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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 />

PINSRW<br />

Packed Insert Word<br />

Inserts a 16-bit value from the low-order word of a 32-bit general purpose register or a<br />

16-bit memory location into an XMM register. The location in the destination register<br />

is selected by the immediate byte operand, as shown in Table 1-3. The other words in<br />

the destination register operand are not modified.<br />

Mnemonic Opcode Description<br />

PINSRW xmm, reg32/mem16, imm8 66 0F C4 /r ib Inserts a 16-bit value from a general-purpose register<br />

or memory location into an XMM register.<br />

xmm<br />

reg32/mem16<br />

127 112 111 96 95 80 79 <strong>64</strong> 63 48 47 32 31 16 15 0<br />

32<br />

15<br />

0<br />

imm8<br />

7 0<br />

select word position for insert<br />

pinsrw-128.eps<br />

PINSRW 249

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