6.8.3 MUL & DIV
Input/output Operand
Data type
IN1, IN2
VW, IW, QW, MW, SW, SMW, T, C, LW, AC, AIW,constant, *VD, *LD, *AC Integer
OUT
VD, ID, QD, MD, SMD, SD, LD, AC, *VD, *LD, *AC
Double Integer
MUL:IN1 X IN2= OUT Input 16 bits integers and output
32 bits integer.
DIV ： IN1/IN2= OUT Input 16 bits integers and the
output result is 32 bits.The result includes a 16 bits
remainder (high) and a 16 bits quotient (low).
IN1 * IN2 = OUT
IN1 / IN2 = OUT
SM1.1 is used for indicating overflow errors and illegal values.
error conditions:
Indirect address
0006
overflow
SM1.1
The divisor is 0
SM1.3
Special memory bit:
Zero result
SM1.0
overflow
SM1.1
Negative result
SM1.2
The divisor is 0
SM1.3
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