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Also for RSP, oops

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This commit is contained in:
SimoneN64
2024-07-07 23:51:31 +02:00
parent 37a0cf6c77
commit 836a009e99
4 changed files with 66 additions and 78 deletions
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128
src/backend/core/RSP.cpp
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@@ -111,17 +111,75 @@ void RSP::WriteStatus(u32 value) {
CLEAR_SET(spStatus.signal7, write.clearSignal7, write.setSignal7);
}
template <> void RSP::DMA<true>() {
u32 length = spDMALen.len + 1;
length = (length + 0x7) & ~0x7;
std::array<u8, DMEM_SIZE>& src = spDMASPAddr.bank ? imem : dmem;
u32 mem_address = spDMASPAddr.address & 0xFF8;
u32 dram_address = spDMADRAMAddr.address & 0xFFFFF8;
for (u32 i = 0; i < spDMALen.count + 1; i++) {
for(u32 j = 0; j < length; j++) {
mem.mmio.rdp.WriteRDRAM<u8>(BYTE_ADDRESS(dram_address + j), src[(mem_address + j) & DMEM_DSIZE]);
}
int skip = i == spDMALen.count ? 0 : spDMALen.skip;
dram_address += (length + skip);
dram_address &= 0xFFFFF8;
mem_address += length;
mem_address &= 0xFF8;
}
lastSuccessfulSPAddr.address = mem_address;
lastSuccessfulSPAddr.bank = spDMASPAddr.bank;
lastSuccessfulDRAMAddr.address = dram_address;
spDMALen.raw = 0xFF8 | (spDMALen.skip << 20);
}
template <> void RSP::DMA<false>() {
u32 length = spDMALen.len + 1;
length = (length + 0x7) & ~0x7;
std::array<u8, DMEM_SIZE>& dst = spDMASPAddr.bank ? imem : dmem;
u32 mem_address = spDMASPAddr.address & 0xFF8;
u32 dram_address = spDMADRAMAddr.address & 0xFFFFF8;
for (u32 i = 0; i < spDMALen.count + 1; i++) {
for(u32 j = 0; j < length; j++) {
dst[(mem_address + j) & DMEM_DSIZE] = mem.mmio.rdp.ReadRDRAM<u8>(BYTE_ADDRESS(dram_address + j));
}
int skip = i == spDMALen.count ? 0 : spDMALen.skip;
dram_address += (length + skip);
dram_address &= 0xFFFFF8;
mem_address += length;
mem_address &= 0xFF8;
}
lastSuccessfulSPAddr.address = mem_address;
lastSuccessfulSPAddr.bank = spDMASPAddr.bank;
lastSuccessfulDRAMAddr.address = dram_address;
spDMALen.raw = 0xFF8 | (spDMALen.skip << 20);
}
void RSP::Write(u32 addr, u32 val) {
switch (addr) {
case 0x04040000: spDMASPAddr.raw = val & 0x1FF8; break;
case 0x04040004: spDMADRAMAddr.raw = val & 0xFFFFF8; break;
case 0x04040008: {
spDMALen.raw = val;
DMAtoRSP(mem.GetRDRAM());
DMA<false>();
} break;
case 0x0404000C: {
spDMALen.raw = val;
DMAtoRDRAM(mem.GetRDRAM());
DMA<true>();
} break;
case 0x04040010: WriteStatus(val); break;
case 0x0404001C: ReleaseSemaphore(); break;
@@ -133,70 +191,4 @@ void RSP::Write(u32 addr, u32 val) {
Util::panic("Unimplemented SP register write {:08X}, val: {:08X}", addr, val);
}
}
void RSP::DMAtoRDRAM(std::vector<u8>& rdram) {
u32 length = spDMALen.len + 1;
length = (length + 0x7) & ~0x7;
std::vector<u8>& dst = rdram;
std::array<u8, DMEM_SIZE>& src = spDMASPAddr.bank ? imem : dmem;
u32 mem_address = spDMASPAddr.address & 0xFF8;
u32 dram_address = spDMADRAMAddr.address & 0xFFFFF8;
for (u32 i = 0; i < spDMALen.count + 1; i++) {
for(u32 j = 0; j < length; j++) {
if((dram_address + j) < RDRAM_SIZE) {
dst[dram_address + j] = src[(mem_address + j) & DMEM_DSIZE];
}
}
int skip = i == spDMALen.count ? 0 : spDMALen.skip;
dram_address += (length + skip);
dram_address &= 0xFFFFF8;
mem_address += length;
mem_address &= 0xFF8;
}
lastSuccessfulSPAddr.address = mem_address;
lastSuccessfulSPAddr.bank = spDMASPAddr.bank;
lastSuccessfulDRAMAddr.address = dram_address;
spDMALen.raw = 0xFF8 | (spDMALen.skip << 20);
}
void RSP::DMAtoRSP(std::vector<u8>& rdram) {
u32 length = spDMALen.len + 1;
length = (length + 0x7) & ~0x7;
std::vector<u8>& src = rdram;
std::array<u8, DMEM_SIZE>& dst = spDMASPAddr.bank ? imem : dmem;
u32 mem_address = spDMASPAddr.address & 0xFF8;
u32 dram_address = spDMADRAMAddr.address & 0xFFFFF8;
for (u32 i = 0; i < spDMALen.count + 1; i++) {
for(u32 j = 0; j < length; j++) {
if((dram_address + j) < RDRAM_SIZE) {
dst[(mem_address + j) & DMEM_DSIZE] = src[dram_address + j];
} else {
dst[(mem_address + j) & DMEM_DSIZE] = 0;
}
}
int skip = i == spDMALen.count ? 0 : spDMALen.skip;
dram_address += (length + skip);
dram_address &= 0xFFFFF8;
mem_address += length;
mem_address &= 0xFF8;
}
lastSuccessfulSPAddr.address = mem_address;
lastSuccessfulSPAddr.bank = spDMASPAddr.bank;
lastSuccessfulDRAMAddr.address = dram_address;
spDMALen.raw = 0xFF8 | (spDMALen.skip << 20);
}
}