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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.
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.


===Opcodes===
===Opcodes===
There are more complete disassemblers around, will add their info ASAP.
<code>
<code>
   44 = push
   44 = push
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===Commands===
===Commands===
There's still a little confusion about the numbering, so don't take anything below for granted.
<code>
<code>
  00 Cmd_Magic_In_Mouse_Item
  01 Cmd_Character_Says 3 args (unk, unk, stringID) - also see 34
  02 Cmd_Pause_Ticks
  03 Cmd_Draw_Scene_Anim_Shape
  04 Cmd_Query_Game_Flag
  05 Cmd_Set_Game_Flag
  06 Cmd_Reset_Game_Flag
  07 Cmd_Run_NPC_Script
  08 Cmd_Set_Special_Exit_List
  09 Cmd_Block_In_Walkable_Region
  0A Cmd_Block_Out_Walkable_Region
  0B Cmd_Walk_Player_To_Point 4 args (unk, x, x, y) - x may be be greater than 0xFF, y must not, so only 1 byte for that
  0C Cmd_Drop_Item_In_Scene
  0D Cmd_Draw_Anim_Shape_Into_Scene
  0E Cmd_Create_Mouse_Item 1 arg  (itemID) - ie mousecursor=item id
  0F Cmd_Save_Page_To_Disk
  10 Cmd_Load_Page_From_Disk
  11 Cmd_Scene_Anim_On
  12 Cmd_Scene_Anim_Off
  13 Cmd_Elapsed_Seconds
  14 Cmd_Mouse_Is_Pointer
  15 Cmd_Destroy_Mouse_Item
  16 Cmd_Run_Scene_Anim_Until_Done
  17 Cmd_Fade_Special_Palette
  18 Cmd_Play_AdLib_Sound
  19 Cmd_Play_AdLib_Score
  1A Cmd_Phase_In_Same_Scene
  1B Cmd_Set_Scene_Phasing_Flag
  1C Cmd_Reset_Scene_Phasing_Flag
  1D Cmd_Query_Scene_Phasing_Flag
  1E Cmd_Scene_To_Direction
  1F Cmd_Set_Birthstone_Gem
  20 Cmd_Place_Item_In_Generic_Map_Scene
  21 Cmd_Set_Brandon_Status_Bit
  22 Cmd_Pause_Seconds
  23 Cmd_Get_Characters_Location
  24 Cmd_Run_NPC_Subscript
  25 Cmd_Magic_Out_Mouse_Item
  26 Cmd_Internal_Anim_On
  27 Cmd_Force_Brandon_To_Normal
  28 Cmd_Poison_Death_Now
  29 Cmd_Set_Scale_Mode
  2A Cmd_Open_WSA_File
  2B Cmd_Close_WSA_File
  2C Cmd_Run_WSA_From_Beginning_To_End
  2D Cmd_Display_WSA_Frame
  2E Cmd_Enter_New_Scene
  2F Cmd_Set_Special_Enter_X_And_Y
  30 Cmd_Run_WSA_Frames
  31 Cmd_Pop_Brandon_Into_Scene
  32 Cmd_Restore_All_Object_Backgrounds
  33 Cmd_Set_Custom_Palette_Range
  34 Cmd_Custom_Print_Talk_String 4 args (color, unk, unk, stringid) - see also 01
  35 Cmd_Restore_Custom_Print_Background 0 args
  36 Cmd_Hide_Mouse 0 args
  37 Cmd_Show_Mouse 0 args
  38 Cmd_Get_Character_X
  39 Cmd_Get_Character_Y
  3A Cmd_Change_Characters_Facing
  3B Cmd_Copy_WSA_Region
  3C Cmd_Text_Print
  3D Cmd_Random
  3E Cmd_Load_Sound_File
  3F Cmd_Display_WSA_Frame_On_HidPage
  40 Cmd_Display_WSA_Sequential_Frames
  41 Cmd_Draw_Character_Standing
  42 Cmd_Internal_Anim_Off
  43 Cmd_Change_Characters_X_And_Y
  44 Cmd_Clear_Scene_Animator_Beacon
  45 Cmd_Query_Scene_Animator_Beacon
  46 Cmd_Refresh_Scene_Animator
  47 Cmd_Place_Item_In_Off_Scene
  48 Cmd_Wipe_Down_Mouse_Item
  49 Cmd_Place_Character_In_Other_Scene
  4A Cmd_Get_Key
  4B Cmd_Specific_Item_In_Inventory
  4C Cmd_Pop_Mobile_NPC_Into_Scene
  4D Cmd_Mobile_Character_In_Scene
  4E Cmd_Hide_Mobile_Character
  4F Cmd_Unhide_Mobile_Character
  50 Cmd_Set_Characters_Location
  51 Cmd_Walk_Character_To_Point
  52 Cmd_Special_Event_Display_Brynns_Note
  53 Cmd_Special_Event_Remove_Brynns_Note
  54 Cmd_Set_Logic_Page
  55 Cmd_Fat_Print
  Cmd_Preserve_All_Object_Backgrounds", // 0x57
  Cmd_Update_Scene_Animations", // 0x58
  Cmd_Scene_Animation_Active", // 0x59
  Cmd_Set_Characters_Movement_Delay", // 0x5A
  Cmd_Get_Characters_Facing", // 0x5B
  Cmd_Bkgd_Scroll_Scene_And_Masks_Right", // 0x5C
  Cmd_Find_Brightest_Fireberry", // 0x5D
  Cmd_Set_Fireberry_Glow_Palette", // 0x5E
  Cmd_Set_Death_Handler_Flag", // 0x5F
  Cmd_Drink_Potion_Animation", // 0x60
  Cmd_Make_Amulet_Appear", // 0x61
  Cmd_Draw_Item_Shape_Into_Scene", // 0x62
  Cmd_Set_Characters_Current_Frame", // 0x63
  Cmd_Wait_For_Confirmation_Mouse_Click", // 0x64
  Cmd_Page_Flip", // 0x65
  Cmd_Set_Scene_File", // 0x66
  Cmd_What_Item_In_Marble_Vase", // 0x67
  Cmd_Set_Item_In_Marble_Vase", // 0x68
  Cmd_Add_Item_To_Inventory", // 0x69
  Cmd_Int_Print", // 0x6A
  Cmd_Shake_Screen", // 0x6B
  Cmd_Create_Amulet_Jewel", // 0x6C
  Cmd_Set_Scene_Anim_Curr_XY", // 0x6D
  Cmd_Poison_Brandon_And_Remaps", // 0x6E
  Cmd_Fill_Flask_With_Water", // 0x6F
  Cmd_Get_Characters_Movement_Delay", // 0x70
  Cmd_Get_Birthstone_Gem", // 0x71
  Cmd_Query_Brandon_Status_Bit", // 0x72
  Cmd_Play_Flute_Animation", // 0x73
  Cmd_Play_Winter_Scroll_Sequence", // 0x74
  Cmd_Get_Idol_Gem", // 0x75
  Cmd_Set_Idol_Gem", // 0x76
  Cmd_Total_Items_In_Scene", // 0x77
  Cmd_Restore_Brandons_Movement_Delay", // 0x78
  Cmd_Set_Mouse_Pos", // 0x79
  Cmd_Get_Mouse_State", // 0x7A
  Cmd_Set_Entrance_Mouse_Cursor_Track", // 0x7B
  Cmd_Item_Appears_On_Ground", // 0x7C
  Cmd_Set_No_Draw_Shapes_Flag", // 0x7D
  Cmd_Fade_Entire_Palette", // 0x7E
  Cmd_Item_On_Ground_Here", // 0x7F
  Cmd_Query_Cauldron_State", // 0x80
  Cmd_Set_Cauldron_State", // 0x81
  Cmd_Query_Crystal_State", // 0x82
  Cmd_Set_Crystal_State", // 0x83
  Cmd_Set_Palette_Range", // 0x84
  Cmd_Shrink_Brandon_Down", // 0x85
  Cmd_Grow_Brandon_Up", // 0x86
  Cmd_Set_Brandon_Scale_X_And_Y", // 0x87
  Cmd_Reset_Scale_Mode", // 0x88
  Cmd_Get_Scale_Depth_Table_Value", // 0x89
  Cmd_Set_Scale_Depth_Table_Value", // 0x8A
  Cmd_Message", // 0x8B - set room name/status text (unk, stringID)
  Cmd_Check_Click_On_NPC", // 0x8C
  Cmd_Get_Foyer_Item", // 0x8D
  Cmd_Set_Foyer_Item", // 0x8E
  Cmd_Dispel_Magic_Animation", // 0x8F
  Cmd_Set_No_Item_Drop_Region", // 0x90
  Cmd_Walk_Malcolm_On", // 0x91
  91 Cmd_Passive_Protection 0 args // 0x92
  Cmd_Set_Playing_Loop", // 0x93
  93 Cmd_Brandon_To_Stone_Sequence 0 args // 0x94
  Cmd_Brandon_Healing_Sequence", // 0x95
  Cmd_Protect_Command_Line", // 0x96
  Cmd_Pause_Music_Seconds", // 0x97
  Cmd_Reset_Mask_Region", // 0x98
  Cmd_Set_Palette_Change_Flag", // 0x99
  Cmd_Fill_Rect", // 0x9A
  Cmd_Dummy" // 0x9B
still needs to be incorporated into above list:
   01              3 arguments    ; output string std color? (unk, unk, stringid) (see also 34)
   01              3 arguments    ; output string std color? (unk, unk, stringid) (see also 34)
   0B              4              ; walk to coordinates (unk, x,x,y) Cmd_Walk_Player_To_Point ?
   0B              4              ; walk to coordinates (unk, x,x,y) Cmd_Walk_Player_To_Point ?
334

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