FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E - Manual (Page 161)

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CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.43 DIV4S (Correction Answer for Signed Division)
This instruction is used in signed division. It should be used in combinations such as
DIV0S, DIV1 x 32, DIV2, DIV3 and DIV4S.
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DIV4S (Correction Answer for Signed Division)
Assembler format: DIV4S
Operation: if (D1 = = 1) {
0 – MDL
→
MDL
}
Flag change:
N, Z, V, and C: Unchanged
Execution cycles: 1 cycle
Instruction format:
Example: DIV4S
N Z V C
– – – –
MSB LSB
1 0 0 1 1 1 1 1 0 1 1 1 0 0 0 0
MDH
MDL
D1 D0 T
S CR S CR
D1 D0 T
1 1 0 1 1 0
R2 0 0 F F F F F F
MDH
MDL
R2
F F F F F F F 1
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 F
0 0 0 0 0 0 0 0
0 0 F F F F F F
N Z V C
CCR CCR
N Z V C
0 0 0 0 0 0 0 0
Before exec u tion After exec u tion
In s tr u ction b it p a ttern : 1001 1111 0111 0000