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如何將string轉換成hex

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发表于 2011-4-10 12:30 AM |只看该作者 |倒序浏览

本帖最后由狂天使于 2011-4-10 12:34 AM 编辑

各位高手,我想問下該如和將string轉換成hex？

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX 100
int main()
{
FILE *fp1,*fp2;
int row=0,count=0,start_address=0;
int locctr[MAX];
char label[MAX],mnemonic[MAX],operand[MAX],op_mnemonic[MAX],op_format[MAX],opcode[MAX];
char new_label[MAX][MAX],new_mnemonic[MAX][MAX],new_operand[MAX][MAX];
char new_op_menmonic[MAX][MAX],new_op_format[MAX][MAX],new_opcode[MAX][MAX];
fp1=fopen("source.txt","r"); //open the file
if(fp1==NULL) //If fp1 get NULL value mean cannot open the file
{
perror("Error Message"); //print out Error Message
}
else //if fp1 open the file successfuly
{
while(!feof(fp1)) //If fp1 not End of File then store the string into the array
{
fscanf(fp1,"%s%s%s",label,mnemonic,operand); //store the string into array
//copy the array to new array to indicate what row it is
strcpy(new_label[row],label);
strcpy(new_mnemonic[row],mnemonic);
strcpy(new_operand[row],operand);
row++; //Count row of the program
}
}
if(strcmp(new_mnemonic[count],"START")==0)
{
start_address=atoi(new_operand[count]); //convert string to integer
printf("%X",start_address);
}
else
printf("123");
row=0;
fp2=fopen("OPTAB.txt","r"); //open the file OPTAB
if(fp2==NULL) //If fp2 get NULL value mean cannot open the file
{
perror("Error Message"); //print out Error Message
}
else //if fp1 success open the file
{
while(!feof(fp2)) //If fp1 not End of File then store the string into the array
{
fscanf(fp2,"%s%s%s",op_mnemonic,op_format,opcode);
strcpy(new_op_menmonic[row],op_mnemonic);
strcpy(new_op_format[row],op_format);
strcpy(new_opcode[row],opcode);
// printf("%5s %10s %10s\n",new_op_menmonic[row],new_op_format[row],new_opcode[row]);
row++; //Count row of the program
}
}
system("pause");
return 0;
}

复制代码

主要是這裡。

if(strcmp(new_mnemonic[count],"START")==0)
{

   start_address=atoi(new_operand[count]);  //convert string to integer
   printf("%X",start_address);
}

以下是我的file
source.txt
COPY START 1000
FIRST STL RETADR
CLOOP JSUB RDREC
-          LDA          LENGTH
-          COMP ZERO
-          JEQ ENDFIL
-          JSUB WRREC
-          J CLOOP
ENDFIL    LDA EOF
-          STA BUFFER
-          LDA THREE
-          STA LENGTH
-          JSUB WRREC
-          LDL RETADR
-          RSUB -
EOF BYTE C’EOF’
THREE WORD 3
ZERO WORD 0
RETADR RESW 1
LENGTH RESW 1
BUFFER RESB 4096
RDREC       LDX ZERO
-                LDA ZERO
RLOOP       TD INPUT
-                JEQ RLOOP
-                RD INPUT
-                COMP ZERO
-             JEQ EXIT
-                STCH BUFFER,X
-             TIX MAXLEN
-             JLT RLOOP
EXIT    STX LENGTH
-          RSUB    -
INPUT    BYTE X’F1’
MAXLEN    WORD 4096
WRREC    LDX ZERO
WLOOP    TD       OUTPUT
-    JEQ WLOOP
-    LDCH BUFFER,X
-    WD OUTPUT
-    TIX LENGTH
-    JLT WLOOP
-    RSUB -
OUTPUT BYTE X’05’
- END FIRST

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