CLRF

Clear f

The contents of register ‘f’ are cleared and the Z bit is set.

Syntax:

[ label ] CLRF f

Operation:

00h → (f)
1 → Z

Operands:

• f is from 0 to 127 (decimal)

Status Affected: Z

Example:

CLRF REG

Before instruction:

REG = 0xFF
Z = 0

After instruction:

REG = 0x00
Z = 1

Example:

CLRF REG

Before instruction:

REG = b'11101110
Z = 0

After instruction:

REG = b'00000000'
Z = 1