过程控制指令是通过设置(1)或重置(0)标志寄存器的值来控制处理器动作的指令。
下表显示了过程控制指令列表：
| OPCODE | OPERAND | EXPLPANATION | EXAMPLE |
|---|---|---|---|
| STC | none | sets carry flag to 1 | STC |
| CLC | none | resets carry flag to 0 | CLC |
| CMC | none | compliments the carry flag | CMC |
| STD | none | sets directional flag to 1 | STD |
| CLD | none | resets directional flag to 0 | CLD |
| STI | none | sets the interrupt flag to 1 | STI |
| CLI | none | resets the interrupt flag to 0 | CLI |