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Re: [Qemu-devel] [PATCH] handle multibyte NOPs
From: |
malc |
Subject: |
Re: [Qemu-devel] [PATCH] handle multibyte NOPs |
Date: |
Mon, 21 Aug 2006 03:18:59 +0400 (MSD) |
On Mon, 21 Aug 2006, Igor Kovalenko wrote:
On 8/21/06, malc <address@hidden> wrote:
On Mon, 21 Aug 2006, Igor Kovalenko wrote:
<snip>
> Right. Here is the real one with correct case labels.
Sorry, forgot to mention that atop of the hex/bin problem the code also
suffers from lack of proper 16/64 bit modrm decoding.
seems to me that 16 and 64 bit cases does not apply here
Well, quick experiment in vm86 environment suggests that i'm right at
least for 16bit case.
<moo.asm>
xor ax, ax
int 16h
db 0xf, 0x19, 5, 0xde, 0xad
db 0xf, 0x19, 5, 0xbe, 0xef
mov ah, 9
mov dx, erm
add dx, 0x100
int 21h
xor ax, ax
int 16h
ret
erm db "moo$"
</moo.asm>
nasm -o moo.com moo.asm
dosemu moo.com
64bit case should be investigated by someone who possesses 64bit OS.
--
mailto:address@hidden
- [Qemu-devel] [PATCH] handle multibyte NOPs, Igor Kovalenko, 2006/08/18
- Re: [Qemu-devel] [PATCH] handle multibyte NOPs, Paul Brook, 2006/08/18
- Re: [Qemu-devel] [PATCH] handle multibyte NOPs, Igor Kovalenko, 2006/08/20
- Re: [Qemu-devel] [PATCH] handle multibyte NOPs, malc, 2006/08/20
- Re: [Qemu-devel] [PATCH] handle multibyte NOPs, Igor Kovalenko, 2006/08/20
- Re: [Qemu-devel] [PATCH] handle multibyte NOPs, malc, 2006/08/20
- Re: [Qemu-devel] [PATCH] handle multibyte NOPs, Igor Kovalenko, 2006/08/20
- Re: [Qemu-devel] [PATCH] handle multibyte NOPs,
malc <=
- Re: [Qemu-devel] [PATCH] handle multibyte NOPs, Igor Kovalenko, 2006/08/30