MC908AP16CFAE Datasheet, PDF (64/324 Pages) Freescale Semiconductor, Inc – Table of Contents

Central Processor Unit (CPU)
Table 4-1. Instruction Set Summary
Source
Form
Operation
Description
Effect on
CCR
VH I NZC
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
o
–
–
o
o
–
INH
IX1
IX
SP1
DIV
Divide
A ← (H:A)/(X)
H ← Remainder
– – – – o o 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
–
–
o
o
–
IX2
IX1
IX
SP1
SP2
INC opr
INCA
INCX
INC opr,X
INC ,X
INC opr,SP
Increment
M ← (M) + 1
A ← (A) + 1
X ← (X) + 1
M ← (M) + 1
M ← (M) + 1
M ← (M) + 1
DIR
INH
o
–
–
o
o
–
INH
IX1
IX
SP1
JMP opr
JMP opr
JMP opr,X
JMP opr,X
JMP ,X
Jump
PC ← Jump Address
DIR
EXT
– – – – – – IX2
IX1
IX
JSR opr
JSR opr
JSR opr,X
JSR opr,X
JSR ,X
Jump to Subroutine
PC ← (PC) + n (n = 1, 2, or 3)
Push (PCL); SP ← (SP) – 1
Push (PCH); SP ← (SP) – 1
PC ← Unconditional Address
DIR
EXT
– – – – – – IX2
IX1
IX
LDA #opr
LDA opr
LDA opr
LDA opr,X
LDA opr,X
LDA ,X
LDA opr,SP
LDA opr,SP
Load A from M
A ← (M)
IMM
DIR
EXT
0
–
–
o
o
–
IX2
IX1
IX
SP1
SP2
LDHX #opr
LDHX opr
Load H:X from M
H:X ← (M:M + 1)
0
–
–
o
o
–
IMM
DIR
3B
4B
5B
6B
7B
9E6B
dd rr
rr
rr
ff rr
rr
ff rr
5
3
3
5
4
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
3C dd 4
4C
1
5C
1
6C ff
4
7C
3
9E6C ff
5
BC dd 2
CC hh ll 3
DC ee ff 4
EC ff
3
FC
2
BD dd 4
CD hh ll 5
DD ee ff 6
ED ff
5
FD
4
A6 ii
2
B6 dd 3
C6 hh ll 4
D6 ee ff 4
E6 ff
3
F6
2
9EE6 ff
4
9ED6 ee ff 5
45 ii jj 3
55 dd 4
MC68HC908AP Family Data Sheet, Rev. 4
64
Freescale Semiconductor