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Mixer
Registered: Apr 2008
Posts: 452 |
ASM to C
Are there tools to convert a) disassembler output to some sort of C? b) macro assembler listings to C?
Such a thing can be done by substituting opcodes with their C-statement equals. Has anyone written more sophisticated tools for this? |
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oziphantom
Registered: Oct 2014
Posts: 490 |
Quote: Quote:Time to write a better tool.
some things just cant be done automatically - no matter how good the tool is.
some years ago i had the idiotic idea to make a basic v2 to C compiler... guess what, it cant be done either. you cant even convert the basic shit from the test/demo disk automatically :) with asm it will be even more impossible =P
What was the major blocker on basic to C? I would think it mostly has a 1:1 relationship. READ would be the tricky part. Making custom functions would probably need to be beyond scope, but what else? |
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Mixer
Registered: Apr 2008
Posts: 452 |
@Ozipanthom, true that the decompiler itself does not know that the lookup is a multiplication, and does not know what the multiplier is.
But this is already pretty good for my uses.
thing=mem[table[x]]+mem[otherTable[y]] |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
Quote:What was the major blocker on basic to C? I would think it mostly has a 1:1 relationship.
not at all. you can do terrible things in basic v2 which just wont translate to C at all. like GOSUB somewhere, but never RETURN. or reuse parts of one subfunction from another. even after building a control flow graph and duplicating the things that would collide, you'd still end up with dead ends. not worth the trouble, easier to just convert by hand :)
Quote:READ would be the tricky part.
no not really, thats one of the easier parts infact :=P |
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DanPhillips
Registered: Jan 2003
Posts: 39 |
Yay back on the forum :)
We once used a bunch of macros to convert 65816 to c.
All the object handling/ai was converted when going from Snes to PC dos.
I don't have a copy of the macros, but I do remember they were "horrendous" :)
Cheers
Dan |
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chatGPZ
Registered: Dec 2001
Posts: 11386 |
ah i did this once when i converted 6502 code to gameboy :)
however - this doesnt make the code more readable at all =D |
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Remdy
Registered: Feb 2019
Posts: 26 |
I did it for (a subset) of DOS/PMODEW 386 TASM assembly code: https://github.com/frranck/asm2c |
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