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Chapter 42½ VAX-11/780—A Virtual Address Extension to the DEC PDP-11 Family 729

Loop and Case Branch

ACB-

Add, Compare and Branch(B,W,L,F,D)

AOBLEQ

Add One and Branch Less Than or Equal

AOBLSS

Add One and Branch Less Than

SOBGEQ

Subtract One and Branch Greater Than or Equal

SOBGTR

Subtract One and Branch Greater Than

CASE-

Case on(B,W,L)

Subroutine Call and Return Instructions

BSB

Branch to Subroutine with(B,W,) Displacement

JSB

Jump to Subroutine

RSB

Return from Subroutine

Procedure Call and Return Instructions

CALLG

Call Procedure with General Argument List

CALLS

Call Procedure with Stack Argument List

RET

Return from Procedure

Access Mode Instructions

CHM

Change Mode to (Kernel, Executive, Supervisor, User)

REI

Return from Exception or Interrupt

PROBER

Probe Read

PROBEW

Probe Write

Privileged Processor Register Control Instructions

SVPCTX

Save Process Context

LDPCTX

Load Process Context

MTPR

Move to Process Register

MFPR

Move from Processor Register

Special Function Instructions

CRC

Cyclic Redundancy Check

BPT

Breakpoint Fault

XFC

Extended Function Call

NOP

No Operation

HALT

Halt

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