SSE3 Instruction Set
Introduction
13 new instructions were introduced in the 90nm Pentium® 4 processor. They are referred to as the SSE3 instruction set. No new registers were introduced. The SSE3 instructions fall into five categories:
One new x87 FP-to-integer conversion instruction:
- the FISTTP instruction. See “Improved x87 FP-to-Integer Conversion Instruction” on page 1099.
Complex arithmetic instructions:
- the ADDSUBPS, ADDSUBPD, MOVSLDUP, MOVSHDUP, and MOVDDUP instructions. See “New Complex Arithmetic Instructions” on page 1100.
One new video encoding instruction:
- the LDDQU instruction. See “Improved Motion Estimation Performance” on page 1101.
Graphics-oriented instructions:
- the HADDPS, HSUBPS, HADDPD, and HSUBPD instructions. See “Instructions ...
Get The Unabridged Pentium 4 IA32 Processor Genealogy now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
