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Commit Graph

133 Commits

Author SHA1 Message Date
Jennifer Taylor
d9550122de Allow dumping decompiled bytecode to file for both raw afp/bsi pairs and TXP2 containers. 2021-05-10 00:12:54 +00:00
Jennifer Taylor
ee3e272787 Properly plumb verbosity flags to all of decompiler pieces, clean up some code. 2021-05-10 00:12:28 +00:00
Jennifer Taylor
08601dfcfe Initial parsing of AFP buttons, which is good enough to parse all of DDR PS3's files and decompile them. 2021-05-09 19:19:19 +00:00
Jennifer Taylor
aace5c7c13 Enable selective coverage printing to help narrow down missing sections in individual tags. 2021-05-09 19:19:02 +00:00
Jennifer Taylor
da1dba8f2b Implement GET_TIME opcode used by some DDR PS3 files. 2021-05-09 19:18:48 +00:00
Jennifer Taylor
95dc046043 Do a really half-assed job handling morph shapes. 2021-05-09 19:18:33 +00:00
Jennifer Taylor
1e6ab47c4a Better constants for a few more floating point values. 2021-05-07 05:16:00 +00:00
Jennifer Taylor
cbe084f137 Update some debug prints based on better understanding of one more tag section. 2021-05-06 19:38:13 +00:00
Jennifer Taylor
2252390706 Implement one more opcode needed for some Bishi levels. 2021-05-06 19:37:55 +00:00
Jennifer Taylor
459803d244 Only check IFS file size if we extracted it out of our own IFS. 2021-05-06 19:37:32 +00:00
Jennifer Taylor
9ce8b79b10 Implement define text tag, fill in some better understanding of the font tag from define text understanding. 2021-05-06 19:37:05 +00:00
Jennifer Taylor
5d26149298 Check in fix for non-compressed files. 2021-05-06 19:36:43 +00:00
Jennifer Taylor
74e3160588 Implement super support for IFS extraction. 2021-05-06 19:36:24 +00:00
Jennifer Taylor
b81d2aeaae Fix one last case where we can get surprise gotos. 2021-05-05 19:32:08 +00:00
Jennifer Taylor
203fdd3a10 Fix tricky case where we have nowhere to jump to after a While loop inside an if. 2021-05-05 19:31:45 +00:00
Jennifer Taylor
481c5a50ce Implement one more opcode that I've seen in Bishi levels. 2021-05-05 00:57:31 +00:00
Jennifer Taylor
9544287b13 Deal with empty if statements (usually compiled-out debug switches). 2021-05-05 00:56:59 +00:00
Jennifer Taylor
25278d76c5 Fix stack walking bug with respect to pre-converted if statements. 2021-05-05 00:56:33 +00:00
Jennifer Taylor
eba79ed3bc Add heuristic for parsing a troublesome flag in SWF object create tags. 2021-05-05 00:55:34 +00:00
Jennifer Taylor
f75b9f038e Implement a few more opcodes to get a few more Bishi files decompiling. 2021-05-05 00:55:02 +00:00
Jennifer Taylor
636e1876bc Add while loop detection and conversion. 2021-05-05 00:54:34 +00:00
Jennifer Taylor
2f79a6401d Fix massive bug which dropped function calls without returns from the finished output. 2021-05-05 00:53:58 +00:00
Jennifer Taylor
f09fd79a45 Add for loop detection and conversion. 2021-05-05 00:53:38 +00:00
Jennifer Taylor
e17f7c2bdb Add some tests for for/while loops in anticipation of optimizing output. 2021-05-05 00:53:02 +00:00
Jennifer Taylor
83f4f43e9e Implement a few more opcodes, fix stack ordering with multiple entries after reconciliation. 2021-05-04 02:32:32 +00:00
Jennifer Taylor
eddb8dc208 Several more code output optimizations done. 2021-05-04 02:32:04 +00:00
Jennifer Taylor
44b3628a85 Fix logic error in merging stacks when if statements didn't have a true and false body. 2021-05-04 02:31:07 +00:00
Jennifer Taylor
4790385022 Fix a logic error in if statement unwrapping, remove duplicated code in favor of a better true/false detection algorithm. 2021-05-04 02:30:37 +00:00
Jennifer Taylor
108d7c228d Handle having bytecode with no actual entries. 2021-05-04 02:29:53 +00:00
Jennifer Taylor
54b4c88d65 It seems that some bytecode leaves extra stuff on the stack sometimes, I think this is fine? 2021-05-04 02:29:27 +00:00
Jennifer Taylor
70c7448aa0 Fix nasty bug where sometimes we would have gotos without corresponding labels. 2021-05-02 03:50:48 +00:00
Jennifer Taylor
336ef6fc3d Check in some beta code for a new style of if detection that does not work yet. 2021-05-02 03:50:19 +00:00
Jennifer Taylor
7493db034f Add in basic throw, test code generation of mostly the same code as we tested the code graph with. 2021-05-02 03:49:35 +00:00
Jennifer Taylor
829597a871 Address the fact that I never handled END actions (they end processing as they are encountered). 2021-05-02 03:48:38 +00:00
Jennifer Taylor
261c3d7fbd Start a unit test framework for decompilation, in the hopes of eventually tracking down a logic bug in if extraction. 2021-05-02 03:48:07 +00:00
Jennifer Taylor
820a86845d Fix shallowest successor find when multiple nodes lead to the same location, fix if swap optimization and add BITAND and NOT_BITAND if support. 2021-04-26 03:24:47 +00:00
Jennifer Taylor
8cf219cb25 Avoid duplicating labels outside of and inside of do-while statements. Avoid going to or generating negative labels (artificially inserted nodes). 2021-04-26 03:24:24 +00:00
Jennifer Taylor
b7523b5521 Fix if processing by getting rid of negation early optimization. There was a path that
was negating but not being checked when doing the final render, leaving some if statements
inverted. Moved the optimization to a final pass for more generalized correctness.
2021-04-26 02:50:19 +00:00
Jennifer Taylor
2d4f6cadfb Much more complicated stack walking algorithm that chains the stack through chunks and also calculates when temporary variables are needed. 2021-04-26 01:28:48 +00:00
Jennifer Taylor
4d0bfe5637 Fix an edge case in if detection where we reused IDs incorrectly by stopping the reuse of IDs. Also, convert returns much earlier in the stack. 2021-04-26 01:27:51 +00:00
Jennifer Taylor
28ce17b996 Apparently some BishiBashi levels use an even older AP2 version. 2021-04-26 01:27:10 +00:00
Jennifer Taylor
06bd9d1245 Fix logic error where we lost if statement jump points because __gather_chunks was too-aggressively dropping end pointers. 2021-04-26 01:26:50 +00:00
Jennifer Taylor
6f78668e9a Fix up exceptions and add more invariant checks to loop generation code. 2021-04-26 01:25:32 +00:00
Jennifer Taylor
5761474bec Enforce another invariant for dominator calculation that would have caught another hard-to-find bug. 2021-04-26 01:24:25 +00:00
Jennifer Taylor
a09ad70de5 Improve a lot of exception message, enforce several more invariants in
graph generation that would have caught previous bugs, fix possible
issue with loop/dominator code if the entry code chunk was the beginning
of a loop.
2021-04-26 01:23:54 +00:00
Jennifer Taylor
44f5e5cdcc Fix control flow graph splitting function to handle functions that jump to the end offset as a way of exiting early. 2021-04-26 01:23:08 +00:00
Jennifer Taylor
6323ef9adf Implment several more opcodes in actual decompilation step. 2021-04-26 01:22:39 +00:00
Jennifer Taylor
6052deed3c Refactor code generation step to allow for nested function definitions, actually hook those up. 2021-04-26 01:22:14 +00:00
Jennifer Taylor
3a9b3a7b3c Pass indentation context into expression rendering for upcoming function definition support. 2021-04-26 01:21:42 +00:00
Jennifer Taylor
351e7060b8 Allow subclasses of verbose manager to check verbose state directly. 2021-04-26 01:21:03 +00:00