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* .Kartik K. Agaram2021-05-311-1/+1
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* disallow null tracesKartik K. Agaram2021-05-191-5/+14
| | | | | | We now use traces everywhere for error-checking. Null traces introduce the possibility of changing a functions error response, and therefore its semantics.
* .Kartik K. Agaram2021-05-191-1/+1
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* some boot-time heartbeat messagesKartik K. Agaram2021-05-071-0/+9
| | | | This will help us with some common debug scenarios.
* .Kartik K. Agaram2021-05-011-1/+1
| | | | Use sandbox background in the top line on the right.
* move color scheme closer to Solarized darkKartik K. Agaram2021-05-011-1/+1
| | | | | | | | | | | | | sed -i 's,0x12/bg=almost-black,0xdc/bg=green-bg,g' shell/*.mu sed -i 's, 0/bg, 0xc5/bg=blue-bg,g' shell/*.mu sed -i 's, 7/fg=trace, 0x38/fg=trace,g' shell/*.mu sed -i 's, 7/bg=grey, 0x5c/bg=black,g' shell/*.mu Still a few issues. Thanks Adrian Cochrane and Zach DeCook. https://floss.social/@alcinnz/106152068473019933 https://social.librem.one/@zachdecook/106159988837603417
* render definitions in 2 columnsKartik K. Agaram2021-04-291-1/+1
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* adjust some colors and paddingKartik K. Agaram2021-04-291-1/+4
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* devote 2/3rds of screen to definitionsKartik K. Agaram2021-04-251-2/+2
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* add some padding to the sandboxKartik K. Agaram2021-04-251-1/+1
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* clear old output when new run is in progressKartik K. Agaram2021-04-211-2/+2
| | | | I'm currently doing this extremely naively/slowly/uglily. Not a bottleneck.
* .Kartik K. Agaram2021-04-211-1/+1
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* .Kartik K. Agaram2021-04-211-1/+1
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* shell: show screen state during evaluationKartik K. Agaram2021-04-211-1/+1
| | | | | | | | | | | | | | All highly experimental. Current constraints: * No tail recursion elimination * No heap reuse * Keep implementation simple So it's slow, and I don't want to complicate it to speed it up. So I'm investing in affordances to help deal with the slowness. However, in the process I've taken the clean abstraction of a trace ("all you need to do is add to the trace") and bolted on call counts and debug-prints as independent mechanisms.
* shell: ctrl-r runs on real screen without a traceKartik K. Agaram2021-04-171-1/+47
| | | | | We run out of memory fairly early in the course of drawing a chessboard on the whole screen.
* load sandbox even if there are no globalsKartik K. Agaram2021-04-171-11/+9
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* heh, the current state actually overflows 2KBKartik K. Agaram2021-04-171-4/+4
| | | | | | It only works because the part that's truncated is cleanly the sandbox. I need better error-checking in `read`.
* loosening a few more buffersKartik K. Agaram2021-04-171-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mu computer now has more code in it: ( (globals . ( (hline1 . (fn () (screen y lo hi) (if (>= lo hi) () ((fn () (pixel screen lo y 12) (hline1 screen y (+ lo 1) hi)))))) (vline1 . (fn () (screen x lo hi) (if (>= lo hi) () ((fn () (pixel screen x lo 12) (vline1 screen x (+ lo 1) hi)))))) (hline . (fn () (screen y) (hline1 screen y 0 (width screen)))) (vline . (fn () (screen y) (vline1 screen y 0 (height screen)))) (andf . (fn (a b) (if a (if b 1 ()) ()))) (brline . (fn (screen x0 y0 x1 y1) ((fn (dx dy sx sy) ((fn (err) (brline1 screen x0 y0 x1 y1 dx dy sx sy err)) (+ dx dy))) (abs (- x1 x0)) (- 0 (abs (- y1 y0))) (sgn (- x1 x0)) (sgn (- y1 y0))))) (brline1 . (fn (screen x y xmax ymax dx dy sx sy err) (pixel screen x y 12) (if (andf (= x xmax) (= y ymax)) () ((fn (e2) (brline1 screen (if (>= e2 dy) (+ x sx) x) (if (<= e2 dx) (+ y sy) y) xmax ymax dx dy sx sy (+ err (+ (if (>= e2 dy) dy 0) (if (<= e2 dx) dx 0))))) (* err 2))))) )) (sandbox . (brline screen 1 1 5 5)) )
* data.img now has more than one sector of dataKartik K. Agaram2021-04-161-4/+5
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* shell: restore bindings after restartKartik K. Agaram2021-04-151-0/+15
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* .Kartik K. Agaram2021-04-151-4/+8
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* .Kartik K. Agaram2021-04-151-1/+4
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* .Kartik K. Agaram2021-04-151-5/+2
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* .Kartik K. Agaram2021-04-151-10/+8
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* add some structure to the serialization formatKartik K. Agaram2021-04-151-2/+16
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* .Kartik K. Agaram2021-04-151-0/+7
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* shell: load data disk as s-expr rather than stringKartik K. Agaram2021-04-141-13/+14
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* shell: starting to work on persistent globalsKartik K. Agaram2021-04-141-2/+8
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* .Kartik K. Agaram2021-04-141-0/+15
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* shell: move fake screen to sandboxKartik K. Agaram2021-04-101-1/+1
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* .Kartik K. Agaram2021-04-101-1/+1
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* shell: start of 'print' primitiveKartik K. Agaram2021-04-101-1/+1
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* .Kartik K. Agaram2021-04-081-2/+2
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* shell: create space to display globalsKartik K. Agaram2021-04-081-4/+2
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* shell: extensible array of globalsKartik K. Agaram2021-04-051-2/+5
| | | | I'm not bothering with full dynamic scope for now.
* .Kartik K. Agaram2021-04-051-1/+1
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* shell: save repl input to disk before runningKartik K. Agaram2021-04-051-2/+2
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* .Kartik K. Agaram2021-03-281-6/+6
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* explicitly pass screen and keyboard to mainKartik K. Agaram2021-03-261-4/+4
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* .Kartik K. Agaram2021-03-221-1/+1
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* shell: read initial expression from secondary diskKartik K. Agaram2021-03-211-0/+20
| | | | See shell/README.md for (extremely klunky) instructions.
* 7842 - new directory organizationKartik K. Agaram2021-03-031-0/+22
Baremetal is now the default build target and therefore has its sources at the top-level. Baremetal programs build using the phase-2 Mu toolchain that requires a Linux kernel. This phase-2 codebase which used to be at the top-level is now under the linux/ directory. Finally, the phase-2 toolchain, while self-hosting, has a way to bootstrap from a C implementation, which is now stored in linux/bootstrap. The bootstrap C implementation uses some literate programming tools that are now in linux/bootstrap/tools. So the whole thing has gotten inverted. Each directory should build one artifact and include the main sources (along with standard library). Tools used for building it are relegated to sub-directories, even though those tools are often useful in their own right, and have had lots of interesting programs written using them. A couple of things have gotten dropped in this process: - I had old ways to run on just a Linux kernel, or with a Soso kernel. No more. - I had some old tooling for running a single test at the cursor. I haven't used that lately. Maybe I'll bring it back one day. The reorg isn't done yet. Still to do: - redo documentation everywhere. All the README files, all other markdown, particularly vocabulary.md. - clean up how-to-run comments at the start of programs everywhere - rethink what to do with the html/ directory. Do we even want to keep supporting it? In spite of these shortcomings, all the scripts at the top-level, linux/ and linux/bootstrap are working. The names of the scripts also feel reasonable. This is a good milestone to take stock at.
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