Compaq 21264 User Manual
Page 269

Alpha 21264/EV67 Hardware Reference Manual
Alpha Instruction Set
A–3
Alpha Instruction Summary
BSR
Mbr
34
Branch to subroutine
CALL_PAL
Pcd
00
Trap to PALcode
CMOVEQ
Opr
11.24
CMOVE if
=
zero
CMOVGE
Opr
11.46
CMOVE if
≥
zero
CMOVGT
Opr
11.66
CMOVE if > zero
CMOVLBC
Opr
11.16
CMOVE if low bit clear
CMOVLBS
Opr
11.14
CMOVE if low bit set
CMOVLE
Opr
11.64
CMOVE if
≤
zero
CMOVLT
Opr
11.44
CMOVE if < zero
CMOVNE Opr
11.26
CMOVE if
≠
zero
CMPBGE
Opr
10.0F
Compare byte
CMPEQ
Opr
10.2D
Compare signed quadword equal
CMPGEQ
F-P
15.0A5
Compare G_floating equal
CMPGLE
F-P
15.0A7
Compare G_floating less than or equal
CMPGLT
F-P
15.0A6
Compare G_floating less than
CMPLE
Opr
10.6D
Compare signed quadword less than or equal
CMPLT
Opr
10.4D
Compare signed quadword less than
CMPTEQ
F-P
16.0A5
Compare T_floating equal
CMPTLE
F-P
16.0A7
Compare T_floating less than or equal
CMPTLT
F-P
16.0A6
Compare T_floating less than
CMPTUN
F-P
16.0A4
Compare T_floating unordered
CMPULE
Opr
10.3D
Compare unsigned quadword less than or equal
CMPULT
Opr
10.1D
Compare unsigned quadword less than
CPYS F-P
17.020
Copy
sign
CPYSE
F-P
17.022
Copy sign and exponent
CPYSN
F-P
17.021
Copy sign negate
CTLZ
Opr
1C.32
Count leading zero
CTPOP
Opr
1C.30
Count population
CTTZ
Opr
1C.33
Count trailing zero
CVTDG
F-P
15.09E
Convert D_floating to G_floating
CVTGD
F-P
15.0AD
Convert G_floating to D_floating
CVTGF
F-P
15.0AC
Convert G_floating to F_floating
Table A–2 Architecture Instructions (Continued)
Mnemonic
Format
Opcode
Description