FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E - Manual (Page 210)

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CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.89 CALL (Call Subroutine)
This is a branching instruction with no delay slot.
After storing the address of the next instruction in the return pointer (RP), a branch to
the address indicated by "Ri" occurs.
■
CALL (Call Subroutine)
Assembler format: CALL @Ri
Operation: PC + 2
→
RP
Ri
→
PC
Flag change:
N, Z, V, and C: Unchanged
Execution cycles: 2 cycles
Instruction format:
Example: CALL @R1
N Z V C
– – – –
MSB LSB
1 0 0 1 0 1 1 1 0 0 0 1 Ri
R1 F F F F F 8 0 0
8 0 0 0 F F F E
F F F F F 8 0 0
F F F F F 8 0 0 PC
8 0 0 1 0 0 0 0 RP
R1
PC
RP x x x x
Before execution After execution
x x x x
Instruction bit pattern : 1001 0111 0001 0001