FUJITSU FR family 32-bit microcontroller instruction manuel CM71-00101-5E - Manual (Page 224)

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CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
Example: CALL : D @R1
LDI : 8 #1, R1
; Instruction placed in delay slot
The instruction placed in the delay slot will be executed before execution of the branch destination
instruction.
The value "R1" above will vary according to the specifications of the "LDI:8" instruction placed in
the delay slot.
...
PC F F F F F 8 0 0 8 0 0 0 F F F E
F F F F F 8 0 0
RP 8 0 0 1 0 0 0 2
R1
PC
RP
R1 0 0 0 0 0 0 0 1
x x x x x x x x
Before execution of "CALL" instruction After branching
Instruction bit pattern : 1001 1111 0001 0001