NEC PD75P402 User Manual Page 187

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176
CHAPTER 9. INSTRUCTION SET
9.4.13 CPU Control Instructions
HALT
Function: PCC. 2 1
Sets the HALT mode (This instruction sets bit 2 of the processor clock control register.).
Note The instruction following the HALT instruction is made an NOP instruction.
STOP
Function: PCC. 3 1
Sets the STOP mode (This instruction sets bit 3 of the processor clock control register).
Note The instruction following the STOP instruction is made an NOP instruction.
NOP
Function: Expend one machine cycle without performing any operation.
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