Commit Graph

11 Commits

Author SHA1 Message Date
Antonin ENFRUN
db19ee7e15 webassembly/library: Extract and send data to print as UInt8Array.
This allows utf-8 data to work.  It's the receiving layer's responsibility
to deal with decoding the data.
2022-12-13 17:16:37 +11:00
David Lechner
ea07ab04f8 webassembly/library: Make use of CustomEvent detail property.
This changes the CustomEvent for stdout to use the existing `detail`
property of CustomEvent instead of adding a `data` property.

Signed-off-by: David Lechner <david@pybricks.com>
2022-11-11 13:21:28 +11:00
Damien George
5987130afd webassembly/Makefile: Change compiler optimisation from O3 to Os.
Emscripten strongly advises the use of optimisation when compiling with
ASYNCIFY enabled.  Testing the difference betwen O3 and Os for various
configurations gives:

    flags                      firmware.wasm   micropython.js  perf
    -O3 -s ASYNCIFY            1342003          212845         0 (baseline)
    -O3 -s ASYNCIFY -s WASM=0        -         7064750         -30%
    -O3                         367131          196569         +140%
    -O3 -s WASM=0                    -         2818260         +30%
    -Os -s ASYNCIFY            1135450          213064         +40%
    -Os -s ASYNCIFY -s WASM=0        -         6239768         -30%
    -Os                         295028          196569         +180%
    -Os -s WASM=0                    -         2271358         +30%

The first row is prior to this commit.  The second and third columns show
firmware size (add them to get the total size).  The fourth column shows
the approximate change in performance compared to the baseline.  The
performance was measured using run-perfbench.py and the error was large, up
to 20%, although general trends in the change in performance could still be
seen.

In summary, using using Os instead of O3 makes it a little bit faster in
all cases, and smaller output (wasm/js) in all cases.

Signed-off-by: Damien George <damien@micropython.org>
2022-11-07 17:18:42 +11:00
Damien George
1ed740b152 webassembly/README: Update README to describe new stdout behaviour.
Signed-off-by: Damien George <damien@micropython.org>
2022-11-07 17:18:31 +11:00
Nicholas H.Tollervey
db978d7155 webassembly: Dispatch micropython-print via document not mp_js_stdout. 2022-11-07 15:09:56 +11:00
Damien George
2d406f2226 webassembly: Support piping in a program on stdin.
The performance benchmark suite can now be run on the webassembly port.

Signed-off-by: Damien George <damien@micropython.org>
2022-11-03 23:35:22 +11:00
Damien George
7a505d57dc webassembly: Change "stack" argument to "heapsize".
Because that's what mp_js_init() takes as its argument.

Signed-off-by: Damien George <damien@micropython.org>
2022-11-03 18:47:48 +11:00
Damien George
d65edaa232 webassembly: Use Date's now() instead of getTime().
Using now() is a bit faster because it doesn't need to create a new Date.

Signed-off-by: Damien George <damien@micropython.org>
2022-11-03 18:47:48 +11:00
Damien George
46bb52adf6 webassembly: Add support for VFS and enable VFS_POSIX.
This gets filesystem support working.

Signed-off-by: Damien George <damien@micropython.org>
2022-11-01 13:53:06 +11:00
Damien George
54478eb9e7 webassembly/mpconfigport: Use MICROPY_CONFIG_ROM_LEVEL_EXTRA_FEATURES.
This simplifies the config file.  This is not a no-op, it does enable a few
new features to bring the port in line with this config level.

Signed-off-by: Damien George <damien@micropython.org>
2022-11-01 13:10:45 +11:00
Nicholas H.Tollervey
af54d2ce9f
javascript: Rename this port to 'webassembly'. 2022-08-22 12:03:39 +01:00