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Index > Compiler Internals > VUNPCKHPS and LPS instructions

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TrDr.Charlie



Joined: 07 Dec 2010
Posts: 11
TrDr.Charlie
Hello all,

instructions VUNPCKHPS(LPS) [ VEX-Encoded opcode 0F 14 (15) ] are in 253667-037US described like VEX.128 and VEX.256 versions.
Too in 319433-011 in Opcode Table is 'Vx,Hx,Wx'.

Fasm can assembled only VEX.128 version with syntax:

vunpcklps(hps) xmm0, xmm0, qword [rax]

It is OK?

When I replace in TABLES.INC label 'avx_instruction' with 'avx_ps_instruction'
for this two instructions Fasm assemble VEX.128 and VEX.256 with this
syntax:

vunpcklps(hps) xmm0, xmm0, dqword [rax] and
vunpcklps(hps) ymm0, ymm0, qqword [rax]

It is now OK?

Many Tks!
Post 23 Oct 2011, 13:46
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