Difference between revisions of "Kyra/Opcodes"

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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.


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 #
 
!|Name
Unimplemented functions:
!|Place of use
  cmd_runNPCScript stub 07 - not used
|-
  cmd_loadSoundFile stub 3E - not used
|07
  cmd_specificItemInInventory stub 4B - not used
|o1_runNPCScript
  cmd_specificItemInInventory stub 4B - not used
|not used
  cmd_mobileCharacterInScene stub 4D - not used
|-
  cmd_hideMobileCharacter stub 4E - not used? (many false positives, but since unhide isn't implemented I don't think that exists)
|3E
  cmd_unhideMobileCharacter stub 4F - not used
|o1_loadSoundFile
  cmd_pageFlip stub 65 - not used
|not used
  cmd_addItemToInventory stub 69 - not used
|-
  cmd_intPrint stub 6A - not used
|4B
  cmd_shakeScreen stub 6B - 2 times used (only used in DEAD.EMC)
|o1_specificItemInInventory
  cmd_fadeEntirePalette stub 7E - 2 times used (BONKBG.EMC, POTION.EMC)
|not used
  cmd_setPaletteRange stub 84 - not used
|-
  cmd_setPlayingLoop stub 92 - 2 times used (GRAVE.EMC, CAVEB.EMC - only used on failing copy protection, exit do DOS )
|4D
  cmd_brandonToStoneSequence stub 93 - 2 times used (GRAVE.EMC, CAVEB.EMC - only used on failing copy protection)
|o1_mobileCharacterInScene
  cmd_pauseMusicSeconds stub 96 - 12 times used (broken,emcav,enter,foresta,gemcut,grave,healer,landing,potion,sorrow,spell, wise)
|not used
  cmd_resetMaskRegion stub 97 - not used
|-
|4E
|o1_hideMobileCharacter
|not used? (many false positives, but since unhide isn't implemented I don't think that exists)
|-
|4F
|o1_unhideMobileCharacter
|not used
|-
|65
|o1_pageFlip
|not used
|-
|69
|o1_addItemToInventory
|not used
|-
|6A
|o1_intPrint
|not used
|-
|84
|o1_setPaletteRange
|not used
|-
|92
|o1_setPlayingLoop
|2 times used (GRAVE.EMC, CAVEB.EMC - only used on failing copy protection, exit to DOS)
|-
|97
|o1_resetMaskRegion
|not used
|}
Clem
334

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