© 2000 Scenix Semiconductor, Inc. All rights reserved.
71
SX Users 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.