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Esaminiamo il programma:
/* Singolo programma all'immagine del caricamento del sistema di difetto del carico al dischetto illeggibile */
#include <bios.h>
#include <stdio.h>
int main(void)
{
struct diskinfo_t dinfo;
union REGS regs;
int result, i;
/* Immagine del caricamento del sistema da caricare nell'azionamento di dischetto */
static char dbuf[512]=
{
0xEB,0x3E,0x90,0x2B,0x29,0x6E,0x70,0x32,0x49,0x48,0x43,0x0,0x2 ,0x1 ,0x1 ,0x0,
0x2,0xE0,0x0,0x40,0xB,0xF0,0x9,0x0,0x12, 0x0 ,0x2 ,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
0x0,0x0,0x0,0x0,0x29, 0x24,0x3B,0xDB, 0x16,0x4E, 0x4F, 0x20, 0x4E,0x41,0x4D,0x45,
0x20, 0x20, 0x20,0x20,0x46,0x41, 0x54,0x31, 0x32,0x20,0x20, 0x20,0xF1,0x7D, 0xFA,
0x33, 0xC9,0x8E,0xD1, 0xBC,0xFC,0x7B, 0x16,0x7 ,0xBD,0x78,0x0 ,0xC5,0x76,0x0,
0x1E,0x56,0x16,0x55, 0xBF,0x22,0x5 ,0x89,0x7E,0x0 ,0x89,0x4E,0x2 ,0xB1,0xB,0xFC,
0xF3,0xA4,0x6 ,0x1F,0xBD,0x0,0x7C ,0xC6,0x45,0xFE,0xF,0x8B, 0x46,0x18,0x88,0x45,
0xF9,0xFB,0x38,0x66,0x24,0x7C,0x4,0xCD,0x13,0x72,0x3C,0x8A,
0x46,0x10,0x98,0xF7,
0x66,0x16,0x3,0x46,0x1C,0x13,0x56,0x1E,0x3 ,0x46,0xE,0x13,
0xD1,0x50,0x52,0x89,
0x46,0xFC,0x89,0x56,0xFE,0xB8,0x20,0x0,0x8B,0x76,0x11,0xF7,
0xE6,0x8B,0x5E,0xB ,
0x3 ,0xC3,0x48,0xF7,0xF3,0x1,0x46,0xFC, 0x11,0x4E,0xFE,0x5A,
0x58,0xBB,0x0 ,0x7 ,
0x8B,0xFB,0xB1,0x1, 0xE8,0x94,0x0 ,0x72,0x47,0x38,0x2D,0x74,0x19,0xB1,0xB,0x56,
0x8B,0x76,0x3E,0xF3,0xA6,0x5E,0x74,0x4A,0x4E,0x74,0xB,0x3 , 0xF9,0x83, 0xC7, 0x15,
0x3B, 0xFB,0x72,0xE5,0xEB,0xD7,0x2B, 0xC9,0xB8,0xD8, 0x7D, 0x87, 0x46, 0x3E,0x3C,
0xD8,0x75,0x99, 0xBE,0x80,0x7D,0xAC,0x98,0x3,0xF0,0xAC,0x84,0xC0,0x74,0x17,0x3C,
0xFF,0x74,0x9 ,0xB4,0xE ,0xBB,0x7 ,0x0,0xCD,0x10,0xEB, 0xEE,0xBE,0x83,0x7D, 0xEB,
0xE5, 0xBE, 0x81,0x7D,0xEB,0xE0, 0x33,0xC0,0xCD,0x16,0x5E,0x1F,0x8F,0x4 ,0x8F,0x44,
0x2,0xCD, 0x19,0xBE,0x82,0x7D,0x8B,0x7D,0xF,0x83,0xFF,0x2,0 x72,0xC8, 0x8B,0xC7,0x48,
0x48,0x8A,0x4E,0xD,0xF7,0xE1,0x3 ,0x46,0xFC, 0x13,0x56,0xFE,0xBB,0x0 ,0x7 ,0x53,0xB1,0x4 ,
0xE8,0x16,0x0, 0x5B,0x72,0xC8,0x81,0x3F,0x4D,0x5A,0x75,0xA7,0x81,0xBF,0x0,0x2 ,0x42,0x4A,
0x75,0x9F,0xEA,0x0 ,0x2 ,0x70,0x0,0x50,0x52, 0x51, 0x91, 0x92, 0x33, 0xD2,0xF7,0x76,0x18,0x91,
0xF7,0x76, 0x18,0x42, 0x87, 0xCA, 0xF7, 0x76,0x1A,0x8A,0xF2,0x8A,0x56, 0x24,0x8A,0xE8,
0xD0, 0xCC,0xD0,0xCC,0xA,0xCC,0xB8,0x1,0x2, 0xCD,0x13,0x59,0x5A, 0x58, 0x72,0x9,0x40,
0x75,0x1,0x42,0x3, 0x5E,0xB,0xE2,0xCC,0xC3,0x3 ,0x18 ,0x1 ,0x27,0xD ,0xA,0x49, 0x6E,
0x76,0x61,0x6C,0x69,0x64,0x20, 0x73, 0x79, 0x73, 0x74, 0x65,0x6D,0x20,0x64,0x69,0x73,
0x6B,0xFF,0xD ,0xA,0x44,0x69, 0x73,0x6B,0x20, 0x49,0x2F, 0x4F,0x20, 0x65,0x72, 0x72,0x6F,
0x72,0xFF,0xD ,0xA,0x52,0x65,0x70,0x6C,0x61,0x63,0x65,0x20,
0x74,0x68, 0x65, 0x20,
0x64, 0x69,0x73, 0x6B,0x2C,0x20,0x61, 0x6E,0x64,0x20,0x74, 0x68, 0x65, 0x6E, 0x20,0x70,
0x72,0x65, 0x73,0x73, 0x20,0x61,0x6E,0x79,0x20,0x6B,0x65,0x79,0xD,0xA, 0x0,0x49,0x4F,
0x20,0x20,0x20,0x20,0x20,0x20,0x53,0x59,0x53,0x4D, 0x53, 0x44, 0x4F, 0x53,0x20,0x20,
0x20,0x53,0x59,0x53, 0x80,0x1,0x0 ,0x57,0x49,0x4E,0x42,0x4F,0x4F,0x54,0x20,0x53, 0x59
,0x53,0x0,0x0,0x55,0xAA};
clrscr();
dinfo.drive = 0x00; /* numero di azionamento per A: */
dinfo.head = 0; /* numero capo del disc */
dinfo.track = 0; /* numero della pista*/
dinfo.sector = 1; /* numero del settore */
dinfo.nsectors = 1; /* conteggio di settore */
dinfo.buffer = dbuf; /* amplificatore di dati */
gotoxy(10,9);
cprintf("Tentare di leggere dall'azionamento di dischetto:\n");
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