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Compaq 21264 User Manual

Page 272

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A–6

Alpha Instruction Set

Alpha 21264/EV67 Hardware Reference Manual

Alpha Instruction Summary

LDS

Mem

22 Load

S_floating

LDT

Mem

23 Load

T_floating

LDWU

Mem

0C

Load zero-extended word

MAXSB8

Opr

1C.3E

Vector signed byte maximum

MAXSW4

Opr

1C.3F

Vector signed word maximum

MAXUB8

Opr

1C.3C

Vector unsigned byte maximum

MAXUW4

Opr

1C.3D

Vector unsigned word maximum

MB

Mfc

18.4000 Memory barrier

MF_FPCR

F-P

17.025

Move from FPCR

MINSB8

Opr

1C.38

Vector signed byte minimum

MINSW4

Opr

1C.39

Vector signed word minimum

MINUB8

Opr

1C.3A

Vector unsigned byte minimum

MINUW4

Opr

1C.3B

Vector unsigned word minimum

MSKBL

Opr

12.02

Mask byte low

MSKLH

Opr

12.62

Mask longword high

MSKLL

Opr

12.22

Mask longword low

MSKQH

Opr

12.72

Mask quadword high

MSKQL

Opr

12.32

Mask quadword low

MSKWH

Opr

12.52

Mask word high

MSKWL

Opr

12.12

Mask word low

MT_FPCR

F-P

17.024

Move to FPCR

MULF F-P

15.082

Multiply

F_floating

MULG

F-P

15.0A2 Multiply G_floating

MULL

Opr

13.00

Multiply longword

MULL/V

Opr

13.40

Multiply longword with integer overflow enable

MULQ

Opr

13.20

Multiply quadword

MULQ/V

Opr

13.60

Multiply quadword with integer overflow enable

MULS

F-P

16.082 Multiply

S_floating

MULT

F-P

16.0A2 Multiply T_floating

ORNOT

Opr

11.28

Logical sum with complement

PERR

Opr

1C.31

Pixel error

PKLB

Opr

1C.37

Pack longwords to bytes

Table A–2 Architecture Instructions (Continued)

Mnemonic

Format

Opcode

Description