High Level Assembler - Opcodes overview, Extension Sets B97x

The table below lists all documented extended mnemonics for instructions:

Opcode Mnemonic Description Table Type
B972 CRT Compare Register and Trap Extended Mnemonics
B973 CLRT Compare Logical Register and Trap Extended Mnemonics

Each extended mnemonic links to a text section with some additional info on the pertinent pseudo 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.

Extended Mnemonics for instructions in extension set B9

All instructions in this table are four bytes in length. The first byte always has a value of X'B9'. The second byte of the opcode designates the exact instruction and has a value in the range X'70' thru X'7F'. This byte is the second byte of the instruction; its second digit is the first nibble in the table below.

The second nibble in the table indicates the mask value for the condition code for the pertinent instructions. In the assembled instructions this is the first half of the third byte.

Extended Mnemonics for CRT (Compare Register and Trap)

B972 0 1 2 3 4 5 6 7 8 9 A B C D E F
      CRTH   CRTL   CRTNE   CRTE   CRTNL   CRTNH      

 

Extended Mnemonics for CLRT (Compare Logical Register and Trap)

B973 0 1 2 3 4 5 6 7 8 9 A B C D E F
      CLRTH   CLRTL   CLRTNE   CLRTE   CLRTNL   CLRTNH      

 

This site is a member of WebRing.
You are invited to browse the list of mainframe-loving sites.
Running
    Tyrannosaurus Rex Dinos are not dead. They are alive and well and living in data centers all around you. They speak in tongues and work strange magics with computers. Beware the dino! And just in case you're waiting for the final demise of these dino's: remember that dinos ruled the world for 155-million years!
Dinos and other anachronisms
[ Join Now | Ring Hub | Random | << Prev | Next >> ]
 

Below you find the logo of our sponsor and logos of the web-standards that this page adheres to.