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Index > Compiler Internals > VPMOVSXDQ syntax?

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bitRAKE



Joined: 21 Jul 2003
Posts: 3024
Location: vpcmipstrm
bitRAKE
I've looked through the AVS2/AVS ... includes, but can't figure out the intended syntax for this instruction. I've tried a number of possiblities:
Code:

vpmovsxdq ymm0,:16 [mem]
vpmovsxdq ymm0,:32 [mem]

vpmovsxdq ymm0,dqword [mem]
vpmovsxdq ymm0,yword [mem]

vpmovsxdq ymm0,dqword ptr [mem]
vpmovsxdq ymm0, ptr [mem]    
I could only get it to work by removing all type information from the memory definition and the instruction. But it would be nice to know how to override this one.

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Post 10 Feb 2020, 13:04
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bitRAKE



Joined: 21 Jul 2003
Posts: 3024
Location: vpcmipstrm
bitRAKE
DQWORD does work. Embarassed

Thought for sure that I'd tried that.

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Post 10 Feb 2020, 13:08
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 7782
Location: Kraków, Poland
Tomasz Grysztar
DQWORD also has a synonym XWORD. Please note the symmetry:
Code:
VPMOVSXDQ ymm1, xmm2
VPMOVSXDQ ymm1, xword [mem]    
Post 10 Feb 2020, 13:36
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