MC908AP16CFAE Datasheet, PDF (63/324 Pages) Freescale Semiconductor, Inc – Table of Contents

Table 4-1. Instruction Set Summary
Source
Form
Operation
Description
Effect on
CCR
VH I NZC
BSR rel
Branch to Subroutine
PC ← (PC) + 2; push (PCL)
SP ← (SP) – 1; push (PCH)
SP ← (SP) – 1
PC ← (PC) + rel
– – – – – – REL
CBEQ opr,rel
CBEQA #opr,rel
CBEQX #opr,rel
CBEQ opr,X+,rel
Compare and Branch if Equal
CBEQ X+,rel
CBEQ opr,SP,rel
PC ← (PC) + 3 + rel ? (A) – (M) = $00
DIR
PC ← (PC) + 3 + rel ? (A) – (M) = $00
IMM
PC ← (PC) + 3 + rel ? (X) – (M) = $00
PC ← (PC) + 3 + rel ? (A) – (M) = $00
–
–
–
–
–
–
IMM
IX1+
PC ← (PC) + 2 + rel ? (A) – (M) = $00
IX+
PC ← (PC) + 4 + rel ? (A) – (M) = $00
SP1
CLC
Clear Carry Bit
C←0
– – – – – 0 INH
CLI
Clear Interrupt Mask
I←0
– – 0 – – – INH
CLR opr
CLRA
CLRX
CLRH
CLR opr,X
CLR ,X
CLR opr,SP
Clear
M ← $00
A ← $00
X ← $00
H ← $00
M ← $00
M ← $00
M ← $00
DIR
INH
INH
0 – – 0 1 – INH
IX1
IX
SP1
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
o
–
–
o
o
o
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
–
–
o
o
1
INH
IX1
IX
SP1
CPHX #opr
CPHX opr
Compare H:X with M
(H:X) – (M:M + 1)
o
–
–
o
o
o
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
o
–
–
o
o
o
IX2
IX1
IX
SP1
SP2
DAA
Decimal Adjust A
(A)₁₀
U – – o o o INH
Opcode Map
AD rr
4
31 dd rr 5
41 ii rr 4
51 ii rr 4
61 ff rr 5
71 rr
4
9E61 ff rr 6
98
1
9A
2
3F dd 3
4F
1
5F
1
8C
1
6F ff
3
7F
2
9E6F ff
4
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
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor
63