Installation manual

Publication 1747-RM001G-EN-P - November 2008
Data Handling Instructions 5-23
Not (NOT)
This instruction performs a bit-by-bit logical NOT. The operation is
performed using the value at source A. The result (one’s complement of A) is
stored in the destination.
The source and destination must be word addresses.
Updates to Arithmetic Status Bits
The arithmetic status bits are found in Word 0, bits 0 to 3 in the controller
status file. After an instruction is executed, the arithmetic status bits in the
status file are updated.
NOT
NOT
Source B3:2
0001011011001000<
Dest B3:6
1110100100110111<
NOT
Output Instruction
Fixed SLC
5/01
SLC
5/02
SLC
5/03
SLC
5/04
SLC
5/05
• •••••
Table 5.15 Truth Table for A Not = Dest
A Dest
01
10
Table 5.16 Controller Function
With this Bit The Controller
S:0/0 Carry (C) always resets.
S:0/1 Overflow (V) always resets.
S:0/2 Zero (Z) sets if result is zero; otherwise resets.
S:0/3 Sign (S) sets if result is negative (most significant bit is
set); otherwise resets.