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3 commits

Author SHA1 Message Date
f7352b51b0 rename: uncommonlisp -> lumbda throughout the repo
Historical internal name "uncommonlisp" retired in favor of the
public name "lumbda" ahead of lumbda.com going live. Scope of
this commit:

Source files renamed:
  uncommonlisp.py                     -> lumbda.py
  asm/uncommonlisp.s                  -> asm/lumbda.s
  c/uncommonlisp.h                    -> c/lumbda.h
  whitepaper/uncommonlisp-whitepaper  -> whitepaper/lumbda-whitepaper (.rst + .pdf)

Binaries renamed (tracked ones; c/ was always gitignored):
  asm/uncommonlisp, asm/uncommonlisp-gc, asm/uncommonlisp.o,
  asm/uncommonlisp-gc.o                -> asm/lumbda(-gc)(.o)
  c/.gitignore                          -> ignores lumbda

Internal string updates (sed pass ordered longest-first):
  asm/uncommonlisp -> asm/lumbda
  c/uncommonlisp   -> c/lumbda
  uncommonlisp.py  -> lumbda.py
  UNCOMMONLISP_BIN -> LUMBDA_BIN (asm/test.sh env var)
  "uncommonlisp> " -> "lumbda> " (asm REPL prompt baked into binary)
  UNCOMMONLISP     -> LUMBDA (macros, comments)
  uncommonlisp     -> lumbda (prose)

Binary portal magic updated:
  "ULPORTAL" -> "LUMBDAB1"   # "Lumbda Binary v1"
Old portal files are not backward-compatible — this is a deliberate
break since it's the rename moment. S-expression portals already
carry their own ";; lumbda-portal v1" header and remain cleanly
versioned.

WHITEPAPER.pdf / WHITEPAPER.rst symlinks repointed to the renamed
files. Makefile's whitepaper target targets lumbda-whitepaper.pdf.

Not changed (intentional, separate phases):
  - Filesystem directory /home/fox/git/uncommonlisp itself
    (fox renames locally and the gitlab repo URL in a follow-up)
  - tests.py hardcoded cwd=/home/fox/git/uncommonlisp
    (matches the current on-disk location; will flip when the
    directory rename ships)
  - Git history (immutable; old commits still say uncommonlisp,
    which is correct — that's what they were)

Verified:
  137 asm no-GC + 137 asm GC + 571 Python + 83 C + 189 shared
  functional tests all pass under the new names.
  bench-gc-http (2000 req): all 4 cells behave as expected
  (cells 1/2 flat, 3 leaks, 4 bounded at 1 chunk).
  Python REPL, C REPL, asm REPL all start cleanly.
2026-04-19 10:20:11 -04:00
d373f80aaf JIT: add named-let loops, let/let*, and/or, car/cdr/cons, 18 new tests
JIT now covers: if, cond, and, or, let, let*, named-let (native loops),
car, cdr, cons, null?, pair?, arithmetic, comparisons, recursion, TCO.
1309 lines of x86_64 codegen. 76 C tests + 114 functional tests pass.

Named-let loops compile to native jmp (zero call overhead):
  sum-to(50k): 0.33ms JIT vs 7.8ms CPython (24x faster than Python)
  ack(3,4):    0.20ms JIT vs 2.0ms CPython (10x faster)
  fib-rec(20): 0.42ms JIT vs 2.7ms CPython (6x faster)

EML benchmark added: integer-domain exp/ln composition under JIT.
2026-04-14 20:50:24 -04:00
c80eabac47 x86_64 JIT: 12-21x faster than CPython, 230x faster than interpreter
Real native machine code via mmap(PROT_EXEC). No exec(). No strings.
Raw x86_64 bytes: mov, add, sub, imul, cmp, je, jne, call, ret, jmp.

ack(3,4):    0.12ms JIT vs 1.5ms CPython vs 28ms interpreter
fib-rec(20): 0.16ms JIT vs 3.4ms CPython vs 40ms interpreter

Added cond support to JIT (cascaded comparisons → conditional jumps).
Fixed JIT cache: sentinel value prevents retry on unjittable functions.
System V AMD64 ABI: args in rdi/rsi/rdx, callee-saved r12-r15.
Tail calls use jmp (true TCO at machine code level).

691 lines of jit.c. 114 functional tests pass. All C tests pass.
2026-04-14 19:58:26 -04:00