Commit ca896ef389fc44c7a673d1bd2b94823e28da37a1
1 parent
a8c33204
cirrusfb: proper "Attribute Controller Toggle Readback" register behaviour
(Marcelo Tosatti) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4386 c046a42c-6fe2-441c-8c8c-71466251a162
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3 additions
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1 deletions
hw/cirrus_vga.c
| @@ -1626,13 +1626,15 @@ cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value) | @@ -1626,13 +1626,15 @@ cirrus_hook_read_cr(CirrusVGAState * s, unsigned reg_index, int *reg_value) | ||
| 1626 | case 0x17: // Standard VGA | 1626 | case 0x17: // Standard VGA |
| 1627 | case 0x18: // Standard VGA | 1627 | case 0x18: // Standard VGA |
| 1628 | return CIRRUS_HOOK_NOT_HANDLED; | 1628 | return CIRRUS_HOOK_NOT_HANDLED; |
| 1629 | + case 0x24: // Attribute Controller Toggle Readback (R) | ||
| 1630 | + *reg_value = (s->ar_flip_flop << 7); | ||
| 1631 | + break; | ||
| 1629 | case 0x19: // Interlace End | 1632 | case 0x19: // Interlace End |
| 1630 | case 0x1a: // Miscellaneous Control | 1633 | case 0x1a: // Miscellaneous Control |
| 1631 | case 0x1b: // Extended Display Control | 1634 | case 0x1b: // Extended Display Control |
| 1632 | case 0x1c: // Sync Adjust and Genlock | 1635 | case 0x1c: // Sync Adjust and Genlock |
| 1633 | case 0x1d: // Overlay Extended Control | 1636 | case 0x1d: // Overlay Extended Control |
| 1634 | case 0x22: // Graphics Data Latches Readback (R) | 1637 | case 0x22: // Graphics Data Latches Readback (R) |
| 1635 | - case 0x24: // Attribute Controller Toggle Readback (R) | ||
| 1636 | case 0x25: // Part Status | 1638 | case 0x25: // Part Status |
| 1637 | case 0x27: // Part ID (R) | 1639 | case 0x27: // Part ID (R) |
| 1638 | *reg_value = s->cr[reg_index]; | 1640 | *reg_value = s->cr[reg_index]; |