mov reg32, [word offset] bug

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Index > Compiler Internals > mov reg32, [word offset] bug

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Hunter

Joined: 07 Jun 2006
Posts: 41

Hunter 07 Jul 2006, 16:04

Hello, Tomasz!
For instructions:
use32
mov eax, dword [dword 0ffffh]
mov eax, dword [word 0ffffh]
mov dword [dword 0ffffh], eax
mov dword [word 0ffffh], eax

FASM generates:
A1 FF FF 00 00
A1 FF FF ; it's a bug, because prefix 67h is needed.
A3 FF FF 00 00
67 A3 FF FF

07 Jul 2006, 16:04

Tomasz Grysztar

Joined: 16 Jun 2003
Posts: 8354
Location: Kraków, Poland

Tomasz Grysztar 07 Jul 2006, 16:29

Thanks for the report, it's fixed now.

07 Jul 2006, 16:29

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