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author | Alessandro Gatti <a.gatti@frob.it> | 2025-06-10 07:01:17 +0200 |
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committer | Damien George <damien@micropython.org> | 2025-07-01 15:34:29 +1000 |
commit | 703d5acbadd0234aa9c8cbb9aaba7a42aca99fc4 (patch) | |
tree | 19e43f9c3fd7b6307b7ec73b01922f1991cff37b /docs/esp8266/tutorial/filesystem.rst | |
parent | 1eb27e11f3bf8e5e0ee13191ef1e9c30b00f9ead (diff) | |
download | micropython-703d5acbadd0234aa9c8cbb9aaba7a42aca99fc4.tar.gz micropython-703d5acbadd0234aa9c8cbb9aaba7a42aca99fc4.zip |
py/misc: Introduce macros to check values' bits size.
This commit adds two macros that lets check whether a given value can
fit an arbitrary number of bits, either as a signed or as an unsigned
number.
The native emitter code backends perform a lot of bit size checks to see
if a particular code sequence can be emitted instead of a generic one,
and each platform backend has its own ad-hoc macros (usually one per bit
count and signedness).
With these macros there's a single way to perform those checks, plus
there's no more chance for off-by-one mask length errors when dealing
with signed numbers.
Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
Diffstat (limited to 'docs/esp8266/tutorial/filesystem.rst')
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