參數(shù)資料
型號(hào): GMS81C5024-XXXPL
英文描述: MICROCONTROLLER|8-BIT|CMOS|LDCC|44PIN|PLASTIC
中文描述: 單片機(jī)| 8位|的CMOS | LDCC | 44PIN |塑料
文件頁數(shù): 35/93頁
文件大?。?/td> 853K
代理商: GMS81C5024-XXXPL
GMS81C1404/GMS81C1408
June. 2001 Ver 1.2
33
Y indexed direct page (8 bit offset)
dp+Y
This address value is the second byte (Operand) of com-
mand plus the data of Y-register, which assigns Memory in
Direct page.
This is same with above (2). Use Y register instead of X.
Y indexed absolute
!abs+Y
Sets the value of 16-bit absolute address plus Y-register
data as Memory. This addressing mode can specify mem-
ory in whole area.
Example; Y=55
H
D500FA
LDA
!0FA00H+Y
(6) Indirect Addressing
Direct page indirect
[dp]
Assigns data address to use for accomplishing command
which sets memory data(or pair memory) by Operand.
Also index can be used with Index register X,Y.
JMP, CALL
Example;
3F35
JMP
[35H]
X indexed indirect
[dp+X]
Processes memory data as Data, assigned by 16-bit pair
memory which is determined by pair data
[dp+X+1][dp+X] Operand plus X-register data in Direct
page.
ADC, AND, CMP, EOR, LDA, OR, SBC, STA
Example; X=10
H
1625
ADC
[25H+X]
D5
00
0F100
H
0F101
H
data
A
~
~
data
0FA55
H
0FA00H+55H=0FA55H
FA
0F102
H
0A
E3
35
H
36
H
jump to address 0E30A
H
~
~
35
0FA00
H
3F
0E30A
H
NEXT
~
~
05
E0
35
H
36
H
0E005
H
~
~
25
0FA00
H
16
0E005
H
data
~
~
A + data + C
A
25 + X(10) = 35
H
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