diff options
author | Raphaël Zumer <rzumer@tebako.net> | 2019-12-08 17:56:22 -0500 |
---|---|---|
committer | Raphaël Zumer <rzumer@tebako.net> | 2019-12-08 21:20:01 -0500 |
commit | 62b9f51e2329507d5e47b4239259067b5fb66240 (patch) | |
tree | 57c603ea140850710ff8681bee300e5c47611512 /src/NDS.cpp | |
parent | 48a8a25548a9aa0ed73e4d0cb2d30471326481af (diff) |
Handle GBA cartridge SRAM writes
Diffstat (limited to 'src/NDS.cpp')
-rw-r--r-- | src/NDS.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/NDS.cpp b/src/NDS.cpp index da36bdc..fe66814 100644 --- a/src/NDS.cpp +++ b/src/NDS.cpp @@ -1802,6 +1802,14 @@ void ARM9Write8(u32 addr, u8 val) case 0x07000000: // checkme return; + + case 0x0A000000: + if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write + if (GBACart::CartInserted) + { + GBACart_SRAM::Write8(addr & (GBACart_SRAM::SRAMLength-1), val); + } + return; } printf("unknown arm9 write8 %08X %02X\n", addr, val); @@ -1845,6 +1853,14 @@ void ARM9Write16(u32 addr, u16 val) if (!(PowerControl9 & ((addr & 0x400) ? (1<<9) : (1<<1)))) return; *(u16*)&GPU::OAM[addr & 0x7FF] = val; return; + + case 0x0A000000: + if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write + if (GBACart::CartInserted) + { + GBACart_SRAM::Write16(addr & (GBACart_SRAM::SRAMLength-1), val); + } + return; } //printf("unknown arm9 write16 %08X %04X\n", addr, val); @@ -1888,6 +1904,14 @@ void ARM9Write32(u32 addr, u32 val) if (!(PowerControl9 & ((addr & 0x400) ? (1<<9) : (1<<1)))) return; *(u32*)&GPU::OAM[addr & 0x7FF] = val; return; + + case 0x0A000000: + if (ExMemCnt[0] & (1<<7)) return; // deselected CPU, skip the write + if (GBACart::CartInserted) + { + GBACart_SRAM::Write32(addr & (GBACart_SRAM::SRAMLength-1), val); + } + return; } printf("unknown arm9 write32 %08X %08X | %08X\n", addr, val, ARM9->R[15]); @@ -2152,6 +2176,14 @@ void ARM7Write8(u32 addr, u8 val) case 0x06800000: GPU::WriteVRAM_ARM7<u8>(addr, val); return; + + case 0x0A000000: + if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write + if (GBACart::CartInserted) + { + GBACart_SRAM::Write8(addr & (GBACart_SRAM::SRAMLength-1), val); + } + return; } printf("unknown arm7 write8 %08X %02X @ %08X\n", addr, val, ARM7->R[15]); @@ -2198,6 +2230,14 @@ void ARM7Write16(u32 addr, u16 val) case 0x06800000: GPU::WriteVRAM_ARM7<u16>(addr, val); return; + + case 0x0A000000: + if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write + if (GBACart::CartInserted) + { + GBACart_SRAM::Write16(addr & (GBACart_SRAM::SRAMLength-1), val); + } + return; } //printf("unknown arm7 write16 %08X %04X @ %08X\n", addr, val, ARM7->R[15]); @@ -2245,6 +2285,14 @@ void ARM7Write32(u32 addr, u32 val) case 0x06800000: GPU::WriteVRAM_ARM7<u32>(addr, val); return; + + case 0x0A000000: + if (!(ExMemCnt[0] & (1<<7))) return; // deselected CPU, skip the write + if (GBACart::CartInserted) + { + GBACart_SRAM::Write32(addr & (GBACart_SRAM::SRAMLength-1), val); + } + return; } //printf("unknown arm7 write32 %08X %08X @ %08X\n", addr, val, ARM7->R[15]); |