Fujitsu FR81 Before execution of CALL instruction After branching

FR81 Family
162 FUJITSU MICROELECTRONICS LIMITED CM71-00105-1E
CHAPTER 7 DETAILED EXECUTION INSTRUCTIONS
7.29
●Execution Example
CALL:D label ; Bit pattern of the instruction: 1101 1000 1001 0000
LDI:8 #0, R2 ; Instruction placed in delay slot
…
label: ; CALL instruction address + 122H
The instruction placed in delay slot is executed before execution of the branch destination instruction. The
value R2 above will vary according to the specifications of the LDI:8 instruction placed in the delay slot.
PC
FF80 0122
FF80 0000
RP
FF80 0004
R2
PC
RP
R2
0000 0000
xxxx xxxx
xxxx xxxx
Before execution of CALL instruction After branching