1. Division operation DIV/DIVW/DIVD

1.1. Instruction description

The instruction (DIV) divides two 16 bit integers and produces a result of * * 32-bit * , where the lower 16 bits store the quotient and the upper 16 bits store the remainder*

The instruction (DIVW) divides two 16 bit integers and produces a 16 bit quotient, with the remainder omitted.

The instruction (DIVD) divides two 32-bit integers and produces a 32-bit quotient.

Related registers	Description
M8169	Operation overflow.
M8170	The result of the operation is negative.
M8171	The result of the operation is 0.
M8172	The divisor is zero.

1.2. The valid operands of the instruction

1.2.1. Single word division and remainder instruction(DIV)

Input/Output	Data Type	operand	Description
IN1	16 bit integer	D/CV/TV/AI/AO/K/H/V/Z/FD, bit composite word (X/Y/M/C/T/S), local variable (LW)	Input 1
IN2	16 bit integer	D/CV/TV/AI/AO/K/H/V/Z/FD, bit composite word (X/Y/M/C/T/S), local variable (LW)	Input 2
OUT	32-bit integer	D/CV, bit composite word (Y/M/C/T/S), local variable (LD)	output

1.2.2. single word instruction(DIVW)

Input/Output	Data Type	operand	Description
IN1	16 bit integer	D/CV/TV/AI/AO/K/H/V/Z/FD, bit composite word (X/Y/M/C/T/S), local variable (LW)	Input 1
IN2	16 bit integer	D/CV/TV/AI/AO/K/H/V/Z/FD, bit composite word (X/Y/M/C/T/S), local variable (LW)	Input 2
OUT	16 bit integer	D/CV/TV/AO/V/Z, bit composite word (Y/M/C/T/S), local variable (LW)	output

1.2.3. Double word instruction(DIVD)

Input/Output	Data Type	operand	Description
IN1	32-bit integer	D/CV/K/H/FD, bit composite word (X/Y/M/C/T/S), local variable (LD)	Input 1
IN2	32-bit integer	D/CV/K/H/FD, bit composite word (X/Y/M/C/T/S), local variable (LD)	Input 2
OUT	32-bit integer	D/CV, bit composite word (Y/M/C/T/S), local variable (LD)	output

1.3. Example

command table:

NETWORK 000

LD X000

DIV D0 D1 D2 // D0 ÷ D1 = D2D3 D2 storage integer, D3 storage remainder

图1 DIV