© 2000 Scenix Semiconductor, Inc. All rights reserved.
89
SX Users Manual Rev. 3.1
www.scenix.com
Chapter 3 Instruction Set
3.6.20 MOV M,W
Move W to MODE Register
Operation:
MODE = W
Bits affected:
none
Opcode:
0000 0100 0011
Description:
This instruction moves the lower four bits of W register into the lower four bits of
the MODE register on the SX18/20/28AC and SX18/20/28AC75 devices. The in-
struction moves the lower five bits of W into the lower five bits of the MODE reg-
ister on the SX48/52BD devices. W is left unchanged. The MODE register operates
as a pointer to the port control registers for subsequent accesses to those registers
using the MOV !rx,W instruction.
Cycles:
1
Example:
mov
W,$0B
;move value from file reg 0Bh to W
mov
M,W
;move W into MODE register
This example moves a value from file register 0Bh to W, and then from W into the
MODE register.