Complement Of 2 Of Bin 16-Bit Data (Sign Inversion), Complement Of 2 Of Bin 32-Bit Data (Sign Inversion) - Mitsubishi Electric MELSEC-Q/L Programming Manual

Complement of 2 of BIN 16-bit data (sign inversion), complement
of 2 of BIN 32-bit data (sign inversion)
NEG(P), DNEG(P)
High
Basic
Process Redundant Universal
performance
NEG, DNEG
NEGP, DNEGP
(D): Head number of the devices where the data for which complement of 2 is performed is stored (BIN 16/32 bits)
Setting Internal device
data
Bit Word

(D)
Processing details
■NEG
• Reverses the sign of the 16-bit device designated by (D) and stores at the device designated by (D).
b15
Before execution
D
1 0
Sign conversion
b15
0
After execution D
• Used when reversing positive and negative signs.
■DNEG
• Reverses the sign of the 32-bit device designated by (D) and stores at the device designated by (D).
b31
Before
execution D 1 1 1
1 0 0 0
Sign
1 1 1
conversion -
b31
After
0 0 0
D
execution
• Used when reversing positive and negative signs.
Operation error
• There is no operation error in the NEG(P) or DNEG(P) instruction.
LCPU
Command
Command
R, ZR J\
Bit
16 bit
0 0 0 0
1 1 1 1
0 0 0 0 0 0 0
1 0 1 0 1 0 1 0
1 0 1 0 1 0 1
32 bit
1 1 1 1 0 1
0 0 0 0 0 0
1 1 1 1 0 1
0 0 0 0 1 0
indicates an instruction symbol of
U\G
Word
b0
0 0 0 0
1 1 1 1
0 0 0 0 0 0 0 0
1 0 1 0 1 0 1 0
b0
0 1 0 1 0 1 1 0
b0
0 0 1 0 0
-218460
0 0 0 0 0
0 0 1 0 0
b0
1 1 1 0 0
218460
NEG/DNEG.
D
P D
Zn Constant Others

-21846
21846
6 BASIC INSTRUCTIONS
6.3 Data Conversion Instructions
6
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