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upd765: reset st0 when starting a seek and fail if drive isn't ready

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This commit is contained in:
cracyc 2024-10-19 21:37:18 -05:00
parent 608314d1a4
commit 272ec75ca6
1 changed files with 14 additions and 2 deletions
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16
src/devices/machine/upd765.cpp
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@ -1615,7 +1615,13 @@ void upd765_family_device::recalibrate_start(floppy_info &fi)
fi.dir = 1;
fi.counter = recalibrate_steps;
fi.ready = get_ready(command[1] & 3);
fi.st0 = (fi.ready ? 0 : ST0_NR);
fi.st0 = command[1] & 7;
if(!fi.ready)
{
fi.st0 |= ST0_NR | ST0_FAIL;
command_end(fi, false);
return;
}
seek_continue(fi);
}
@ -1626,7 +1632,13 @@ void upd765_family_device::seek_start(floppy_info &fi)
fi.sub_state = SEEK_WAIT_STEP_TIME_DONE;
fi.dir = fi.pcn > command[2] ? 1 : 0;
fi.ready = get_ready(command[1] & 3);
fi.st0 = (fi.ready ? 0 : ST0_NR);
fi.st0 = command[1] & 7;
if(!fi.ready)
{
fi.st0 |= ST0_NR | ST0_FAIL;
command_end(fi, false);
return;
}
seek_continue(fi);
}