[Core/CD] improved accuracy of CDC DMA to PRG-RAM write-protected area (verified on real hardware, cf. Krikzz's mcd-verificator)

2024-01-22 00:34:24 +01:00 · 2024-01-22 00:34:24 +01:00 · 2c1a2d0def
parent da8e4e547a
commit 2c1a2d0def
1 changed files with 0 additions and 6 deletions
--- a/core/cd_hw/scd.c
+++ b/core/cd_hw/scd.c
@ -133,12 +133,6 @@ void prg_ram_dma_w(unsigned int length)
  /* update DMA source address */
  cdc.dac.w += (words << 1);

-  /* check PRG-RAM write protected area */
-  if (dst_index < (scd.regs[0x02>>1].byte.h << 9))
-  {
-    return;
-  }
-
  /* DMA transfer */
  while (words--)
  {