6.8.2 ADD - DI & SUB - DI
Input/output Operand
Data type
IN1, IN2
VD, ID, QD, MD, SMD, SD, LD, AC, HC,Constant, *VD, *LD, *AC
Double integer
OUT
VD, ID, QD, MD, SMD, SD, LD, AC, *VD, *LD, *AC
Double integer
ADD - DI: IN1 + IN2 = OUT Both input and output are 32
bits integers.
SUB - DI : IN1 - IN2 = OUT
Both input and output are 32
bits integers.
IN1 + IN2 = OUT
IN1 - IN2 = OUT
SM1.1 is used for indicating overflow errors and illegal
values.
error conditions:
0006
Indirect address
SM1.1
overflow
Special memory bit:
SM1.0
Zero result
SM1.1
overflow
SM1.2
Negative result
Example ：
133
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