zeptoforth

This patch-level release fixes introduced performance bugs in the stream and chan modules; as these bugs were only introduced in RP2040 releases they did not need fixing for other platforms.

The previous patch-level release did not actually contain a number of the fixes, such as that to the RP2040 division/modulus routine, that it was supposed to, due to making the changes to the wrong branch and then overwriting them. This now contains those fixes. Note that this release is RP2040-only.

This is a patch-level release that fixes a number of important issues with multitasking and, in particular, a critical issue with division and moduli on the RP2040. Due to the importance of this issue (which breaks many cases of division and moduli), this has been created as a special bug-fix release. A more complete release for all supported platforms will come in the near future.

This patch level release fixes an issue where transmission would sometimes halt with the USB CDC console (particularly when flushing the console), fixes pio::sm-addr! on the RP2040 (which previously did not actually work), and provides means to disable trapping of control-C and control-T on the U(S)ART and/or USB CDC consoles by setting uart-special-enabled and usb-special-enabled (which are set to true by default).

This patch-level release adds dumping inline strings to see and other disassembly words, adds some missing instructions to the disassembly words, and adds bl as a constant for space characters.

This is a bugfix to the new USB CDC console functionality for the RP2040 which fixes an issue where uploads with ACK or "ok" flow control would sometimes halt mid-upload.

Finally! Now that USB CDC console support for the RP2040 has been added to zeptoforth, and support for the RP2040 is reasonably complete, this is as good a time as ever to declare a release 1.0.0.

This release adds pending operations to the multitasker to enable the creation of things such as split interrupts and also includes a substantial optimization of the boot process on the RP2040 through keeping a copy of the dictionary index (aka "minidictionary") in flash.

This patch-level release adds jump tables, declared with begin-jumptable, end-jumptable, =>, and default=>, and fixes a bug that was leaving garbage on the stack and failing to properly initialize error-emit?-hook on boot.

This patch-level release adds goto, to enable branching to words without pushing a return address (e.g. to implement what is done with tail calls in functional languages), along with is, which is equivalent to defer! with a fixed execution token.