SETPSW

Setting a flag or bit in the PSW

SETPSW

SET flag of PSW


[Syntax]

SETPSW dest

 

[Operation]

dest = 1;

 

[Function]

-

This instruction clears the O, S, Z, or C flag, which is specified by dest, or the U or I bit.

-

In user mode, writing to the U or I bit in the PSW will be ignored. In supervisor mode, all flags and bits can be written to.

 

[Instruction Format]

Syntax

Operand

Code Size

(Byte)

dest

SETPSW dest

flag

2

 

[Flag Change]

Flag

C

Z

S

O

Change

*

*

*

*

Note

* The specified flag is set to 1.

 

[Description Example]

SETPSW C

SETPSW Z