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* core: don't flush the serial port queue for a serial commandH. Peter Anvin2009-05-231-12/+19
| | | | | | | | | | | | | Don't flush the serial port queue when encountering a "serial" command. We don't actually want to lose data due to a repeated "serial", since it's quite likely it's exactly the same as before. Do flush the queue on hardware cleanup, however. Also fix some minor bugs, including a bunch of code in the .data segment. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* core: add file missing from previous checkin (serirq.inc)syslinux-3.81-pre11H. Peter Anvin2009-05-231-0/+184
Add the file serirq.inc missing from previous checkin. Signed-off-by: H. Peter Anvin <hpa@zytor.com>