STA — opcode $E5¶
STA addr — R2 ← addr; [R2] ← ACC
| Operands | Bytes | Microcode steps |
|---|---|---|
| addr | 3 | 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