rs-dos/rsdosedit/src, branch qemu

Bump workspace to edition 2024

2026-08-01T01:47:51Z

- edition = "2024" in the workspace manifest and rsdosedit - extern blocks must be unsafe: interrupts.rs ISR stubs -> unsafe extern "C" - #[no_mangle] -> #[unsafe(no_mangle)] (efi_main, isr_dispatch) - One missed static-mut read in free_list_insert wrapped in an explicit unsafe block (edition 2024 removed the implicit unsafe context inside unsafe fns) - rustfmt reflows for 2024: nested if-lets become let-chains, imports re-sorted, rsdosedit help-screen box rows wrapped No codegen-affecting changes. Validated: cargo check/clippy/fmt clean (host + uefi target), make test-disk PASS, editor round-trip PASS.

Clean up warnings, fix FAT32 multi-cluster dirs, prep for edition 2024

2026-08-01T01:44:57Z

Warning cleanup (cargo check + clippy now 0 across the workspace): - Migrate all 21 static_mut_refs sites to &raw mut accessors (fat, gop, ps2, vt, ahci, interrupts, memory) so edition 2024 won't deny them - panic = "abort" profiles: bare cargo check/build now works without nightly/-Zbuild-std - Wire TICKS in the timer ISR (it was never incremented, so the vt scroll batching trigger was dead code) - Clippy: efi_main becomes unsafe extern "efiapi" with a # Safety doc, KeyBuf::new uses inline-const array repeat (no interior-mutable const), editor main loop is a while-let, PIT control byte regrouped - [workspace.lints.clippy] allows result_unit_err + needless_range_loop (deliberate kernel style); large_enum_variant allowed on LineInput - Drop now-stale static_mut_refs allow from the rsdos bin FAT32 correctness fixes (both pre-existing, exposed by the SFN fix): - Unique 8.3 short names: to_8_3() never disambiguated collisions, so files sharing a long-name prefix got identical SFNs and fsck reported duplicate directory entries. Add dir_short_names() + unique_short_name() (~N tails, Windows-style) and force LFN when the SFN changes. - Multi-cluster directories: scan_dir/dir_short_names stopped at the first 0x00 slot, hiding every entry written into a chained cluster (writes failed with 'cannot write', duplicate SFNs accumulated); add_dir_entry now packs the cluster (0xE5 deleted-markers) before extending so other FAT readers (mtools, Windows) see the continuation too. Other: delete dead fields (Disk.fis, Volume.fat_count), drop timer_irq/ keyboard_irq/rendered, refresh_and_exit is a documented unsafe fn, CONTEXT .md corrected (stable toolchain, IRQ input, 4-crate layout), .gitignore excludes .pi-subagents artifacts. Validated: cargo check/clippy/fmt clean, make test-disk PASS on fresh and reused images (incl. two directory-chain extensions and ~10 SFN tails), editor round-trip smoke test PASS.

tty + vt terminal split, rsdosedit editor (1:1 UNIX console)

2026-07-31T15:19:09Z

Kernel now has the classic UNIX console split, so full-screen ANSI apps can run in ring 0: - vt.rs: terminal emulator owning the text screen — cell grid (char + fg/bg), logical cursor (inverse-video), scrolling, and a small ANSI CSI parser (cursor position H/f, erase J/K, moves A-D, SGR 16-colour with correct ANSI→VGA mapping, cursor show/hide ?25). Blits only changed cells; scroll shifts cell grids + pixels and re-rasterises only the exposed bottom row. gop_println!/clear_screen now render through the vt; gop.rs is the raw rasteriser (colored glyph blits, pixel shift). - tty.rs: line discipline — canonical read_line (echo, line buffer, ^C cancel, ^D EOF) moved out of the shell, and raw read_byte that translates KeyEvents to the terminal byte protocol (arrows → ESC[A-D, Backspace → 0x7f, ^X → 0x18, Ctrl+arrows → ESC[1;5A-D, Home/End/PgUp/ PgDn/Delete). interrupt_pressed() stays for streaming commands. - ps2: generic Ctrl(char) + CtrlArrow events (was: only CtrlC/CtrlD). - rsdosedit: no_std port of the RNG rsedit editor as the first real app — undo, syntax highlighting (verified green/gray/yellow on the framebuffer), search, word nav, smart indent, ^S save / ^X exit / ^X again to discard. termios → tty raw, stdout → vt, std::fs → VFS (ramfs), SIGWINCH → fixed geometry, force-exit window → key counter. - shell: 'edit ' command; read_line/strbuf moved to rsnix. - CONTEXT.md: layout + milestones + known-issue perf notes. Verified in QEMU: full edit → type → arrow-move → insert → save → exit round trip with byte-exact file content; ANSI colors via screendump.