Files
LithosAnanake/src
Robert Allan JamesandClaude Sonnet 5 095860251a ttf.c: rasterization -- Bezier flattening + even-odd scanline fill
Punch list §25 item 4.3.7c complete. ttf_rasterize_glyph() flattens
quadratic-Bezier contours (fixed 8-segment subdivision, matching
CIRCLE/ELLIPSE's fixed-segment precedent) and fills them into a
caller-supplied bitmap via even-odd scanline fill, no AA. A local
signed Q48.16 multiply (q48_smul) handles negative outline coordinates,
since the shared q48_mul/q48_div are unsigned-only.

Verified two ways: tools/ttftest.c's ASCII-art dump + structural checks
for 'A'/'.'/'a', all recognizable and passing; and a live amd64
screendump via a throwaway TTF-PROBE word (loaded the font capsule,
rasterized 'A', blit via fb_put_pixel), showing a clearly legible 'A'
on the CANVAS -- probe reverted immediately after capture, only the
permanent ttf.c/ttf.h rasterizer remains. Compile-checked clean on all
three architectures (hal/*.c wildcard); this item's own acceptance is
the amd64 screendump, not a three-arch boot (that's 4.3.7f).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-10 22:24:47 -04:00
..
2026-08-01 07:49:56 -04:00
2026-08-01 07:49:56 -04:00
2026-08-01 07:49:56 -04:00
2026-08-01 07:49:56 -04:00

src/

Hosted StarForth VM implementation (compiled by the root Makefile). Bare-metal kernel sources live in src/starkernel/; FORTH word implementations in src/word_source/; the test harness in src/test_runner/; platform shims in src/platform/.

Entry point / interpreter core

  • main.c — CLI entry point, VM init, DoE mode dispatch.
  • vm.c — interpreter loop, stacks, dictionary state (the central runtime file).
  • vm_api.c — external VM API implementation.
  • vm_bootstrap.c — VM bootstrap initialization.
  • vm_debug.c — debugging utilities.
  • vm_time.c — time-related VM operations.
  • vm_internal.h — internal-only declarations shared across the vm_*.c files, not part of the public include/vm_api.h surface.
  • repl.c — REPL read-eval-print loop.
  • cli.c — CLI argument parsing.
  • io.c — I/O operations.
  • log.c — logging infrastructure.

Memory / dictionary / blocks

  • memory_management.c — dictionary allocator.
  • dictionary_management.c — dictionary allocation and search.
  • dictionary_heat_optimization.c — Loop #1 execution-heat tracking.
  • word_registry.c — word registration system.
  • block_subsystem.c — logical→physical block mapper.
  • blkio_file.c, blkio_ram.c, blkio_factory.c — block I/O backends (file-backed, RAM-backed) and the factory that selects between them.
  • stack_management.c — stack operations.

Physics-driven adaptive runtime (7 feedback loops)

  • physics_runtime.c — main physics coordinator.
  • physics_hotwords_cache.c — Loop #1 hot-words caching.
  • physics_metadata.c — per-word metadata tracking.
  • physics_pipelining_metrics.c — Loop #4 word-transition prediction.
  • physics_execution_hooks.c — execution instrumentation.
  • rolling_window_of_truth.c — Loop #2 circular execution-history buffer.
  • inference_engine.c — Loops #5/#6, statistical inference (window-width, decay-slope).
  • ssm_jacquard.c — L8 Jacquard steady-state mode selector; consumes compudynamics.c for tuning-word/config lookups.
  • compudynamics.c — generic compudynamics module (cd_tuning_word(), cd_tuning_vm()); the score/UCB/reward/weight constants for the L8 adaptive table live here, not in ssm_jacquard.c.
  • heartbeat_export.c — heartbeat metrics export (CSV export function itself not yet implemented — see docs/working/architecture/heartbeat_csv_export.md).

Math / measurement

  • math_portable.c — portable math functions.
  • profiler.c — performance profiling.
  • doe_metrics.c — Design of Experiments metrics (2^7 factorial).

Any .bak file alongside a .c file here (doe_metrics.c.bak, inference_engine.c.bak, vm.c.bak) is a pre-edit backup left by a past maintenance script (see scripts/remove_loop_conditionals.sh), not a build input.