[Nasm-bugs] [Bug 3392607] Incorrect decoding for some AVX512_VBMI2 instructions

noreply-nasm at dev.nasm.us noreply-nasm at dev.nasm.us
Tue Mar 31 14:27:20 PDT 2020


https://bugzilla.nasm.us/show_bug.cgi?id=3392607

Chang S. Bae <chang.seok.bae at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|OPEN                        |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #2 from Chang S. Bae <chang.seok.bae at intel.com> ---
When I do these tests using today's source code,

$ nasm -v
NASM version 2.15rc0 compiled on Mar 30 2020

They look to assemble correctly, although I didn't dig which point it began to
work out.

$ nasm -o vpshldv.o vpshldv.asm
$ ndisam -b64 vpshldv.o
00000000  62F2F58970C200    vpshldvw xmm0{k1}{z},xmm1,xmm2

$ nasm -o vpshldtest.o vpshldtest.asm
$ ndisasm -b64 vpshldtest.o
00000000  62F3F58970C205    vpshldw xmm0{k1}{z},xmm1,xmm2,byte 0x5
00000007  62F2F58970C200    vpshldvw xmm0{k1}{z},xmm1,xmm2

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