diff options
| author | Arisotura <thetotalworm@gmail.com> | 2022-04-10 02:15:49 +0200 |
|---|---|---|
| committer | Arisotura <thetotalworm@gmail.com> | 2022-04-10 02:15:49 +0200 |
| commit | b572d8cd70cebf5a4866ff1d985c95e116f0d035 (patch) | |
| tree | 268c25bcb0c0139b8d02687003ec47754de5dfba /src/DSi_NDMA.cpp | |
| parent | 0feed13cc4bb9538f921d2c7ccb3aefb7fe0ef51 (diff) | |
add support for GXFIFO NDMA
Diffstat (limited to 'src/DSi_NDMA.cpp')
| -rw-r--r-- | src/DSi_NDMA.cpp | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/src/DSi_NDMA.cpp b/src/DSi_NDMA.cpp index 4f404c2..3c61e67 100644 --- a/src/DSi_NDMA.cpp +++ b/src/DSi_NDMA.cpp @@ -123,10 +123,17 @@ void DSi_NDMA::WriteCnt(u32 val) if ((StartMode & 0x1F) == 0x10) Start(); + else if (StartMode == 0x0A) + GPU3D::CheckFIFODMA(); - if (StartMode != 0x10 && StartMode != 0x30 && - StartMode != 0x04 && StartMode != 0x06 && StartMode != 0x07 && StartMode != 0x08 && StartMode != 0x09 && StartMode != 0x0B && - StartMode != 0x24 && StartMode != 0x26 && StartMode != 0x28 && StartMode != 0x29 && StartMode != 0x2A && StartMode != 0x2B) + // TODO: unsupported start modes: + // * timers (00-03) + // * camera (ARM9 0B) + // * microphone (ARM7 0C) + // * NDS-wifi?? (ARM7 07, likely not working) + + if (StartMode <= 0x03 || StartMode == 0x05 || (StartMode >= 0x0B && StartMode <= 0x0F) || + (StartMode >= 0x20 && StartMode <= 0x23) || StartMode == 0x25 || StartMode == 0x27 || (StartMode >= 0x2C && StartMode <= 0x2F)) printf("UNIMPLEMENTED ARM%d NDMA%d START MODE %02X, %08X->%08X LEN=%d BLK=%d CNT=%08X\n", CPU?7:9, Num, StartMode, SrcAddr, DstAddr, TotalLength, BlockLength, Cnt); } @@ -143,8 +150,12 @@ void DSi_NDMA::Start() RemCount = 0x1000000; } - // TODO: how does GXFIFO DMA work with all the block shito? - IterCount = RemCount; + // CHECKME: this is assumed to work the same as the old DMA version + // also not really certain how this interacts with the block subdivision system here + if (StartMode == 0x0A && RemCount > 112) + IterCount = 112; + else + IterCount = RemCount; if (((StartMode & 0x1F) != 0x10) && !(Cnt & (1<<29))) { |