4
CPU OVERVIEW
35
4.8.12
vrsq
vrsq
ReciprocalSquareRoot (Single/Pair/Triple/Quad)
vfpu_regs[%vfpu_rd] <- 1.0 / sqrt(vfpu_regs[%vfpu_rs])
vrsq.s %vfpu_rd, %vfpu_rs
calculate reciprocal sqrt (1/sqrt(x)) on single
vrsq.p %vfpu_rd, %vfpu_rs
calculate reciprocal sqrt (1/sqrt(x)) on pair
vrsq.t %vfpu_rd, %vfpu_rs
calculate reciprocal sqrt (1/sqrt(x)) on triple
vrsq.q %vfpu_rd, %vfpu_rs
calculate reciprocal sqrt (1/sqrt(x)) on quad
%vfpu_rd
VFPU Vector Target Register ([s|p|t|q]reg 0..127)
%vfpu_rs
VFPU Vector Source Register ([s|p|t|q]reg 0..127)
4.8.13
vsin
vsin
Sinus (Single/Pair/Triple/Quad)
vfpu_regs[%vfpu_rd] <- sin(vfpu_regs[%vfpu_rs])
vsin.s %vfpu_rd, %vfpu_rs
calculate sin on single
vsin.p %vfpu_rd, %vfpu_rs
calculate sin on pair
vsin.t %vfpu_rd, %vfpu_rs
calculate sin on triple
vsin.q %vfpu_rd, %vfpu_rs
calculate sin on quad
%vfpu_rd
VFPU Vector Target Register ([s|p|t|q]reg 0..127)
%vfpu_rs
VFPU Vector Source Register ([s|p|t|q]reg 0..127)
note: trig functions on the vfpu expect input values like vsin(degrees/90) or vsin(2/PI * radians)
4.8.14
vcos
vcos
Cosine (Single/Pair/Triple/Quad)
vfpu_regs[%vfpu_rd] <- cos(vfpu_regs[%vfpu_rs])
vcos.s %vfpu_rd, %vfpu_rs
calculate cos on single
vcos.p %vfpu_rd, %vfpu_rs
calculate cos on pair
vcos.t %vfpu_rd, %vfpu_rs
calculate cos on triple
vcos.q %vfpu_rd, %vfpu_rs
calculate cos on quad
%vfpu_rd
VFPU Vector Target Register ([s|p|t|q]reg 0..127)
%vfpu_rs
VFPU Vector Source Register ([s|p|t|q]reg 0..127)
Note by John Kelley: trig functions on the vfpu expect input values like vsin(degrees/90) or vsin(2/PI * radians)
Содержание PlayStationPortable
Страница 114: ...12 AUDIO PROCESSING 114 12 Audio Processing 12 1 Overview 44100 Hz Sample Frequency ...
Страница 116: ...14 WLAN 116 14 WLAN ...
Страница 117: ...15 USB PORT 117 15 USB Port ...
Страница 118: ...16 UMD 118 16 UMD ...
Страница 119: ...17 MEMORY STICK 119 17 Memory Stick ...
Страница 128: ...21 FLASH MEMORY STRUCTURE FLASH1 128 21 Flash Memory Structure flash1 DIC REGISTRY VSH THEME ...
Страница 141: ...28 IPL 141 28 IPL ...