MC68HC908LB8_05 Datasheet, PDF (72/234 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Central Processor Unit (CPU)
7.7 Instruction Set Summary
Table 7-1 provides a summary of the M68HC08 instruction set.
Source
Form
ADC #opr
ADC opr
ADC opr
ADC opr,X
ADC opr,X
ADC ,X
ADC opr,SP
ADC opr,SP
ADD #opr
ADD opr
ADD opr
ADD opr,X
ADD opr,X
ADD ,X
ADD opr,SP
ADD opr,SP
AIS #opr
AIX #opr
AND #opr
AND opr
AND opr
AND opr,X
AND opr,X
AND ,X
AND opr,SP
AND opr,SP
ASL opr
ASLA
ASLX
ASL opr,X
ASL ,X
ASL opr,SP
ASR opr
ASRA
ASRX
ASR opr,X
ASR opr,X
ASR opr,SP
BCC rel
BCLR n, opr
BCS rel
BEQ rel
BGE opr
Table 7-1. Instruction Set Summary (Sheet 1 of 7)
Operation
Add with Carry
Add without Carry
Add Immediate Value (Signed) to SP
Add Immediate Value (Signed) to H:X
Logical AND
Arithmetic Shift Left
(Same as LSL)
Arithmetic Shift Right
Branch if Carry Bit Clear
Clear Bit n in M
Branch if Carry Bit Set (Same as BLO)
Branch if Equal
Branch if Greater Than or Equal To
(Signed Operands)
Description
A ← (A) + (M) + (C)
A ← (A) + (M)
SP ← (SP) + (16 « M)
H:X ← (H:X) + (16 « M)
A ← (A) & (M)
C
b7
0
b0
C
b7
b0
PC ← (PC) + 2 + rel ? (C) = 0
Mn ← 0
PC ← (PC) + 2 + rel ? (C) = 1
PC ← (PC) + 2 + rel ? (Z) = 1
PC ← (PC) + 2 + rel ? (N ⊕ V) = 0
Effect
on CCR
VH I NZC
IMM
DIR
EXT


–



IX2
IX1
IX
SP1
SP2
A9 ii
2
B9 dd 3
C9 hh ll 4
D9 ee ff 4
E9 ff
3
F9
2
9EE9 ff
4
9ED9 ee ff 5
IMM
DIR
EXT


–



IX2
IX1
IX
SP1
SP2
AB ii
2
BB dd 3
CB hh ll 4
DB ee ff 4
EB ff
3
FB
2
9EEB ff
4
9EDB ee ff 5
– – – – – – IMM
A7 ii
2
– – – – – – IMM
AF ii
2
IMM
DIR
EXT
0
–
–


–
IX2
IX1
IX
SP1
SP2
DIR
INH

–
–



INH
IX1
IX
SP1
DIR
INH

–
–



INH
IX1
IX
SP1
– – – – – – REL
A4 ii
2
B4 dd 3
C4 hh ll 4
D4 ee ff 4
E4 ff
3
F4
2
9EE4 ff
4
9ED4 ee ff 5
38 dd 4
48
1
58
1
68 ff
4
78
3
9E68 ff
5
37 dd 4
47
1
57
1
67 ff
4
77
3
9E67 ff
5
24 rr
3
DIR (b0) 11 dd 4
DIR (b1) 13 dd 4
DIR (b2) 15 dd 4
–
–
–
–
–
–
DIR (b3)
DIR (b4)
17
19
dd
dd
4
4
DIR (b5) 1B dd 4
DIR (b6) 1D dd 4
DIR (b7) 1F dd 4
– – – – – – REL
25 rr
3
– – – – – – REL
27 rr
3
– – – – – – REL
90 rr
3
MC68HC908LB8 Data Sheet, Rev. 1
72
Freescale Semiconductor