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boot.sh: replace esp/ + DISK_IMG with single SYSTEM_IMG on ide.0
(hooks into mksystem.sh --force for auto-staging).
boot-image.sh: delegate to mksystem.sh --chain (build-image.sh deleted).
build-image-release.sh: delegate to mksystem.sh --chain --gpt.
qemu.sh: flexible launcher uses SYSTEM_IMG; --chain flag for
full-chain build.
test-disk.sh: drop ESP_DIR (mksystem.sh stages everything).
test-fault.sh: boot system.img on ide.0 + CRASHLOG stick on ide.1;
replace deleted mkdisk.sh with inline mkfs.fat.
test-gfx.sh: system.img on ide.0, stage via mksystem.sh.
test-mouse.sh: system.img on ide.0, stage via mksystem.sh.
test-msg.sh: system.img on ide.0, stage via mksystem.sh.
Makefile: remove stale build-image.sh/mkdisk.sh references from help;
image target delegates to mksystem.sh --chain.
All scripts syntax-checked (bash -n). build-image.sh and mkdisk.sh
no longer referenced anywhere.
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The first visible GUI surface: real rect primitives, a single
shadow→display push path, and an on-screen mouse cursor that can
never race the text surface.
gop:
- fill_rect + push_rect(x,y,w,h): every raster op rasterises into the
RAM shadow, then push_rect copies the rect to the display (write-only,
still never read) and composites the cursor on top. blit_glyph and
scroll shifts now route through it.
- cursor overlay: 12x16 pointer (const-fn built from column lists) drawn
white with a black offset outline; position in one AtomicU64 (x:high
32, y:low 32) — unpack masks the low word (a bare 'as usize' cast is
a no-op on 64-bit). The cursor never enters the shadow, so erasing is
just a shadow push of the old rect.
- cursor_redraw after scroll shifts and once at spawn (the vt diff never
re-blits idle cells).
cursor task (task 2, spawned at boot when a mouse is present):
- owns the PS/2 ring; polls every 10 ms, moves the cursor (clamped),
tracks buttons, and forwards every event to a task's queue when
'mouse <id>' armed it (the window-manager input path).
- /dev/mouse is now a position device (x/y/buttons snapshot); 'mouse'
watches the cursor live (prints on change); 'cursor' prints one-shot
state; 'gfx' draws a status-bar demo; 'gfx check' is an in-kernel
pixel self-test (shadow readback, display readback, cursor overlay
purity) — PASS/FAIL per stage.
Tests (headless QEMU + monitor injection):
- make test-gfx (new): all four compositor checks PASS.
- make test-mouse (rewritten): cursor tracks mouse_move deltas, buttons
ride along, /dev/mouse snapshot, live watch, real-event queue routing.
- make test-msg: task numbering shifted (cursor is task 2; msgrecv is
task 3) — updated, still PASS.
- make test-disk regression re-passes. 0 build warnings.
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Mouse (IRQ12, stream mode): ByteRing generalized for both PS/2 devices,
ISR routes data-port bytes by the controller's aux bit; mouse_init with
bounded-ACK handshake (boots without a mouse); packet decoder with
bit-3 resync, screen-relative deltas, buttons. Exposed as /dev/mouse,
the `mouse` stream command, and `make test-mouse`.
Message queues (ADR 0003's GUI-era primitive): every task gets a static
16-slot TaskMsg ring; send/recv/recv_blocking with direct wake + tick
scan safety net for the lost-wakeup race; `msgrecv`/`send` commands,
`mouse <id>` routes real IRQ12 events into a task's queue, jobs shows
q=. `make test-msg` + `make test-disk` regression pass.
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