3DNow! on the Athlon
Zero switching overhead back to FP!
Most instructions have one cycle latency
24 more instructions
- 12 more integer SIMD instructions
- 7 more data manipulation instructions
- 5 “unique” DSP instructions
- Packed FP to Integer word conversion with sign extend
- Packed FP negative accumulate
- Packed FP mixed negative-positive accumulate
- Packed integer word to FP conversion
- Packed swap double-word