High Level Assembler - Opcodes overview, Extension Set A5

The tables below list all documented opcodes in extension set A5 for IBM mainframe processors. Each opcode links to a text section with some additional info on the pertinent opcode.

The first table lists all opcodes in the current extension set A5. These are all Halfword-Immediate operations. Older versions of the architecture supported a different extension set A5, which was used for Vector-Facility instructions. These are in the second table.

Opcode Assignments.

Remark:
Please note that the creation of descriptions for all individual instructions is an ongoing process. As yet no such descriptions have been created for the opcodes on this page.

Extension Set A5 - Halfword Immediate

All instructions in this table are four bytes in length. The first byte always has a value of X'A5', the second half of the second byte designates the exact instruction.

A5 0 1 2 3 4 5 6 7 8 9 A B C D E F
  IIHH IIHL IILH IILL NIHH NIHL NILH NILL OIHH OIHL OILH OILL LLIHH LLIHL LLILH LLILL

Extension Set A5 - Vector Facility

All instructions in this table are four bytes in length. The first byte always has a value of X'A5', the second byte designates the exact instruction.

All entries in this table have a slightly darker background because the entire extension set is no longer supported on either current mainframe hardware or by IBM's current version of HLASM. The associated mnemonics are printed in italics.

A5 _0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F
0_ VAER VSER VMER VDER     VMCER VACER VCER VLER
VLR
VLMER
VLMR
VLZER
VLZR
       
1_ VADR VSDR VMDR VDDR     VMCDR VACDR VCDR VLDR VLMDR VLZDR        
2_ VAR VSR VMR   VNR VOR VXR   VCR              
3_                                
4_ VLPER VLNER VLCER VSQER                        
5_ VLPDR VLNDR VLCDR VSQDR                        
6_ VLPR VLNR VLCR                          
7_                                
8_ VAEQ VSEQ VMEQ VDEQ VMAEQ VMSEQ     VCEQ VLEQ VLMEQ          
9_ VADQ VSDQ VMDQ VDDQ VMADQ VMSDQ     VCDQ VLDQ VLMDQ          
A_ VAQ VSQ VMQ   VNQ VOQ VXQ   VCQ VLQ VLMQ          
B_                                
C_                                
D_                                
E_                                
F_                                

 

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To the Halfword-Immediate instructions.
To the Vector Facility instructions.



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