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  3. Who needs Ghidra when you have autism and a box of markers?

Who needs Ghidra when you have autism and a box of markers?

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  • foone@digipres.clubF foone@digipres.club

    @gloriouscow oof. Doing this on paper sounds so painful

    (I was doing this on paper back in 2003, but I've mostly suppressed those memories)

    gloriouscow@oldbytes.spaceG This user is from outside of this forum
    gloriouscow@oldbytes.spaceG This user is from outside of this forum
    gloriouscow@oldbytes.space
    wrote last edited by
    #14

    @foone this is all circa 1999-2001. maybe it is just a phase every reverser goes through.

    foone@digipres.clubF rey@toot.catR 2 Replies Last reply
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    • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

      @foone this is all circa 1999-2001. maybe it is just a phase every reverser goes through.

      foone@digipres.clubF This user is from outside of this forum
      foone@digipres.clubF This user is from outside of this forum
      foone@digipres.club
      wrote last edited by
      #15

      @gloriouscow this is just what we had to do before computers were good at things

      1 Reply Last reply
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      • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

        Who needs Ghidra when you have autism and a box of markers?

        mellivora@im-in.spaceM This user is from outside of this forum
        mellivora@im-in.spaceM This user is from outside of this forum
        mellivora@im-in.space
        wrote last edited by
        #16

        @gloriouscow I really wish I could afford a printer right now. :(((

        1 Reply Last reply
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        • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

          And here is the entire point of digging all this out. @foone was talking about reverse engineering compression - this is how it started. This is an RLE encoded sprite. The highlighter sections and boxed sections are RLE opcodes and compressd runs, and the bytes with curvy underlines are uncompressed pixel spans

          gloriouscow@oldbytes.spaceG This user is from outside of this forum
          gloriouscow@oldbytes.spaceG This user is from outside of this forum
          gloriouscow@oldbytes.space
          wrote last edited by
          #17

          well, when you play I Have No Mouth And I Must Scream using ScummVM, some of this shit may still be in there, somewhere.

          Maybe.

          1 Reply Last reply
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          • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

            @foone this is all circa 1999-2001. maybe it is just a phase every reverser goes through.

            rey@toot.catR This user is from outside of this forum
            rey@toot.catR This user is from outside of this forum
            rey@toot.cat
            wrote last edited by
            #18

            @gloriouscow @foone having a big "wait, that counts as reverse engineering? oh gods, yeah, it would have to, wouldn't it" moment over here

            tractor feed was so good for this

            gloriouscow@oldbytes.spaceG 1 Reply Last reply
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            • rey@toot.catR rey@toot.cat

              @gloriouscow @foone having a big "wait, that counts as reverse engineering? oh gods, yeah, it would have to, wouldn't it" moment over here

              tractor feed was so good for this

              gloriouscow@oldbytes.spaceG This user is from outside of this forum
              gloriouscow@oldbytes.spaceG This user is from outside of this forum
              gloriouscow@oldbytes.space
              wrote last edited by
              #19

              @rey @foone

              i didn't say I was a good reverser

              1 Reply Last reply
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              • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                Who needs Ghidra when you have autism and a box of markers?

                blue_on@qdon.spaceB This user is from outside of this forum
                blue_on@qdon.spaceB This user is from outside of this forum
                blue_on@qdon.space
                wrote last edited by
                #20

                @gloriouscow
                isn't it tedious?

                gloriouscow@oldbytes.spaceG 1 Reply Last reply
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                • blue_on@qdon.spaceB blue_on@qdon.space

                  @gloriouscow
                  isn't it tedious?

                  gloriouscow@oldbytes.spaceG This user is from outside of this forum
                  gloriouscow@oldbytes.spaceG This user is from outside of this forum
                  gloriouscow@oldbytes.space
                  wrote last edited by
                  #21

                  @blue_on You'd think so, but it's more methodical. I remember just laying on the floor with the listings spread out and listening to music while doing. After a while you just zone out, it's meditative

                  gloriouscow@oldbytes.spaceG 1 Reply Last reply
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                  • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                    @blue_on You'd think so, but it's more methodical. I remember just laying on the floor with the listings spread out and listening to music while doing. After a while you just zone out, it's meditative

                    gloriouscow@oldbytes.spaceG This user is from outside of this forum
                    gloriouscow@oldbytes.spaceG This user is from outside of this forum
                    gloriouscow@oldbytes.space
                    wrote last edited by
                    #22

                    @blue_on the closest experience i have to it now is tracing out boards in KiCad. put on some music, and just follow traces with the mouse from chip to chip. thousands and thousands of traces...

                    1 Reply Last reply
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                    • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                      Who needs Ghidra when you have autism and a box of markers?

                      furrybeta@shark.communityF This user is from outside of this forum
                      furrybeta@shark.communityF This user is from outside of this forum
                      furrybeta@shark.community
                      wrote last edited by
                      #23

                      @gloriouscow I sometimes think that might be better than ghidra

                      1 Reply Last reply
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                      • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                        Who needs Ghidra when you have autism and a box of markers?

                        fahrni@curmudgeon.cafeF This user is from outside of this forum
                        fahrni@curmudgeon.cafeF This user is from outside of this forum
                        fahrni@curmudgeon.cafe
                        wrote last edited by
                        #24

                        @gloriouscow @goosey Dot matrix printed source code is the best! I had tons of it, at one time, all marked up like you’ve done here.

                        1 Reply Last reply
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                        • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                          Who needs Ghidra when you have autism and a box of markers?

                          rootwyrm@weird.autosR This user is from outside of this forum
                          rootwyrm@weird.autosR This user is from outside of this forum
                          rootwyrm@weird.autos
                          wrote last edited by
                          #25

                          @gloriouscow I do, because I threw out my tractor feed dot matrix printers over two decades ago.

                          1 Reply Last reply
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                          • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                            Who needs Ghidra when you have autism and a box of markers?

                            ask@infosec.exchangeA This user is from outside of this forum
                            ask@infosec.exchangeA This user is from outside of this forum
                            ask@infosec.exchange
                            wrote last edited by
                            #26

                            @gloriouscow wow amazing. How much time did all this take?

                            gloriouscow@oldbytes.spaceG 1 Reply Last reply
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                            • ask@infosec.exchangeA ask@infosec.exchange

                              @gloriouscow wow amazing. How much time did all this take?

                              gloriouscow@oldbytes.spaceG This user is from outside of this forum
                              gloriouscow@oldbytes.spaceG This user is from outside of this forum
                              gloriouscow@oldbytes.space
                              wrote last edited by
                              #27

                              @ask I worked on this over a period of two years as best as I can figure

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                              • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                                Who needs Ghidra when you have autism and a box of markers?

                                taleb@wetdry.worldT This user is from outside of this forum
                                taleb@wetdry.worldT This user is from outside of this forum
                                taleb@wetdry.world
                                wrote last edited by
                                #28

                                @gloriouscow this is unbelievably crazy for a gamedev, what type of game even is this produced for?

                                gloriouscow@oldbytes.spaceG 1 Reply Last reply
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                                • taleb@wetdry.worldT taleb@wetdry.world

                                  @gloriouscow this is unbelievably crazy for a gamedev, what type of game even is this produced for?

                                  gloriouscow@oldbytes.spaceG This user is from outside of this forum
                                  gloriouscow@oldbytes.spaceG This user is from outside of this forum
                                  gloriouscow@oldbytes.space
                                  wrote last edited by
                                  #29

                                  @taleb it's a point and click adventure game, very similar to LucasArts's SCUMM engine.

                                  1 Reply Last reply
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                                  • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                                    Who needs Ghidra when you have autism and a box of markers?

                                    peterrenshaw@ioc.exchangeP This user is from outside of this forum
                                    peterrenshaw@ioc.exchangeP This user is from outside of this forum
                                    peterrenshaw@ioc.exchange
                                    wrote last edited by
                                    #30

                                    @gloriouscow read long enough, the listings let you write c-code translation ☺️

                                    1 Reply Last reply
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                                    • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                                      Who needs Ghidra when you have autism and a box of markers?

                                      abrasive@digipres.clubA This user is from outside of this forum
                                      abrasive@digipres.clubA This user is from outside of this forum
                                      abrasive@digipres.club
                                      wrote last edited by
                                      #31

                                      @gloriouscow I really love that you disassembled this in IDA, with all its interactive abilities for markup and analysis, in order to print it and go ham with the pencils!

                                      Not snark, in case that's not obvious -- I genuinely do. I wish I still had the time to sit with things in this way and with this depth, though I never had your penmanship! And I have a lot of admiration for anyone with the short-term memory to be able to cohere a linear disassembly into a coherent picture

                                      1 Reply Last reply
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                                      • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                                        Who needs Ghidra when you have autism and a box of markers?

                                        lopta@mastodon.socialL This user is from outside of this forum
                                        lopta@mastodon.socialL This user is from outside of this forum
                                        lopta@mastodon.social
                                        wrote last edited by
                                        #32

                                        @gloriouscow Is that why I like my coloured pens?

                                        lopta@mastodon.socialL 1 Reply Last reply
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                                        • gloriouscow@oldbytes.spaceG gloriouscow@oldbytes.space

                                          Who needs Ghidra when you have autism and a box of markers?

                                          f4grx@chaos.socialF This user is from outside of this forum
                                          f4grx@chaos.socialF This user is from outside of this forum
                                          f4grx@chaos.social
                                          wrote last edited by
                                          #33

                                          @gloriouscow the limit is paper

                                          1 Reply Last reply
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