Mail Archives: djgpp/1997/07/26/22:22:22
| From: | stever <sredpath AT dy4 DOT com>
|
| Newsgroups: | comp.os.msdos.djgpp
|
| Subject: | Problem, BIOS call(WinNT)
|
| Date: | Wed, 23 Jul 1997 12:25:17 +0100
|
| Organization: | dy4
|
| Lines: | 71
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| Message-ID: | <33D5EA1D.E986828D@dy4.com>
|
| Reply-To: | sredpath AT dy4 DOT com
|
| NNTP-Posting-Host: | ukpc1.dy4.com
|
| Mime-Version: | 1.0
|
| To: | djgpp AT delorie DOT com
|
| DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
|
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The following program detects PCIBIOS when executed in a DOS window
running under Win95 on one machine but fails to detect the BIOS when
running on another machine running WinNT. The program was compiled on
the NT machine. The NT machine does have PCIBIOS.
#include dpmi.h
{
__dpmi_regs r;
r.h.ah = 0xb1;
r.h.al = 0x01;
__dpmi_int (0x1a, &r);
if (!r.h.ah)
printf("%c%c%c%cBIOS Present\n", r.h.dl, r.h.dh, r.h.edx_b2,
r.h.edx_b3);
else
printf("PCI BIOS not found\n");
}
If PCI BIOS is present the edx register should contain the ascii
characters 'P' 'C' 'I' 'space' and the AH register=0;
Can anyone tell me why this wont work under windows NT?
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<HTML>
The following program detects PCIBIOS when executed in a DOS window running
under Win95 on one machine but fails to detect the BIOS when running on
another machine running WinNT. The program was compiled on the NT machine.
The NT machine <B>does</B> have PCIBIOS.
<P>#include dpmi.h
<P>{<FONT SIZE=-1></FONT>
<P><FONT SIZE=-1>
__</FONT>dpmi_regs r;
<UL> r.h.ah = 0xb1;
<BR> r.h.al = 0x01;
<P>__dpmi_int (0x1a, &r);
<P>if (!r.h.ah)
<BR> printf("%c%c%c%cBIOS Present\n", r.h.dl, r.h.dh,
r.h.edx_b2, r.h.edx_b3);
<BR> else
<BR> printf("PCI BIOS not found\n");</UL>
}
<P>If PCI BIOS is present the edx register should contain the ascii characters
'P' 'C' 'I' 'space' and the AH register=0;
<P>Can anyone tell me why this wont work under windows NT?
<BR> </HTML>
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