MC908JB16DWE Datasheet, PDF (87/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

Central Processor Unit (CPU)
Table 6-1. Instruction Set Summary (Sheet 4 of 8)
Source
Form
Operation
Description
Effect on
CCR
VH I NZC
CMP #opr
CMP opr
CMP opr
CMP opr,X
CMP opr,X
CMP ,X
CMP opr,SP
CMP opr,SP
Compare A with M
(A) – (M)
IMM
DIR
EXT
↕
–
–↕
↕
↕
IX2
IX1
IX
SP1
SP2
COM opr
COMA
COMX
COM opr,X
COM ,X
COM opr,SP
Complement (One’s Complement)
M ← (M) = $FF – (M)
A ← (A) = $FF – (M)
X ← (X) = $FF – (M)
M ← (M) = $FF – (M)
M ← (M) = $FF – (M)
M ← (M) = $FF – (M)
DIR
INH
0 – –↕
↕
1
INH
IX1
IX
SP1
CPHX #opr
CPHX opr
Compare H:X with M
(H:X) – (M:M + 1)
↕
–
–↕
↕
↕
IMM
DIR
CPX #opr
CPX opr
CPX opr
CPX ,X
CPX opr,X
CPX opr,X
CPX opr,SP
CPX opr,SP
Compare X with M
(X) – (M)
IMM
DIR
EXT
↕
–
–↕
↕
↕
IX2
IX1
IX
SP1
SP2
DAA
Decimal Adjust A
(A)₁₀
U – – ↕ ↕ ↕ INH
DBNZ opr,rel
DBNZA rel
DBNZX rel
Decrement and Branch if Not Zero
DBNZ opr,X,rel
DBNZ X,rel
DBNZ opr,SP,rel
A ← (A) – 1 or M ← (M) – 1 or X ← (X) – 1
PC ← (PC) + 3 + rel ? (result) ≠ 0
DIR
PC ← (PC) + 2 + rel ? (result) ≠ 0
INH
PC ← (PC) + 2 + rel ? (result) ≠ 0 – – – – – – INH
PC ← (PC) + 3 + rel ? (result) ≠ 0
IX1
PC ← (PC) + 2 + rel ? (result) ≠ 0
IX
PC ← (PC) + 4 + rel ? (result) ≠ 0
SP1
DEC opr
DECA
DECX
DEC opr,X
DEC ,X
DEC opr,SP
Decrement
M ← (M) – 1
A ← (A) – 1
X ← (X) – 1
M ← (M) – 1
M ← (M) – 1
M ← (M) – 1
DIR
INH
↕
– –↕
↕
–
INH
IX1
IX
SP1
DIV
Divide
A ← (H:A)/(X)
H ← Remainder
– – – – ↕ ↕ INH
EOR #opr
EOR opr
EOR opr
EOR opr,X
EOR opr,X
EOR ,X
EOR opr,SP
EOR opr,SP
Exclusive OR M with A
A ← (A ⊕ M)
IMM
DIR
EXT
0 – –↕
↕
–
IX2
IX1
IX
SP1
SP2
A1 ii
2
B1 dd 3
C1 hh ll 4
D1 ee ff 4
E1 ff
3
F1
2
9EE1 ff
4
9ED1 ee ff 5
33 dd 4
43
1
53
1
63 ff
4
73
3
9E63 ff
5
65 ii ii+1 3
75 dd 4
A3 ii
2
B3 dd 3
C3 hh ll 4
D3 ee ff 4
E3 ff
3
F3
2
9EE3 ff
4
9ED3 ee ff 5
72
2
3B dd rr 5
4B rr
3
5B rr
3
6B ff rr 5
7B rr
4
9E6B ff rr 6
3A dd 4
4A
1
5A
1
6A ff
4
7A
3
9E6A ff
5
52
7
A8 ii
2
B8 dd 3
C8 hh ll 4
D8 ee ff 4
E8 ff
3
F8
2
9EE8 ff
4
9ED8 ee ff 5
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor
Central Processor Unit (CPU)
Technical Data
87