diff options
| -rw-r--r-- | hw/display/vga.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/hw/display/vga.c b/hw/display/vga.c index 5dca2d1528..50ecb1ad02 100644 --- a/hw/display/vga.c +++ b/hw/display/vga.c @@ -1514,9 +1514,10 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) force_shadow = true; } + /* bits 5-6: 0 = 16-color mode, 1 = 4-color mode, 2 = 256-color mode. */ shift_control = (s->gr[VGA_GFX_MODE] >> 5) & 3; double_scan = (s->cr[VGA_CRTC_MAX_SCAN] >> 7); - if (shift_control != 1) { + if (s->cr[VGA_CRTC_MODE] & 1) { multi_scan = (((s->cr[VGA_CRTC_MAX_SCAN] & 0x1f) + 1) << double_scan) - 1; } else { |