FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E - Manual (Page 160)

136
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.42 DIV3 (Correction when Remainder is 0)
This instruction is used in signed division. It should be used in combinations such as
DIV0S, DIV1 x 32, DIV2, DIV3 and DIV4S.
■
DIV3 (Correction when Remainder is 0)
Assembler format: DIV3
Operation: if (Z = = 1) {
MDL + 1
→
MDL
}
Flag change:
N, Z, V, and C: Unchanged
Execution cycles: 1 cycle
Instruction format:
Example: DIV3
N Z V C
– – – –
MSB LSB
1 0 0 1 1 1 1 1 0 1 1 0 0 0 0 0
MDH
MDL
D1 D0 T
S CR S CR
D1 D0 T
0 0 0 0 0 0
R2 0 0 F F F F F F
MDH
MDL
R2
0 0 0 0 0 0 1 0
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 1 0 0 0 1 0 0
Before exec u tion After exec u tion
In s tr u ction b it p a ttern : 1001 1111 0110 0000