AMD x86-64 Architecture Programmer's Manual, Volume 4, 128-Bit ...

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AMD64 Technology 26568—Rev. 3.05—September 2003 Exception Real Denormalized-operand exception (DE) X X X A source operand was a denormal value. Overflow exception (OE) X X X A rounded result was too large to fit into the format of the destination operand. Underflow exception (UE) X X X A rounded result was too small to fit into the format of the destination operand. Precision exception (PE) X X X A result could not be represented exactly in the destination format. 378 SUBSD Virtual 8086 Protected Cause of Exception
26568—Rev. 3.05—September 2003 AMD64 Technology SUBSS Subtract Scalar Single-Precision Floating-Point Subtracts the single-precision floating-point value in the low-order doubleword of the second source operand from the single-precision floating-point value in the low-order doubleword of the first source operand and writes the result in the low-order doubleword of the destination (first source). The three high-order doublewords of the destination are not modified. The first source/destination operand is an XMM register. The second source operand is another XMM register or 32-bit memory location. Mnemonic Opcode Description SUBSS xmm1, xmm2/mem32 F3 0F 5C /r Subtracts low-order single-precision floating-point value in an XMM register or in a 32-bit memory location from low-order single-precision floating-point value in another XMM register and writes the result in the destination XMM register. Related Instructions SUBPD, SUBPS, SUBSD rFLAGS Affected None xmm1 xmm2/mem32 127 32 31 0 127 32 31 0 subtract subss.eps SUBSS 379
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