87 lines
3 KiB
Text
87 lines
3 KiB
Text
# RETRO 2020.01
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- rename package/list to package/list.forth
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- include signing keys for this and the next release
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- fix n:MIN and n:MAX queries on some of the interfaces
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- reduce default image size; max number of open files
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- updated html export for retro sources: averages 7.4% faster conversion, 26% smaller output across my test set
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- use a trick from https://getkiss.org/blog/20191004a to disable requests for a favicon in Atua-WWW
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- fix a bug in s:WHITESPACE and use it in c:whitespace?
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- reorganize source tree
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- add s:get-word
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- moved the assembler into rx.muri
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- add prefix:\
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- add prefix:^
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- deprecate as{
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- deprecate }as
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Security.
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Starting with 2020.1, each release will include a signing key to
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allow verification of the release. Additionally, each release will
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include the signing key to be used for the following release so
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that there is both reliable key rotation and a verifiable chain
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of trust across releases.
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Tooling updates.
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The HTML export for the examples has been updated. It now averages
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a 7.4% decrease in conversion and a 26% decrease in exported file
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size.
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Assembler.
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The assembler is now provided by Rx. This was a technical challenge,
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but well worth the effort. By making it part of the kernel it has
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become possible to use assembly, rather than raw bytecode, in all
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parts of retro.forth. This is allowing for a significant amount of
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hand tuning to the standard library, reducing the memory footprint
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and improving performance overall.
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Some highlights of this:
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- Reduced the assembler size from 661 cells to 109 cells
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- No increase to the size of the reserved space for Rx
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- Renamed the `en`d instruction to `ha`lt
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- Added new prefixes for working with the assembler instead of
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requiring use `as{` and `}as`.
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- Deprecated `as{` and `}as` (these will be removed in the
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2020.04 release)
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Example of the changes:
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(old)
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as{ 'liliad.. i #2 d #3 d 'lica.... i 'n:put r }as
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(new)
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\liliad.. `2 `3 \lica.... ^n:put
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Standard Library.
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I fixed bugs in a few places, including the `c:whitespace?` word.
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The assembler was moved into the kernel; this has allowed me to
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remove all uses of raw bytecode from the main sources which aids
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in readability. I also used the assembler to hand tune a number
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of words to reduce the image size and improve performance.
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Nga.
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Reorganized the source tree. This separates the implementations
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by language and tries to keep things better structured. The Forth
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code for the I/O devices is now in a separate directory, allowing
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it to be more easily shared across implementations. Bugs related
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to the numeric range queries were fixed.
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The JavaScript implementation has seen a number of changes. Dead
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code was removed, the formatting was redone to ensure consistency,
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a framebuffer device was added, and performance was improved. The
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code now consists of multiple files, making editing easier, and
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the interface layout has been updated.
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Retro on Unix.
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I added an `s:get-word`, removed some deprecated words, and updated
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the memory limits to reduce overall memory usage under the default
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configuration.
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