Swap nibbles in f
The upper and lower nibbles of register ‘f’ are exchanged. If ‘d’ is ‘0’, the result is placed in the W register. If ‘d’ is ‘1’, the result is placed in register ‘f’.
[the_ad id=”3059″]Syntax:
[ label ] SWAPF f,d
Operation:
(f<3:0>) → (destination<7:4>),
(f<7:4>) → (destination<3:0>)
Operands:
- f is from 0 to 127
- d is either 0 or 1
Status Affected: C
Example:
SWAPF REG,0
Before instruction:
REG = 0x02 W = 0x01
After instruction:
REG = 0x02 W = 0x20[the_ad id=”3059″]
Example:
SWAPF REG,1
Before instruction:
REG = 0x02 W = 0x04
After instruction:
REG = 0x02 W = 0x20
