Abov MC97F6108A - Table 64. Instruction Table: Branching

MC97F6108A User’s manual Appendix
253
Table 64. Instruction Table: Branching
Branching
Mnemonic
Description
Bytes
Cycles
Hex code
ACALL addr 11
Absolute jump to subroutine
2
2
11→F1
LCALL addr 16
Long jump to subroutine
3
2
12
RET
Return from subroutine
1
2
22
RETI
Return from interrupt
1
2
32
AJMP addr 11
Absolute jump unconditional
2
2
01→E1
LJMP addr 16
Long jump unconditional
3
2
02
SJMP rel
Short jump (relative address)
2
2
80
JC rel
Jump on carry = 1
2
2
40
JNC rel
Jump on carry = 0
2
2
50
JB bit,rel
Jump on direct bit = 1
3
2
20
JNB bit,rel
Jump on direct bit = 0
3
2
30
JBC bit,rel
Jump on direct bit = 1 and clear
3
2
10
JMP @A+DPTR
Jump indirect relative DPTR
1
2
73
JZ rel
Jump on accumulator = 0
2
2
60
JNZ rel
Jump on accumulator ≠0
2
2
70
CJNE A,dir,rel
Compare A,direct jne relative
3
2
B5
CJNE A,#d,rel
Compare A,immediate jne relative
3
2
B4
CJNE Rn,#d,rel
Compare register, immediate jne relative
3
2
B8-BF
CJNE @Ri,#d,rel
Compare indirect, immediate jne relative
3
2
B6-B7
DJNZ Rn,rel
Decrement register, jnz relative
2
2
D8-DF
DJNZ dir,rel
Decrement direct byte, jnz relative
3
2
D5