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* start emitting indent tokensKartik K. Agaram2021-06-181-5/+13
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* shell: stop punning tokens as cellsKartik K. Agaram2021-06-181-2/+2
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* .Kartik K. Agaram2021-05-291-0/+2
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* bump up the token limit againKartik K. Agaram2021-04-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current state of code in the Mu computer: ( (globals . ( (hline1 . (fn () (screen y lo hi color) (if (>= lo hi) () ((fn () (pixel screen lo y color) (hline1 screen y (+ lo 1) hi color)))))) (vline1 . (fn () (screen x lo hi color) (if (>= lo hi) () ((fn () (pixel screen x lo color) (vline1 screen x (+ lo 1) hi color)))))) (hline . (fn () (screen y color) (hline1 screen y 0 (width screen) color))) (vline . (fn () (screen y color) (vline1 screen y 0 (height screen) color))) (andf . (fn () (a b) (if a (if b 1 ()) ()))) (brline . (fn () (screen x0 y0 x1 y1 color) ((fn (dx dy sx sy) ((fn (err) (brline1 screen x0 y0 x1 y1 dx dy sx sy err color)) (+ 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 color) (pixel screen x y color) (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))) color)) (* err 2))))) (read_line_2 . (fn () (keyboard stream) ((fn (c) (if (= c 10) stream (if (= c 0) stream (read_line_2 keyboard (write stream c))))) (key keyboard)))) (read_line . (fn () (keyboard) (read_line_2 keyboard (stream)))) (fill_rect . (fn () (screen x1 y1 x2 y2 fill_color) (if (>= y1 y2) () ((fn () (hline1 screen y1 x1 x2 fill_color) (fill_rect screen x1 (+ y1 1) x2 y2 fill_color)))))) (chessboard . (fn () (screen px) (chessboard1 screen px 0 15))) (chessboard1 . (fn () (screen px y color) (if (>= y (height screen)) () ((fn () (chessboard2 screen px y 0 color) (chessboard1 screen px (+ y px) (- 15 color))))))) (chessboard2 . (fn () (screen px y x color) (if (>= x (width screen)) () ((fn () (fill_rect screen x y (+ x px) (+ y px) color) (chessboard2 screen px y (+ x px) (- 15 color))))))) )) (sandbox . (chessboard screen 8)) )
* loosening a few more buffersKartik K. Agaram2021-04-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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)) )
* 7849 - shell: literal numbersKartik K. Agaram2021-03-041-1/+0
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* 7842 - new directory organizationKartik K. Agaram2021-03-031-0/+15
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.