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Alternate instruction encodings are not supported #239

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joeleong opened this issue Jul 12, 2017 · 1 comment

joeleong commented Jul 12, 2017

failing to encode alternate instruction encodings, for example:

xorl.s %r9d, %r9d ; 45 33 c9

more examples:
https://github.com/facebookexperimental/binutils/blob/master/gas/testsuite/gas/i386/ilp32/x86-64-opts-intel.d

see the direction bit here:
http://www.c-jump.com/CIS77/CPU/x86/lecture.html#X77_0050_add_opcode

thanks to stoke-developers for helping me track it down and providing the links above

Member

stefanheule commented Aug 25, 2017

We fixed this in #240.

stefanheule closed this as completed

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