Instructions fun 039 u ∗ unsigned multiplication – Toshiba 6F3B0253 User Manual
Page 153
6F3B0253
Basic Hardware and Function
151
7. Instructions
FUN 039
U
∗
Unsigned multiplication
Expression
Input
−
[ A U
∗
B
→
C+1
⋅
C ]
−
Output
Function
When the input is ON, the unsigned data of A and B are multiplied, and the result is stored in
double-length register C+1
⋅
C. The data range of A and B is 0 to 65535 (unsigned 16-bit data)
Execution condition
Input
Operation
Output
OFF
No execution
OFF
ON
Execution
ON
Operand
Name
Device
Register
Constant Index
X
Y
R
S
T.
C. XW YW RW SW T
C
D
I
J
K
A Multiplicand
√
√
√
√
√
√
√
√
√
√
√
√
B Multiplier
√
√
√
√
√
√
√
√
√
√
√
√
C Product
√
√
√
√
√
√
√
√
√
Example
When R010 is ON, the data of D0050 is multiplied by the data of RW05, and the result is
stored in double-length register D0101
⋅
D0100 (upper 16-bit in D0101 and lower 16-bit in
D0100).
If the data of D0050 is 52500 and the data of RW05 is 30, the result 1575000 is stored in
D0101
⋅
D0100.
D0050
52500
×
D0101
⋅
D0100
1575000
RW05
30
Note
•
This instruction handles the register data as unsigned integer.