LDA — opcode $E4¶
LDA addr — R2 ← addr; ACC ← [R2]
| Operands | Bytes | Microcode steps |
|---|---|---|
| addr | 3 | 18 |
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