Not implementation -- documentation-only. M8 is tracked outside Stadium
(FABRIC.md §27.5), so this scoping lives in docs/lithosananke/ROADMAP.md
rather than as new FABRIC.md 4.3.x items.
Read the code before scoping, not assumed: the REPL already works
interactively over serial (sk_repl_run(), repl.c) with working
backspace/echo, and its on-screen text already renders via the existing
VT100 console (vt100_init()/font_8x16.c) independent of both the stroke
font and TrueType work -- neither was ever a REPL-strip prerequisite.
What's actually missing: sk_readline()'s console_getc() is
serial-UART-only, never touches KEY-EVENT (4.3.5f); KEY/?TERMINAL
(io_words.c) are dead stubs (KEY calls a getchar() hardcoded to EOF in
shim.c, ?TERMINAL always returns false).
Resolved design decisions: minimal US-QWERTY scancode->ASCII layout
with shift-state tracking (KEY-EVENT carries no modifier state today);
merge keyboard into console_getc()'s poll with serial staying a
co-equal source, not replaced (the entire acceptance/DoE harness
injects over the serial socket -- breaking that breaks make qemu,
DOE_INJECT, and every screendump technique used throughout 4.3.x); wire
KEY/?TERMINAL to the same merged source for FORTH-79 compliance;
CANVAS viewport sizing last, since it's presentation not input
plumbing. Extended scancodes, autorepeat-as-character-repeat, arrow-key
history explicitly out of scope for the "minimal" bar.
FABRIC.md's existing "not yet scoped" notes (4.3.5f's landing-point
note, 4.3.7f's closing note) updated to point here rather than
duplicating the design content.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
