Clr1 – NEC 78K/0 Series User Manual
Page 91
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
91
User's Manual U12326EJ4V0UM
Clear Single Bit (Carry Flag)
CLR1
1 Bit Data Clear
[Instruction format]
CLR1 dst
[Operation]
dst
← 0
[Operand]
Mnemonic
Operand(dst)
CLR1
saddr.bit
sfr.bit
A.bit
PSW.bit
[HL].bit
CY
[Flag]
dst = PSW.bit
dst = CY
In all other cases
Z
AC
CY
Z
AC
CY
Z
AC
CY
Ч
Ч
Ч
0
[Description]
•
The destination operand (dst) is cleared (0).
•
When the destination operand (dst) is CY or PSW.bit, only the corresponding flag is cleared (0).
[Description example]
CLR1 P3.7; Bit 7 of port 3 is cleared (0).