Toshiba 6F3B0253 - Manual (Page 155)

6F3B0253
Basic Hardware and Function
153
7. Instructions
FUN 041 DIV Unsigned double/single division
Expression
Input
−
[ A+1
⋅
A DIV B
→
C ]
−
Output
Function
When the input is ON, the double-word data of A+1
⋅
A is divided by the data of B, and the quotient
is stored in C and the remainder in C+1. The data range of A+1
⋅
A is 0 to 4294967295, and the data
range of B and C is 0 to 65535.
If the quotient is greater than 65535 (overflow), the limit value 65535 is stored in C, 0 is stored in
C+1, and the instruction error flag (ERF = S051) is set to ON.
Execution condition
Input Operation Output ERF
OFF No execution OFF
−
ON Normal execution (B
≠
0) ON −
Overflow (B
≠
0) ON Set
No execution (B
=
0) OFF Set
Operand
Name Device Register Constant Index
X Y R S T. C. XW YW RW SW T C D I J K
A Dividend √ √ √ √ √ √ √ √
B Divisor √ √ √ √ √ √ √ √
C Quotient √ √ √ √ √ √
Example
When R010 is ON, the double-word data of D0201
⋅
D0200 is divided by the constant data
4000, and the quotient is stored in D1000 and the remainder is stored in D1001.
If the data of D0201
⋅
D0200 is 332257, the quotient 83 is stored in D1000 and the remainder
257 is stored in D1001.
D0201
⋅
D0200 332257
÷
D1000 83 (quotient)
Constant 4000 D1001 257 (remainder)
Note
•
If divisor (operand B) is 0, ERF (instruction error flag = S051) is set to ON.
The ERF (S051) can be reset to OFF by user program, e.g.
−
[ RST S051 ]
−
.
•
This instruction handles the register data as unsigned integer.