x86 Instruction Set Reference

SUBPD - Subtract Packed Double-Precision Floating-Point Values

Opcode Mnemonic Description
66 0F 5C /r SUBPD xmm1, xmm2/m128 Subtract packed double-precision floating-point values in xmm2/m128 from xmm1.
Description

Performs an SIMD subtract of the two packed double-precision floating-point values in the source operand (second operand) from the two packed double-precision floating-point values in the destination operand (first operand), and stores the packed double-precision floating-point results in the destination operand. The source operand can be an XMM register or a 128-bit memory location. The destination operand is an XMM register. See Figure 11-3 in the IA-32 Intel Architecture Software Developer's Manual, Volume 1 for an illustration of an SIMD double-precision floating-point operation.

Operation
Destination[0..63] = Destination[0..63] - Source[0..63];
Destination[64..127] = Destination[64..127] - Source[64..127];
Instruction Latency Throughput Execution Unit
CPUID0F3n/0F2n/069n0F3n/0F2n/069n0F2n
SUBPD xmm, xmm5/4/42/2/2FP_ADD