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Commit Graph

25 Commits

Author SHA1 Message Date
Carl-Henrik Skårstedt
e658b0c03d Disassembler calling graph skips fallthrough labels
- significantly cleaner calling graph in complex projects.
2016-01-14 22:08:38 -08:00
Carl-Henrik Skårstedt
27e5f766cd Disassembler swapping the order of a couple of things
- Re-evaluating code separators (jmp, rts, etc) before determining local
labels
- Re-evaluated label separator was off by one.
2015-12-18 22:41:16 -08:00
Carl-Henrik Skårstedt
8e6ac7d38b Fixed disassembler call graph function fall-through
- forgot that functions can fall through to the next label if there is
nothing separates the function from the next label
2015-12-17 23:27:16 -08:00
Carl-Henrik Skårstedt
9b02e018aa Missing character 2015-12-16 22:21:35 -08:00
Carl-Henrik Skårstedt
cac8f1e9cb Disassembler calling graph
- graph command line option adds a calling graph to the disassembly file
- graph+bra includes branches in the calling graph
- re-evaluating separating code/data segments after the segments have
been culled.
- Added a c64kernal.lbl file that includes kernal calls
2015-12-16 22:19:25 -08:00
Carl-Henrik Skårstedt
219323d911 Improving some code and data distinction rules
- If an address is unreachable it is data even if a branch crosses
- If a branch crosses data then that branch can be valid code
- If a segment is initially considered code but not reachable after all
is said and done it is reverted to data
2015-12-14 22:07:30 -08:00
Carl-Henrik Skårstedt
1bf3afa0d0 Disassembler memory access check 2015-12-14 00:27:12 -08:00
Carl-Henrik Skårstedt
7902863ccc Minor disassembler annoyances addressing
- Label ranges outside of data would be ignored for instructions
- If last code reference was a jump table then its references would get
stripped
2015-12-12 14:00:36 -08:00
Carl-Henrik Skårstedt
81f0364ab2 Disassembler local label improvement
- Determination for negative branches to local labels were one off which
meant lots of unnecessary local labels at end of long functions
- struse null/0-length check was reverse causing access to 0
2015-12-12 13:22:23 -08:00
Carl-Henrik Skårstedt
f6c5b08224 Fixes to disassembling code pointer arrays
- Removing some filters that pulled out relevant references from pointer
arrays
- Separating 6502 illegal opcodes (6502ill) and WDC specific 65C02
instructions (65C02WDC) from general disassembly
- invalid instructions will always be disassembled as dc.b $hh instead
of the non-assemblable instruction
2015-12-11 23:01:52 -08:00
Carl-Henrik Skårstedt
3c470af40e Adding read-only labels to disassembler and Atari 7800 memory map file
- Changed how the instruction lookup is stored to more easily
distinguish between read-only and other instructions
- Added Atari 7800 labels (a78.lbl)
- Added a keyword "read" to declare a read-only version of a data label
to the labels file
- Fixes to determining addresses representing data or code
- Fixed missing data blocks that were exactly 16 bytes
2015-12-10 22:27:49 -08:00
Carl-Henrik Skårstedt
58c241952f Adding pointer array to data
- Allow assign data type to pointer arrays (label = start-end pointers
data comment)
2015-12-09 23:53:43 -08:00
Carl-Henrik Skårstedt
6bdf6b0023 Better logic for what separates code segments
- Allows jump tables without separating between each instruction
- Branch to instruction after jump instruction does not inject a
function separator
- Jump relative does not reference code
2015-12-09 18:22:07 -08:00
Carl-Henrik Skårstedt
8a37b0dc32 Fix user defined labels not keeping up with current address
- can skip multiple labels per instruction
2015-12-09 00:06:38 -08:00
Carl-Henrik Skårstedt
6c843c99fd Disassembler improvements
- More aggressive local labels
- Double checking code sections after detection phase
- Zero page instructions added to labels (65816 uses direct page and
will generate slightly off labels)
2015-12-07 22:26:04 -08:00
Carl-Henrik Skårstedt
e55416bb8d Disassembler improvements and c64 labels file
- Adding a labels file with all the c64 hardware addresses
- Labels are tracked outside of the binary file range
- Zero page tracking
- Improved code vs data tracking a bit
2015-12-03 22:53:16 -08:00
Carl-Henrik Skårstedt
355dfd02df Local labels attempted in disassembler 2015-11-30 23:03:51 -08:00
Carl-Henrik Skårstedt
98752c0036 Disassembler label file additions
- adding ranges to labels file
- bug fixes
2015-11-29 22:24:42 -08:00
Carl-Henrik Skårstedt
824d02095a Disassembler improvements
- Added a way to instrument labels for the disassembler
- Added pointers section to disassembler, needs to be instrumented
- Fixes
2015-11-28 14:21:54 -08:00
Carl-Henrik Skårstedt
8e36992489 Bug fixes
- rtl instruction had wrong opcode
- disassembler works a lot better with correct rtl, even for 6502
- disassembler can specify n bytes of data before code starts in src
mode (data=initial data size)
2015-11-27 18:01:53 -08:00
Carl-Henrik Skårstedt
d73b7c8581 Iterating on the disassembler
- exploring rules to better distinguish between code and data
2015-11-19 23:50:59 -08:00
Carl-Henrik Skårstedt
bf2e281751 Resolved OMF Directpage+stack seg, Disassembler "smarter"
- Using a section named DirectPage_Stack to adjust same named segment in
OMF file
- Resolving all zero page sections to fixed addresses before exporting
OMF
- Disassembler does more shenanigans to output more assemblable code
- Automatically determine the code address for c64 prg files
2015-11-17 23:47:35 -08:00
Carl-Henrik Skårstedt
055c92ded7 README.MD for x65dsasm was a bit out of date 2015-11-17 00:00:05 -08:00
Carl-Henrik Skårstedt
5792f6ee7b Copied in struse.h, added some reference visualization in x65dsasm
- x65dsasm now adds labels for internal referenced addresses
- x65dsasm has a src option that displays disassembly as code that could
assemble as is
- fixed the help output for dump_x65
- copied in struse.h
2015-11-16 23:55:16 -08:00
Carl-Henrik Skårstedt
89ed6d25cc Adding a disassembler 2015-11-04 21:15:22 -08:00