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bsnes/higan/gb/cartridge/mbc3/mbc3.cpp

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Update to v095r08 release. byuu says: Changelog: - added preliminary WASAPI driver (it's really terrible, though. Patches most welcome.) - all of processor/ updated to auto fn() -> ret syntax - all of gb/ updated to auto fn() -> ret syntax If you want to test the WASAPI driver, then edit ui-tomoko/GNUmakefile, and replace audio.xaudio2 with audio.wasapi Note that the two drivers are incompatible and cannot co-exist (yet. We can probably make it work in the future.) All that's left for the auto fn() -> ret syntax is the NES core and the balanced/performance SNES components. This is kind of a big deal because this syntax change causes diffs between WIPs to go crazy. So the sooner we get this done and out of the way, the better. It's also nice from a consistency standpoint, of course.
2015-11-21 07:36:48 +00:00
auto Cartridge::MBC3::second() -> void {
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
if(rtc_halt == false) {
if(++rtc_second >= 60) {
rtc_second = 0;
if(++rtc_minute >= 60) {
rtc_minute = 0;
if(++rtc_hour >= 24) {
rtc_hour = 0;
if(++rtc_day >= 512) {
rtc_day = 0;
rtc_day_carry = true;
}
}
}
}
}
}
Update to v095r08 release. byuu says: Changelog: - added preliminary WASAPI driver (it's really terrible, though. Patches most welcome.) - all of processor/ updated to auto fn() -> ret syntax - all of gb/ updated to auto fn() -> ret syntax If you want to test the WASAPI driver, then edit ui-tomoko/GNUmakefile, and replace audio.xaudio2 with audio.wasapi Note that the two drivers are incompatible and cannot co-exist (yet. We can probably make it work in the future.) All that's left for the auto fn() -> ret syntax is the NES core and the balanced/performance SNES components. This is kind of a big deal because this syntax change causes diffs between WIPs to go crazy. So the sooner we get this done and out of the way, the better. It's also nice from a consistency standpoint, of course.
2015-11-21 07:36:48 +00:00
auto Cartridge::MBC3::mmio_read(uint16 addr) -> uint8 {
Update to v084r06 release. byuu says: Changelog: - fixed sprite tile masking for 8x16 mode (fixes Zelda: DX sprites) - HuC1 flag sets RAM writable, not RAM enable (fixes Pokemon Card) - removed within<> template, didn't turn out to be all that useful I would be almost certain no games would break by allowing reads when it is disabled, no game would rely on that behavior. I prefer to be overly restrictive. Better to not allow valid behavior than to allow invalid behavior. The latter is what gives us a dozen broken SNES translations.
2011-12-26 10:49:48 +00:00
if((addr & 0xc000) == 0x0000) { //$0000-3fff
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
return cartridge.rom_read(addr);
}
Update to v084r06 release. byuu says: Changelog: - fixed sprite tile masking for 8x16 mode (fixes Zelda: DX sprites) - HuC1 flag sets RAM writable, not RAM enable (fixes Pokemon Card) - removed within<> template, didn't turn out to be all that useful I would be almost certain no games would break by allowing reads when it is disabled, no game would rely on that behavior. I prefer to be overly restrictive. Better to not allow valid behavior than to allow invalid behavior. The latter is what gives us a dozen broken SNES translations.
2011-12-26 10:49:48 +00:00
if((addr & 0xc000) == 0x4000) { //$4000-7fff
Update to release v000r10. byuu says: Changelog: - fixed LYC interrupt at LY=0 (fixes Makai Toushi SaGa) - fixed MBC3 ROM bank mapping (fixes Harvest Moon GBC) - added Super Game Boy MLT_REQ support to JOYP, needed for ICD2-R emulation - temporarily changed System::run() to execute only four cycles before exiting for bsnes, will make two versions later - uses actual boot ROMs, has DMG+SGB1 for now. Need SGB2, don't care about CGB. Defaults to SGB1, no way to select just yet. DMG 4-second wait is annoying. Does not force games to act like SGB on bgameboy itself, because that has no ICD2 and fails the required MLT_REQ check
2011-01-06 10:16:07 +00:00
return cartridge.rom_read((rom_select << 14) | (addr & 0x3fff));
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
}
Update to v084r06 release. byuu says: Changelog: - fixed sprite tile masking for 8x16 mode (fixes Zelda: DX sprites) - HuC1 flag sets RAM writable, not RAM enable (fixes Pokemon Card) - removed within<> template, didn't turn out to be all that useful I would be almost certain no games would break by allowing reads when it is disabled, no game would rely on that behavior. I prefer to be overly restrictive. Better to not allow valid behavior than to allow invalid behavior. The latter is what gives us a dozen broken SNES translations.
2011-12-26 10:49:48 +00:00
if((addr & 0xe000) == 0xa000) { //$a000-bfff
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
if(ram_enable) {
if(ram_select >= 0x00 && ram_select <= 0x03) {
return cartridge.ram_read((ram_select << 13) | (addr & 0x1fff));
}
if(ram_select == 0x08) return rtc_latch_second;
if(ram_select == 0x09) return rtc_latch_minute;
if(ram_select == 0x0a) return rtc_latch_hour;
if(ram_select == 0x0b) return rtc_latch_day;
if(ram_select == 0x0c) return (rtc_latch_day_carry << 7) | (rtc_latch_day >> 8);
}
return 0x00;
}
return 0x00;
}
Update to v095r08 release. byuu says: Changelog: - added preliminary WASAPI driver (it's really terrible, though. Patches most welcome.) - all of processor/ updated to auto fn() -> ret syntax - all of gb/ updated to auto fn() -> ret syntax If you want to test the WASAPI driver, then edit ui-tomoko/GNUmakefile, and replace audio.xaudio2 with audio.wasapi Note that the two drivers are incompatible and cannot co-exist (yet. We can probably make it work in the future.) All that's left for the auto fn() -> ret syntax is the NES core and the balanced/performance SNES components. This is kind of a big deal because this syntax change causes diffs between WIPs to go crazy. So the sooner we get this done and out of the way, the better. It's also nice from a consistency standpoint, of course.
2015-11-21 07:36:48 +00:00
auto Cartridge::MBC3::mmio_write(uint16 addr, uint8 data) -> void {
Update to v084r06 release. byuu says: Changelog: - fixed sprite tile masking for 8x16 mode (fixes Zelda: DX sprites) - HuC1 flag sets RAM writable, not RAM enable (fixes Pokemon Card) - removed within<> template, didn't turn out to be all that useful I would be almost certain no games would break by allowing reads when it is disabled, no game would rely on that behavior. I prefer to be overly restrictive. Better to not allow valid behavior than to allow invalid behavior. The latter is what gives us a dozen broken SNES translations.
2011-12-26 10:49:48 +00:00
if((addr & 0xe000) == 0x0000) { //$0000-1fff
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
ram_enable = (data & 0x0f) == 0x0a;
return;
}
Update to v084r06 release. byuu says: Changelog: - fixed sprite tile masking for 8x16 mode (fixes Zelda: DX sprites) - HuC1 flag sets RAM writable, not RAM enable (fixes Pokemon Card) - removed within<> template, didn't turn out to be all that useful I would be almost certain no games would break by allowing reads when it is disabled, no game would rely on that behavior. I prefer to be overly restrictive. Better to not allow valid behavior than to allow invalid behavior. The latter is what gives us a dozen broken SNES translations.
2011-12-26 10:49:48 +00:00
if((addr & 0xe000) == 0x2000) { //$2000-3fff
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
rom_select = (data & 0x7f) + ((data & 0x7f) == 0);
return;
}
Update to v084r06 release. byuu says: Changelog: - fixed sprite tile masking for 8x16 mode (fixes Zelda: DX sprites) - HuC1 flag sets RAM writable, not RAM enable (fixes Pokemon Card) - removed within<> template, didn't turn out to be all that useful I would be almost certain no games would break by allowing reads when it is disabled, no game would rely on that behavior. I prefer to be overly restrictive. Better to not allow valid behavior than to allow invalid behavior. The latter is what gives us a dozen broken SNES translations.
2011-12-26 10:49:48 +00:00
if((addr & 0xe000) == 0x4000) { //$4000-5fff
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
ram_select = data;
return;
}
Update to v084r06 release. byuu says: Changelog: - fixed sprite tile masking for 8x16 mode (fixes Zelda: DX sprites) - HuC1 flag sets RAM writable, not RAM enable (fixes Pokemon Card) - removed within<> template, didn't turn out to be all that useful I would be almost certain no games would break by allowing reads when it is disabled, no game would rely on that behavior. I prefer to be overly restrictive. Better to not allow valid behavior than to allow invalid behavior. The latter is what gives us a dozen broken SNES translations.
2011-12-26 10:49:48 +00:00
if((addr & 0xe000) == 0x6000) { //$6000-7fff
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
if(rtc_latch == 0 && data == 1) {
rtc_latch_second = rtc_second;
rtc_latch_minute = rtc_minute;
rtc_latch_hour = rtc_hour;
rtc_latch_day = rtc_day;
rtc_latch_day_carry = rtc_day_carry;
}
rtc_latch = data;
return;
}
Update to v084r06 release. byuu says: Changelog: - fixed sprite tile masking for 8x16 mode (fixes Zelda: DX sprites) - HuC1 flag sets RAM writable, not RAM enable (fixes Pokemon Card) - removed within<> template, didn't turn out to be all that useful I would be almost certain no games would break by allowing reads when it is disabled, no game would rely on that behavior. I prefer to be overly restrictive. Better to not allow valid behavior than to allow invalid behavior. The latter is what gives us a dozen broken SNES translations.
2011-12-26 10:49:48 +00:00
if((addr & 0xe000) == 0xa000) { //$a000-bfff
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
if(ram_enable) {
if(ram_select >= 0x00 && ram_select <= 0x03) {
cartridge.ram_write((ram_select << 13) | (addr & 0x1fff), data);
} else if(ram_select == 0x08) {
if(data >= 60) data = 0;
rtc_second = data;
} else if(ram_select == 0x09) {
if(data >= 60) data = 0;
rtc_minute = data;
} else if(ram_select == 0x0a) {
if(data >= 24) data = 0;
rtc_hour = data;
} else if(ram_select == 0x0b) {
rtc_day = (rtc_day & 0x0100) | data;
} else if(ram_select == 0x0c) {
rtc_day = ((data & 1) << 8) | (rtc_day & 0xff);
rtc_halt = data & 0x40;
rtc_day_carry = data & 0x80;
}
}
return;
}
}
Update to v095r08 release. byuu says: Changelog: - added preliminary WASAPI driver (it's really terrible, though. Patches most welcome.) - all of processor/ updated to auto fn() -> ret syntax - all of gb/ updated to auto fn() -> ret syntax If you want to test the WASAPI driver, then edit ui-tomoko/GNUmakefile, and replace audio.xaudio2 with audio.wasapi Note that the two drivers are incompatible and cannot co-exist (yet. We can probably make it work in the future.) All that's left for the auto fn() -> ret syntax is the NES core and the balanced/performance SNES components. This is kind of a big deal because this syntax change causes diffs between WIPs to go crazy. So the sooner we get this done and out of the way, the better. It's also nice from a consistency standpoint, of course.
2015-11-21 07:36:48 +00:00
auto Cartridge::MBC3::power() -> void {
Update to release v000r08. byuu says: Changelog: - rewrote sprite rendering, grabs first ten sprites, draws them in revere order of a: X-index, b: OAM appearance order - simplified tile decoding to use less variables - added MBC3 emulation (for now, RTC is always enabled) - STOP can be broken via joypad IF, this may not be correct though (it may trigger even without P10-13 being modified) - cleaned up all MBC emulation to use masks instead of ranges - MBC2 uses 512-byte table now, ignores high 4-bits. Easier this way I guess - tools menu temporarily has a console tracer enable option - some other stuff No real visible improvements :(
2011-01-04 10:42:27 +00:00
ram_enable = false;
rom_select = 0x01;
ram_select = 0x00;
rtc_latch = 0;
rtc_halt = true;
rtc_second = 0;
rtc_minute = 0;
rtc_hour = 0;
rtc_day = 0;
rtc_day_carry = false;
rtc_latch_second = 0;
rtc_latch_minute = 0;
rtc_latch_hour = 0;
rtc_latch_day = 0;
rtc_latch_day_carry = false;
}