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PCIS_INT.CPP
Package: PCIAccess.rar　[view]
Upload User: whzhdz
Upload Date: 2007-03-07
Package Size: 6k
Code Size: 1k
Category:

Embeded-SCM Develop

Development Platform:

DOS

PCIS_INT.CPP：Code Content
  1. #include <stdio.h>
  2. #include <conio.h>
  3. #include <dos.h>
  5. void main(void)
  6. {
  7.     int bus, device, func, regindex;
  8.     union REGS regs, outregs;
  9.     unsigned long lo, hi, ovalue;
  10.     unsigned long BaseAddr;
  12.     clrscr();
  13.     func = 0;
  14.     regindex = 0;
  15.     for(bus=0; bus<5; bus++)
  16.     {
  17. for(device=0; device<32; device++)
  18. {
  19.      regs.h.bh = bus;
  20.      regs.h.bl = (device<<3) | (func & 0x07);
  21.      regindex = 0;
  22.      regs.x.di = regindex;
  23.      regs.x.ax = 0xB109;
  24.      int86(0x1A,&regs,&outregs);
  25.      lo = outregs.x.cx;
  26.      regs.x.di = regindex + 2;
  27.      int86(0x1A,&regs,&outregs);
  28.      hi = outregs.x.cx;
  29.      ovalue = hi*65536l+lo;
  30.      if (lo != 0xffff)
  31.      {
  32.  printf("nBus = 0x%xn", bus);
  33.  printf("Device = 0x%xn", device);
  34.  printf("ID = %lxn", ovalue);
  36.  for(BaseAddr=0; BaseAddr<=5; BaseAddr++)
  37.  {
  38.      regindex = 0x10 + BaseAddr*4;
  39.      regs.x.di = regindex;
  40.      int86(0x1A,&regs,&outregs);
  41.      lo = outregs.x.cx;
  42.      regs.x.di = regindex + 2;
  43.      int86(0x1A,&regs,&outregs);
  44.      hi = outregs.x.cx;
  45.      ovalue = hi*65536l+lo;
  46.      printf("Base%d: Low = 0x%xtHi = 0x%xn", BaseAddr, lo, hi);
  47.  }
  48.  regindex = 0x3c;
  49.  regs.x.di = regindex;
  50.  int86(0x1A,&regs,&outregs);
  51.  lo = outregs.x.cx;
  52.  printf("IRQ# = %dn", lo & 0xff);
  53.  getch();
  54.      }
  55. }
  56.     }
  57. }