Statement List (STL) - DCE FEL ČVUT v Praze

Conversion Instructions
3.9 INVD Ones Complement Double Integer (32-Bit)
Format
Description
Status word
Example
INVD
INVD (ones complement double integer) forms the ones complement of the 32-bit
value in ACCU 1. Forming the ones complement inverts the value bit by bit, that is,
zeros replace ones, and ones replace zeros. The result is stored in accumulator 1.
BR CC 1 CC 0 OV OS OR STA RLO /FC
writes: - - - - - - - - -
STL Explanation
L ID8 //Load value into ACCU 1.
INVD //Form ones complement (32-bit).
T MD10 //Transfer result to MD10.
Contents ACCU1-H ACCU1-L
Bit 31 . .
.
. . . . . . .
16
15 . .
.
. . . . . . . 0
before execution of INVD 0110 1111 1000 1100 0110 0011 1010 1110
after execution of INVD 1001 0000 0111 0011 1001 1100 0101 0001
Statement List (STL) for S7-300 and S7-400 Programming
A5E00706960-01 3-9