diff options
Diffstat (limited to 'docs/history/07-zygote/notes.md')
| -rw-r--r-- | docs/history/07-zygote/notes.md | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/docs/history/07-zygote/notes.md b/docs/history/07-zygote/notes.md deleted file mode 100644 index a4f1089..0000000 --- a/docs/history/07-zygote/notes.md +++ /dev/null @@ -1,10 +0,0 @@ -# the zygote - -the code/ folder next to this file is the zygote exactly as it was packed in stage 8 and 9: the asm genome (gen.s, aslib.s), the arm64-only core, the repl and the .s examples. these are the notes as they were written in the transcript. - -## message 7 - -> can you make it a zygote approach? -> a minimal core loads first, reads and compiles the program (either wholly or partially, for speed) and replaces it with itself. so it's like a jvm but self-contained and on the same level as itself, where the assembler can itself be modified in-memory to assemble different code. for this we need to ditch llvm - -**summary:** the current design, described above. the native core only does jit and glue. it loads the genome (boot loader + assembler, both vm code) at 48000. the boot loader reads source until eof or a backtick, assembles it at 0 and jumps there. compilation is lazy per block, straight from live memory, with superblocks through `z`, fused constant targets, and dispatch chained through a table. invalidation uses the coverage byte map plus a store hook, so self-modified code gets retranslated instead of interpreted. the resident assembler sits at fixed addresses, and `repl.s` rewrites its mnemonic table so `p` means out, then assembles and runs input chunks in a loop, overwriting the same address each time. verified under qemu on linux arm64, including the self-hosted assembler running on the zygote. about 4x faster than the golfed interpreter. |
