Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-10-05 08:41:31 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

upd765: Don't instantly finish the RECALIBRATE command

Browse Source 
The RECALIBRATE command would instantly finish if the drive was already
at track 0. This introduces a slight delay, so that code can execute
between issuing the command and generating an interrupt. This fixes
accessing the second drive on the psi98 driver.
This commit is contained in:
Dirk Best 2017-08-18 02:01:27 +02:00
parent daab86c830
commit c86970de6c
2 changed files with 10 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/devices/machine/upd765.cpp
View File

@ -1473,13 +1473,20 @@ void upd765_family_device::seek_continue(floppy_info &fi)
break;
}
if(done) {
fi.st0 |= ST0_SE | fi.id;
command_end(fi, false);
fi.sub_state = SEEK_WAIT_DONE;
// recalibrate takes some time, even if we are already at track 0
fi.tm->adjust(attotime::from_nsec((fi.main_state == RECALIBRATE) ? 20000 : 0));
return;
}
fi.sub_state = SEEK_MOVE;
break;
}
case SEEK_WAIT_DONE:
fi.st0 |= ST0_SE | fi.id;
command_end(fi, false);
return;
}
}
}

1
src/devices/machine/upd765.h
View File

@ -223,6 +223,7 @@ protected:
SEEK_WAIT_STEP_SIGNAL_TIME_DONE,
SEEK_WAIT_STEP_TIME,
SEEK_WAIT_STEP_TIME_DONE,
SEEK_WAIT_DONE,
SEEK_DONE,
HEAD_LOAD_DONE,