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dac write index register is r/w - CR1D access fix (Volker Ruppert) 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@978 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-06-26 16:13:19 +00:00
parent e6eccb38eb
commit ae184e4ab7
1 changed files with 6 additions and 2 deletions
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8
hw/cirrus_vga.c
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@ -1492,6 +1492,7 @@ cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
case 0x1a: // Miscellaneous Control
case 0x1b: // Extended Display Control
case 0x1c: // Sync Adjust and Genlock
case 0x1d: // Overlay Extended Control
s->cr[reg_index] = reg_value;
#ifdef DEBUG_CIRRUS
printf("cirrus: handled outport cr_index %02x, cr_value %02x\n",
@ -1503,7 +1504,6 @@ cirrus_hook_write_cr(CirrusVGAState * s, unsigned reg_index, int reg_value)
case 0x26: // Attribute Controller Index Readback (R)
case 0x27: // Part ID (R)
break;
case 0x1d: // Overlay Extended Control
case 0x25: // Part Status
default:
#ifdef DEBUG_CIRRUS
@ -2440,7 +2440,11 @@ static uint32_t vga_ioport_read(void *opaque, uint32_t addr)
case 0x3c7:
val = s->dac_state;
break;
case 0x3c9:
case 0x3c8:
val = s->dac_write_index;
s->cirrus_hidden_dac_lockindex = 0;
break;
case 0x3c9:
if (cirrus_hook_read_palette(s, &val))
break;
val = s->palette[s->dac_read_index * 3 + s->dac_sub_index];