PUSH — opcode $09¶
PUSH — [R1] ← ACC; R1−−
| Operands | Bytes | Microcode steps |
|---|---|---|
| — | 1 | 12 |
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