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Phase 7j: words buffers + w[i] word indexing (retire peek32/poke32)

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32-bit word access is indexing now, not peek32/poke32:

  peek32(ui_rx, i)       -> ui_rx[i]        (reads an int)
  poke32(rt_fb, i, c)    -> rt_fb[i] = c    (writes an int)

A buffer typed `words` (a pointer whose elements are i32) indexes with `w[i]`
as a full int; a plain `ptr`/`str` keeps byte indexing. emit_index_addr picks the
element type from the base's type — byte-identical IR to the old intrinsics, so
the migration reproduces the compiler and every golden render exactly.

The ~60 word buffers (rt_fb, tt_*/gc_* font tables, png_px/spr_px pixels, ui_*
layout arrays) were retyped from `ptr` to `words` scope-aware (per-function, so
the s/out/p byte-vs-word name collisions across functions stay correct), then the
254 peek32/poke32 sites migrated to indexing. A scope-analysis miss left 12
buffers (gc_*, sc_d, ui_rx/ui_ry) un-retyped — caught as a menu golden diff and
fixed. No true mixed byte+word access exists on any one variable, so a per-buffer
element type is sound.

Reseeded (22527 lines); C-free fixpoint holds; goldens byte-identical; 18/18;
vocab (byte/words types in, peek32/poke32 out) + doc-fences clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-08-28 02:20:50 +03:00
parent 454427bce8
commit ae0bae0457
17 changed files with 3032 additions and 3118 deletions
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4
tools/ludic-tools/ludic_syntax.h
View file

@ -71,7 +71,7 @@ static const char* LUDIC_KW_STMT[] = {
"and","or","not","break","continue","new", 0
};
static const char* LUDIC_TYPES[] = {
"int","fixed","bool","entity","str","ptr","void", 0
"int","fixed","bool","entity","str","ptr","byte","words","void", 0
};
static const char* LUDIC_PHASES[] = {
"Start","Input","FixedUpdate","Update","LateUpdate","Render", 0
@ -154,8 +154,6 @@ static const LBuiltin LUDIC_INTRINSICS[] = {
{"mem_free","mem_free(p: ptr)","Release an allocation."},
{"mem_copy","mem_copy(dst: ptr, src: ptr, n: int)","memcpy."},
{"mem_set","mem_set(p: ptr, byte: int, n: int)","memset."},
{"peek32","peek32(p: ptr, off: int) -> int","Read a 32-bit word."},
{"poke32","poke32(p: ptr, off: int, v: int)","Write a 32-bit word."},
{"peekp","peekp(p: ptr, off: int) -> ptr","Read a pointer-sized word."},
{"pokep","pokep(p: ptr, off: int, v: ptr)","Write a pointer-sized word."},
{"peekf","peekf(p: ptr, off: int) -> fixed","Read a fixed-point word."},