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/ FM Towns: Free Software Collection 4 / FM Towns Free Software Collection 4 - Disc 1.iso / data / fmgraph / g_setmod.c < prev    next >
Text File  |  1991-10-18  |  364b  |  20 lines
  1. #include    <stdio.h>
  2. #include    <dos.h>
  3.  
  4. extern    unsigned    char    gds_fshift;
  5. extern    unsigned    gds_wrkoff;
  6. extern    unsigned    gds_wrkseg;
  7.  
  8. void    g_setcompatiblemode(unsigned char mode)
  9. {
  10.     union REGS    reg;
  11.     struct SREGS    seg;
  12.  
  13.     segread(&seg);
  14.     reg.h.ah=gds_fshift+0x79;
  15.     reg.h.al=mode;
  16.     reg.x.bx=gds_wrkoff;
  17.     seg.es=gds_wrkseg;
  18.     int86x(0x92,®,®,&seg);
  19. }
  20.