The following table lists the assembler instructions and which assembler products support each of them.
| Operation Code | All Assemblers | Assembler F | Assembler H | High Level Assembler Release 1 | High Level Assembler Release 2 | High Level Assembler Release 3 | High Level Assembler Release 4 | Tachyon z/Assembler |
|---|---|---|---|---|---|---|---|---|
| * | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| *PROCESS | --- | --- | --- | --- | Yes | Yes | Yes | Yes |
| .* | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ACONTROL | --- | --- | --- | --- | --- | Yes | Yes | Yes |
| ACTR | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ADATA | --- | --- | --- | --- | Yes | Yes | Yes | Yes |
| AEJECT | --- | --- | --- | Yes | Yes | Yes | Yes | Yes |
| AGO | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| AGOB | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| AIF | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| AIFB | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| AINSERT | --- | --- | --- | --- | --- | Yes | Yes | Yes |
| ALIAS | --- | --- | --- | Yes | Yes | Yes | Yes | Yes |
| AMODE | --- | --- | Yes | Yes | Yes | Yes | Yes | Yes |
| ANOP | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| AREAD | --- | --- | Yes | Yes | Yes | Yes | Yes | Yes |
| ASPACE | --- | --- | --- | Yes | Yes | Yes | Yes | Yes |
| CATTR | --- | --- | --- | --- | Yes | Yes | Yes | Yes |
| CCW | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CCW0 | --- | --- | Yes | Yes | Yes | Yes | Yes | Yes |
| CCW1 | --- | --- | Yes | Yes | Yes | Yes | Yes | Yes |
| CEJECT | --- | --- | --- | Yes | Yes | Yes | Yes | Yes |
| CNOP | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| COM | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| COPY | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CSECT | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CXD | --- | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| DC | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| DROP | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| DS | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| DSECT | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| DXD | --- | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| EJECT | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| END | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ENTRY | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| EQU | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| EXITCTL | --- | --- | --- | Yes | Yes | Yes | Yes | Yes |
| EXTRN | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| GBLA | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| GBLB | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| GBLC | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ICTL | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ISEQ | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| LCLA | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| LCLB | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| LCLC | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| LOCTR | --- | --- | Yes | Yes | Yes | Yes | Yes | Yes |
| LTORG | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| MACRO | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| MEND | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| MEXIT | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| MHELP | --- | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| MNOTE | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| OPSYN | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ORG | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| POP | --- | --- | Yes | Yes | Yes | Yes | Yes | Yes |
| Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| PUNCH | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| PUSH | --- | --- | Yes | Yes | Yes | Yes | Yes | Yes |
| REPRO | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| RMODE | --- | --- | Yes | Yes | Yes | Yes | Yes | Yes |
| RSECT | --- | --- | --- | Yes | Yes | Yes | Yes | Yes |
| SETA | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| SETAF | --- | --- | --- | --- | Yes | Yes | Yes | Yes |
| SETB | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| SETC | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| SETCF | --- | --- | --- | --- | Yes | Yes | Yes | Yes |
| SPACE | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| START | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| TITLE | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| USING | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| WXTRN | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| XATTR | --- | --- | --- | --- | --- | --- | Yes | Yes |