diff options
Diffstat (limited to 'src/emu/video/pc_vga.c')
-rw-r--r-- | src/emu/video/pc_vga.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/src/emu/video/pc_vga.c b/src/emu/video/pc_vga.c index 87b82c35edd..4fedef6c11c 100644 --- a/src/emu/video/pc_vga.c +++ b/src/emu/video/pc_vga.c @@ -2994,19 +2994,19 @@ bit 0 Horizontal Total bit 8. Bit 8 of the Horizontal Total register (3d4h /* 3d4h index 5Eh (R/W): Extended Vertical Overflow Register (80x +) bit 0 Vertical Total bit 10. Bit 10 of the Vertical Total register (3d4h - index 6). Bits 8 and 9 are in 3d4h index 7 bit 0 and 5. - 1 Vertical Display End bit 10. Bit 10 of the Vertical Display End - register (3d4h index 12h). Bits 8 and 9 are in 3d4h index 7 bit 1 - and 6 - 2 Start Vertical Blank bit 10. Bit 10 of the Vertical Start Blanking - register (3d4h index 15h). Bit 8 is in 3d4h index 7 bit 3 and bit 9 - in 3d4h index 9 bit 5 - 4 Vertical Retrace Start bit 10. Bit 10 of the Vertical Start Retrace - register (3d4h index 10h). Bits 8 and 9 are in 3d4h index 7 bit 2 - and 7. - 6 Line Compare Position bit 10. Bit 10 of the Line Compare register - (3d4h index 18h). Bit 8 is in 3d4h index 7 bit 4 and bit 9 in 3d4h - index 9 bit 6. + index 6). Bits 8 and 9 are in 3d4h index 7 bit 0 and 5. + 1 Vertical Display End bit 10. Bit 10 of the Vertical Display End + register (3d4h index 12h). Bits 8 and 9 are in 3d4h index 7 bit 1 + and 6 + 2 Start Vertical Blank bit 10. Bit 10 of the Vertical Start Blanking + register (3d4h index 15h). Bit 8 is in 3d4h index 7 bit 3 and bit 9 + in 3d4h index 9 bit 5 + 4 Vertical Retrace Start bit 10. Bit 10 of the Vertical Start Retrace + register (3d4h index 10h). Bits 8 and 9 are in 3d4h index 7 bit 2 + and 7. + 6 Line Compare Position bit 10. Bit 10 of the Line Compare register + (3d4h index 18h). Bit 8 is in 3d4h index 7 bit 4 and bit 9 in 3d4h + index 9 bit 6. */ case 0x5e: vga.crtc.vert_total = (vga.crtc.vert_total & 0xfbff) | ((data & 0x01) << 10); |