HTL
Opcode | Operand | Description |
HLT | None | Halt |
— The CPU finishes executing the current instruction and halts any further execution.
— An interrupt or reset is necessary to exit from the halt state.
— Example: HLT
SIM
Opcode Operand Description SIM None Set Interrupt Mask — This is a multipurpose instruction and used to implement the 8085 interrupts 7.5, 6.5, 5.5, and serial data output. — The instruction interprets the accumulator contents as follows. — Example: SIM
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