rasm2 gives incorrect hexpairs about radare2 HOT 2 CLOSED

it fails here to

root@protostar:# rasm2 "mov al, [ebx]"
8bfb
root@protostar:# rasm2 -d "8bfb"
mov edi, ebx

from radare2.

The default assembler plugin for x86 is x86.nz which lacks support for 16bit opcodes. Im gonna implement it and commit it. But meanwhile you can use the x86.olly one:

rasm2 -a x86.olly ''mov al, cl"

'pop al' is an invalid instruction and its not handled by x86.nz

That plugin is under development and there's a testsuite aiming to check all those issues. There are several instructions that are not supported yet, but it works fine with r-egg to create programs.

Thanks for reporting

On Aug 1, 2012, at 22:36, Eric [email protected] wrote:

rasm2 "mov al, cl" gives
89ff
rasm2 "pop al" gives
ff

root@protostar:~# rasm2 "mov al, cl"
89ff

yet for some reason it seems to be able to disassemble the opcode fine
root@protostar:~# rasm2 -d "88 c8"
mov al, cl

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#6

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