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21264/EV68A 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