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Merge pull request #102 from negativeExponent/mesenx
add mappers to mesen-x
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| #pragma once | ||
| #include "stdafx.h" | ||
| #include "BaseMapper.h" | ||
|
|
||
| class Bmc830752C : public BaseMapper | ||
| { | ||
| private: | ||
| uint8_t _regs[2]; | ||
|
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| protected: | ||
| uint16_t GetPRGPageSize() override { return 0x4000; } | ||
| uint16_t GetCHRPageSize() override { return 0x2000; } | ||
|
|
||
| void InitMapper() override | ||
| { | ||
| _regs[0] = _regs[1] = 0; | ||
| UpdateState(); | ||
| } | ||
|
|
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| void StreamState(bool saving) override | ||
| { | ||
| BaseMapper::StreamState(saving); | ||
| Stream(_regs[0], _regs[1]); | ||
| } | ||
|
|
||
| void UpdateState() | ||
| { | ||
| uint8_t bank = (_regs[1] & 0x0F) << 3; | ||
| SelectPRGPage(0, bank | (_regs[0] & 0x07)); | ||
| SelectPRGPage(1, bank | 0x07); | ||
|
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| SelectCHRPage(0, 0); | ||
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| SetMirroringType((_regs[1] & 0x60) ? MirroringType::Horizontal : MirroringType::Vertical); | ||
| } | ||
|
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| void WriteRegister(uint16_t addr, uint8_t value) override | ||
| { | ||
| if ((addr >= 0xA000) && (addr < 0xC000)) { | ||
| _regs[1] = value; | ||
| } else { | ||
| _regs[0] = value; | ||
| } | ||
|
|
||
| UpdateState(); | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| #pragma once | ||
| #include "MMC1.h" | ||
|
|
||
| // JY012005 - 1998 Super HiK 8-in-1 (JY-021B) multicart. | ||
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| class MMC1_404 : public MMC1 | ||
| { | ||
| private: | ||
| uint8_t _outerPrgBank; | ||
| uint8_t _outerChrBank; | ||
| uint8_t _prgMask; | ||
| uint8_t _reg; | ||
|
|
||
| protected: | ||
| void InitMapper() override | ||
| { | ||
| AddRegisterRange(0x6000, 0x7FFF, MemoryOperation::Write); | ||
| MMC1::InitMapper(); | ||
| } | ||
|
|
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| void Reset(bool softReset) override | ||
| { | ||
| MMC1::Reset(softReset); | ||
|
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| _outerPrgBank = 0; | ||
| _outerChrBank = 0; | ||
| _prgMask = 0x0F; | ||
| _reg = 0; | ||
|
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| UpdateState(); | ||
| } | ||
|
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| void StreamState(bool saving) override | ||
| { | ||
| MMC1::StreamState(saving); | ||
| Stream(_outerPrgBank, _outerChrBank, _prgMask, _reg); | ||
| } | ||
|
|
||
| void SelectCHRPage(uint16_t slot, uint16_t page, ChrMemoryType memoryType) override | ||
| { | ||
| MMC1::SelectCHRPage(slot, _outerChrBank | (page & 0x1F), memoryType); | ||
| } | ||
|
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| void SelectPRGPage(uint16_t slot, uint16_t page, PrgMemoryType memoryType) override | ||
| { | ||
| MMC1::SelectPRGPage(slot, _outerPrgBank | (page & _prgMask), memoryType); | ||
| } | ||
|
|
||
| void WriteRegister(uint16_t addr, uint8_t value) override | ||
| { | ||
| if(addr < 0x8000) { | ||
| if (!(_reg & 0x80)) { | ||
| _reg = value; | ||
| _prgMask = (_reg & 0x40) ? 0x07 : 0x0F; | ||
| _outerPrgBank = ((_reg & 0x0F) << 3) & ~_prgMask; | ||
| _outerChrBank = ((_reg & 0x0F) << 5); | ||
| UpdateState(); | ||
| } | ||
| } else { | ||
| MMC1::WriteRegister(addr, value); | ||
| } | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| #pragma once | ||
| #include "stdafx.h" | ||
| #include "MMC3.h" | ||
|
|
||
| class MMC3_399 : public MMC3 | ||
| { | ||
| private: | ||
| uint8_t _regs[4]; | ||
|
|
||
| protected: | ||
| virtual uint16_t GetPRGPageSize() override { return 0x2000; } | ||
| virtual uint16_t GetCHRPageSize() override { return 0x1000; } | ||
|
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| virtual void InitMapper() override | ||
| { | ||
| _regs[0] = _regs[2] = 0; | ||
| _regs[1] = _regs[3] = 1; | ||
|
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| MMC3::InitMapper(); | ||
| } | ||
|
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| virtual void StreamState(bool saving) override | ||
| { | ||
| MMC3::StreamState(saving); | ||
| Stream(_regs[0], _regs[1], _regs[2], _regs[3]); | ||
| } | ||
|
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| void UpdatePrgMapping() override | ||
| { | ||
| SelectPRGPage(0, 0); | ||
| SelectPRGPage(1, _regs[0]); | ||
| SelectPRGPage(2, _regs[1]); | ||
| SelectPRGPage(3, -1); | ||
| } | ||
|
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| void UpdateChrMapping() override | ||
| { | ||
| SelectCHRPage(0, _regs[2]); | ||
| SelectCHRPage(1, _regs[3]); | ||
| } | ||
|
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| void WriteRegister(uint16_t addr, uint8_t value) override | ||
| { | ||
| if (addr < 0xA000) { | ||
| if (addr & 1) { | ||
| _regs[0 | (value >> 7)] = value; | ||
| } else { | ||
| _regs[2 | (value >> 7)] = value; | ||
| } | ||
| UpdateState(); | ||
| } else { | ||
| MMC3::WriteRegister(addr, value); | ||
| } | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| #pragma once | ||
| #include "stdafx.h" | ||
| #include "MMC3_126.h" | ||
|
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| class MMC3_516 : public MMC3 | ||
| { | ||
| private: | ||
| uint8_t _outerReg; | ||
|
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||
| protected: | ||
| void InitMapper() override | ||
| { | ||
| _outerReg = 0; | ||
| MMC3::InitMapper(); | ||
| } | ||
|
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| void StreamState(bool saving) override | ||
| { | ||
| MMC3::StreamState(saving); | ||
| Stream(_outerReg); | ||
| } | ||
|
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| void SelectCHRPage(uint16_t slot, uint16_t page, ChrMemoryType memoryType = ChrMemoryType::Default) override | ||
| { | ||
| MMC3::SelectCHRPage(slot, ((_outerReg << 5) & 0x180) | (page & 0x7F), memoryType); | ||
| } | ||
|
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| void SelectPRGPage(uint16_t slot, uint16_t page, PrgMemoryType memoryType = PrgMemoryType::PrgRom) override | ||
| { | ||
| MMC3::SelectPRGPage(slot, ((_outerReg << 4) & 0x30) | (page & 0x0F), memoryType); | ||
| } | ||
|
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| void WriteRegister(uint16_t addr, uint8_t value) override | ||
| { | ||
| if (addr & 0x10) { | ||
| _outerReg = addr & 0x0F; | ||
| } | ||
| MMC3::WriteRegister(addr, value); | ||
| } | ||
| }; |
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