https://gitlab.synchro.net/main/sbbs/-/commit/f1ecc065541d98d00490a8ce
Modified Files:
src/doors/termgfx/term.c term.h
Log Message:
termgfx: correct the DECSDM ?80 rationale in the comments

The term.h/term.c comments claimed mode 80 "defaults to SET" and that ?80l "pins the sixel to top-left" -- both wrong. SyncTERM/cterm reversed mode 80 in rev 1.328 (2026) to match real VT-340 hardware (it defaults to RESET), and the load-bearing effect of ?80l for us is POSITIONING, not scroll-prevention: under ?80l a non-SyncTERM sixel terminal draws the image at the text cursor (so the door centers it), while SyncTERM's cterm ignores the cursor and anchors top-left. Scroll-prevention is handled separately by keeping the image off the last text row (the bottom-cell reserve). Comments only; no code change.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

---
þ Synchronet þ Vertrauen þ Home of Synchronet þ [vert/cvs/bbs].synchro.net