參數(shù)資料
型號(hào): AN1218
廠商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述: HC05 to HC08 Optimization
中文描述: 以HC08的優(yōu)化HC05
文件頁(yè)數(shù): 43/56頁(yè)
文件大?。?/td> 417K
代理商: AN1218
Application Note
Appendix E — New CPU08 MOV Instruction Examples
AN1218 Rev. 2
43
*****
Move contents of Indexed to Direct mem location, post inc
Xreg
* HC05 *
LDX #$80 ; X
$80
LDA ,X ;3,1 A
(X)
STA $90 ;4,2 ($90)
(A)
INCX ;3,1 X
X + 1
* HC08 *
LDX #$80 ; X
$80
MOV X+,$90 ;4,2 ($90)
(X)
; X
X + 1
* Total CPU05 cycles, bytes = 10,4
* Total CPU08 cycles, bytes = 4,2
***** Move Direct mem contents to Indexed location, post inc
Xreg
* HC05 *
LDX #$90 ; X
$90
LDA $80 ;3,2 A
($80)
STA ,X ;4,1 (X)
(A)
INCX ;3,1 X
X + 1
* HC08 *
LDX #$90 ; X
$90
MOV $80,X+ ;4,2 (X)
($80)
; X
X + 1
* Total CPU05 cycles, bytes = 10,4
* Total CPU08 cycles, bytes = 4,2
***** Initialize the reset vector
ORG $FFFE
DW START
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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