18 INT 18 - DISKLESS BOOT HOOK (START CASSETTE BASIC)
1800 INT 18 - NEC PC-9800 series - KEYBOARD - GET KEYSTROKE
1801 INT 18 - NEC PC-9800 series - KEYBOARD - CHECK FOR KEYSTROKE
1802 INT 18 - NEC PC-9800 series - KEYBOARD - GET SHIFT STATUS
1803 INT 18 - NEC PC-9800 series - KEYBOARD - INITIALIZE
1804 INT 18 - NEC PC-9800 series - KEYBOARD - KEY PRESSED
18 INT 18 - NEC PC-9800 series - VIDEO
180E INT 18 - NEC PC-9800 series - SET SINGLE DISPLAY AREA
181B INT 18 - NEC PC-9800 series - SET DISPLAY MODE
185350BX4849 INT 18 - SPHINX C-- - WB.COM - API
186900 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET STATUS
186901 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RESET
186902 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET VOLUME FOR SPECIFIC VOICE
186903 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET FREQUENCY FOR VOICE
186904 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET LEFT/RIGHT BALANCE
186905 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - PLAY MUSIC
186906 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - LOAD SOUND DATA
186907 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - STOP VOICE
186908 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET VOICE END
186909 INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RAMP VOLUME
18690A INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET VOLUME
18690B INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET POSITION
18690C INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SAVE SOUND DATA
18690D INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RESTART VOICE
188000 INT 18 - Gravis Ultra Sound EURO_MOD.EXE - INITIALIZE
188001 INT 18 - Gravis Ultra Sound EURO_MOD.EXE - LOAD .MOD FILE
188002 INT 18 - Gravis Ultra Sound EURO_MOD.EXE - PLAY .MOD FILE
188003 INT 18 - Gravis Ultra Sound EURO_MOD.EXE - STOP PLAYING
188004 INT 18 - Gravis Ultra Sound EURO_MOD.EXE - SHUTDOWN