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List segments in table form

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Joshua Bell
2018-05-06 23:41:45 -07:00
committed by GitHub
parent 0fba98f1f2
commit 4ffa58fac8
1 changed files with 25 additions and 21 deletions
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desktop/README.md
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@@ -7,9 +7,11 @@
A short (8k) loader program. This is responsible for copying A short (8k) loader program. This is responsible for copying
the rest to a RAM card (if available), then invoking the main app. the rest to a RAM card (if available), then invoking the main app.
The second half is used to "Down load", i.e. copy
Selector entries to RAMCard on first boot.
NOTE: The second half may be used for "Down load", i.e. copy The file is present in the original distribution as `DESKTOP1` but
Selector entries to RAMCard as well. is renamed `DESKTOP.SYSTEM` in many disk images to be launched at boot.
## DESKTOP2.$F1 ## DESKTOP2.$F1
@@ -20,25 +22,27 @@ more code segments swapped in dynamically.
The file is broken down into multiple segments: The file is broken down into multiple segments:
* segment 0: load - A$2000-$257F, L$0580, B$000000 (`loader.s`; Loader) | Purpose | File Offset | Bank | Address | Length | Sources |
* segment 1: aux - A$4000-$BFFF, L$8000, B$000580 (`mgtk.s`, `desktop_aux.s`; MGTK, DeskTop) |---------------|-------------|--------|--------------|--------|---------------------------|
* segment 2: auxlc - A$D000-$ECFF, L$1D00, B$008580 (`desktop_res.s`; DeskTop) | Loader | B$000000 | Main | A$2000-$257F | L$0580 | `loader.s` |
* segment 3: auxlc - A$FB00-$FFFF, L$0500, B$00A280 (`desktop_res.s`; DeskTop) | MGTK/DeskTop | B$000580 | Aux | A$4000-$BFFF | L$8000 | `mgtk.s`, `desktop_aux.s` |
* segment 4: main - A$4000-$BEFF, L$7F00, B$00A780 (`desktop_main.s`; DeskTop) | DeskTop | B$008580 | Aux LC | A$D000-$ECFF | L$1D00 | `desktop_res.s` |
* segment 5: main - A$0800-$0FFF, L$0800, B$012680 (`desktop_main.s`; Initializer) | DeskTop | B$00A280 | Aux LC | A$FB00-$FFFF | L$0500 | `desktop_res.s` |
* segment 6: main - A$0290-$03EF, L$0160, B$012E80 (`invoker.s`; Invoker) | DeskTop | B$00A780 | Main | A$4000-$BEFF | L$7F00 | `desktop_main.s` |
* overlays dynamically loaded for these actions: | Initializer | B$012680 | Main | A$0800-$0FFF | L$0800 | `desktop_main.s` |
* disk copy - A$0800-$09FF, L$0200, B$012FE0 (`ovl1.s`) | Invoker | B$012E80 | Main | A$0290-$03EF | L$0160 | `invoker.s` |
* which loads - A$1800-$19FF, L$0200, B$0131E0 (`ovl1a.s`) | Disk Copy 1/4 | B$012FE0 | Main | A$0800-$09FF | L$0200 | `ovl1.s` |
* which loads - A$D000-$F1FF, L$2200, B$0133E0 (`ovl1b.s`; overwrites the aux LC) | Disk Copy 2/4 | B$0131E0 | Main | A$1800-$19FF | L$0200 | `ovl1a.s` |
* and... - A$0800-$12FF, L$0B00, B$0155E0 (`ovl1c.s`) | Disk Copy 3/4 | B$0133E0 | Aux LC | A$D000-$F1FF | L$2200 | `ovl1b.s` |
* format/erase - A$0800-$1BFF, L$1400, B$0160E0 (`ovl2.s`) | Disk Copy 4/4 | B$0155E0 | Main | A$0800-$12FF | L$0B00 | `ovl1c.s` |
* selector - A$9000-$9FFF, L$1000, B$0174E0 (`ovl3.s`) | Format/Erase | B$0160E0 | Main | A$0800-$1BFF | L$1400 | `ovl2.s` |
* common - A$5000-$6FFF, L$2000, B$0184E0 (`ovl4.s`; used by selector, copy, delete) | Selector 1/2 | B$0174E0 | Main | A$9000-$9FFF | L$1000 | `ovl3.s` |
* file copy - A$7000-$77FF, L$0800, B$01A4E0 (`ovl5.s`) | Common | B$0184E0 | Main | A$5000-$6FFF | L$2000 | `ovl4.s` |
* file delete - A$7000-$77FF, L$0800, B$01ACE0 (`ovl6.s`) | File Copy | B$01A4E0 | Main | A$7000-$77FF | L$0800 | `ovl5.s` |
* selector - A$7000-$77FF, L$0800, B$01B4E0 (`ovl7.s`) | File Delete | B$01ACE0 | Main | A$7000-$77FF | L$0800 | `ovl6.s` |
* (EOF is $01BCE0) | Selector 2/2 | B$01B4E0 | Main | A$7000-$77FF | L$0800 | `ovl7.s` |
(EOF is $01BCE0)
The DeskTop segments loaded into the Aux bank switched ("language The DeskTop segments loaded into the Aux bank switched ("language
card") memory can be used from both main and aux, so contain relay card") memory can be used from both main and aux, so contain relay