参数资料
型号: MC68HC08AS20VFNR2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQCC52
封装: PLASTIC, LCC-52
文件页数: 22/96页
文件大小: 3243K
代理商: MC68HC08AS20VFNR2
3
MC68HC05E0
MOTOROLA
3-7
CPU CORE AND INSTRUCTION SET
Table 3-5 Read/modify/write instructions
Addressing modes
Inherent
(A)
Inherent
(X)
Direct
Indexed
(no
offset)
Indexed
(8-bit
offset)
Function
Mnemonic
Opcode
#Bytes
#Cyc
les
Opcode
#Bytes
#Cyc
les
Opcode
#Bytes
#Cyc
les
Opcode
#Bytes
#Cyc
les
Opcode
#Bytes
#Cyc
les
Increment
INC
4C
1
3
5C
1
3
3C
2
5
7C
1
5
6C
2
6
Decrement
DEC
4A
1
3
5A
1
3
3A
2
5
7A
1
5
6A
2
6
Clear
CLR
4F
1
3
5F
1
3
3F
2
5
7F
1
5
6F
2
6
Complement
COM
43
1
3
53
1
3
33
2
5
73
1
5
63
2
6
Negate (two’s complement)
NEG
40
1
3
50
1
3
30
2
5
70
1
5
60
2
6
Rotate left through carry
ROL
49
1
3
59
1
3
39
2
5
79
1
5
69
2
6
Rotate right through carry
ROR
46
1
3
56
1
3
36
2
5
76
1
5
66
2
6
Logical shift left
LSL
48
1
3
58
1
3
38
2
5
78
1
5
68
2
6
Logical shift right
LSR
44
1
3
54
1
3
34
2
5
74
1
5
64
2
6
Arithmetic shift right
ASR
47
1
3
57
1
3
37
2
5
77
1
5
67
2
6
Test for negative or zero
TST
4D
1
3
5D
1
3
3D
2
4
7D
1
4
6D
2
5
Multiply
MUL
42
1
11
Table 3-6 Control instructions
Inherent addressing mode
Function
Mnemonic
Opcode
# Bytes # Cycles
Transfer A to X
TAX
97
1
2
Transfer X to A
TXA
9F
1
2
Set carry bit
SEC
99
1
2
Clear carry bit
CLC
98
1
2
Set interrupt mask bit
SEI
9B
1
2
Clear interrupt mask bit
CLI
9A
1
2
Software interrupt
SWI
83
1
10
Return from subroutine
RTS
81
1
6
Return from interrupt
RTI
80
1
9
Reset stack pointer
RSP
9C
1
2
No-operation
NOP
9D
1
2
Stop
STOP
8E
1
2
Wait
WAIT
8F
1
2
29
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