static
void wy700_update (cga_t *wy)
{
unsigned char ctl;
ctl = wy->reg[WY700_CONTROL];
if (ctl & 0x08) {
switch (ctl & 0xf0) {
case 0xc0:
wy700_update_1280x800 (wy);
break;
case 0xa0:
wy700_update_1280x400 (wy);
break;
case 0x80:
wy700_update_640x400 (wy);
break;
default:
fprintf (stderr, "WY700: unknown mode (%02X)\n", ctl);
break;
}
return;
}
cga_update (wy);
}
static
void m24_update (cga_t *m24)
{
unsigned char mode, spec;
mode = m24->reg[CGA_MODE];
spec = m24->reg[M24_SPECIAL];
if (mode & CGA_MODE_G320) {
if (mode & CGA_MODE_G640) {
if (spec & M24_SPECIAL_400) {
m24_update_640_400 (m24);
return;
}
}
}
cga_update (m24);
}
