magnus,
I think this works OK.
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include \masm32\include\masm32rt.inc
.686p
.xmm
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comment * -----------------------------------------------------
Build this template with
"CONSOLE ASSEMBLE AND LINK"
----------------------------------------------------- *
; --------------------------------------------------------
; alignment must be an immediate operand and a power of 2
; when no longer required the original address must be
; freed with either GlobalFree() or the macro "free".
; --------------------------------------------------------
aalloc MACRO pMem:REQ,bcnt:REQ,alignment:REQ
mov edx, bcnt
add edx, alignment
invoke GlobalAlloc,GMEM_FIXED or GMEM_ZEROINIT,edx
mov pMem, eax
add eax, alignment - 1
and eax, -alignment
EXITM <eax>
ENDM
.code
start:
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call main
inkey
exit
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main proc
LOCAL pMem :DWORD
LOCAL aMem :DWORD
mov aMem, aalloc(pMem,1024*1024*64,16)
movntdqa xmm0, XMMWORD PTR [eax]
; -----------------
; do something here
; -----------------
movdqa XMMWORD PTR [eax], xmm1
print str$(pMem),13,10
print str$(aMem),13,10
ret
main endp
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end start