IRET — opcode $FD¶
IRET — pop PC as RET, then INT-EN
| Operands | Bytes | Microcode steps |
|---|---|---|
| — | 1 | 19 |
One column per microcode step. The control lines are read from the microcode image; the address bus, data bus and registers at the bottom are a model. How to read the diagrams · the instruction set