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Difference between revisions of "Kyra/Opcodes"
disambiguate arguments
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(disambiguate arguments) |
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===Commands=== | ===Commands=== | ||
'''A note on arguments:''' parameters are pushed onto the stack before executing the command: | |||
<code> | |||
44 FE push FE | |||
44 00 push 00 | |||
44 00 push 00 // string ID - the first string in the TEXT segment will be displayed | |||
4E 01 execute 01 // display string | |||
4C 03 add sp, 03 // discard the 3 pushed values | |||
</code> | |||
The arguments are listed in reverse order in this document (first in - last out): | |||
<code> | |||
01 Cmd_Character_Says 3 args (stringID, unk, unk) | |||
</code> | |||
There's still a little confusion about the numbering, so don't take anything below for granted. | There's still a little confusion about the numbering, so don't take anything below for granted. | ||
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00? Cmd_Magic_In_Mouse_Item 00 | 00? Cmd_Magic_In_Mouse_Item 00 | ||
01 Cmd_Character_Says 3 args (unk, unk | 01 Cmd_Character_Says 3 args (stringID, unk, unk) - also see 34 | ||
02? Cmd_Pause_Ticks 02 | 02? Cmd_Pause_Ticks 02 | ||
03? Cmd_Draw_Scene_Anim_Shape 03 | 03? Cmd_Draw_Scene_Anim_Shape 03 | ||
| Line 34: | Line 50: | ||
09? Cmd_Block_In_Walkable_Region 09 | 09? Cmd_Block_In_Walkable_Region 09 | ||
0A? Cmd_Block_Out_Walkable_Region 0A | 0A? Cmd_Block_Out_Walkable_Region 0A | ||
0B Cmd_Walk_Player_To_Point 4 args ( | 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 | ||
0C? Cmd_Drop_Item_In_Scene 0C | 0C? Cmd_Drop_Item_In_Scene 0C | ||
0D Cmd_Draw_Anim_Shape_Into_Scene 4 args (remove item from screen?) (removes note from desk) | 0D Cmd_Draw_Anim_Shape_Into_Scene 4 args (remove item from screen?) (removes note from desk) | ||
0E Cmd_Create_Mouse_Item 1 arg (itemID) - pick up item; ie mousecursor=item id | 0E Cmd_Create_Mouse_Item 1 arg (itemID) - pick up item; ie mousecursor=item id | ||
0F Cmd_Save_Page_To_Disk tries to write sth to disk, filename = | 0F Cmd_Save_Page_To_Disk tries to write sth to disk, filename = stringID of last push | ||
10? Cmd_Load_Page_From_Disk 10 | 10? Cmd_Load_Page_From_Disk 10 | ||
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32? Cmd_Restore_All_Object_Backgrounds 32 | 32? Cmd_Restore_All_Object_Backgrounds 32 | ||
33? Cmd_Set_Custom_Palette_Range 33 | 33? Cmd_Set_Custom_Palette_Range 33 | ||
34 Cmd_Custom_Print_Talk_String 4 args ( | 34 Cmd_Custom_Print_Talk_String 4 args (stringID, unk, unk, color) - see also 01, color=palette entry | ||
35 Cmd_Restore_Custom_Print_Background 0 args ; restore text background? | 35 Cmd_Restore_Custom_Print_Background 0 args ; restore text background? | ||
36 Cmd_Hide_Mouse 0 args | 36 Cmd_Hide_Mouse 0 args | ||
| Line 92: | Line 108: | ||
3A Cmd_Change_Characters_Facing 3 args | 3A Cmd_Change_Characters_Facing 3 args | ||
3B? Cmd_Copy_WSA_Region 3B | 3B? Cmd_Copy_WSA_Region 3B | ||
3C Cmd_Text_Print 5 args ( | 3C Cmd_Text_Print 5 args (stringID, x, y, unk, unk)? prints text on brynn's note | ||
3D? Cmd_Random 3D | 3D? Cmd_Random 3D | ||
3E? Cmd_Load_Sound_File 3E | 3E? Cmd_Load_Sound_File 3E | ||
| Line 176: | Line 192: | ||
Cmd_Get_Scale_Depth_Table_Value // 0x89 | Cmd_Get_Scale_Depth_Table_Value // 0x89 | ||
Cmd_Set_Scale_Depth_Table_Value // 0x8A | Cmd_Set_Scale_Depth_Table_Value // 0x8A | ||
8B Cmd_Message 2 args // 0x8B - set room name/status text (unk | 8B Cmd_Message 2 args // 0x8B - set room name/status text (stringID, unk) | ||
Cmd_Check_Click_On_NPC // 0x8C | Cmd_Check_Click_On_NPC // 0x8C | ||
Cmd_Get_Foyer_Item // 0x8D | Cmd_Get_Foyer_Item // 0x8D | ||