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| This page is a work-in-progress document listing VM opcodes of the [[kyra|Kyrandia]] games. Unless otherwise noted, these opcodes are based on Kyrandia 1. Cyx created the list of Cmd functions, clem and Lordhoto will try to fill in parameters and usage notes. If you have any additions, contact the ScummVM team on IRC. | | This page is a reference of unused opcodes in Kyrandia 1. |
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| It is assumed that the opcodes stay the same during all revisions of Kyrandia. A quick comparison between English 1.0 and English 1.3 seems to support this. Generally the list is created by analysis of 1.0 script.
| | ==Unimplemented opcodes== |
| | | {| border="1" width="100%" |
| Hint: To disable an opcode/command pair in the compiled scripts, overwrite it with '''4C 00''' (add sp,00).
| | |- |
| | | !|Opcode # |
| ===Opcodes=== | | !|Name |
| | | !|Place of use |
| There are more complete disassemblers around, will add their info ASAP.
| | |- |
| | | |07 |
| <code>
| | |o1_runNPCScript |
| 44 = push
| | |not used |
| 45 = ? compare [sp], [xx] ?
| | |- |
| 49 = ? copy [xx], [sp] ?
| | |3E |
| 4C = add sp,xx ; what would be dec sp,xx? maybe 4B or 4E?
| | |o1_loadSoundFile |
| 4E = execute command (see below)
| | |not used |
| </code>
| | |- |
| | | |4B |
| ===Commands===
| | |o1_specificItemInInventory |
| | | |not used |
| '''A note on arguments:''' parameters are pushed onto the stack before executing the command:
| | |- |
| <code>
| | |4D |
| 44 FE push FE
| | |o1_mobileCharacterInScene |
| 44 00 push 00
| | |not used |
| 44 00 push 00 // string ID - the first string in the TEXT segment will be displayed
| | |- |
| 4E 01 execute 01 // display string
| | |4E |
| 4C 03 add sp, 03 // discard the 3 pushed values
| | |o1_hideMobileCharacter |
| </code>
| | |not used? (many false positives, but since unhide isn't implemented I don't think that exists) |
| | | |- |
| The arguments are listed in reverse order in this document (first in - last out):
| | |4F |
| | | |o1_unhideMobileCharacter |
| <code>
| | |not used |
| 01 Cmd_Character_Says 3 args (stringID, unk, unk)
| | |- |
| </code>
| | |65 |
| | | |o1_pageFlip |
| | | |not used |
| There's still a little confusion about the numbering, so don't take anything below for granted.
| | |- |
| | | |69 |
| <code>
| | |o1_addItemToInventory |
| | | |not used |
| 00? Cmd_Magic_In_Mouse_Item 00
| | |- |
| 01 Cmd_Character_Says 3 args (stringID, unk, unk) - also see 34
| | |6A |
| 02? Cmd_Pause_Ticks 02
| | |o1_intPrint |
| 03? Cmd_Draw_Scene_Anim_Shape 03
| | |not used |
| 04? Cmd_Query_Game_Flag 04
| | |- |
| 05? Cmd_Set_Game_Flag 05
| | |84 |
| 06? Cmd_Reset_Game_Flag 06
| | |o1_setPaletteRange |
| 07? Cmd_Run_NPC_Script 07
| | |not used |
| 08? Cmd_Set_Special_Exit_List 08
| | |- |
| 09? Cmd_Block_In_Walkable_Region 09
| | |92 |
| 0A? Cmd_Block_Out_Walkable_Region 0A
| | |o1_setPlayingLoop |
| 0B Cmd_Walk_Player_To_Point 4 args (y, x, x, unk) - x may be be greater than 0xFF, y must not, so only 1 byte for that
| | |2 times used (GRAVE.EMC, CAVEB.EMC - only used on failing copy protection, exit to DOS) |
| 0C? Cmd_Drop_Item_In_Scene 0C
| | |- |
| 0D Cmd_Draw_Anim_Shape_Into_Scene 4 args (remove item from screen?) (removes note from desk)
| | |97 |
| 0E Cmd_Create_Mouse_Item 1 arg (itemID) - pick up item; ie mousecursor=item id
| | |o1_resetMaskRegion |
| 0F Cmd_Save_Page_To_Disk tries to write sth to disk, filename = stringID of last push
| | |not used |
|
| | |} |
| 10? Cmd_Load_Page_From_Disk 10
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| 11? Cmd_Scene_Anim_On 11
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| 12? Cmd_Scene_Anim_Off 12
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| 13? Cmd_Elapsed_Seconds 13
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| 14? Cmd_Mouse_Is_Pointer 14
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| 15? Cmd_Destroy_Mouse_Item 15
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| 16? Cmd_Run_Scene_Anim_Until_Done 16
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| 17? Cmd_Fade_Special_Palette 17
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| 18? Cmd_Play_AdLib_Sound 18
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| 19? Cmd_Play_AdLib_Score 19
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| 1A? Cmd_Phase_In_Same_Scene 1A
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| 1B? Cmd_Set_Scene_Phasing_Flag 1B
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| 1C? Cmd_Reset_Scene_Phasing_Flag 1C
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| 1D? Cmd_Query_Scene_Phasing_Flag 1D
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| 1E? Cmd_Scene_To_Direction 1E
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| 1F? Cmd_Set_Birthstone_Gem 1F
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| 20? Cmd_Place_Item_In_Generic_Map_Scene 20
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| 21? Cmd_Set_Brandon_Status_Bit 21
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| 22? Cmd_Pause_Seconds 22
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| 23? Cmd_Get_Characters_Location 23
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| 24? Cmd_Run_NPC_Subscript 24
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| 25? Cmd_Magic_Out_Mouse_Item 25 // I think this is really "24", clears mouse cursor, plays magic sound
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| 26? Cmd_Internal_Anim_On 26
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| 27? Cmd_Force_Brandon_To_Normal 27
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| 28? Cmd_Poison_Death_Now 28
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| 29? Cmd_Set_Scale_Mode 29
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| | |
| 28 looks more like "Cmd_Set_Scale_Mode", when executing it Brandon becomes tiny
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| | |
| note: this looks more like 2A, check numbering
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| 29 4 ; play WSA file? (or just load it? coords?)
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| | |
| 2A? Cmd_Open_WSA_File 2A // I think this should be '29', so there's another problem here
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| 2B? Cmd_Close_WSA_File 2B
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| 2C? Cmd_Run_WSA_From_Beginning_To_End 2C
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| 2D? Cmd_Display_WSA_Frame 2D
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| 2E? Cmd_Enter_New_Scene 2E
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| 2F? Cmd_Set_Special_Enter_X_And_Y 2F
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| 30? Cmd_Run_WSA_Frames 30
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| 31? Cmd_Pop_Brandon_Into_Scene 31
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| 32? Cmd_Restore_All_Object_Backgrounds 32
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| 33? Cmd_Set_Custom_Palette_Range 33
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| 34 Cmd_Custom_Print_Talk_String 4 args (stringID, unk, unk, color) - see also 01, color=palette entry
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| 35 Cmd_Restore_Custom_Print_Background 0 args ; restore text background?
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| 36 Cmd_Hide_Mouse 0 args
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| 37 Cmd_Show_Mouse 0 args
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| 38? Cmd_Get_Character_X 38
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| 39? Cmd_Get_Character_Y 39
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| 3A Cmd_Change_Characters_Facing 3 args
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| 3B? Cmd_Copy_WSA_Region 3B
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| 3C Cmd_Text_Print 5 args (stringID, x, y, unk, unk)? prints text on brynn's note
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| 3D? Cmd_Random 3D
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| 3E? Cmd_Load_Sound_File 3E
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| 3F? Cmd_Display_WSA_Frame_On_HidPage 3F
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| 40? Cmd_Display_WSA_Sequential_Frames 40
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| 41? Cmd_Draw_Character_Standing 41
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| 42? Cmd_Internal_Anim_Off 42
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| 43? Cmd_Change_Characters_X_And_Y 43
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| 44? Cmd_Clear_Scene_Animator_Beacon 44
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| 45? Cmd_Query_Scene_Animator_Beacon 45
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| 46? Cmd_Refresh_Scene_Animator 46
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| 47? Cmd_Place_Item_In_Off_Scene 47
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| 48 Cmd_Wipe_Down_Mouse_Item // destroys picked up item, sets mouse cursor to normal
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| 49? Cmd_Place_Character_In_Other_Scene 49
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| 4A? Cmd_Get_Key 4A
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| 4B? Cmd_Specific_Item_In_Inventory 4B
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| 4C? Cmd_Pop_Mobile_NPC_Into_Scene 4C
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| 4D? Cmd_Mobile_Character_In_Scene 4D
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| 4E? Cmd_Hide_Mobile_Character 4E
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| 4F? Cmd_Unhide_Mobile_Character 4F
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| 50? Cmd_Set_Characters_Location 50
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| 51? Cmd_Walk_Character_To_Point 51
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| 52 Cmd_Special_Event_Display_Brynns_Note 0 args
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| 53 Cmd_Special_Event_Remove_Brynns_Note 0 args
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| 54? Cmd_Set_Logic_Page 54
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| 55? Cmd_Fat_Print 55
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| Cmd_Preserve_All_Object_Backgrounds // 0x57
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| Cmd_Update_Scene_Animations // 0x58
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| Cmd_Scene_Animation_Active // 0x59
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| Cmd_Set_Characters_Movement_Delay // 0x5A
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| Cmd_Get_Characters_Facing // 0x5B
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| Cmd_Bkgd_Scroll_Scene_And_Masks_Right // 0x5C
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| Cmd_Find_Brightest_Fireberry // 0x5D
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| Cmd_Set_Fireberry_Glow_Palette // 0x5E
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| Cmd_Set_Death_Handler_Flag // 0x5F
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| 60 Cmd_Drink_Potion_Animation 3 args
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| 61 Cmd_Make_Amulet_Appear // 0x61 // used in altar.emc?
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| Cmd_Draw_Item_Shape_Into_Scene // 0x62
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| Cmd_Set_Characters_Current_Frame // 0x63
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| 64 Cmd_Wait_For_Confirmation_Mouse_Click // 0x64
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| Cmd_Page_Flip // 0x65
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| Cmd_Set_Scene_File // 0x66
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| Cmd_What_Item_In_Marble_Vase // 0x67
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| 68 Cmd_Set_Item_In_Marble_Vase // last pushed value is item ID of item in vase in gemcut.emc
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| Cmd_Add_Item_To_Inventory // 0x69
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| 6A Cmd_Int_Print // prints last pushed value to top left corner? (debug only?)
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| 6B Cmd_Shake_Screen // 0x6B
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| 6C Cmd_Create_Amulet_Jewel 1 arg - 01=yellow, 02=red, 03=pink, 04=blue
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| Cmd_Set_Scene_Anim_Curr_XY // 0x6D
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| 6E Cmd_Poison_Brandon_And_Remaps 0 args
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| 6F Cmd_Fill_Flask_With_Water 2 args, used in fountn.emc
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|
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| Cmd_Get_Characters_Movement_Delay // 0x70
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| Cmd_Get_Birthstone_Gem // 0x71
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| Cmd_Query_Brandon_Status_Bit // 0x72
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| 73 Cmd_Play_Flute_Animation 0 args
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| 74 Cmd_Play_Winter_Scroll_Sequence 1 arg
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| Cmd_Get_Idol_Gem // 0x75
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| Cmd_Set_Idol_Gem // 0x76
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| Cmd_Total_Items_In_Scene // 0x77
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| Cmd_Restore_Brandons_Movement_Delay // 0x78
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| Cmd_Set_Mouse_Pos // 0x79
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| Cmd_Get_Mouse_State // 0x7A
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| Cmd_Set_Entrance_Mouse_Cursor_Track // 0x7B
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| Cmd_Item_Appears_On_Ground // 0x7C
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| Cmd_Set_No_Draw_Shapes_Flag // 0x7D
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| Cmd_Fade_Entire_Palette // 0x7E
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| Cmd_Item_On_Ground_Here // 0x7F
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|
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| Cmd_Query_Cauldron_State // 0x80
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| Cmd_Set_Cauldron_State // 0x81
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| Cmd_Query_Crystal_State // 0x82
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| Cmd_Set_Crystal_State // 0x83
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| Cmd_Set_Palette_Range // 0x84
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| 85 Cmd_Shrink_Brandon_Down 1 arg
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| 86 Cmd_Grow_Brandon_Up 0 args
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| Cmd_Set_Brandon_Scale_X_And_Y // 0x87
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| Cmd_Reset_Scale_Mode // 0x88
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| Cmd_Get_Scale_Depth_Table_Value // 0x89
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| Cmd_Set_Scale_Depth_Table_Value // 0x8A
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| 8B Cmd_Message 2 args // 0x8B - set room name/status text (stringID, unk)
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| Cmd_Check_Click_On_NPC // 0x8C
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| Cmd_Get_Foyer_Item // 0x8D
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| Cmd_Set_Foyer_Item // 0x8E
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| Cmd_Dispel_Magic_Animation // 0x8F
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|
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| Cmd_Set_No_Item_Drop_Region // 0x90
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| Cmd_Walk_Malcolm_On // 0x91
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| 91 Cmd_Passive_Protection 0 args //92
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| Cmd_Set_Playing_Loop // 0x93
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| 93 Cmd_Brandon_To_Stone_Sequence 0 args //94
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| 94 Cmd_Brandon_Healing_Sequence // 0x95
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| Cmd_Protect_Command_Line // 0x96
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| Cmd_Pause_Music_Seconds // 0x97
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| Cmd_Reset_Mask_Region // 0x98
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| Cmd_Set_Palette_Change_Flag // 0x99
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| Cmd_Fill_Rect // 0x9A
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| Cmd_Dummy // 0x9B
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| </code>
| |