© 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.