg[3].pc = (regs.bg[3].pc & 0x00ff) | (byte << 8); return;
//BG3PD
case 0x04000036: regs.bg[3].pd = (regs.bg[3].pd & 0xff00) | (byte << 0); return;
case 0x04000037: regs.bg[3].pd = (regs.bg[3].pd & 0x00ff) | (byte << 8); return;
//BG3X_L
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x04000038: regs.bg[3].lx = regs.bg[3].x = (regs.bg[3].x & 0xffffff00) | (byte << 0); return;
case 0x04000039: regs.bg[3].lx = regs.bg[3].x = (regs.bg[3].x & 0xffff00ff) | (byte << 8); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//BG3X_H
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x0400003a: regs.bg[3].lx = regs.bg[3].x = (regs.bg[3].x & 0xff00ffff) | (byte << 16); return;
case 0x0400003b: regs.bg[3].lx = regs.bg[3].x = (regs.bg[3].x & 0x00ffffff) | (byte << 24); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//BG3Y_L
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x0400003c: regs.bg[3].ly = regs.bg[3].y = (regs.bg[3].y & 0xffffff00) | (byte << 0); return;
case 0x0400003d: regs.bg[3].ly = regs.bg[3].y = (regs.bg[3].y & 0xffff00ff) | (byte << 8); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//BG3Y_H
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
case 0x0400003e: regs.bg[3].ly = regs.bg[3].y = (regs.bg[3].y & 0xff00ffff) | (byte << 16); return;
case 0x0400003f: regs.bg[3].ly = regs.bg[3].y = (regs.bg[3].y & 0x00ffffff) | (byte << 24); return;
Update to v087r13 release. byuu says: Contains all of Cydrak's fixes, sans PPU. On the PPU front, I've hooked up 100% of read and write registers. All three DISPSTAT IRQs (Vblank, Hblank, Vcoincidence) are connected now as well. Super Mario Advance now runs without *appearing* to crash, although it's hard to tell since I have no video or sound :P ARM Wrestler is known to run, as is the BIOS.
2012-03-31 08:17:36 +00:00
//WIN0H
case 0x04000040: regs.window[0].x2 = byte; return;
case 0x04000041: regs.window[0].x1 = byte; return;
//WIN1H
case 0x04000042: regs.window[1].x2 = byte; return;
case 0x04000043: regs.window[1].x1 = byte; return;
//WIN0V
case 0x04000044: regs.window[0].y2 = byte; return;
case 0x04000045: regs.window[0].y1 = byte; return;
//WIN1V
case 0x04000046: regs.window[1].y2 = byte; return;
case 0x04000047: regs.window[1].y1 = byte; return;
//WININ
case 0x04000048: regs.window[0].in = byte; return;
case 0x04000049: regs.window[1].in = byte; return;
//WINOUT
case 0x0400004a: regs.window[0].out = regs.window[1].out = byte; return;
case 0x0400004b: regs.windowobj.in = byte; return;
//MOSAIC
case 0x0400004c:
regs.mosaic.bghsize = byte >> 0;
regs.mosaic.bgvsize = byte >> 4;
return;
case 0x0400004d:
regs.mosaic.objhsize = byte >> 0;
regs.mosaic.objvsize = byte >> 4;
return;
//BLDCNT
case 0x04000050: regs.blend.control = (regs.blend.control & 0xff00) | (byte << 0); return;
case 0x04000051: regs.blend.control = (regs.blend.control & 0x00ff) | (byte << 8); return;
//BLDALPHA
case 0x04000052: regs.blend.eva = std::min(16, byte & 0x1f); return;
case 0x04000053: regs.blend.evb = std::min(16, byte & 0x1f); return;
//BLDY
case 0x04000054: regs.blend.evy = std::min(16, byte & 0x1f); return;
case 0x04000055: return;
Update to v087r12 release. byuu says: Enough to get through the BIOS and into cartridge ROM. I am a bit annoyed that I was basically told that the GBA PPU wasn't that bad. Sprites are a clusterfuck, easily worse than Mode7, docs don't even begin to explain them in enough detail. This is going to be fun.
2012-03-31 08:14:31 +00:00
}
}