3/20/2024 0 Comments Dosbox debugger commandsexe File Decompiled what should I search for ? I got the following output :- DEBUG: Memory breakpoint : A000:0000 - 9F -> 15 what does this output mean ? In IDA Pro 5 with the game. I typed the bpm A000:0 in Dosbox X Debugger and then ran the game and changed to a view showing the Plane in Question. I am trying to find In IDA Pro 5 the Assembly Code, For a Plane in a WW2 Dos Game. It will be likely that related functions will be next to each other, so once you've looked into the given identified function, you may also be able to review previous or following functions to see if they have identifiable graphic routines." Using the previously discussed techniques, you can find the same place in your IDA disassembly, and look into reversing that method first. Then whichever routine modifies it first will trigger the breakpoint. So you could do 'bpm A000:0' to set a breakpoint on the first byte of the screen memory (i.e. It has a use command called 'bpm' that allow you to set a memory breakpoint, which then gets triggered if the given memory address changes. The other alternative is to use the DosBox Debugger. Since this is the area of memory that graphics are commonly displayed in, it can be a quick way to locate graphic routines. The first is to entirely use IDA, and simply search for immediate values of 'A000h'. "For finding the graphic routines you have two options: On a Reverse Engineering Website, I read the following :. Sorry to be a nuisance I'd check the source and do further testing if this wasn't on subversion □ Reply 149 of 159, by ripsaw8080 For now I have to use DOSBox-X because the binary I'm working with is packed, so I need to dump out the unpacked segments. Perhaps also add to the DEBUG message, "Wrote file to: ". The file creation is likely failing, and although I haven't looked at the source - I'm certain there are probably some additional checks to verify the file was created, written, and closed correctly. Just to reiterate, I've done full system scans for the files in case I missed obviously places where the memdumpbin/memdump would put the files. My mount is in C:\dosprogs, DOSBox-X runs out of my user Downloads folder, DOSBox runs out of C:\Program Files, that's why I thought maybe its a permissions issue. Again for some reason this works with DOSBox-X and not regular DOSBox. I just tested again by running as an admin. What is the current directory in your case? I wouldn't think so, but then I'd also think the file is being created.
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