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[Qemu-devel] [Bug 588748] Re: QEMU fails to boot DR DOS Plus since 0.6.1


From: Roy Tam
Subject: [Qemu-devel] [Bug 588748] Re: QEMU fails to boot DR DOS Plus since 0.6.1
Date: Fri, 04 Jun 2010 01:09:51 -0000

> Can you add some debugging to see what IER is being set to?

With DEBUG_SERIAL defined, serial logs:
serial: event 2
serial: write addr=0x01 val=0x02
serial: read addr=0x01 val=0x02
serial: read addr=0x02 val=0x02
serial: write addr=0x01 val=0x00
serial: write addr=0x03 val=0x80
serial: write addr=0x00 val=0x0c
serial: write addr=0x01 val=0x00
serial: write addr=0x03 val=0x03
serial: write addr=0x04 val=0x0b
serial: read addr=0x05 val=0x60
serial: read addr=0x06 val=0xb0
serial: read addr=0x00 val=0x00
serial: write addr=0x01 val=0x0f
serial: read addr=0x02 val=0x02
serial: read addr=0x02 val=0x01
(stalls here)

-- 
QEMU fails to boot DR DOS Plus since 0.6.1
https://bugs.launchpad.net/bugs/588748
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Status in QEMU: In Progress

Bug description:
The commit in r1049 (serial interrupt fix (Hampa Hug)) prevents booting Digital 
Research DOS Plus.





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