This manual describes SAMSUNG s S3C2410X 16/32-bit RISC microprocessor. This product is designed to
provide hand-held devices and general applications with cost-effective, low-power, and high-performance microcontroller
solution in small die size. To reduce total system cost, the S3C2410X includes the following
components separate 16KB Instruction and 16KB Data Cache, MMU to handle virtual memory management,
LCD Controller (STN & TFT), NAND Flash Boot Loader, System Manager (chip select logic and SDRAM
Controller), 3-ch UART, 4-ch DMA, 4-ch Timers with PWM, I/O Ports, RTC, 8-ch 10-bit ADC and Touch Screen
Interface, IIC-BUS Interface, IIS-BUS Interface, USB Host, USB Device, SD Host & Multi-Media Card Interface,
2-ch SPI and PLL for clock generation.
標簽：
This
microprocessor
describes
S3C2410X
上傳時間：
2014-01-11
上傳用戶：shizhanincc
DATAS SEGMENT
w dw 0
keybuf db 255
db 0
db 255 dup(0) ;定義鍵盤輸入需要的緩沖區
DATAS ENDS
STACKS SEGMENT
db 200 dup(?)
STACKS ENDS
CODES SEGMENT
ASSUME CS:CODES,DS:DATAS,SS:STACKS
START:
MOV AX,DATAS
MOV DS,AX
mov dx,offset keybuf ;用0a號功能，輸入一個字符串
mov ah,0ah ;用回車結束
int 21h
mov dl,0ah ;再進行換行，以便在下一行顯示轉換后的字符串
mov ah,2
int 21h
; push ax
; push dx
; mov dl,cl
; mov ah,02
; int 21h
; pop dx
; pop ax
mov bx,offset keybuf+1 ;取出字符串的字符個數，作為循環的次數
mov cl,[bx]
mov ch,0
mov ax,0
again:
inc bx
mov ax,[w]
push bx
mov bx,16
mul bx
pop bx ;是小寫字母，則轉換為大寫字母
mov [w],ax
mov dl,[bx] ;取出一個字符，
cmp dl,'9'
jbe lab1
cmp dl,'F'
jbe lab2
sub dl,32
lab2: sub dl ,07h
lab1: sub dl,30h
add [w],dx
loop again
mov ax,[w]
mov bx,-1
push bx
mov bx,10
lab3 :mov dx,0
div bx
push dx
cmp ax,0
jnz lab3
lab5: pop dx
cmp dx,-1
jz lab4
add dl,30h
mov ah,02
int 21h
jmp lab5 ;循環，處理完整個字符串
lab4: MOV AH,4CH
INT 21H
CODES ENDS
END START
標簽：
匯編
上傳時間：
2015-04-02
上傳用戶：wcc0310
