2013-12-20 11:40:39 +00:00
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#include <gba/gba.hpp>
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namespace GameBoyAdvance {
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//Game Boy Player emulation
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Player player;
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Update to v103r07 release.
byuu says:
Changelog:
- gba/cpu: massive code cleanup effort
- gba/cpu: DMA can run in between active instructions¹
- gba/cpu: added two-cycle startup delay between DMA activation and
DMA transfers²
- processor/spc700: BBC, BBC, CBNE cycle 4 is an idle cycle
- processor/spc700: ADDW, SUBW, MOVW (read) cycle 4 is an idle cycle
¹: unfortunately, this causes yet another performance penalty for the
poor GBA core =( Also, I think I may have missed disabling DMAs while
the CPU is stopped. I'll fix that in the next WIP.
²: I put the waiting counter decrement at the wrong place, so this
doesn't actually work. Needs to be more like
this:
auto CPU::step(uint clocks) -> void {
for(auto _ : range(clocks)) {
for(auto& timer : this->timer) timer.run();
for(auto& dma : this->dma) if(dma.active && dma.waiting) dma.waiting--;
context.clock++;
}
...
auto CPU::DMA::run() -> bool {
if(cpu.stopped() || !active || waiting) return false;
transfer();
if(irq) cpu.irq.flag |= CPU::Interrupt::DMA0 << id;
if(drq && id == 3) cpu.irq.flag |= CPU::Interrupt::Cartridge;
return true;
}
Of course, the real fix will be restructuring how DMA works, so that
it's always running in parallel with the CPU instead of this weird
design where it tries to run all channels in some kind of loop until no
channels are active anymore whenever one channel is activated.
Not really sure how to design that yet, however.
2017-07-05 05:29:27 +00:00
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#include "serialization.cpp"
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2013-12-20 11:40:39 +00:00
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2015-11-16 08:38:05 +00:00
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auto Player::power() -> void {
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2013-12-20 11:40:39 +00:00
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status.enable = false;
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status.rumble = false;
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status.logoDetected = false;
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status.logoCounter = 0;
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status.packet = 0;
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status.send = 0;
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status.recv = 0;
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}
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2015-11-16 08:38:05 +00:00
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auto Player::frame() -> void {
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Update to v094r09 release.
byuu says:
This will easily be the biggest diff in the history of higan. And not in
a good way.
* target-higan and target-loki have been blown away completely
* nall and ruby massively updated
* phoenix replaced with hiro (pretty near a total rewrite)
* target-higan restarted using hiro (just a window for now)
* all emulation cores updated to compile again
* installation changed to not require root privileges (installs locally)
For the foreseeable future (maybe even permanently?), the new higan UI
will only build under Linux/BSD with GTK+ 2.20+. Probably the most
likely route for Windows/OS X will be to try and figure out how to build
hiro/GTK on those platforms, as awful as that would be. The other
alternative would be to produce new UIs for those platforms ... which
would actually be a good opportunity to make something much more user
friendly.
Being that I just started on this a few hours ago, that means that for
at least a few weeks, don't expect to be able to actually play any
games. Right now, you can pretty much just compile the binary and that's
it. It's quite possible that some nall changes didn't produce
compilation errors, but will produce runtime errors. So until the UI can
actually load games, we won't know if anything is broken. But we should
mostly be okay. It was mostly just trim<1> -> trim changes, moving to
Hash::SHA256 (much cleaner), and patching some reckless memory copy
functions enough to compile.
Progress isn't going to be like it was before: I'm now dividing my time
much thinner between studying and other hobbies.
My aim this time is not to produce a binary for everyone to play games
on. Rather, it's to keep the emulator alive. I want to be able to apply
critical patches again. And I would also like the base of the emulator
to live on, for use in other emulator frontends that utilize higan.
2015-02-26 10:10:46 +00:00
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uint32 hash = Hash::CRC32(ppu.output, 240 * 160 * sizeof(uint32)).value();
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2013-12-20 11:40:39 +00:00
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status.logoDetected = (hash == 0x7776eb55);
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if(status.logoDetected) {
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status.enable = true;
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status.logoCounter = (status.logoCounter + 1) % 3;
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status.packet = 0;
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}
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2015-11-16 08:38:05 +00:00
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if(!status.enable) return;
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2013-12-20 11:40:39 +00:00
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Update to v097r17 release.
byuu says:
Changelog:
- ruby: if DirectSoundCreate fails (no sound device present), return
false from init instead of crashing
- nall: improved edge case return values for
(basename,pathname,dirname,...)
- nall: renamed file_system_object class to inode
- nall: varuint_t replaced with VariadicNatural; which contains
.bit,.bits,.byte ala Natural/Integer
- nall: fixed boolean compilation error on Windows
- WS: popa should not restore SP
- GBA: rewrote the CPU/APU cores to use the .bit,.bits functions;
removed registers.cpp from each
Note that the GBA changes are extremely major. This is about five hours
worth of extremely delicate work. Any slight errors could break
emulation in extremely bad ways. Let's hold off on extensive testing
until the next WIP, after I do the same to the PPU.
So far ... endrift's SOUNDCNT_X I/O test is failing, although that code
didn't change, so clearly I messed up SOUNDCNT_H somehow ...
To compile on Windows:
1. change nall/string/platform.hpp line 47 to
return slice(result, 0, 3);
2. change ruby/video.wgl.cpp line 72 to
auto lock(uint32_t*& data, uint& pitch, uint width, uint height) -> bool {
3. add this line to the very top of hiro/windows/header.cpp:
#define boolean FuckYouMicrosoft
2016-02-23 11:08:44 +00:00
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//todo: verify which settings are actually required
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//values were taken from observing GBP-compatible games
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Update to v103r07 release.
byuu says:
Changelog:
- gba/cpu: massive code cleanup effort
- gba/cpu: DMA can run in between active instructions¹
- gba/cpu: added two-cycle startup delay between DMA activation and
DMA transfers²
- processor/spc700: BBC, BBC, CBNE cycle 4 is an idle cycle
- processor/spc700: ADDW, SUBW, MOVW (read) cycle 4 is an idle cycle
¹: unfortunately, this causes yet another performance penalty for the
poor GBA core =( Also, I think I may have missed disabling DMAs while
the CPU is stopped. I'll fix that in the next WIP.
²: I put the waiting counter decrement at the wrong place, so this
doesn't actually work. Needs to be more like
this:
auto CPU::step(uint clocks) -> void {
for(auto _ : range(clocks)) {
for(auto& timer : this->timer) timer.run();
for(auto& dma : this->dma) if(dma.active && dma.waiting) dma.waiting--;
context.clock++;
}
...
auto CPU::DMA::run() -> bool {
if(cpu.stopped() || !active || waiting) return false;
transfer();
if(irq) cpu.irq.flag |= CPU::Interrupt::DMA0 << id;
if(drq && id == 3) cpu.irq.flag |= CPU::Interrupt::Cartridge;
return true;
}
Of course, the real fix will be restructuring how DMA works, so that
it's always running in parallel with the CPU instead of this weird
design where it tries to run all channels in some kind of loop until no
channels are active anymore whenever one channel is activated.
Not really sure how to design that yet, however.
2017-07-05 05:29:27 +00:00
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if(!cpu.joybus.sc
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&& !cpu.joybus.sd
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&& !cpu.joybus.si
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&& !cpu.joybus.so
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&& !cpu.joybus.scMode
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&& !cpu.joybus.sdMode
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&& !cpu.joybus.siMode
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&& !cpu.joybus.soMode
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&& !cpu.joybus.siIRQEnable
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&& !cpu.joybus.mode
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&& !cpu.serial.shiftClockSelect
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&& !cpu.serial.shiftClockFrequency
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&& !cpu.serial.transferEnableReceive
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&& cpu.serial.transferEnableSend
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&& cpu.serial.startBit
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&& cpu.serial.transferLength
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&& cpu.serial.irqEnable
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Update to v097r17 release.
byuu says:
Changelog:
- ruby: if DirectSoundCreate fails (no sound device present), return
false from init instead of crashing
- nall: improved edge case return values for
(basename,pathname,dirname,...)
- nall: renamed file_system_object class to inode
- nall: varuint_t replaced with VariadicNatural; which contains
.bit,.bits,.byte ala Natural/Integer
- nall: fixed boolean compilation error on Windows
- WS: popa should not restore SP
- GBA: rewrote the CPU/APU cores to use the .bit,.bits functions;
removed registers.cpp from each
Note that the GBA changes are extremely major. This is about five hours
worth of extremely delicate work. Any slight errors could break
emulation in extremely bad ways. Let's hold off on extensive testing
until the next WIP, after I do the same to the PPU.
So far ... endrift's SOUNDCNT_X I/O test is failing, although that code
didn't change, so clearly I messed up SOUNDCNT_H somehow ...
To compile on Windows:
1. change nall/string/platform.hpp line 47 to
return slice(result, 0, 3);
2. change ruby/video.wgl.cpp line 72 to
auto lock(uint32_t*& data, uint& pitch, uint width, uint height) -> bool {
3. add this line to the very top of hiro/windows/header.cpp:
#define boolean FuckYouMicrosoft
2016-02-23 11:08:44 +00:00
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) {
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2013-12-20 11:40:39 +00:00
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status.packet = (status.packet + 1) % 17;
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switch(status.packet) {
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case 0: status.send = 0x0000494e; break;
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case 1: status.send = 0xb6b1494e; break;
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case 2: status.send = 0xb6b1494e; break;
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case 3: status.send = 0xb6b1544e; break;
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case 4: status.send = 0xabb1544e; break;
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case 5: status.send = 0xabb14e45; break;
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case 6: status.send = 0xb1ba4e45; break;
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case 7: status.send = 0xb1ba4f44; break;
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case 8: status.send = 0xb0bb4f44; break;
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case 9: status.send = 0xb0bb8002; break;
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case 10: status.send = 0x10000010; break;
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case 11: status.send = 0x20000013; break;
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case 12: status.send = 0x30000003; break;
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case 13: status.send = 0x30000003; break;
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case 14: status.send = 0x30000003; break;
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case 15: status.send = 0x30000003; break;
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case 16: status.send = 0x30000003; break;
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}
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Update to v103r07 release.
byuu says:
Changelog:
- gba/cpu: massive code cleanup effort
- gba/cpu: DMA can run in between active instructions¹
- gba/cpu: added two-cycle startup delay between DMA activation and
DMA transfers²
- processor/spc700: BBC, BBC, CBNE cycle 4 is an idle cycle
- processor/spc700: ADDW, SUBW, MOVW (read) cycle 4 is an idle cycle
¹: unfortunately, this causes yet another performance penalty for the
poor GBA core =( Also, I think I may have missed disabling DMAs while
the CPU is stopped. I'll fix that in the next WIP.
²: I put the waiting counter decrement at the wrong place, so this
doesn't actually work. Needs to be more like
this:
auto CPU::step(uint clocks) -> void {
for(auto _ : range(clocks)) {
for(auto& timer : this->timer) timer.run();
for(auto& dma : this->dma) if(dma.active && dma.waiting) dma.waiting--;
context.clock++;
}
...
auto CPU::DMA::run() -> bool {
if(cpu.stopped() || !active || waiting) return false;
transfer();
if(irq) cpu.irq.flag |= CPU::Interrupt::DMA0 << id;
if(drq && id == 3) cpu.irq.flag |= CPU::Interrupt::Cartridge;
return true;
}
Of course, the real fix will be restructuring how DMA works, so that
it's always running in parallel with the CPU instead of this weird
design where it tries to run all channels in some kind of loop until no
channels are active anymore whenever one channel is activated.
Not really sure how to design that yet, however.
2017-07-05 05:29:27 +00:00
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cpu.irq.flag |= CPU::Interrupt::Serial;
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2013-12-20 11:40:39 +00:00
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}
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}
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2015-11-16 08:38:05 +00:00
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auto Player::keyinput() -> maybe<uint16> {
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2014-02-09 05:59:46 +00:00
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if(status.logoDetected) {
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switch(status.logoCounter) {
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2016-02-16 09:27:55 +00:00
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case 0: return {0x03ff};
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case 1: return {0x03ff};
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case 2: return {0x030f};
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2014-02-09 05:59:46 +00:00
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}
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2013-12-20 11:40:39 +00:00
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}
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2014-02-09 05:59:46 +00:00
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return nothing;
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2013-12-20 11:40:39 +00:00
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}
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2015-11-16 08:38:05 +00:00
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auto Player::read() -> maybe<uint32> {
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2014-02-09 05:59:46 +00:00
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if(status.enable) return status.send;
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return nothing;
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2013-12-20 11:40:39 +00:00
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}
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Update to v097r17 release.
byuu says:
Changelog:
- ruby: if DirectSoundCreate fails (no sound device present), return
false from init instead of crashing
- nall: improved edge case return values for
(basename,pathname,dirname,...)
- nall: renamed file_system_object class to inode
- nall: varuint_t replaced with VariadicNatural; which contains
.bit,.bits,.byte ala Natural/Integer
- nall: fixed boolean compilation error on Windows
- WS: popa should not restore SP
- GBA: rewrote the CPU/APU cores to use the .bit,.bits functions;
removed registers.cpp from each
Note that the GBA changes are extremely major. This is about five hours
worth of extremely delicate work. Any slight errors could break
emulation in extremely bad ways. Let's hold off on extensive testing
until the next WIP, after I do the same to the PPU.
So far ... endrift's SOUNDCNT_X I/O test is failing, although that code
didn't change, so clearly I messed up SOUNDCNT_H somehow ...
To compile on Windows:
1. change nall/string/platform.hpp line 47 to
return slice(result, 0, 3);
2. change ruby/video.wgl.cpp line 72 to
auto lock(uint32_t*& data, uint& pitch, uint width, uint height) -> bool {
3. add this line to the very top of hiro/windows/header.cpp:
#define boolean FuckYouMicrosoft
2016-02-23 11:08:44 +00:00
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auto Player::write(uint2 addr, uint8 byte) -> void {
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2015-11-16 08:38:05 +00:00
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if(!status.enable) return;
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2013-12-20 11:40:39 +00:00
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2015-11-16 08:38:05 +00:00
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uint shift = addr << 3;
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2013-12-20 11:40:39 +00:00
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status.recv &= ~(255 << shift);
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status.recv |= byte << shift;
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if(addr == 3 && status.packet == 15) {
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status.rumble = (status.recv & 0xff) == 0x26; //on = 0x26, off = 0x04
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2017-01-13 01:15:45 +00:00
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platform->inputRumble(0, 0, 10, status.rumble);
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2013-12-20 11:40:39 +00:00
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}
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}
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}
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