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Don't allow Mystique SRCx/DMAPAD writes to reach ILOAD processing unless a

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command is actually in progress. Fixes Incoming with default Windows 98SE driver
This commit is contained in:
SarahW 2020-03-31 08:55:59 +01:00
commit b66c37c8af
1 changed files with 5 additions and 5 deletions
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10
src/vid_mga.c
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@ -1968,28 +1968,28 @@ static void mystique_accel_ctrl_write_l(uint32_t addr, uint32_t val, void *p)
case REG_SRC0:
mystique->dwgreg.src[0] = val;
if ((mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
if (mystique->busy && (mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
blit_iload_write(mystique, mystique->dwgreg.src[0], 32);
break;
case REG_SRC1:
mystique->dwgreg.src[1] = val;
if ((mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
if (mystique->busy && (mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
blit_iload_write(mystique, mystique->dwgreg.src[1], 32);
break;
case REG_SRC2:
mystique->dwgreg.src[2] = val;
if ((mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
if (mystique->busy && (mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
blit_iload_write(mystique, mystique->dwgreg.src[2], 32);
break;
case REG_SRC3:
mystique->dwgreg.src[3] = val;
if ((mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
if (mystique->busy && (mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
blit_iload_write(mystique, mystique->dwgreg.src[3], 32);
break;
case REG_DMAPAD:
if ((mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
if (mystique->busy && (mystique->dwgreg.dwgctrl_running & DWGCTRL_OPCODE_MASK) == DWGCTRL_OPCODE_ILOAD)
blit_iload_write(mystique, mystique->dwgreg.src[0], 32);
break;