Defines starting with `o' in quake1

• OFS_NULL Quake/pr_comp.h:29
• OFS_PARM0 Quake/pr_comp.h:31
• OFS_PARM1 Quake/pr_comp.h:32
• OFS_PARM2 Quake/pr_comp.h:33
• OFS_PARM3 Quake/pr_comp.h:34
• OFS_PARM4 Quake/pr_comp.h:35
• OFS_PARM5 Quake/pr_comp.h:36
• OFS_PARM6 Quake/pr_comp.h:37
• OFS_PARM7 Quake/pr_comp.h:38
• OFS_RETURN Quake/pr_comp.h:30
• ON_EPSILON Quake/quakedef.h:99
• OPTIONS_ITEMS Quake/menu.c:1040
• out Quake/r_aclipa.s:40
• outportb Quake/vregset.c:30