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有一個關於NASM中整數到字符串轉換的問題。NASM - 整數到字符串
我的問題是如何連接數字,使輸出包含循環終止時的所有數字,而不是最後計算的數字?
例如, 1234 - > 1234 DIV 10 =剩餘4 =>緩衝= 「4」 123 - > 123 DIV 10 =剩餘3 =>緩衝= 「3」 等等
我的程序只是存儲計算的最後一位數字('1')並打印。
這裏是我的代碼文件:
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i;
char *str;
printf("Enter a number: ");
scanf ("%d", &i);
str=int2string(i);
printf("Number as string is: %s\n", str);
return 0;
}
%include "asm_io.inc"
segment .data
segment .bss
buffer db 20 ; buffer of size 8 bits (in reference to c file)
segment .text
global int2string
int2string:
enter 0,0 ; setup routine
pusha
mov esi, 0 ; set sign to 0
mov ebx, 0 ; set current remainder to 0
mov edi, 0 ; set the current digit in eax
mov eax, [ebp+8] ; eax contains input value of int2string
jmp placeValues
placeValues:
mov edx, 0 ; set remainder to 0
mov eax, eax ; redundancy ensures dividend is eax
mov ebx, 10 ; sets the divisor to value of 10
div ebx ; eax = eax/ebx
mov ebx, 48 ; set ebx to 48 for ASCII conversion
add ebx, edx ; add remainder to ebx for ASCII value
add dword[buffer], ebx ; store the number in the buffer
cmp eax, 0
jz return
jmp placeValues
return:
popa
mov eax, buffer ; move buffer value to eax
leave
ret
那麼+ int的數字計數不能超過10,那麼您可以爲10個字符分配空間,並在填充數字並返回數組的基數時遞增循環內的賦值索引? – 2012-02-05 05:56:11
完美運行,感謝您的快速響應 – user1074249 2012-02-05 06:00:48