![](http://datasheet.mmic.net.cn/30000/MC68HC08JK8MDW_datasheet_2369384/MC68HC08JK8MDW_56.png)
Central Processor Unit (CPU)
MC68HC908JL8/JK8 MC68HC08JL8/JK8 MC68HC908KL8 Data Sheet, Rev. 3.1
56
Freescale Semiconductor
PULH
Pull H from Stack
SP
← (SP + 1); Pull (H)
–– –––– INH
8A
2
PULX
Pull X from Stack
SP
← (SP + 1); Pull (X)
–– –––– INH
88
2
ROL opr
ROLA
ROLX
ROL opr,X
ROL ,X
ROL opr,SP
Rotate Left through Carry
––
DIR
INH
IX1
IX
SP1
39
49
59
69
79
9E69
dd
ff
4
1
4
3
5
ROR opr
RORA
RORX
ROR opr,X
ROR ,X
ROR opr,SP
Rotate Right through Carry
––
DIR
INH
IX1
IX
SP1
36
46
56
66
76
9E66
dd
ff
4
1
4
3
5
RSP
Reset Stack Pointer
SP
← $FF
– – –––– INH
9C
1
RTI
Return from Interrupt
SP
← (SP) + 1; Pull (CCR)
SP
← (SP) + 1; Pull (A)
SP
← (SP) + 1; Pull (X)
SP
← (SP) + 1; Pull (PCH)
SP
← (SP) + 1; Pull (PCL)
INH
80
7
RTS
Return from Subroutine
SP
← SP + 1; Pull (PCH)
SP
← SP + 1; Pull (PCL)
–– –––– INH
81
4
SBC #opr
SBC opr
SBC opr,X
SBC ,X
SBC opr,SP
Subtract with Carry
A
← (A) – (M) – (C)
––
IMM
DIR
EXT
IX2
IX1
IX
SP1
SP2
A2
B2
C2
D2
E2
F2
9EE2
9ED2
ii
dd
hh ll
ee ff
ff
ee ff
2
3
4
3
2
4
5
SEC
Set Carry Bit
C
← 1
– – –––1 INH
99
1
SEI
Set Interrupt Mask
I
← 1
– – 1––– INH
9B
2
STA opr
STA opr,X
STA ,X
STA opr,SP
Store A in M
M
← (A)
0 – –
–
DIR
EXT
IX2
IX1
IX
SP1
SP2
B7
C7
D7
E7
F7
9EE7
9ED7
dd
hh ll
ee ff
ff
ee ff
3
4
3
2
4
5
STHX opr
Store H:X in M
(M:M + 1)
← (H:X)
0 – –
– DIR
35
dd
4
STOP
Enable IRQ Pin; Stop Oscillator
I
← 0; Stop Oscillator
–– 0––– INH
8E
1
Table 4-1. Instruction Set Summary
Source
Form
Operation
Description
Effect on
CCR
Addre
s
Mode
Op
co
de
Operand
C
y
cl
es
VH I N Z C
C
b0
b7
b0
b7
C