mirror of https://github.com/bsnes-emu/bsnes.git
9 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Tim Allen
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8bbbc5e737 |
Update to v106r21 release.
byuu says:
Changelog:
- higan: target-tomoko has been renamed to target-higan
- Super Famicom: event has been renamed to
processor(architecture=uPD78214)
- Super Famicom: SNES-EVENT supported once more; under board IDs
EVENT-CC92 and EVENT-PF94
- Super Famicom: SNES-EVENT preliminarily set up to use DIP switch
settings ala the Nintendo Super System (incomplete)
- Super Famicom: MCC PSRAM moved inside the MCU, as it is remappable
- Super Famicom: MCC emulation rewritten from scratch; it is now
vastly more accurate than before
- Super Famicom: added BSC-1A5B9P-01 board definition to database;
corrected BS-MCC-RAM board definition
- Super Famicom: moved SHVC-LN3B-01 RAM outside of
processor(identifier=SDD1)
- higan: when selecting a default game to load for a new system entry,
it will change the system option to match the media type
- higan: the load text box on the system entry window is now editable;
can be used to erase entries
- icarus: fixed bug in Famicom importing
- icarus: importing unappended SNES coprocessor firmware will now
rename the firmware properly
- hiro/GTK,Qt: WM_CLASS is now set correctly in `argv[0]`, so
applications should show “higan”, “icarus” instead of “hiro” now
Note: if you wish to run the BS-X town cartridge, the database currently
lists the download RAM as type “PSRAM”. This needs to be changed to
“RAM” in order to load properly. Otherwise, the emulator will bomb
out on the load window, because BSC-1A5B9P-01 expects PSRAM to always be
present, but it won't find it with the wrong memory type. I'll correct
this in the database in a later release. For now, you can copy the game
portion of the manifest to a new manifest.bml file and drop it into the
gamepak folder until I fix the database.
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Tim Allen
|
6847058210 |
Update to v106r19 release.
byuu says:
Changelog:
- Super Famicom: everything outside of Nintendo Super System, Campus
Challenge '92 and Powerfest '94 should play
- Super Famicom: removed RAM from coprocessor/event (should use global
RAM)
- Super Famicom: removed RAM from SDD1 (should use global RAM)
- icarus: fixed Super Famicom game importing [hex_usr]
Also worth reminding that you'll need to disable database lookup in
order to run the BS-X Town cartridge right now. Plus, Star Ocean's
database entry still has the RAM in the wrong spot. The MSU1 code is not
looking at the right locations for data, so it's not going to work in
this release either.
I need to figure out what to call coprocessor/event and coprocessor/nss,
as neither are slots or processors like everything else.
Outside of those issues, all games for all systems should be playable,
at least to the extent they were in v106.
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Tim Allen
|
3d8be92550 |
Update to v106r3 release.
byuu says:
Changelog:
- Super Famicom: update to newer board markup syntax
- Super Famicom: update all mapped ROMs to be write-protected
- errata: SPC7110 set ram.writeProtect(true), I'll fix it in the
next WIP
- icarus: rewrote the Super Famicom heuristics module from scratch
Instead of icarus heuristics generating higan-specific mappings, it now
generates generic board IDs that can be used by any emulator. I had
originally planned to print out real PCB ID codes here, but these board
mappings are meant to be more generic, and I don't want them to look
real. The pseudo-codes are easy to parse, for example: `DSP-LOROM-NVRAM`
for Super Mario Kart, `SUPERFX-RAM` for Doom.
I'm going to make a `Boards (Generic).bml` file that will contain mapping
definitions for every board. Until this is done, any games not in the SNES
preservation database will fail to play because the mapping information is
now missing.
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Tim Allen
|
e9d2d56df9 |
Update to v105r1 release.
byuu says:
Changelog:
- higan: readded support for soft-reset to Famicom, Super Famicom,
Mega Drive cores (work in progress)
- handhelds lack soft reset obviously
- the PC Engine also lacks a physical reset button
- the Master System's reset button acts like a gamepad button, so
can't show up in the menu
- Mega Drive: power cycle wasn't initializing CPU (M68K) or APU (Z80)
RAM
- Super Famicom: fix SPC700 opcode 0x3b regression; fixes Majuu Ou
[Jonas Quinn]
- Super Famicom: fix SharpRTC save regression; fixes Dai Kaijuu
Monogatari II's real-time clock [Talarubi]
- Super Famicom: fix EpsonRTC save regression; fixes Tengai Makyou
Zero's real-time clock [Talarubi]
- Super Famicom: removed `*::init()` functions, as they were never used
- Super Famicom: removed all but two `*::load()` functions, as they
were not used
- higan: added option to auto-save backup RAM every five seconds
(enabled by default)
- this is in case the emulator crashes, or there's a power outage;
turn it off under advanced settings if you want
- libco: updated license from public domain to ISC, for consistency
with nall, ruby, hiro
- nall: Linux compiler defaults to g++; override with g++-version if
g++ is <= 4.8
- FreeBSD compiler default is going to remain g++49 until my dev
box OS ships with g++ >= 4.9
Errata: I have weird RAM initialization constants, thanks to hex_usr
and onethirdxcubed for both finding this:
http://wiki.nesdev.com/w/index.php?title=CPU_power_up_state&diff=11711&oldid=11184
I'll remove this in the next WIP.
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Tim Allen
|
bdc100e123 |
Update to v102r02 release.
byuu says:
Changelog:
- I caved on the `samples[] = {0.0}` thing, but I'm very unhappy about it
- if it's really invalid C++, then GCC needs to stop accepting it
in strict `-std=c++14` mode
- Emulator::Interface::Information::resettable is gone
- Emulator::Interface::reset() is gone
- FC, SFC, MD cores updated to remove soft reset behavior
- split GameBoy::Interface into GameBoyInterface,
GameBoyColorInterface
- split WonderSwan::Interface into WonderSwanInterface,
WonderSwanColorInterface
- PCE: fixed off-by-one scanline error [hex_usr]
- PCE: temporary hack to prevent crashing when VDS is set to < 2
- hiro: Cocoa: removed (u)int(#) constants; converted (u)int(#)
types to (u)int_(#)t types
- icarus: replaced usage of unique with strip instead (so we don't
mess up frameworks on macOS)
- libco: added macOS-specific section marker [Ryphecha]
So ... the major news this time is the removal of the soft reset
behavior. This is a major!! change that results in a 100KiB diff file,
and it's very prone to accidental mistakes!! If anyone is up for
testing, or even better -- looking over the code changes between v102r01
and v102r02 and looking for any issues, please do so. Ideally we'll want
to test every NES mapper type and every SNES coprocessor type by loading
said games and power cycling to make sure the games are all cleanly
resetting. It's too big of a change for me to cover there not being any
issues on my own, but this is truly critical code, so yeah ... please
help if you can.
We technically lose a bit of hardware documentation here. The soft reset
events do all kinds of interesting things in all kinds of different
chips -- or at least they do on the SNES. This is obviously not ideal.
But in the process of removing these portions of code, I found a few
mistakes I had made previously. It simplifies resetting the system state
a lot when not trying to have all the power() functions call the reset()
functions to share partial functionality.
In the future, the goal will be to come up with a way to add back in the
soft reset behavior via keyboard binding as with the Master System core.
What's going to have to happen is that the key binding will have to send
a "reset pulse" to every emulated chip, and those chips are going to
have to act independently to power() instead of reusing functionality.
We'll get there eventually, but there's many things of vastly greater
importance to work on right now, so it'll be a while. The information
isn't lost ... we'll just have to pull it out of v102 when we are ready.
Note that I left the SNES reset vector simulation code in, even though
it's not possible to trigger, for the time being.
Also ... the Super Game Boy core is still disconnected. To be honest, it
totally slipped my mind when I released v102 that it wasn't connected
again yet. This one's going to be pretty tricky to be honest. I'm
thinking about making a third GameBoy::Interface class just for SGB, and
coming up with some way of bypassing platform-> calls when in this
mode.
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Tim Allen
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ca277cd5e8 |
Update to v100r14 release.
byuu says:
(Windows: compile with -fpermissive to silence an annoying error. I'll
fix it in the next WIP.)
I completely replaced the time management system in higan and overhauled
the scheduler.
Before, processor threads would have "int64 clock"; and there would
be a 1:1 relationship between two threads. When thread A ran for X
cycles, it'd subtract X * B.Frequency from clock; and when thread B ran
for Y cycles, it'd add Y * A.Frequency from clock. This worked well
and allowed perfect precision; but it doesn't work when you have more
complicated relationships: eg the 68K can sync to the Z80 and PSG; the
Z80 to the 68K and PSG; so the PSG needs two counters.
The new system instead uses a "uint64 clock" variable that represents
time in attoseconds. Every time the scheduler exits, it subtracts
the smallest clock count from all threads, to prevent an overflow
scenario. The only real downside is that rounding errors mean that
roughly every 20 minutes, we have a rounding error of one clock cycle
(one 20,000,000th of a second.) However, this only applies to systems
with multiple oscillators, like the SNES. And when you're in that
situation ... there's no such thing as a perfect oscillator anyway. A
real SNES will be thousands of times less out of spec than 1hz per 20
minutes.
The advantages are pretty immense. First, we obviously can now support
more complex relationships between threads. Second, we can build a
much more abstracted scheduler. All of libco is now abstracted away
completely, which may permit a state-machine / coroutine version of
Thread in the future. We've basically gone from this:
auto SMP::step(uint clocks) -> void {
clock += clocks * (uint64)cpu.frequency;
dsp.clock -= clocks;
if(dsp.clock < 0 && !scheduler.synchronizing()) co_switch(dsp.thread);
if(clock >= 0 && !scheduler.synchronizing()) co_switch(cpu.thread);
}
To this:
auto SMP::step(uint clocks) -> void {
Thread::step(clocks);
synchronize(dsp);
synchronize(cpu);
}
As you can see, we don't have to do multiple clock adjustments anymore.
This is a huge win for the SNES CPU that had to update the SMP, DSP, all
peripherals and all coprocessors. Likewise, we don't have to synchronize
all coprocessors when one runs, now we can just synchronize the active
one to the CPU.
Third, when changing the frequencies of threads (think SGB speed setting
modes, GBC double-speed mode, etc), it no longer causes the "int64
clock" value to be erroneous.
Fourth, this results in a fairly decent speedup, mostly across the
board. Aside from the GBA being mostly a wash (for unknown reasons),
it's about an 8% - 12% speedup in every other emulation core.
Now, all of this said ... this was an unbelievably massive change, so
... you know what that means >_> If anyone can help test all types of
SNES coprocessors, and some other system games, it'd be appreciated.
----
Lastly, we have a bitchin' new about screen. It unfortunately adds
~200KiB onto the binary size, because the PNG->C++ header file
transformation doesn't compress very well, and I want to keep the
original resource files in with the higan archive. I might try some
things to work around this file size increase in the future, but for now
... yeah, slightly larger archive sizes, sorry.
The logo's a bit busted on Windows (the Label control's background
transparency and alignment settings aren't working), but works well on
GTK. I'll have to fix Windows before the next official release. For now,
look on my Twitter feed if you want to see what it's supposed to look
like.
----
EDIT: forgot about ICD2::Enter. It's doing some weird inverse
run-to-save thing that I need to implement support for somehow. So, save
states on the SGB core probably won't work with this WIP.
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Tim Allen
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4b29f4bad7 |
Update to v097r15 release.
byuu says: Changelog: - higan now uses Natural<Size>/Integer<Size> for its internal types - Super Famicom emulation now uses uint24 instead of uint for bus addresses (it's a 24-bit bus) - cleaned up gb/apu MMIO writes - cleaned up sfc/coprocessor/msu1 MMIO writes - ~3% speed penalty I've wanted to do that 24-bit bus thing for so long, but have always been afraid of the speed impact. It's probably going to hurt balanced/performance once they compile again, but it wasn't significant enough to harm the accuracy core's frame rate, thankfully. Only lost one frame per second. The GBA core handlers are clearly going to take a lot more work. The bit-ranges will make it substantially easier to handle, though. Lots of 32-bit registers where certain values span multiple bytes, but we have to be able to read/write at byte-granularity. |
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Tim Allen
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6c83329cae |
Update to v097r13 release.
byuu says: I refactored my schedulers. Added about ten lines to each scheduler, and removed about 100 lines of calling into internal state in the scheduler for the FC,SFC cores and about 30-40 lines for the other cores. All of its state is now private. Also reworked all of the entry points to static auto Enter() and auto main(). Where Enter() handles all the synchronization stuff, and main() doesn't need the while(true); loop forcing another layer of indentation everywhere. Took a few hours to do, but totally worth it. I'm surprised I didn't do this sooner. Also updated icarus gmake install rule to copy over the database. |
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Tim Allen
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47d4bd4d81 |
Update to v096r01 release.
byuu says: Changelog: - restructured the project and removed a whole bunch of old/dead directives from higan/GNUmakefile - huge amounts of work on hiro/cocoa (compiles but ~70% of the functionality is commented out) - fixed a masking error in my ARM CPU disassembler [Lioncash] - SFC: decided to change board cic=(411,413) back to board region=(ntsc,pal) ... the former was too obtuse If you rename Boolean (it's a problem with an include from ruby, not from hiro) and disable all the ruby drivers, you can compile an OS X binary, but obviously it's not going to do anything. It's a boring WIP, I just wanted to push out the project structure change now at the start of this WIP cycle. |