127 lines
2.7 KiB
C++
127 lines
2.7 KiB
C++
#include <stdio.h>
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#include <conio.h>
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#include <dos.h>
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#include <stdlib.h>
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#include <bios.h>
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// <20>®¬¥à ä®à¬ â¨à㥬®© ¤®à®¦ª¨
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#define TRK 20
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// Š®¤ à §¬¥à ᥪâ®à - 512 ¡ ©â
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#define SEC_SIZE 2
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typedef struct _DPT_
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{
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unsigned char srt_hut;
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unsigned char dma_hlt;
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unsigned char motor_w;
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unsigned char sec_size;
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unsigned char eot;
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unsigned char gap_rw;
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unsigned char dtl;
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unsigned char gap_f;
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unsigned char fill_char;
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unsigned char hst;
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unsigned char mot_start;
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} DPT;
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DPT far *get_dpt(void);
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union REGS inregs, outregs;
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char diskbuf[512];
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int main(void)
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{
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struct diskinfo_t di;
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unsigned status;
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unsigned char old_sec_size,
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old_fill_char, old_eot;
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int i, j;
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DPT far *dpt_ptr;
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printf("\n<EFBFBD>à®£à ¬¬ ã¨ç⮦¨â ᮤ¥à¦¨¬®¥"
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"\n20-© ¤®à®¦ª¨ ¤¨áª €:."
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"\n†¥« ¥â¥ ¯à®¤®«¦¨âì? (Y,N)\n");
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i = getch();
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if((i != 'y') && (i != 'Y'))
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return(-1);
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// <20>®«ãç ¥¬ ¤à¥á â ¡«¨æë ¯ à ¬¥â஢ ¤¨áª¥âë
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dpt_ptr = get_dpt();
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// ‘®åà 塞 áâ àë¥ § ç¥¨ï ¨§ â ¡«¨æë ¯ à ¬¥â஢
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old_sec_size = dpt_ptr->sec_size;
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old_fill_char = dpt_ptr->fill_char;
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old_eot = dpt_ptr->eot;
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// “áâ ¢«¨¢ ¥¬ ¢ â ¡«¨æ¥ ¯ à ¬¥â஢ ¤¨áª¥âë
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// ª®¤ à §¬¥à ᥪâ®à , ᨬ¢®« § ¯®«¥¨ï ¯à¨
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// ä®à¬ â¨à®¢ ¨¨, ª®«¨ç¥á⢮ ᥪâ®à®¢ ¤®à®¦ª¥
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dpt_ptr->sec_size = SEC_SIZE;
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dpt_ptr->fill_char = 0xf6;
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dpt_ptr->eot = 18;
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// “áâ ¢«¨¢ ¥¬ ⨯ ¤¨áª
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inregs.h.ah = 0x17;
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inregs.h.al = 3;
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inregs.h.dl = 0;
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int86(0x13, &inregs, &outregs);
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// “áâ ¢«¨¢ ¥¬ á।㠤«ï ä®à¬ â¨à®¢ ¨ï
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inregs.h.ah = 0x18;
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inregs.h.ch = TRK;
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inregs.h.cl = dpt_ptr->eot;
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inregs.h.dl = 0;
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int86(0x13, &inregs, &outregs);
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// <20>®¤£®â ¢«¨¢ ¥¬ ¯ à ¬¥âàë
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// ¤«ï äãªæ¨¨ ä®à¬ â¨à®¢ ¨ï
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di.drive = 0;
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di.head = 0;
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di.track = TRK;
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di.sector = 1;
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di.nsectors = 18;
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di.buffer = diskbuf;
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// <20>®¤£®â ¢«¨¢ ¥¬ ¡ãä¥à ä®à¬ â ¤«ï 18 ᥪâ®à®¢
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// ˆá¯®«ì§ã¥¬ ®¡à âë© ¯®à冷ª à ᯮ«®¦¥¨ï ᥪâ®à®¢
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// ¤®à®¦ª¥
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for(i=0, j=18; j>0; i += 4, j--)
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{
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diskbuf[i] = TRK;
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diskbuf[i+1] = 0;
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diskbuf[i+2] = j;
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diskbuf[i+3] = SEC_SIZE;
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}
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// ‚ë§ë¢ ¥¬ äãªæ¨î ä®à¬ â¨à®¢ ¨ï ¤®à®¦ª¨
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status = _bios_disk(_DISK_FORMAT, &di) >> 8;
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printf("\n”®à¬ â¨à®¢ ¨¥ § ¢¥à訫®áì á ª®¤®¬: %d",
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status);
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// ‚®ááâ ¢«¨¢ ¥¬ áâ àë¥ § ç¥¨ï ¢
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// â ¡«¨æ¥ ¯ à ¬¥â஢ ¤¨áª¥âë
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dpt_ptr->sec_size = old_sec_size;
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dpt_ptr->fill_char = old_fill_char;
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dpt_ptr->eot = old_eot;
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return(0);
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}
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/**
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* get_dpt
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*
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* ‚ëç¨á«¨âì ¤à¥á â ¡«¨æë ¯ à ¬¥â஢ ¤¨áª¥âë
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*
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* ”ãªæ¨ï ¢®§¢à é ¥â 㪠§ ⥫ì â ¡«¨æã
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* ¯ à ¬¥â஢ ¤¨áª¥âë
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*
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**/
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DPT far *get_dpt(void)
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{
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void far * far *ptr;
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ptr = (void far * far *)MK_FP(0x0, 0x78);
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return(DPT far*)(*ptr);
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}
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