GPU: Allow DMAs in Mode 1

Exact behaviour is still unknown, but it works on console (Nicolas Noble's torus demo).
2024-07-02 14:55:22 +10:00 · 2024-07-02 14:55:22 +10:00 · aabe39d0f8
parent fbdeea7889
commit aabe39d0f8
1 changed files with 4 additions and 1 deletions
--- a/src/core/gpu.h
+++ b/src/core/gpu.h
@ -116,7 +116,10 @@ public:
  // DMA access
  void DMARead(u32* words, u32 word_count);

-  ALWAYS_INLINE bool BeginDMAWrite() const { return (m_GPUSTAT.dma_direction == DMADirection::CPUtoGP0); }
+  ALWAYS_INLINE bool BeginDMAWrite() const
+  {
+    return (m_GPUSTAT.dma_direction == DMADirection::CPUtoGP0 || m_GPUSTAT.dma_direction == DMADirection::FIFO);
+  }
  ALWAYS_INLINE void DMAWrite(u32 address, u32 value)
  {
    m_fifo.Push((ZeroExtend64(address) << 32) | ZeroExtend64(value));