FUJITSU MB91F109 FR30 User Manual
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2.7 Instruction Overview
❍
Ri that is referenced by the JMP:D @Ri or CALL:D @Ri instruction is not affected even
when the instruction in the delay slot updates the Ri.
[Example]
❍
RP that is referenced by the RET:D instruction is not affected even when the instruction in
the delay slot updates the RP.
[Example]
❍
The flag that is referenced by the Bcc:D rel instruction is not affected by the instruction in
the delay slot.
[Example]
❍
When RP is referenced by the instruction in the delay slot of the CALL:D instruction, the
data updated by the CALL:D instruction is read.
[Example]
LDI:32
#Label,
R0
JMP:D
@R0
; Branches to Label.
LDI:8
#0,
R0
; Does not affect the branch destination
address.
:
RET:D
;
Branches to the address indicated by the RP that
is set previously.
MOV
R8,
RP
;
Does not affect the return operation.
:
ADD
#1,
R0
;
Changes the flag.
BC:D
Overflow
;
Branches according to the execution result of the
above instruction.
ANDCCR
#0
;
Updates the flag which is not referenced by the
above branch instruction.
:
CALL:D
Label
;
Updates RP and branches.
MOV
RP,
R0
;
Transfers the RP; the execution result of
the above CALL:D instruction.
: