© 2000 Scenix Semiconductor, Inc. All rights reserved. 71 SX User’s Manual Rev. 3.1 www.scenix.com Chapter 3 Instruction Set 3.6.5 AND W,#lit AND of W and Literal into W Operation: W = W & lit Bits affected: Z Opcode: 1110 kkkk kkkk Description: This instruction performs a bitwise logical AND of the contents of W and an 8-bit
literal value, and writes the 8-bit result into W. If the result is 00h, the Z bit is set.
Cycles: 1 Example: and W,#$0F ;mask out four high-order bits of W This example performs a bitwise logical AND of W with the literal value #0Fh. The
result is written back to W.
For  example,  suppose  that  W  contains  the  value  50h.  The  instruction  takes  the
logical AND of this value with 0Fh and writes the result, 00h, into W. The result is
zero, so the Z bit is set.