Re: How can I use MMX instructions on amd64 processors?

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

Try using the SSE (xmm*) instructions instead?

"Pooh" <Pooh@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:5E0A353A-7BA2-48AE-8C5C-1AEE73B060F3@xxxxxxxxxxxxxxxx
An error message showed up when I was compiling an .asm file with MMX
instructions in it? However, the same test file could pass the compile if
I
used an early version (8.00.2207) of ml64. The version that refuses my
test
file is 8.00.40310.39 coming with DDK 3790.1830. Have anyone ever seen
this
message and knows how to fix it?

The command line to compile my test file:
ml64 /c test.asm

The error message I got:
error A2222: x87 and MMX instructions disallowed; legacy FP state not
saved
in Win64

The test file is as simple as the following:
.code
_Start:
movd rax, mm0
END _Start


.

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