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AMD 64-Bit Technology - ECE User Home Pages

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26568—Rev. 3.02—August 2002<br />

<strong>AMD</strong> <strong>64</strong>-<strong>Bit</strong> <strong>Technology</strong><br />

Exception<br />

SIMD Floating-Point<br />

Exception, #XF<br />

Invalid-operation<br />

exception (IE)<br />

Denormalized-operand<br />

exception (DE)<br />

Real<br />

X X X There was an unmasked SIMD floating-point exception<br />

while CR4.OSXMMEXCPT = 1.<br />

See SIMD Floating-Point Exceptions, below, for details.<br />

SIMD Floating-Point Exceptions<br />

X<br />

X<br />

Virtual<br />

8086 Protected Cause of Exception<br />

X<br />

X<br />

X<br />

X<br />

A source operand was an SNaN value.<br />

A source operand was a QNaN value, and the comparison<br />

does not allow QNaN values (refer to Table 1-1 on<br />

page 24).<br />

X X X A source operand was a denormal value.<br />

CMPSS 35

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