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Resetting the FDC via the DOR now correctly resets each drive's HDSEL to 0, fixes booting from OS/2 Warp 3.0 install floppies.

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OBattler
2016-09-26 18:43:25 +02:00
parent bde171e81b
commit 74aa7e486d
1 changed files with 14 additions and 4 deletions
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18
src/fdc.c
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@@ -1125,7 +1125,6 @@ void fdc_callback()
paramstogo = 1; paramstogo = 1;
discint = 0; discint = 0;
disctime = 0; disctime = 0;
pclog("Sense drive status: %02X\n", fdc.res[10]);
return; return;
case 5: /*Write data*/ case 5: /*Write data*/
case 6: /*Read data*/ case 6: /*Read data*/
@@ -1204,12 +1203,23 @@ void fdc_callback()
fdc.stat = (fdc.stat & 0xf) | 0xd0; fdc.stat = (fdc.stat & 0xf) | 0xd0;
if (fdc_reset_stat) if (fdc_reset_stat)
{ {
disc_stop(4 - fdc_reset_stat); if ((4 - fdc_reset_stat) <= 1)
fdc.res[9] = 0xc0 | (4 - fdc_reset_stat) | (fdd_get_head(fdc.drive ^ fdd_swap) ? 4 : 0); {
disc_stop(4 - fdc_reset_stat);
fdd_set_head((4 - fdc_reset_stat) ^ fdd_swap, 0);
fdc.res[9] = 0xc0 | (4 - fdc_reset_stat) | (fdd_get_head((4 - fdc_reset_stat) ^ fdd_swap) ? 4 : 0);
}
else
{
fdc.res[9] = 0xc0 | (4 - fdc_reset_stat);
}
} }
else else
{ {
disc_stop(fdc.drive); if (fdc.drive <= 1)
{
disc_stop(fdc.drive);
}
fdc.res[9] = fdc.st0; fdc.res[9] = fdc.st0;
} }
fdc.res[10] = fdc.track[fdc.drive]; fdc.res[10] = fdc.track[fdc.drive];