This is needed for future support of large SCI3 scripts. The program
counter is isolated and does not interfere with other parts of the VM,
plus it does not get stored in saved games, so it's pretty straightforward
to convert
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)
This tries to make our code a bit more compliant with our code formatting
conventions. For future use, this is the command I used:
git ls-files "*.cpp" "*.h" | xargs sed -i -e 's/[ \t]*$//'
- Removed the CallsStruct intermediate stack. Calls are inserted directly
in the execution stack
- Added a constructor for the ExecStack struct and removed
add_exec_stack_varselector() and add_exec_stack_entry()
When the ABORT_ON_INFINITE_LOOP define is defined in vm.cpp, the VM will now
abort in cases where a conditional statement is followed by an unconditional
jump (which will most likely lead to an infinite loop). Aids in detecting
infinite loop bugs such as #3040722.
This version only handles signed integers. The modulo operator was changed in
SCI0 late (Iceman, and perhaps all SCI0 0.000.685 and later) so that it handles
negative numbers as well. We need to see if there really is a need to keep two
different modulo operators (which will only be necessary if any SCI0 game asks
for the modulo of a negative number by mistake, or a number larger than 32767).
Thus, error out in such a case for SCI0, so that this can be investigated
properly
This refactoring reduces a lot of code duplication, allows for better control,
makes the code more readable and allows us to remove a lot of now unneeded
workarounds
The handling has been moved inside readPMachineInstruction(), instead of run_vm(), as a
lot of parts of the code depend on this function handling all opcodes correctly (e.g. the
script dissassembler, the features class, find_callk etc)
svn-id: r55154
- Obtain speech/subtitle options from the ScummVM GUI and set them in CD games.
- Also, set simultaneous speech and subtitles in games that support them
(currently SQ4 CD and Freddy Pharkas CD). There is no GUI option for setting
simultaneous speech and subtitles in Freddy Pharkas CD, so this is the only
current way of achieving this (unless the text speed slider inside the Freddy
Pharkas options window is repurposed - but that will require extensive changes)
svn-id: r55005
Martin Kiewitz
Johannes Schickel
Filippos Karapetis
Filippos Karapetis
Willem Jan Palenstijn
Max Horn
Lars Skovlund
strangerke
Ori Avtalion
D G Turner
Lars Persson
Lars Skovlund