参数资料
型号: UPD178F124
英文描述: 78K/0 Series for Instructions | User's Manual[10/2001]
中文描述: 78K线/ 0系列说明|用户手册[10/2001]
文件页数: 3/129页
文件大小: 644K
代理商: UPD178F124
100
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
User's Manual U12326EJ4V0UM
Return from Break
RETB
Return from Software Vectored Interrupt
[Instruction format]
RETB
[Operation]
PCL
← (SP),
PCH
← (SP+1),
PSW
← (SP+2),
SP
← SP+3
[Operand]
None
[Flag]
ZAC
CY
RRR
[Description]
This is a return instruction from the software interrupt generated with the BRK instruction.
The data saved in the stack returns to the PC and the PSW, and the program returns from the interrupt service
routine.
None of interrupts are acknowledged between this instruction and the next instruction to be executed.
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