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Frostbyte's 1980s DOS Shareware Collection
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MC20.ZIP
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EQUIP.C
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C/C++ Source or Header
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1990-08-20
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2KB
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71 lines
/*
* Program to display the equipment configuration installed in
* an IBM/PC or compatable system.
*
* This demonstrates the use of inline assembly language routines,
* which are used to obtain information from the IBM/PC BIOS.
*
* Copyright 1989,1990 Dave Dunfield
* All rights reserved.
*/
#include \mc\stdio.h
/* Video adapter display text */
char *ivmode[] = { "Unknown", "Color-40", "Color-80", "Monochrome" };
/*
* Main program to display the equipment installed in an IBM/PC
*/
main()
{
int equip, hdrives, i;
equip = get_equip();
hdrives = 0;
for(i=0x80; i < (0x80+26); ++i) {
if(!test_drive(i))
++hdrives; }
printf("Base system memory=%uK\n", get_mem());
printf("Math co-processor%sinstalled\n", (equip & 2) ? " " : " not ");
printf("Game adaptor%sinstalled\n", (equip & 0x1000) ? " " : " not ");
printf("Startup video is %s\n", ivmode[(equip >> 4) & 3]);
printf("%u Floppy disk drive(s)\n", (equip & 1) && (((equip >> 6) & 3) + 1));
printf("%u Hard disk drive(s)\n", hdrives);
printf("%u Serial port(s)\n", (equip >> 9) & 7);
printf("%u Parallel port(s)\n", (equip >> 14) & 3);
}
/*
* Get the equipment configuration from BIOS
*/
get_equip()
{ ;
#asm
INT 11h ; Get equipment
#endasm
}
/*
* Get size of installed memory from BIOS
*/
get_mem()
{ ;
#asm
INT 12h ; Get memory size
#endasm
}
/*
* Test for existance of a hard drive
*/
test_drive(drive)
{ ;
#asm
MOV DL,4[BP] ; Get drive id
MOV AH,10h ; Drive status function
INT 13h ; Ask BIOS
MOV AL,AH ; Get value
XOR AH,AH ; Zero high
#endasm
}