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SCI Development Tools / Recreating complete QFG1 EGA source code
« on: June 12, 2016, 11:05:00 PM »
So I've decompiled QFG1 EGA, and am going through trying to replace any proc# or localproc# with actual descriptive names (same for global variables, etc), and it's going fairly well. I'd say I'm learning a lot about SCI scripting in the process, but there are a couple of items/questions that have come up that I'm not sure how to interpret.
1) in script 968 (SmoothLooper) the doit method of the SmoothLooper class decompiles into this:
2) kernel_113 is called in several scripts (1, 255, 202, 32). Is this an undocumented kernel call? No clue what it is supposed to do.
3) DoSound. The documentation (http://scicompanion.com/Documentation/Kernels/DoSound.html?highlight=sndCHECK_DRIVER) says that DoSound(sndCHECK_DRIVER) only returns TRUE or FALSE, depending if the sound driver is installed, however there is code in QFG1 to the effect of (DoSound(sndCHECK_DRIVER) == 1), (DoSound(sndCHECK_DRIVER) <= 4), (DoSound(sndCHECK_DRIVER) > 4), implying it is more along the lines of the number of music channels present.
That's about all I have for now. Thanks for reading.
1) in script 968 (SmoothLooper) the doit method of the SmoothLooper class decompiles into this:
Code: [Select]
(method (doit &tmp [temp0 2])
CorruptFunction_CantDetermineCodeBounds
)
So clearly something unexpected is going on with the byte-code. I'm not really too keen on understanding the raw byte-code, but at the very least is there a way to force SCICompanion to try converting it to asm? Unless anybody has an other suggestion?2) kernel_113 is called in several scripts (1, 255, 202, 32). Is this an undocumented kernel call? No clue what it is supposed to do.
3) DoSound. The documentation (http://scicompanion.com/Documentation/Kernels/DoSound.html?highlight=sndCHECK_DRIVER) says that DoSound(sndCHECK_DRIVER) only returns TRUE or FALSE, depending if the sound driver is installed, however there is code in QFG1 to the effect of (DoSound(sndCHECK_DRIVER) == 1), (DoSound(sndCHECK_DRIVER) <= 4), (DoSound(sndCHECK_DRIVER) > 4), implying it is more along the lines of the number of music channels present.
That's about all I have for now. Thanks for reading.