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From: | "Ricardo Cropalato de Melo" <cropalat AT svn DOT com DOT br> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | problem with __dpmi_int() |
Date: | Mon, 4 Sep 2000 10:39:49 -0300 |
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I 'm trying to read a floppy sector / sector, and i was doing it like this code: // Code #include <stdio.h> #include <sys/segments.h> #include <dos.h> int main(void) { union REGS regs; struct SREGS sregs; unsigned char sector[512]; regs.h.ah =0x02; // read a sectors from a disk regs.h.dl = 0x00; // drive number regs.h.ch = k; // track 0 to 79 - max 80 regs.h.cl = j; // sector 0 à 17 - max 18 regs.h.dh = i; // head 0 e 1 - max 2 regs.x.bx = (unsigned) sector; sregs.es = _my_ds(); int86x(0x13,®s,®s,&sregs); return (regs.h.ah); // zero if ok } This work fine but if i put this code in a function, i get a GPF. Some one tell me that int86x() don't work fine with offset and saw to use __dmpi_int(). It don't work in main() or in function(). #include <iostream.h> #include <dpmi.h> #include <sys/segments.h> int main() { __dpmi_regs regs; char setor[512] = "Teste"; cout << endl << setor; for (int i=0; i< 1; i++) // trilhas for (int j=0; j< 2; j++) // cabecas for (int k=0; k< 18; k++) file://setores { regs.h.ah = 2; regs.h.al = 1; regs.h.ch = i; regs.h.cl = j; regs.h.dh = k; regs.h.dl = 0; regs.x.es = _my_cs(); regs.x.bx = (unsigned) setor; __dpmi_int (0x13, ®s); cout << endl << setor; } cout << endl; } PLEASE, Any one can help me. TIA Cropalato cropalat AT svn DOT com DOT br
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