div | CS+ V4.01.00

div

Divides word.

[Syntax]

-	div reg1, reg2, reg3

-	div imm, reg2, reg3

The following can be specified for imm:

-	Absolute expression having a value of up to 32 bits

-	Relative expression

[Function]

-	Syntax "div reg1, reg2, reg3"

Divides the register value specified by the second operand by the register value specified by the first operand as a signed value and stores the quotient in the register specified by the second operand, and the remainder in the register specified by the third operand. If the same register is specified by the second and third operands, the remainder is stored in that register.

-	Syntax "div imm, reg2, reg3"

Divides the register value specified by the second operand by the value of the absolute or relative expression specified by the first operand as a signed value and stores the quotient in the register specified by the second operand, and the remainder in the register specified by the third operand. If the same register is specified by the second and third operands, the remainder is stored in that register.

[Description]

-	If the instruction is executed in syntax "div reg1, reg2, reg3", the assembler generates one div machine instruction.

-	If the instruction is executed in syntax "div imm, reg2, reg3", and the following expression is specified for imm, the assembler executes instruction expansion to generate one or more machine instructionsNote.

(a)

div     0, reg2, reg3

div     r0, reg2, reg3

(b)	Absolute expression having a value of other than 0 within the range of -16 to +15

div     imm5, reg2, reg3

mov     imm5, r1

div     r1, reg2, reg3

(c)	Absolute expression exceeding the range of -16 to +15, but within the range of -32,768 to +32,767

div     imm16, reg2, reg3

movea   imm16, r0, r1

div     r1, reg2, reg3

(d)	Absolute expression having a value exceeding the range of -32,768 to +32,767

If all the lower 16 bits of the value of imm are 0

div     imm, reg2, reg3

movhi   HIGHW(imm), r0, r1

div     r1, reg2, reg3

Else

div     imm, reg2, reg3

mov     imm, r1

div     r1, reg2, reg3

(e)	Relative expression having !label or %label, or that having $label for a label having a definition in the sdata/sbss-attribute section

div     !label, reg2, reg3

movea   !label, r0, r1

div     r1, reg2, reg3

div     #label, reg2, reg3

movea   #label, r0, r1

div     r1, reg2, reg3

div     $label, reg2, reg3

movea   $label, r0, r1

div     r1, reg2, reg3

(f)	Relative expression having #label or label, or that having $label for a label having no definition in the sdata/sbss-attribute section

div     #label, reg2, reg3

mov     #label, r1

div     r1, reg2, reg3

div     label, reg2, reg3

mov     label, r1

div     r1, reg2, reg3

div     $label, reg2, reg3

mov     $label, r1

div     r1, reg2, reg3

Note	The div machine instruction does not take an immediate value as an operand.

[Flag]

CY	---
OV	1 if Integer-Overflow occurs, 0 if not
S	1 if the result is negative, 0 if not
Z	1 if the result is 0, 0 if not
SAT	---