Mapper 83 support
This commit is contained in:
Souryo
parent
6870dbbeb0
commit
66c4f13106
4 changed files with 166 additions and 7 deletions
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@ -478,6 +478,7 @@
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<ClInclude Include="Mapper234.h" />
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<ClInclude Include="Mapper183.h" />
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<ClInclude Include="Mapper253.h" />
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<ClInclude Include="Mapper83.h" />
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<ClInclude Include="MMC3_123.h" />
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<ClInclude Include="MMC3_126.h" />
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<ClInclude Include="MMC3_134.h" />
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@ -958,6 +958,9 @@
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<ClInclude Include="Mapper220.h">
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<Filter>Nes\Mappers\Unnamed</Filter>
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</ClInclude>
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<ClInclude Include="Mapper83.h">
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<Filter>Nes\Mappers\Unnamed</Filter>
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</ClInclude>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="stdafx.cpp">
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152
Core/Mapper83.h
Normal file
152
Core/Mapper83.h
Normal file
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@ -0,0 +1,152 @@
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#pragma once
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#include "stdafx.h"
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#include "BaseMapper.h"
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#include "CPU.h"
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#include "MemoryManager.h"
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class Mapper83 : public BaseMapper
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{
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uint8_t _regs[11];
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uint8_t _exRegs[4];
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bool _is2kBank;
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bool _isNot2kBank;
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uint8_t _mode;
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uint8_t _bank;
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uint16_t _irqCounter;
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bool _irqEnabled;
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uint8_t _resetBit;
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protected:
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virtual uint16_t GetPRGPageSize() { return 0x2000; }
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virtual uint16_t GetCHRPageSize() { return 0x400; }
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virtual bool AllowRegisterRead() { return true; }
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void InitMapper()
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{
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memset(_regs, 0, sizeof(_regs));
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memset(_exRegs, 0, sizeof(_exRegs));
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_is2kBank = false;
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_isNot2kBank = false;
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_mode = 0;
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_bank = 0;
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_irqCounter = 0;
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_irqEnabled = false;
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_resetBit = 0;
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AddRegisterRange(0x5000, 0x5000, MemoryOperation::Read);
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AddRegisterRange(0x5100, 0x5103, MemoryOperation::Any);
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RemoveRegisterRange(0x8000, 0xFFFF, MemoryOperation::Read);
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UpdateState();
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}
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void StreamState(bool saving) override
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{
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BaseMapper::StreamState(saving);
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ArrayInfo<uint8_t> regs{ _regs, 11 };
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ArrayInfo<uint8_t> exRegs{ _exRegs, 4 };
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Stream(regs, exRegs, _is2kBank, _isNot2kBank, _mode, _bank, _irqCounter, _irqEnabled, _resetBit);
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}
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void Reset(bool softReset) override
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{
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if(softReset) {
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_resetBit ^= 1;
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}
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}
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void ProcessCpuClock() override
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{
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if(_irqEnabled) {
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_irqCounter--;
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if(_irqCounter == 0) {
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_irqEnabled = false;
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_irqCounter = 0xFFFF;
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CPU::SetIRQSource(IRQSource::External);
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}
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}
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}
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void UpdateState()
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{
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switch(_mode & 0x03) {
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case 0: SetMirroringType(MirroringType::Vertical); break;
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case 1: SetMirroringType(MirroringType::Horizontal); break;
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case 2: SetMirroringType(MirroringType::ScreenAOnly); break;
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case 3: SetMirroringType(MirroringType::ScreenBOnly); break;
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}
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if(_is2kBank && !_isNot2kBank) {
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SelectChrPage2x(0, _regs[0] << 1);
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SelectChrPage2x(1, _regs[1] << 1);
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SelectChrPage2x(2, _regs[6] << 1);
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SelectChrPage2x(3, _regs[7] << 1);
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} else {
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for(int i = 0; i < 8; i++) {
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SelectCHRPage(i, _regs[i] | ((_bank & 0x30) << 4));
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}
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}
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if(_mode & 0x40) {
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SelectPrgPage2x(0, (_bank & 0x3F) << 1);
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SelectPrgPage2x(1, ((_bank & 0x30) | 0x0F) << 1);
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} else {
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SelectPRGPage(0, _regs[8]);
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SelectPRGPage(1, _regs[9]);
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SelectPRGPage(2, _regs[10]);
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SelectPRGPage(3, -1);
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}
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}
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uint8_t ReadRegister(uint16_t addr) override
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{
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if(addr == 0x5000) {
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return (MemoryManager::GetOpenBus() & 0xFC) | _resetBit;
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} else {
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return _exRegs[addr & 0x03];
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}
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}
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void WriteRegister(uint16_t addr, uint8_t value) override
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{
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if(addr < 0x8000) {
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_exRegs[addr & 0x03] = value;
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} else if(addr >= 0x8300 && addr <= 0x8302) {
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_mode &= 0xBF;
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_regs[addr - 0x8300 + 8] = value;
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UpdateState();
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} else if(addr >= 0x8310 && addr <= 0x8317) {
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_regs[addr - 0x8310] = value;
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if(addr >= 0x8312 && addr <= 0x8315) {
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_isNot2kBank = true;
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}
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UpdateState();
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} else {
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switch(addr) {
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case 0x8000: _is2kBank = true; //no break
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case 0xB000: case 0xB0FF: case 0xB1FF:
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// Dragon Ball Z Party [p1] BMC
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_bank = value;
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_mode |= 0x40;
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UpdateState();
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break;
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case 0x8100:
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_mode = value | (_mode & 0x40);
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UpdateState();
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break;
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case 0x8200:
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_irqCounter = (_irqCounter & 0xFF00) | value;
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CPU::ClearIRQSource(IRQSource::External);
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break;
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case 0x8201:
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_irqEnabled = (_mode & 0x80) == 0x80;
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_irqCounter = (_irqCounter & 0xFF) | (value << 8);
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break;
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}
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}
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}
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};
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@ -50,6 +50,7 @@
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#include "Mapper60.h"
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#include "Mapper61.h"
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#include "Mapper62.h"
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#include "Mapper83.h"
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#include "Mapper91.h"
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#include "Mapper103.h"
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#include "Mapper106.h"
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@ -192,22 +193,23 @@ Supported mappers:
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... : bad mappers
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--- : potentially bad mappers
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=== : not supported by both Nestopia & FCEUX
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??? : No known roms
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-----------------------------------------------------------------
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| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10| 11| 12| 13| 14| 15|
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| 16| 17| 18| 19|...| 21| 22| 23| 24| 25| 26| 27| 28| | | 31|
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| 32| 33| 34| 35| 36| 37| 38|---| 40| 41| 42|---| 44| 45| 46| 47|
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| 48| 49| 50| 51| 52| 53| | | 56| 57| 58|===| 60| 61| 62| 63|
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| 48| 49| 50| 51| 52| 53|???|???| 56| 57| 58|===| 60| 61| 62| 63|
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| 64| 65| 66| 67| 68| 69| 70| 71| 72| 73| 74| 75| 76| 77| 78| 79|
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| 80|===| 82| |===| 85| 86| 87| 88| 89| 90| 91| 92| 93| 94| 95|
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| 96| 97|===| 99|...|101|===|103| |105|106|107|108|===|===|===|
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|112|113|114|115| |117|118|119|120|121|===|123|===| |126|===|
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| 80|===| 82| 83|===| 85| 86| 87| 88| 89| 90| 91| 92| 93| 94| 95|
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| 96| 97|===| 99|...|101|===|103|???|105|106|107|108|===|===|===|
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|112|113|114|115| |117|118|119|120|121|===|123|===|???|126|===|
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|===|===|===|===|132|133|134|===|136|137|138|139|140|141|142|143|
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|144|145|146|147|148|149|150|151|152|153|154|155|156|157| |159|
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|144|145|146|147|148|149|150|151|152|153|154|155|156|157|???|159|
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|---|===|162|163|164|165|166|167|168|===|170|171|172|173|===|175|
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|176|177|178|179|180|---|182|183|184|185|186|187|188|189|===|191|
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|192|193|194|195|196|197| |199|200|201|202|203|204|205|206|207|
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| |209|210|211|212|213|214|215|216|217|218|219|220|221|222| |
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| |225|226|227|228|229|230|231|232|233|234|235| |===|238|===|
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|???|209|210|211|212|213|214|215|216|217|218|219|220|221|222|???|
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|???|225|226|227|228|229|230|231|232|233|234|235|???|===|238|===|
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|240|241|242|243|244|245|246|===|===|249|250|===|252|253|254|255|
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-----------------------------------------------------------------
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*/
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@ -304,6 +306,7 @@ BaseMapper* MapperFactory::GetMapperFromID(RomData &romData)
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case 79: return new Nina03_06(false);
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case 80: return new TaitoX1005(false);
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case 82: return new TaitoX1017();
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case 83: return new Mapper83();
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case 85: return new VRC7();
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case 86: return new JalecoJf13();
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case 87: return new JalecoJfxx(false);
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