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pc_vga.cpp: fix doom (nw)

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This commit is contained in:
Melissa Goad 2017-12-20 16:37:12 -06:00
parent 818162a152
commit d89ef19e41
1 changed files with 1 additions and 1 deletions
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src/devices/video/pc_vga.cpp
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@ -1489,7 +1489,7 @@ void vga_device::crtc_reg_write(uint8_t index, uint8_t data)
break;
case 0x0c:
case 0x0d:
//if(machine().first_screen()->vpos() < (vga.crtc.vert_retrace_start)) break;
if(machine().first_screen()->vpos() < (vga.crtc.vert_retrace_start)) break;
vga.crtc.start_addr_latch &= ~(0xff << (((index & 1)^1) * 8));
vga.crtc.start_addr_latch |= (data << (((index & 1)^1) * 8));
break;