High Level Assembler - Opcodes overview, Extension Set A4

The table below lists all documented opcodes in extension set A4 for IBM mainframe processors. Each opcode links to a text section with some additional info on the pertinent opcode.

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 A4 - Vector Facility

All instructions in this table are four bytes in length. The first byte always has a value of X'A4', 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.

A4 _0 _1 _2 _3 _4 _5 _6 _7 _8 _9 _A _B _C _D _E _F
0_ VAE VSE VME VDE VMAE VMSE VMCE VACE VCE VL
VLE
VLM
VLME
VLY
VLYE
  VST
VSTE
VSTM
VSTME
VSTK
VSTKE
1_ VAD VSD VMD VDD VMAD VMSD VMCD VACD VCD VLD VLMD VLYD   VSTD VSTMD VSTKD
2_ VA VS VM   VN VO VX   VC VLH VLINT     VSTH    
3_                                
4_       VSQE VTAE VTSE                    
5_       VSQD VTAD VTSD                    
6_                                
7_                                
8_ VAES VSES VMES VDES VMAES VMSES     VCES              
9_ VADS VSDS VMDS VDDS VMADS VMSDS     VCDS              
A_ VAS VSS VMS   VNS VOS VXS   VCS              
B_                                
C_                                
D_                                
E_                                
F_                                

 

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