參數(shù)資料
型號(hào): HMS81C43XX
廠商: Hynix Semiconductor Inc.
英文描述: CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER FOR TELEVISION
中文描述: CMOS單芯片8位單片機(jī)電視
文件頁數(shù): 26/100頁
文件大?。?/td> 1943K
代理商: HMS81C43XX
HMS81C43xx / GMS87C4060
26
November 2001 ver 1.2
8.4 Addressing Mode
The GMS800 series uses six addressing modes;
Register addressing
Immediate addressing
Direct page addressing
Absolute addressing
Indexed addressing
Register-indirect addressing
(1) Register Addressing
Register addressing accesses the A, X, Y, C and PSW.
(2) Immediate Addressing
#imm
In this mode, second byte (operand) is accessed as a data
immediately.
Example:
FE10: 0435
ADC
#35H
When G-flag is 1, then RAM address is defined by 16-bit
address which is composed of 8-bit direct page accessable
register (DPGR) and 8-bit immediate data.
Example: G=1, DPGR=0CH
F100: E45535
LDM
35H,#55H
(3) Direct Page Addressing
dp
In this mode, a address is specified within direct page.
Example; G=0
E551: C535
LDA
35H;A
RAM[35H]
(4) Absolute Addressing
!abs
Absolute addressing sets corresponding memory data to
Data , i.e. second byte(Operand I) of command becomes
lower level address and third byte (Operand II) becomes
upper level address.
With 3 bytes command, it is possible to access to whole
memory area.
ADC, AND, CMP, CMPX, CMPY, EOR, LDA, LDX,
LDY, OR, SBC, STA, STX, STY
Example;
F100: 0735F0 ADC!0F035H
;A
ROM[0F035H]
35
A+35H+C
A
04
MEMORY
0FE10
H
E4
55
0F100
H
0F101
H
data
55H
~
~
data
0C35
H
t
35
0F102
H
A
data
35
35
H
0E551
H
data
A
à
t
~
~
C5
0E550
H
07
35
0F100
H
0F101
H
~
~
data
0F035
H
P
F0
0F102
H
A
A+data+C
A
address: 0F035
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