Allen-Bradley MicroLogix 1400 User Manual

Publication 1766-RM001A-EN-P - October 2008
Move Instructions 265
• Valid constants for the mask are -32768…32767 (word) and
-2,147,483,648…2,147,483,647 (long word). The mask is displayed
as a hexadecimal unsigned value from 0000 0000…FFFF FFFF.
Addressing Modes and File Types can be used as shown in the following
table:
Updates to Math Status Bits
After a MVM instruction is executed, the arithmetic status bits in the status
file are updated. The arithmetic status bits are in word 0 bits 0-3 in the
processor status file (S2).
Mask Example (Word Addressing Level)
Word Value in
Hexadecimal
Value in Binary
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Value in Destination
Before Move
FFFF 1 1 1 1
1 1 1 1 11111 1 1 1
Source Value 5555 0 1 0 1
0 1 0 101010 1 0 1
Mask F0F0 1 1 1 1
0 0 0 0 11110 0 0 0
Value in Destination
After Move
5F5F 0 1 0 1
1 1 1 1 01011 1 1 1
MVM Instruction Valid Addressing Modes and File Types
For definitions of the terms used in this table see Using the Instruction Descriptions on page 92.
Parameter
Data Files Function Files
CS - Comms IOS - I/O DLS - Data Log
Address
Mode
(1)
Address Level
O I S B T, C, R N F ST L MG, PD RI/RIX PLS RTC HSC PTOX, PWMX STI EII BHI MMI LCD Immediate Direct Indirect Bit Word Long Word Element
Source •• ••• •• • • •••
Mask •• ••• •• •
• • •••
Destination • • • • • • • •
• •••
(1) See Important note about indirect addressing.
IMPORTANT
You cannot use indirect addressing with: S, MG, PD, RTC, HSC, PTOX,
PWMX, STI, EII, BHI, MMI, CS, IOS, and DLS files.
Math Status Bits
With this Bit: The Controller:
S:0/0 Carry always resets
S:0/1 Overflow always resets
S:0/2 Zero Bit sets if destination is zero, otherwise resets
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Allen-Bradley MicroLogix 1400 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1400
Category	Controller
Language	English