Difference between revisions of "SCI"

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(Added debugging info from the TODO page)
(Added engine status information from the TODO page)
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== History ==
== History ==
SCI was initially created in 1988 by Jeff Stephenson to replace [[AGI]]. The first game using it was [[King's Quest IV]] at the same year of its creation, which was simultaniously released with an AGI edition for lower-end machines.
SCI was initially created in 1988 by Jeff Stephenson to replace [[AGI]]. The first game using it was [[King's Quest IV]] at the same year of its creation, which was simultaniously released with an AGI edition for lower-end machines.
== Engine Status ==
=== Known games that can be completed ===
* Hero's Quest (10/24/2009)
* King's Quest 5 (10/18/2009)
* King's Quest 6 (10/2009)
* Larry 1 (01/01/2010)
* Larry 5 (10/19/2009)
* Larry 6 (10/2009)
* Laura Bow 1 Colonel's Bequest (12/28/2009)
* Space Quest 1 VGA (10/21/2009)
=== Currently running tests ===
* Quest for Glory 1 VGA - [md5], m_kiewitz
* Quest for Glory 2 - syke


== Resources ==
== Resources ==
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* [[SCI/FreeSCI|FreeSCI Documentation]]: Technical documentation about FreeSCI
* [[SCI/FreeSCI|FreeSCI Documentation]]: Technical documentation about FreeSCI
* [[SCI/Patches|SCI Patches]]: A list of known game patches for SCI games, both official and unofficial, which fix several game bugs and offer new features
* [[SCI/Patches|SCI Patches]]: A list of known game patches for SCI games, both official and unofficial, which fix several game bugs and offer new features


== Debugging ==
== Debugging ==
* Show priority and control map in original interpreter (SCI1/SCI11)
* Show priority and control map in original interpreter (SCI1/SCI11)
** search for A9 06 00 74 05 in original interpreter, replace with all 90h (NOP)
** search for A9 06 00 74 05 in original interpreter, replace with all 90h (NOP)


== External Links ==
== External Links ==

Revision as of 13:04, 22 January 2010

SCI
Engine developer FreeSCI team, jvprat
Companies that used it Sierra
Games that use it Sierra SCI Games, SCI Fan Games
Date added to ScummVM 2009-02-14
First release containing it None

About

SCI, which Sierra referred to as both the "SCript Interpreter" and the "Sierra's Creative Interpreter", is a p-machine style virtual machine for executing platform-independant, object-oriented code.

SCI was designed for 16 bit little endian computers, although there were later attempts to create 32 bit versions, LSCI, and SCI32. SCI was exclusively used by Sierra On-Line, Inc., to run its computer game series, with titles like Leisure Suit Larry 2-7, Space Quest 3-6, King's Quest 4-7, Quest for Glory 1-4, and several others.

The SCI engine in ScummVM is based on the code of the FreeSCI project, used with permission.


History

SCI was initially created in 1988 by Jeff Stephenson to replace AGI. The first game using it was King's Quest IV at the same year of its creation, which was simultaniously released with an AGI edition for lower-end machines.


Engine Status

Known games that can be completed

  • Hero's Quest (10/24/2009)
  • King's Quest 5 (10/18/2009)
  • King's Quest 6 (10/2009)
  • Larry 1 (01/01/2010)
  • Larry 5 (10/19/2009)
  • Larry 6 (10/2009)
  • Laura Bow 1 Colonel's Bequest (12/28/2009)
  • Space Quest 1 VGA (10/21/2009)

Currently running tests

  • Quest for Glory 1 VGA - [md5], m_kiewitz
  • Quest for Glory 2 - syke


Resources


Debugging

  • Show priority and control map in original interpreter (SCI1/SCI11)
    • search for A9 06 00 74 05 in original interpreter, replace with all 90h (NOP)


External Links