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Windows下将linux启动代码写入磁盘

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2007-02-01 20:11:21

1。write.c。此文件利用biosdisk可以写入软盘的任何指定扇区

#include<stdio.h>

#define SEC_MAX 1024

#define RETRY_MAX 5

#define TRACK_NUM 80 /*track number of a floppy disk*/

#define TR_SEC_NUM 18 /*sector number per track per head*/

main()

{

unsigned char buffer[512];

FILE *pFile=NULL;

int nReturn,nSec,nRetry; /*nSec is aready write sector number*/

unsigned char nSread,nTrack,nHead; /*where to write or read from floppy disk*/

if((pFile=fopen("sec3.exe","rb"))==NULL)

{

printf("\nfopen fail!");

return;

}

nSec=0;

nSread=6;

nTrack=0;

nHead=0;

while(nSec<SEC_MAX)

{

/*read sector data from file and if read error retry and then return*/

memset(buffer,0,512);

nRetry=0;

nReturn=0;

while(nReturn!=512)

{

fseek(pFile,0x200+512L*nSec,0); /*seek to where to read,there must be set long*/

nReturn=fread(buffer,1,512,pFile);

if(nRetry>RETRY_MAX) /*if error then return*/

{

if(nReturn>1)

{

;printf("\nRead file Error.Mybe get the end of file(sec=%d,nReturn=%x,nTrack=%x,nHead=%x,nSread=%x) !",nSec,nReturn,nTrack,nHead,nSread);

printf("\nRead file Error.Mybe get the end of file(sec=%d,nReturn=%x) !",nSec,nReturn);

nSec=SEC_MAX; /*get end of the file,so after write to disk,will return */

break;

}

else

{

printf("\nRead file Error.Mybe read error(sec=%d,nReturn=%x) !",nSec,nReturn);

fclose(pFile);

return;

}

}

nRetry++;

}

/*write data from buffer and if write error retry and then return*/

nRetry=0;

nReturn=1;

while(nReturn!=0)

{

nReturn=biosdisk(3, /*cmd=3,write*/

0, /*driver=0,A flopy disk*/

nHead, /*head*/

nTrack, /*track*/

nSread, /*setor*/

1,

buffer);

if(nRetry>RETRY_MAX) /*if error then return*/

{

printf("\nbiosdisk return:%d,head(%d),track(%d),sector(%d)",nReturn,nHead,nTrack,nSread);

fclose(pFile);

return;

}

nRetry++;

}

/*adjust the parameters*/

nSec++; /**/

if(++nSread>18)

{

nSread=1;

if(nHead==0) /*read current track on another head*/

{

nHead=1;

}

else /*nHead==1,read next track*/

{

nHead=0;

nTrack++;

}

}

}

fclose(pFile);

}

2。read.c.此文件利用biosdisk可以读软盘的任何指定扇区。

#include<stdio.h>

#define SEC_MAX 41

#define RETRY_MAX 5

#define TRACK_NUM 80 /*track number of a floppy disk*/

#define TR_SEC_NUM 18 /*sector number per track per head*/

main()

{

unsigned char buffer[512];

FILE *pFile=NULL;

int nReturn,nSec,nRetry; /*nSec is aready write sector number*/

unsigned char nSread,nTrack,nHead; /*where to write or read from floppy disk*/

if((pFile=fopen("sec3.bin","wb"))==NULL)

{

printf("\nfopen fail!");

return;

}

/*seek to head and write 0x200*/

fseek(pFile,0,0);

memset(buffer,0,512);

fwrite(buffer,1,512,pFile);

nSec=0;

nSread=6;

nTrack=0;

nHead=0;

while(nSec<SEC_MAX)

{

/*read data from disk and if write error retry and then return*/

memset(buffer,0,512);

nRetry=0;

nReturn=1;

while(nReturn!=0)

{

nReturn=biosdisk(2, /*cmd=3,read*/

0, /*driver=0,A flopy disk*/

nHead, /*head*/

nTrack, /*track*/

nSread, /*setor*/

1,

buffer);

if(nRetry>RETRY_MAX) /*if error then return*/

{

printf("\nbiosdisk return:%d,head(%d),track(%d),sector(%d)",nReturn,nHead,nTrack,nSread);

fclose(pFile);

return;

}

nRetry++;

}

/*read sector data from file and if read error retry and then return*/

nRetry=0;

nReturn=0;

while(nReturn!=512)

{

fseek(pFile,0x200+512*nSec,0); /*seek to where to read*/

nReturn=fwrite(buffer,1,512,pFile);

if(nRetry>RETRY_MAX) /*if error then return*/

{

if(nReturn>1)

{

printf("\nRead file Error.Mybe get the end of file(sec=%d,nReturn=%x,nTrack=%x,nHead=%x,nSread=%x) !",nSec,nReturn,nTrack,nHead,nSread);

nSec=SEC_MAX; /*get end of the file,so after write to disk,will return */

break;

}

else

{

printf("\nRead file Error.Mybe read error(sec=%d,nReturn=%x) !",nSec,nReturn);

fclose(pFile);

return;

}

}

nRetry++;

}

/*adjust the parameters*/

nSec++; /**/

if(++nSread>18)

{

nSread=1;

if(nHead==0) /*read current track on another head*/

{

nHead=1;

}

else /*nHead==1,read next track*/

{

nHead=0;

nTrack++;

}

}

}

fclose(pFile);

}

3。merge.c.此文件可以合并exe文件。编写原因是:如果想把head.asm中的main函数分出来成为一个单独的文件,那么我想把这个分出来的文件编译连接后于head.exe和为一体写入软盘,就需要这个程序将二者合并、写入软盘。

#include <stdio.h>

#include <stdlib.h>

#define RETRY_MAX 5

#define SEC_MAX 1024

main()

{

unsigned char buffer[512];

FILE *pFile3=NULL,*pFileM=NULL,*pFileB=NULL;

int nReturn,nRetry,nSec,nByte;

unsigned char bRun;

/*+++++++++++ first,copy code from sec3.exe to sec3.bin ++++++++++++*/

/*=======open two file-sec3.exe and sec3.bin=======*/

if((pFile3=fopen("sec3.exe","rb"))==NULL)

{

printf("\nfopen fail---file:sec3.exe!");

return;

}

if((pFileB=fopen("sec3.bin","wb+"))==NULL)

{

printf("\nfopen fail***file:sec3.bin!");

fclose(pFile3);

return;

}

/*=======copy code from sec3.exe to sec3.bin========*/

nSec=0;

bRun=1; /*bRun control the read loop*/

while(bRun)

{

/*read 512 data from file and if read error retry and then return*/

memset(buffer,0,512);

nRetry=0;

nReturn=0;

while(nReturn!=512)

{

fseek(pFile3,0x0000+512L*nSec,0); /*seek to where to read,and there 512L must be long*/

nReturn=fread(buffer,1,512,pFile3);

if(nRetry>RETRY_MAX) /*if error then return*/

{

printf("\nRead file(sec3.exe).Get the end of file(sec=%d,nReturn=%x)!",nSec,nReturn);

bRun=0; /*get end of the file,so after write to file sec3.exe,will return */

break;

}

nRetry++;

}

nByte=nReturn;

/*write 512 data to file and if write error retry and then return*/

nRetry=0;

nReturn=0;

while(nReturn!=nByte)

{

fseek(pFileB,0x0000+512L*nSec,0); /*seek to where to write,and there 512L is long*/

nReturn=fwrite(buffer,1,nByte,pFileB); /*will write 512B or mor less*/

if(nRetry>RETRY_MAX) /*if error then return*/

{

if(nReturn>1)

{

printf("\n**Write file Error.Mybe get the end of file(sec=%d,nReturn=%x)!",nSec,nReturn);

break;

}

else

{

printf("\n**File write error(sec=%d,nReturn=%x)!",nSec,nReturn);

fclose(pFile3);

fclose(pFileB);

return;

}

}

nRetry++;

}

nSec++;

}

/*close sec3.exe file*/

fclose(pFile3);

/*+++++++++++ secode,merge code from main.exe to sec3.bin ++++++++++++*/

/*=======open file-main.exe and sec3.bin=======*/

if((pFileM=fopen("main.exe","rb"))==NULL)

{

printf("\nfopen fail++++file:main.exe!");

fclose(pFileB);

return;

}

/*=======copy code from main.exe to sec3.bin========*/

nSec=0;

bRun=1; /*bRun control the read loop*/

while(bRun)

{

/*read 512 data from file and if read error retry and then return*/

memset(buffer,0,512);

nRetry=0;

nReturn=0;

while(nReturn!=512)

{

fseek(pFileM,0x7200+512L*nSec,0); /*seek to where to read*/

nReturn=fread(buffer,1,512,pFileM);

if(nRetry>RETRY_MAX) /*if error then return*/

{

printf("\nRead file(main.exe).Get the end of file(sec=%d,nReturn=%x)!",nSec,nReturn);

bRun=0; /*get end of the file,so after write to file sec3.exe,will break while */

break;

}

nRetry++;

}

nByte=nReturn;

/*write 512 data to file and if write error retry and then return*/

nRetry=0;

nReturn=0;

while(nReturn!=nByte)

{

fseek(pFileB,0x7200+512L*nSec,0); /*seek to where to write*/

nReturn=fwrite(buffer,1,nByte,pFileB); /*will write 512B or mor less*/

if(nRetry>RETRY_MAX) /*if error then return*/

{

if(nReturn>1)

{

printf("\n**Write file Error.Mybe get the end of file(sec=%d,nReturn=%x)!\n",nSec,nReturn);

break;

}

else

{

printf("\n**File write error(sec=%d,nReturn=%x)!",nSec,nReturn);

fclose(pFileB);

fclose(pFileM);

return;

}

}

nRetry++;

}

nSec++;

}

/*close main.exe file*/

fclose(pFileM);

/*delete and rename*/

fclose(pFileB);

system("del SEC3.EXE");

system("rename sec3.bin sec3.exe");

system("write3");

return;

}

好了,到此为止,linux的启动汇编代码就可以在windows下用tasm+tlink编译连接,用写入程序写入软盘来运行了。

1。write.c。此文件利用biosdisk可以写入软盘的任何指定扇区 #include<stdio.h> #define SEC_MAX 1024 #define RETRY_MAX 5 #define TRACK_NUM 80 /*track number of a floppy disk*/ #define TR_SEC_NUM 18 /*sector number per track per head*/ main() { unsigned char buffer[512]; FILE *pFile=NULL; int nReturn,nSec,nRetry; /*nSec is aready write sector number*/ unsigned char nSread,nTrack,nHead; /*where to write or read from floppy disk*/ if((pFile=fopen("sec3.exe","rb"))==NULL) { printf("\nfopen fail!"); return; } nSec=0; nSread=6; nTrack=0; nHead=0; while(nSec<SEC_MAX) { /*read sector data from file and if read error retry and then return*/ memset(buffer,0,512); nRetry=0; nReturn=0; while(nReturn!=512) { fseek(pFile,0x200+512L*nSec,0); /*seek to where to read,there must be set long*/ nReturn=fread(buffer,1,512,pFile); if(nRetry>RETRY_MAX) /*if error then return*/ { if(nReturn>1) { ;printf("\nRead file Error.Mybe get the end of file(sec=%d,nReturn=%x,nTrack=%x,nHead=%x,nSread=%x) !",nSec,nReturn,nTrack,nHead,nSread); printf("\nRead file Error.Mybe get the end of file(sec=%d,nReturn=%x) !",nSec,nReturn); nSec=SEC_MAX; /*get end of the file,so after write to disk,will return */ break; } else { printf("\nRead file Error.Mybe read error(sec=%d,nReturn=%x) !",nSec,nReturn); fclose(pFile); return; } } nRetry++; } /*write data from buffer and if write error retry and then return*/ nRetry=0; nReturn=1; while(nReturn!=0) { nReturn=biosdisk(3, /*cmd=3,write*/ 0, /*driver=0,A flopy disk*/ nHead, /*head*/ nTrack, /*track*/ nSread, /*setor*/ 1, buffer); if(nRetry>RETRY_MAX) /*if error then return*/ { printf("\nbiosdisk return:%d,head(%d),track(%d),sector(%d)",nReturn,nHead,nTrack,nSread); fclose(pFile); return; } nRetry++; } /*adjust the parameters*/ nSec++; /**/ if(++nSread>18) { nSread=1; if(nHead==0) /*read current track on another head*/ { nHead=1; } else /*nHead==1,read next track*/ { nHead=0; nTrack++; } } } fclose(pFile); } 2。read.c.此文件利用biosdisk可以读软盘的任何指定扇区。 #include<stdio.h> #define SEC_MAX 41 #define RETRY_MAX 5 #define TRACK_NUM 80 /*track number of a floppy disk*/ #define TR_SEC_NUM 18 /*sector number per track per head*/ main() { unsigned char buffer[512]; FILE *pFile=NULL; int nReturn,nSec,nRetry; /*nSec is aready write sector number*/ unsigned char nSread,nTrack,nHead; /*where to write or read from floppy disk*/ if((pFile=fopen("sec3.bin","wb"))==NULL) { printf("\nfopen fail!"); return; } /*seek to head and write 0x200*/ fseek(pFile,0,0); memset(buffer,0,512); fwrite(buffer,1,512,pFile); nSec=0; nSread=6; nTrack=0; nHead=0; while(nSec<SEC_MAX) { /*read data from disk and if write error retry and then return*/ memset(buffer,0,512); nRetry=0; nReturn=1; while(nReturn!=0) { nReturn=biosdisk(2, /*cmd=3,read*/ 0, /*driver=0,A flopy disk*/ nHead, /*head*/ nTrack, /*track*/ nSread, /*setor*/ 1, buffer); if(nRetry>RETRY_MAX) /*if error then return*/ { printf("\nbiosdisk return:%d,head(%d),track(%d),sector(%d)",nReturn,nHead,nTrack,nSread); fclose(pFile); return; } nRetry++; } /*read sector data from file and if read error retry and then return*/ nRetry=0; nReturn=0; while(nReturn!=512) { fseek(pFile,0x200+512*nSec,0); /*seek to where to read*/ nReturn=fwrite(buffer,1,512,pFile); if(nRetry>RETRY_MAX) /*if error then return*/ { if(nReturn>1) { printf("\nRead file Error.Mybe get the end of file(sec=%d,nReturn=%x,nTrack=%x,nHead=%x,nSread=%x) !",nSec,nReturn,nTrack,nHead,nSread); nSec=SEC_MAX; /*get end of the file,so after write to disk,will return */ break; } else { printf("\nRead file Error.Mybe read error(sec=%d,nReturn=%x) !",nSec,nReturn); fclose(pFile); return; } } nRetry++; } /*adjust the parameters*/ nSec++; /**/ if(++nSread>18) { nSread=1; if(nHead==0) /*read current track on another head*/ { nHead=1; } else /*nHead==1,read next track*/ { nHead=0; nTrack++; } } } fclose(pFile); } 3。merge.c.此文件可以合并exe文件。编写原因是:如果想把head.asm中的main函数分出来成为一个单独的文件,那么我想把这个分出来的文件编译连接后于head.exe和为一体写入软盘,就需要这个程序将二者合并、写入软盘。 #include <stdio.h> #include <stdlib.h> #define RETRY_MAX 5 #define SEC_MAX 1024 main() { unsigned char buffer[512]; FILE *pFile3=NULL,*pFileM=NULL,*pFileB=NULL; int nReturn,nRetry,nSec,nByte; unsigned char bRun; /*+++++++++++ first,copy code from sec3.exe to sec3.bin ++++++++++++*/ /*=======open two file-sec3.exe and sec3.bin=======*/ if((pFile3=fopen("sec3.exe","rb"))==NULL) { printf("\nfopen fail---file:sec3.exe!"); return; } if((pFileB=fopen("sec3.bin","wb+"))==NULL) { printf("\nfopen fail***file:sec3.bin!"); fclose(pFile3); return; } /*=======copy code from sec3.exe to sec3.bin========*/ nSec=0; bRun=1; /*bRun control the read loop*/ while(bRun) { /*read 512 data from file and if read error retry and then return*/ memset(buffer,0,512); nRetry=0; nReturn=0; while(nReturn!=512) { fseek(pFile3,0x0000+512L*nSec,0); /*seek to where to read,and there 512L must be long*/ nReturn=fread(buffer,1,512,pFile3); if(nRetry>RETRY_MAX) /*if error then return*/ { printf("\nRead file(sec3.exe).Get the end of file(sec=%d,nReturn=%x)!",nSec,nReturn); bRun=0; /*get end of the file,so after write to file sec3.exe,will return */ break; } nRetry++; } nByte=nReturn; /*write 512 data to file and if write error retry and then return*/ nRetry=0; nReturn=0; while(nReturn!=nByte) { fseek(pFileB,0x0000+512L*nSec,0); /*seek to where to write,and there 512L is long*/ nReturn=fwrite(buffer,1,nByte,pFileB); /*will write 512B or mor less*/ if(nRetry>RETRY_MAX) /*if error then return*/ { if(nReturn>1) { printf("\n**Write file Error.Mybe get the end of file(sec=%d,nReturn=%x)!",nSec,nReturn); break; } else { printf("\n**File write error(sec=%d,nReturn=%x)!",nSec,nReturn); fclose(pFile3); fclose(pFileB); return; } } nRetry++; } nSec++; } /*close sec3.exe file*/ fclose(pFile3); /*+++++++++++ secode,merge code from main.exe to sec3.bin ++++++++++++*/ /*=======open file-main.exe and sec3.bin=======*/ if((pFileM=fopen("main.exe","rb"))==NULL) { printf("\nfopen fail++++file:main.exe!"); fclose(pFileB); return; } /*=======copy code from main.exe to sec3.bin========*/ nSec=0; bRun=1; /*bRun control the read loop*/ while(bRun) { /*read 512 data from file and if read error retry and then return*/ memset(buffer,0,512); nRetry=0; nReturn=0; while(nReturn!=512) { fseek(pFileM,0x7200+512L*nSec,0); /*seek to where to read*/ nReturn=fread(buffer,1,512,pFileM); if(nRetry>RETRY_MAX) /*if error then return*/ { printf("\nRead file(main.exe).Get the end of file(sec=%d,nReturn=%x)!",nSec,nReturn); bRun=0; /*get end of the file,so after write to file sec3.exe,will break while */ break; } nRetry++; } nByte=nReturn; /*write 512 data to file and if write error retry and then return*/ nRetry=0; nReturn=0; while(nReturn!=nByte) { fseek(pFileB,0x7200+512L*nSec,0); /*seek to where to write*/ nReturn=fwrite(buffer,1,nByte,pFileB); /*will write 512B or mor less*/ if(nRetry>RETRY_MAX) /*if error then return*/ { if(nReturn>1) { printf("\n**Write file Error.Mybe get the end of file(sec=%d,nReturn=%x)!\n",nSec,nReturn); break; } else { printf("\n**File write error(sec=%d,nReturn=%x)!",nSec,nReturn); fclose(pFileB); fclose(pFileM); return; } } nRetry++; } nSec++; } /*close main.exe file*/ fclose(pFileM); /*delete and rename*/ fclose(pFileB); system("del SEC3.EXE"); system("rename sec3.bin sec3.exe"); system("write3"); return; } 好了,到此为止,linux的启动汇编代码就可以在windows下用tasm+tlink编译连接,用写入程序写入软盘来运行了。
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