Fujitsu CM71-00101-5E User Manual
130
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.39
DIV0U (Initial Setting Up for Unsigned Division)
This command is used for unsigned division in which the multiplication/division
register (MDL) contains the dividend and the "Ri" the divisor, with the quotient stored in
the "MDL" register and the remainder in the multiplication/division register (MDH).
The "MDH" and bits "D1" and "D0" are cleared to "0".
To execute unsigned division, the instructions are used in combinations such as DIV0U
and DIV1 x 32
register (MDL) contains the dividend and the "Ri" the divisor, with the quotient stored in
the "MDL" register and the remainder in the multiplication/division register (MDH).
The "MDH" and bits "D1" and "D0" are cleared to "0".
To execute unsigned division, the instructions are used in combinations such as DIV0U
and DIV1 x 32
■
DIV0U (Initial Setting Up for Unsigned Division)
Assembler format:
DIV0U Ri
Operation:
0
→
D0
0
→
D1
0
→
MDH
Flag change:
N, Z, V, and C: Unchanged
Execution cycles:
1 cycle
Instruction format:
N
Z
V
C
–
–
–
–
MSB
LSB
1
0
0
1
0
1
1
1
0
1
0
1
Ri