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Fix cursor start end line for non-vga card support

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1998
This commit is contained in:
Sjoerd van der Berg 2004-09-28 15:43:31 +00:00
parent 7da8b39be5
commit 6c6c6f031c
1 changed files with 12 additions and 7 deletions
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19
src/hardware/vga_other.cpp
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@ -64,24 +64,29 @@ static void write_crtc_data_other(Bitu port,Bitu val,Bitu iolen) {
if (vga.other.max_scanline ^ val) VGA_StartResize();
vga.other.max_scanline=val;
break;
vga.config.display_start=(vga.config.display_start & 0xFF00FF)| (val << 8);
case 0x0A: /* Cursor Start Register */
vga.draw.cursor.sline = val&0x1f;
vga.draw.cursor.enabled = ((val & 0x60) != 0x20);
break;
case 0x0B: /* Cursor End Register */
vga.draw.cursor.eline = val&0x1f;
break;
case 0x0C: /* Start Address High Register */
vga.config.display_start=(vga.config.display_start & 0xFF00FF)| (val << 8);
vga.config.display_start=(vga.config.display_start & 0x00FF) | (val << 8);
break;
case 0x0D: /* Start Address Low Register */
vga.config.display_start=(vga.config.display_start & 0xFFFF00)| val;
vga.config.display_start=(vga.config.display_start & 0xFF00) | val;
break;
case 0x0E: /*Cursor Location High Register */
vga.config.cursor_start&=0xff00ff;
vga.config.cursor_start&=0x00ff;
vga.config.cursor_start|=val << 8;
break;
case 0x0F: /* Cursor Location Low Register */
vga.config.cursor_start&=0xffff00;
vga.config.cursor_start&=0xff00;
vga.config.cursor_start|=val;
break;
default:
LOG_MSG("Write %X to illgal index %x",val,vga.other.index);
LOG(LOG_VGAMISC,LOG_NORMAL)("MC6845:Write %X to illegal index %x",val,vga.other.index);
}
}
static Bitu read_crtc_data_other(Bitu port,Bitu iolen) {
@ -113,7 +118,7 @@ static Bitu read_crtc_data_other(Bitu port,Bitu iolen) {
case 0x0F: /* Cursor Location Low Register */
return vga.config.cursor_start;
default:
LOG_MSG("Read from illgal index %x",vga.other.index);
LOG(LOG_VGAMISC,LOG_NORMAL)("MC6845:Read from illegal index %x",vga.other.index);
}
return (Bitu)-1;
}