| Abbreviation | Definition |
|---|---|
| EOP | End Of Production |
| EOT | End Of Text |
| EP | Else Part |
| EPC | Emulate Pocket Calculator |
| EPI | Energy Per Instruction |
| EPIC | Explicitly Parallel Instruction Computing |
| EPIC | xplicitly Parallel Instruction Computing |
| EQ | Equal |
| ER | Examine Register |
| ERI | Enable Random Interrupt |
| ERL | Extended Range Left |
| ERM | Erase Reserved Memory |
| ERR | Extended Range Right |
| ERW | Execute Read Write |
| ES | Error Sources |
| ES | Exit to Shell |
| ES | Extra Segment |
| ESC | Escape |
| ESP | Enable SPrinkler |
| ESP | Enhanced Stack Pointer |