chromatopelma, branch main Partial r7rs implementation with a focus on ease of implementation and a reusable library. Work in progress. https://code.roseh.moe/chromatopelma/atom/?h=main 2023-07-16T18:22:27Z Rewrite the macro expander to use set of scopes. 2023-07-16T18:22:27Z Rose Hogenson rosehogenson@posteo.net 2023-07-16T18:22:27Z urn:sha1:88ea4650ff1f1af0635d112e002e6e7847273156 I no longer have confidence that the timestamp approach will work for all of the different cases that aren't discussed in the original paper. The original paper was only about expanding a fixed set of syntax transformers, and didn't consider defining new transformers. Set of scopes is an extremely intuitive system, and hopefully that will mean it's easier to implement without bugs. I think I finally understand how it works after watching this video: https://youtu.be/Or_yKiI3Ha4 Fix an encoding issue for negative numbers. 2023-05-01T15:23:38Z Rose Hogenson rhogenson@posteo.net 2023-05-01T15:23:38Z urn:sha1:1c5678f77a61cf84f458376cccbd86a6d6942457 Rewrite most of the compiler. 2023-05-01T14:56:42Z Rose Hogenson rhogenson@posteo.net 2023-05-01T14:56:42Z urn:sha1:a89d6c82e981fec7d6e4c975e083d2b9e04467ad This represents a major step back in terms of functionality, and amount of code. The latter I think constitutes a major win. Next steps are to reimplement syntax-rules, call/cc, and call-with-values. Fix bugs with recursive macros and empty template. 2022-09-03T03:05:40Z Rose Hogenson rhogenson@posteo.net 2022-09-03T03:05:40Z urn:sha1:112ce5291da35e54c38c4ff1d7a2408a64a98e71 Undo the hacky list constant changes. 2022-09-03T00:07:29Z Rose Hogenson rhogenson@posteo.net 2022-09-03T00:07:29Z urn:sha1:19ff46c53e800132f8d800b909b10f28f53b13e9 We will eventually implement list constants using some kind of rodata. Fix some bugs in macros, and add list constants. 2022-09-01T21:45:28Z Rose Hogenson rhogenson@posteo.net 2022-09-01T21:45:28Z urn:sha1:49138077de7c97913c7bcb16099738f6183b39bd Use reg 255 for swapping. 2022-08-28T03:34:59Z Rose Hogenson rhogenson@posteo.net 2022-08-28T03:23:23Z urn:sha1:cb52f5dd0200f66ba6e6b4a3b1db0da6f60cdf9e I wanted to use the top reg, for some reason I thought at the time that 127 was the biggest 8-bit number. Obviously it's 255. Fix more bytes vs words bugs. 2022-08-28T03:22:21Z Rose Hogenson rhogenson@posteo.net 2022-08-28T03:22:21Z urn:sha1:e07c62f447e9f041901812a6e9cda05ae76d92df Enable nil constants. 2022-08-28T02:31:09Z Rose Hogenson rhogenson@posteo.net 2022-08-28T02:31:09Z urn:sha1:b9dec5a520f1b2f5d782993efe75b7227744631c Fix a bug in how offsets are calculated. 2022-08-28T02:30:38Z Rose Hogenson rhogenson@posteo.net 2022-08-28T02:30:38Z urn:sha1:289fc5ef52ade0f98cc6aa5e85d0edd9e64094de