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74 lines
2.4 KiB
Markdown
74 lines
2.4 KiB
Markdown
Disassembly of the desk accessories:
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* [Show Text File](show_text_file.s) - in progress! 95% complete
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* [Calculator](calculator.s) - in progress! 99% complete
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* [Date](date.s) - in progress! 99% complete
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* [Puzzle](puzzle.s) - in progress! 99% complete
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* Sort Directory - _not started_
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New desk accessories:
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* [Show Image File](show_image_file.s) - complete!
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## Desk Accessory Details
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* Loaded at $800 through (at least) $14FF
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* Copy themselves from Main into Aux memory (same location)
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* Can call into ProDOS MLI and MGTK/A2D entry points ($4000, etc)
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* See [API.md](API.md) for programming details
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## Files
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* `Makefile` - cleans/builds targets
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* `orig/*.bin` - original binary (type $F1, start $800)
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* `infos/*.info` - da65 "info" file - used to inform disassembly
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* `*.s` - source (originally generated using da65, now modified)
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## Build Instructions
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On Unix-like systems (including Mac OS X) `make all` should build
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build the desk accessory files (original and new) and output
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files with a `.F1` suffix, representing the $F1 file type required.
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For the original DAs, the `.F1` and `.bin` files can be compared
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using `diff` to ensure that no changes have been introduced by the
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disassembly process.
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Tips:
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* While I'm disassembling (i.e. guessing what entry points do
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and what parameters are, converting .word to .byte, etc) I
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leave this running in another window:
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`while true; do clear; res/go.sh; sleep 1; done`
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## Install Instructions
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Transfer the `.F1` files to your Apple (real or virtual) ensuring you:
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* Drop the suffix
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* Replace `.` in the name with spaces
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* Ensure they have ProDOS file type `$F1`
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* Ensure they have start address `$800`
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The last two are tricky, and depend on how you're copying the files.
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My process is to use Virtual ][ on my Mac and mount a folder as a
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ProDOS drive; I copy one of the original DAs into the folder which
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gives it the $F1 filetype as a suffix and start address as an invisible
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resource stream. I then unmount the folder, overwrite the DA with
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a newly built one, and remount the folder.
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Finally:
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* Drop the files into your `A2.DESKTOP\DESK.ACC` folder
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* Restart so A2D picks up the new DA
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Tips:
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* You can use the Sort Directory DA to order the files, which controls
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the menu order:
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* Open the `A2.DESKTOP\DESK.ACC` folder
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* Press Open-Apple and click on each file in the desired order
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* Select Sort Directory from the Apple menu, and verify the order
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* Restart
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