3 extern int gr_modex_setmode(short mode);
4 extern void gr_modex_setplane(short plane);
5 extern void gr_modex_setstart(short x, short y, int wait_for_retrace);
6 extern void gr_modex_uscanline( short x1, short x2, short y, unsigned char color );
7 extern void gr_modex_line();
8 extern void gr_sync_display();
10 extern int modex_line_vertincr;
11 extern int modex_line_incr1;
12 extern int modex_line_incr2;
13 extern int modex_line_x1;
14 extern int modex_line_y1;
15 extern int modex_line_x2;
16 extern int modex_line_y2;
17 extern ubyte modex_line_Color;