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AMD 64-Bit Technology - ECE User Home Pages

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<strong>AMD</strong> <strong>64</strong>-<strong>Bit</strong> <strong>Technology</strong> 26568—Rev. 3.02—August 2002<br />

Related Instructions<br />

PINSRW<br />

rFLAGS Affected<br />

None<br />

MXCSR Flags Affected<br />

None<br />

Exceptions<br />

Exception<br />

Invalid opcode, #UD<br />

Real<br />

X<br />

Virtual<br />

8086 Protected Cause of Exception<br />

X<br />

X<br />

The SSE instructions are not supported, as indicated by bit<br />

25 in CPUID standard function 1; and the <strong>AMD</strong> extensions<br />

to MMX are not supported, as indicated by bit 22 of CPUID<br />

extended function 8000_0001.<br />

X<br />

X<br />

X<br />

The emulate bit (EM) of CR0 was set to 1.<br />

X X X The operating-system FXSAVE/FXRSTOR support bit<br />

(OSFXSR) of CR4 is cleared to 0.<br />

Device not available, #NM X X X The task-switch bit (TS) of CR0 was set to 1.<br />

248 PEXTRW

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