Bugs item #2887108, was opened at 2009-10-27 15:02
Message generated for change (Comment added) made by cyrillos
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Category: Assembler
Group: None
Status: Open
Resolution: None
Priority: 7
Private: No
Submitted By: Jasper Neumann (jasper_neumann)
Assigned to: Nobody/Anonymous (nobody)
Summary: imul reg,reg,imm32 defective
Initial Comment:
Commands like
imul eax,eax,0x12340001
produce wrong code (imul reg,reg,imm8). It seems that the upper 16 bits are not analyzed for op code selection.
Sample, all imul produce wrong code; b.asm:
===
bits 32
global test
test:
imul eax,eax,65537
imul eax,eax,0x00010001
imul eax,eax,0x1234007f
imul eax,eax,0xfedcff80
ret
===
Command line: nasm -Ox -t -f rdf -o b.rdf b.asm
BTW: The variant "imul reg,mem,const" is OK.
This applies to at least the versions 2.08rc1 and 2.07.
----------------------------------------------------------------------
Comment By: Cyrill Gorcunov (cyrillos)
Date: 2009-10-30 19:47
Message:
Hmm, this is due to -Ox, investigating.... Thanks!
----------------------------------------------------------------------
You can respond by visiting:
https://sourceforge.net/tracker/?func=detail&atid=106208&aid=2887108&group_id=6208------------------------------------------------------------------------------
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