Defines starting with `d' in Quake

• D3DQUAKE_VERSION Quake/quakedef.h:28
• DEFAULT_SOUND_PACKET_ATTENUATION Quake/sound.h:26
• DEFAULT_SOUND_PACKET_VOLUME Quake/sound.h:25
• DEFAULT_VIEWHEIGHT Quake/protocol.h:67
• DEF_SAVEGLOBAL Quake/pr_comp.h:134
• dfunc Quake/net_dgrm.c:60
• DI_NODIR Quake/sv_move.c:283
• DINPUT_BUFFERSIZE Quake/in_win.c:28
• DIST_EPSILON Quake/world.c:573
• DIST_NOT_SET Quake/r_local.h:84
• DIVISOR_LATCH_HIGH Quake/net_comx.c:122
• DIVISOR_LATCH_LOW Quake/net_comx.c:121
• _DOSISMS_H_ Quake/dosisms.h:26
• DPMIAPI_GETFLAT32_ORD Quake/mplib.c:50
• DPMIAPI_POST_WINDOWS_ORD Quake/mplib.c:51
• DPS_MAXSPANS Quake/d_polysa.s:33
• DYNAMIC_SIZE Quake/zone.c:24