Div3 (Correction When Remainder Is 0) - Fujitsu FR Family Instruction Manual

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) {
}
Flag change:
N, Z, V, and C: Unchanged
Execution cycles: 1 cycle
Instruction format:
Example: DIV3
136
MDL + 1 → MDL
N Z V C
– – – –
MSB
1 0 0 1
Instruction bit pattern : 1001 1111 0110 0000
R2
0 0 F F F F F F
MDH
0 0 0 0 0 0 0 0
MDL
0 0 0 0 0 0 0 F
D1 D0 T
SCR
0 0 0
N Z V C
CCR 0 1 0 0
Before execution
1 1 1 1 0 1
LSB
1 0 0 0 0 0
R2
0 0 F F F F F F
MDH
0 0 0 0 0 0 0 0
MDL
0 0 0 0 0 0 1 0
D1 D0 T
SCR
N Z V C
CCR 0 1 0 0
After execution
0 0 0