Hoyle5 will spin on kGetTime between 15 and 300 ticks in multiple
game scripts in order to delay execution (for example, after
choosing opponents and clicking "okay"). This causes ScummVM to
be unresponsive and wastes CPU time.
This commit patches the spin subroutines to instead call a kernel
function (kWait) that waits without a spin loop. This kernel
function was removed in SCI2, and has been added back in ScummVM
specifically for Hoyle5, so this patch will not work with the
original interpreter.
SCI3 includes four new opcodes:
* op_info[0x26][0] puts -info- flag in accumulator
* op_infoSP[0x26][1] pushes -info- flag to stack
* op_superP[0x27][0] puts -super- reference in accumulator
* op_superPSP[0x27][1] pushes -super- reference to stack
The implementation of these opcodes was correct already, but the
opcode names given were a bit misleading (the value is not always
stored to accumulator), and magic numbers were used for these
opcodes in places.
A review of the opcode table in Phant2 indicates that there are
no other new opcodes for SCI3.
This change invalidates earlier SCI32 save games, which separated
arrays and strings in an incompatible manner. Old save games
contain invalid references to a string segment which no longer
exists, and contain incompatible array structures that lack
critical type information.
ExecStack now stores the kernel call number as well as the subfunction.
This allows kStub and backtraces to log the actual subfunction called.
The kernel call number in ExecStack used to be stored in the
debugSelector field. It now has its own field, to avoid confusion.
The demo versions of these games were using a very different engine -
SCI1.1 vs SCI2/SCI2.1. Thus, we split them into different game IDs,
to avoid mixing specific game checks for them, as well as specific
game workarounds, which are different for the demos than the full
versions. Also, the demos should be working when SCI32 is disabled.
For these games, we don't use ADGF_DEMO, to avoid game IDs like
foodemo-demo
Instead of choosing Windows as platform, users can now also simply
click this option for Gabriel Knight 1 + King's Quest 6
Defaults to high resolution graphics
- Detection works via signatures (couldn't find a better way)
- new kString subcalls were introduced SCI2.1 LATE
- kString now has signatures and is split via subcall table
- kString fix, so that KQ7 doesn't crash, when starting a chapter
- Sci2StringFunctionType removed, because no longer needed
No functionality change has been made with this commit. This avoids
setting and getting the reg_t members directly, and is the basis of any
future work on large SCI3 scripts (larger than 64KB)
SCI scripts can send stale pointers to kernel functions (e.g. after
loading a saved game). This is normal in some cases (such as kDisplay
and kGraphRestoreBox), and their signatures are set to allow invalid
pointers.
Thus, in such cases, allow invalid pointers, as the kernel functions
will handle them themselves. Fixes bug #3412002, and properly fixes bugs
#3389579, #3292251, #3308087 and #3056811. Removed a relevant TODO.
This is a first step towards getting rid of all uses of regular printf,
fprintf, vprintf, vfprintf, puts, fputs, etc. in our codebase.
The name format() reflects the purpose of the function, and parallels
String.format() in Java, boost::format, and others.
svn-id: r54004
This command can be used to find the object methods (including their
corresponding objects and owner scripts) that call a specific kernel
call. This shall aid us track all the spots where a particular kernel
function is called from, therefore it'll be a bit easier to find
examples where unimplemented kernel functions are called
svn-id: r53646
hoyle 3 is using kCanBeHere, but it has cantBeHere and canBeHere selectors so our auto detection would fail
it also has a cantBeHere stub in Actor, thus it won't set acc at all. We reset acc because of that before calling cantBeHere selector (!) of the actors (canBeHere isnt used) so that we wont get a collision otherwise because acc is non zero when calling kDoBresen (fixes all sorts of bugs, clone2727 should clean it up :P
svn-id: r51485
Colin Snover
Martin Kiewitz
Willem Jan Palenstijn
Filippos Karapetis
Johannes Schickel
Matthew Hoops
Filippos Karapetis
strangerke
Lars Skovlund
Max Horn