assembly - Moving a quadword number to xmm registers -


i trying move number in 64-bit register xmm register arithmetic. thinking was:

movq xmm1, r14

in program r14 holding counter , need moved xmm1 can divide sum of numbers have stored in xmm0. , display it.

when execute code, stores 0 xmm1.

someone please help.

i created test.asm as:

section .code global _start _start:     mov r14,0x123456789abcdef0     movq xmm1, r14     int 3

compiled , linked with:

nasm.exe -f win64 -o test.obj test.asm link.exe test.obj /entry:_start /subsystem:console

and ran under 64-bit windbg. when hit int 3 windbg showed registers as:

r14      123456789abcdef0 xmm1     0.000000e+000: 0.000000e+000: 5.690457e-028:-7.811515e-023 xmm1/0   9abcdef0 xmm1/1   12345678 xmm1/2   0 xmm1/3   0 xmm1l    1234:5678:9abc:def0 xmm1h    0:0:0:0

...and having typed of that, possible looking @ xmm1 floating point instead of integer values?


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