EI
Opcode | Operand | Description |
EI | None | Enable interrupt |
— The interrupt enable flip-flop is set and all interrupts are enabled.
— No flags are affected.
— This instruction is necessary to re-enable the interrupts (except TRAP).
MOV
Opcode Operand Description MOV Rd,Rs Rd,M M, Rs Copy from source to destination. — This instruction copies the contents of the source register into the destination register. — The contents of the source register are not altered. — If one of the operands is a memory location, its location is specified by the contents of the HL registers. — Example: MOV B, C — MOV B, M — MOV M, C
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