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184
study/hardware/Floppy/floppy/FMT81TRK.CPP
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184
study/hardware/Floppy/floppy/FMT81TRK.CPP
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#include <dos.h>
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#include <stdio.h>
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#include <conio.h>
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#include <malloc.h>
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#include <errno.h>
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typedef struct _EBPB_
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{
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unsigned sectsize;
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char clustsize;
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unsigned ressecs;
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char fatcnt;
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unsigned rootsize;
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unsigned totsecs;
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char media;
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unsigned fatsize;
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unsigned seccnt;
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unsigned headcnt;
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unsigned hiddensec_low;
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unsigned hiddensec_hi;
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unsigned long drvsecs;
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} EBPB;
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typedef struct _TRK_LY_
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{
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unsigned no;
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unsigned size;
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} TRK_LY;
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typedef struct _DPB_
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{
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char spec;
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char devtype;
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unsigned devattr;
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unsigned numofcyl;
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char media_type;
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EBPB bpb;
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char reserved[6];
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unsigned trkcnt;
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TRK_LY trk[100];
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} DPB;
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typedef struct _DPB_FORMAT_
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{
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char spec;
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unsigned head;
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unsigned track;
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} DPB_FORMAT;
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int main(void)
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{
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union REGS reg;
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struct SREGS segreg;
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DPB far *dbp;
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DPB_FORMAT far *dbp_f;
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int sectors, i;
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printf("\n<EFBFBD>ணࠬ<EFBFBD><EFBFBD> 㭨<>⮦<EFBFBD><E2AEA6> ᮤ<>ন<EFBFBD><E0A6A8><EFBFBD>"
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"\n81-<2D> <20><><EFBFBD><E0AEA6> <20><>᪠ <20>:."
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"\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>த<EFBFBD><E0AEA4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>? (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><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC> <20><><EFBFBD>ன<EFBFBD>⢠
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dbp = (DPB far*)farmalloc(sizeof(DPB));
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// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC> <20><><EFBFBD>ன<EFBFBD>⢠,
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20>ᯮ<EFBFBD>짮<EFBFBD><ECA7AE><EFBFBD> <20><><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0><EFBFBD><E0AEA2><EFBFBD><EFBFBD>
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dbp_f = (DPB_FORMAT far*)
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farmalloc(sizeof(DPB_FORMAT));
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if(dbp == NULL || dbp_f == NULL)
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{
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printf("\n<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
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return(-1);
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}
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// <20><><EFBFBD><EFBFBD>砥<EFBFBD> ⥪<>騥 <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> <20><>᪠ <20>:
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dbp->spec = 0;
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reg.x.ax = 0x440d;
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reg.h.bl = 1;
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reg.x.cx = 0x0860;
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reg.x.dx = FP_OFF(dbp);
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segreg.ds = FP_SEG(dbp);
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intdosx(®, ®, &segreg);
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if(reg.x.cflag != 0)
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{
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printf("\n<EFBFBD>訡<EFBFBD><EFBFBD>: %d", reg.x.ax);
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return(-1);
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塞 <20><><EFBFBD><EFBFBD> <20><>ଥ<EFBFBD> <20><><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0><EFBFBD><E0AEA2><EFBFBD><EFBFBD>
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dbp->spec = 5;
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// <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><> BPB <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ ᥪ<><E1A5AA> <20><> <20><><EFBFBD><E0AEA6>
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sectors = dbp->bpb.seccnt;
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// <20><><EFBFBD><EFBFBD><EFBFBD>⠢<EFBFBD><E2A0A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⠡<><E2A0A1><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD> <20><><EFBFBD><E0AEA6>
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// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⢮ ᥪ<><E1A5AA> <20><> <20><><EFBFBD><E0AEA6>
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dbp->trkcnt = sectors;
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// <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ᥪ<><E1A5AA><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><E0AEA6> <20> ⠡<><E2A0A1><EFBFBD><EFBFBD>
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// <20><><EFBFBD><EFBFBD><EFBFBD>뢠<EFBFBD><EBA2A0> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20> ࠧ<><E0A0A7><EFBFBD>.
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for(i = 0; i < sectors; i++)
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{
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dbp->trk[i].no = i+1;
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dbp->trk[i].size = 512;
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}
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// <20><>⠭<EFBFBD><E2A0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC><EFBFBD><EFBFBD> <20><><EFBFBD> <20><>᪠ <20>:
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reg.x.ax = 0x440d;
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reg.h.bl = 1;
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reg.x.cx = 0x0840;
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reg.x.dx = FP_OFF(dbp);
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segreg.ds = FP_SEG(dbp);
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intdosx(®, ®, &segreg);
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if(reg.x.cflag != 0)
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{
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printf("\n<EFBFBD>訡<EFBFBD><EFBFBD>: %d", reg.x.ax);
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return(-1);
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}
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// <20><>⮢<EFBFBD><E2AEA2> <20><><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC> <20><><EFBFBD>ன<EFBFBD>⢠,
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>㤥<EFBFBD> <20>ᯮ<EFBFBD>짮<EFBFBD><ECA7AE><EFBFBD> <20><><EFBFBD> <20>맮<EFBFBD><EBA7AE>
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// <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20><EFBFBD>ન <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD><E0ACA0><EFBFBD><E0AEA2><EFBFBD><EFBFBD>
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// <20><><EFBFBD><E0AEA6>
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dbp_f->spec = 1;
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dbp_f->head = 0;
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dbp_f->track = 81;
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reg.x.ax = 0x440d;
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reg.h.bl = 1;
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reg.x.cx = 0x0842;
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reg.x.dx = FP_OFF(dbp_f);
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segreg.ds = FP_SEG(dbp_f);
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intdosx(®, ®, &segreg);
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if(reg.x.cflag != 0)
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{
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printf("\n<EFBFBD>訡<EFBFBD><EFBFBD>: %d", reg.x.ax);
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return(-1);
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}
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// <20> 㪠<><E3AAA0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ଠ<EFBFBD> <20><><EFBFBD><E0AEA6> <20><><EFBFBD><EFBFBD><EFBFBD>ন<EFBFBD><E0A6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
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// <20><><EFBFBD><EFBFBD> ᯥ樠<E1AFA5><E6A8A0><EFBFBD><EFBFBD><EFBFBD> <20>㭪権 <20>㤥<EFBFBD> ᮤ<>ঠ<EFBFBD><E0A6A0> 0.
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// <20><EFBFBD><E0AEA2>塞 <20><><EFBFBD>
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if(dbp_f->spec != 0)
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{
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printf("\n<EFBFBD><EFBFBD>ଠ<EFBFBD> <20><><EFBFBD><E0AEA6> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>ন<EFBFBD><E0A6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
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return(-1);
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}
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>塞 <20><><EFBFBD><EFBFBD> <20><>ࠬ<EFBFBD><E0A0AC> <20><><EFBFBD> <20>믮<EFBFBD><EBAFAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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// <20><><EFBFBD><EFBFBD><EFBFBD>樨 <20><>ଠ<EFBFBD><E0ACA0><EFBFBD><E0AEA2><EFBFBD><EFBFBD>
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dbp_f->spec = 0;
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dbp_f->head = 0;
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dbp_f->track = 81;
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// <20><>ଠ<EFBFBD><E0ACA0><EFBFBD>㥬 <20><><EFBFBD><E0AEA6> <20> <20><><EFBFBD><EFBFBD> 81, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0
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reg.x.ax = 0x440d;
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reg.h.bl = 1;
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reg.x.cx = 0x0842;
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reg.x.dx = FP_OFF(dbp_f);
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segreg.ds = FP_SEG(dbp_f);
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intdosx(®, ®, &segreg);
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if(reg.x.cflag != 0)
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{
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printf("\n<EFBFBD>訡<EFBFBD><EFBFBD>: %d", reg.x.ax);
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return(-1);
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}
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// <20><EFBFBD><E1A2AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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farfree(dbp);
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farfree(dbp_f);
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return(0);
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}
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