FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E - Manual (Page 153)

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CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
Example: DIV0S R2
Example: Actual use MDL ÷ R2 = MDL ( q uotient) ... MDH (remainder), signed calculation
MDH
MDL
D1 D0 T
S CR S CR x x 0
D1 D0 T
1 1 0
R2 0 F F F F F F F
MDH
MDL
R2
F F F F F F F 0
F F F F F F F F
F F F F F F F 0
0 0 0 0 0 0 0 0
0 F F F F F F F
Before exec u tion After exec u tion
In s tr u ction b it p a ttern : 1001 0111 0100 0010
DIV0S R2
DIV1 R2
32 DIV1s are arranged
DIV1 R2
..
.
..
.
DIV1 R2
DIV2 R2
DIV3
DIV4S
MDH
MDL
D1 D0 T
S CR S CR x x 0
D1 D0 T
1 1 0
R2 0 1 2 3 4 5 6 7
MDH
MDL
R2
F F F F F F F F
F F F F F F F F
F E D C B A 9 8
x x x x x x x x
0 1 2 3 4 5 6 7
Before exec u tion After exec u tion