© 2000 Scenix Semiconductor, Inc. All rights reserved.
79
SX User’s Manual Rev. 3.1
www.scenix.com
Chapter 3 Instruction Set
3.6.11
CLRB fr.bit
Clear Bit in fr
Operation:
Clear a specified bit in fr
Bits affected:
none
Opcode:
0100 bbbf ffff
Description:
This instruction clears a bit in the specified file register to 0 without changing the
other bits in the register. The file register address (00h through 1Fh) and the bit
number (0 through 7) are the instruction operands.
Cycles:
1
Example:
clrb
$1F.7
This example clears the most significant bit of file register 1Fh.
