The previous fix for this bug was incorrect; it only happened
to work because of another bug: the number of exports was being
read incorrectly (reading the byte size of the export block, not
the number of exports), so the validation check for the export
number always passed. Then, the "small" offsets that were seen
were actually either invalid reads into the header of the next
block in the script (KQ4), or reads into the bad first export
table which contained an unfilled offset (Camelot).
Once the incorrect number of exports was fixed, the previous "fix"
broke in KQ4 because the export number validation started to work
correctly and the first export table does not have enough entries
(needs 2, has 1).
This patch fixes the bug by using the last export table in SCI0
scripts instead of the first export table. (This does not affect
most scripts, since only the buggy scripts have more than one
export table.)
Fixes Trac#9731.
1. pushi opcode now displays decimal value and selector value (if
one exists) in-line
2. lofsa, lofss, and super opcodes now display resolved
object/class names
3. Opcode arguments are visually aligned
Exports with a zero offset are supposed to point to the start of
the code block in the script hunk, but they were being ignored.
This may also apply to SCI1.1 games, but until that can be
verified, this fixes the zero-offset in only SCI32 games for now.
Previously, this was using the offset of the property dict inside the
script. However, this isn't unique. For example, SQ6's DPath and
PolyPath classes both have their property dict at offset 8 of their
respective scripts. This would break Obj::isMemberOf.
Closes#846.
- 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
implement string collecting for SCI3
implement object offset collecting for SCI0-SCI2
implement said-str offset collecting for SCI0-SCI1
add new debug command scro / script_objects
add new debug command script_said
string without terminating NUL now a warning
the latter happens in qfg2 for amiga room 84
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]*$//'
Having a deleted script with non-zero lockers had the side effect of
making the deleted script re-appear in the GC's work list, including
any (deleted) objects in the script.
This should be the root cause of bugs #3299458 and #3295849, so
also delete the workaround added for that in 35086fe1.
Colin Snover
Willem Jan Palenstijn
Martin Kiewitz
Filippos Karapetis
Johannes Schickel
Filippos Karapetis
Max Horn
Matthew Hoops
strangerke