BTRON Guest Environment
The BTRON System Plane provides a cleanroom implementation of the Japanese Business TRON (BTRON3) specification for OS.1 instances requiring real-time μITRON task execution, authentic Sakamura windowing, multilingual TRON Code, and the Real Body / Virtual Body hyper-data engine. Designed using standard C99, rendering through VirtIO / SDL2 graphics primitives.
μITRON KERNEL & ITRON.H
Real-time microkernel primitives powering task scheduling, semaphores, event flags, and inter-process communication.
/* μITRON Real-Time Task Creation */ ID tskid = cre_tsk(&ctsk); sta_tsk(tskid, stacd); wai_sem(semid);
DISPLAY PRIMITIVES & DP.H
Sakamura graphics engine supporting 2D vector/raster rendering, pattern fills (PAT), clipping regions (RGN), and VirtIO framebuffers.
/* BTRON Display Primitives */
PAT pat = { .fill = PAT_SOLID, .color = COLOR_TEAL };
gd_rect(&rect, &pat);
gd_draw_text(pnt, "BTRON3", &pat);
WINDOW MANAGER & WND.H
Authentic Sakamura Cho-Kanji retro desktop layout, teal workspace, top status panel, z-order window manager, and cabinet launcher.
/* Sakamura Window Creation */ WND wnd; wnd_create(&wnd, "T-Editor", 100, 100, 640, 480); wnd_show(&wnd);
REAL / Virtual Body ENGINE
Sakamura hyper-data object model: documents contain live embedded pointers (Virtual Bodys) linked to Real Bodys stored in disk cabinets.
/* Real Body / Virtual Body Link */ VOBJ link; vobj_read_link(&link, obj_id); vobj_open_cabinet(link.real_obj_id);
TRON Multilingual & Fonts
- TRON Code — Multilingual character system & plane switching
- TAD Specification — TRON Application Document format & 2D segments
- Pixel Fonts — High-legibility Japanese & Latin bitmap renderer
- T-Editor — TRON Text Editor with Virtual Body embedding
Applications & Tooling
- gterm — BTRON Terminal Console window
- vobj_manager — Real Body Cabinet & Link Explorer
- BTRON FS — Diskette & Real-Object file system format
- BSD Makefile — Standalone build system in C99
Specification & Architecture
The complete Sakamura BTRON3 specification is documented within the workspace, organized into Part 1: Shared Data Specifications and Part 2: OS Specification across 8 core chapters, complying with NASA Safety-Critical C Rules, TRON Code Policy, and Static Analysis & Bounded Heap Scope:
T-Kernel 2.0 SPEC
Standardized real-time operating system kernel specification, deterministic task scheduling, and QEMU deployment guides.
Повна технічна документація та стандарти людино-машинного інтерфейсу BTRON:
TRON HMI
Стандартний довідник людино-машинного інтерфейсу TRON (PMC / Ken Sakamura): ергономіка SUI/GUI, правила безпеки та повний каталог компонентів.
B-Free OS (GPL)
Опис та архітектурний аналіз історичної вільної реалізації BTRON3 поверх мікроядра µITRON 3.0 та сумісності з POSIX.
Cleanroom engineering & modern book chapters across Part 1: Shared Data Specifications and Part 2: OS Specification (8 core chapters), adhering to NASA Safety-Critical C Rules, TRON Code Policy, and Static Analysis & Bounded Heap Scope:
B-System (ISC/BSD/MIT)
Сучасна віртуалізована та векторна специфікація B-System (RISC-V 64 / ARM64 / x86_64, VirtIO 1.4, seL4/Synrc VE OS.1, DSP/SDR та SDL2):
- Розділ 1: Вступ та архітектура B-System
- Розділ 2: Ядро µITRON (DSP / Real-time)
- Розділ 3: Менеджер системного ядра BTRON
- Розділ 4: DP & Wireframe Engine (NetWars)
- Розділ 5: Window Manager & Графічна оболонка
- Розділ 6: Реальні та Віртуальні об'єкти (VOBJ)
- Розділ 7: Документи TRON TAD • Розділ 8: FS
- Розділ 9: VirtIO & Synrc VE (9.1–9.10)
- Ліцензійна модель (MIT / BSD / ISC) • Зміст (TOC)
NASA / TRON Code Policy
Aerospace determinism & static verification across Part 1: Shared Data and Part 2: OS Spec (8 chapters):
- NASA Safety-Critical C Rules: Zero post-boot heap allocation (
JPL Rule 3), volatile barriers (_W,_UW), fixed types (B,H,W,UB,UH,UW). - TRON Code Policy: Deterministic 16-bit plane switching, multilingual script isolation, zero runtime transcoding faults.
- TAD Segments & BTRON FS: Bounded TAD parsers and static FS block tables.
- μITRON Determinism: Strict priority preemption, bounded IPC queue depth, predictable WCET without jitter.
- DP Primitives & Shell: Fixed-point transforms and bounded control panels (
MAX=32). - Static Analysis & Bounded Heap Scope: MISRA-C:2012 / JPL compliance and 100% verified test pass rate.
Authentic multi-window desktop screenshots of the cleanroom B-System environment: Sakamura Cho-Kanji windowing, TAD document browser, Real Body cabinet explorer, Mozc Kana-Kanji conversion, and CUA text editor.
When running as a System Plane image in Synrc VE OS.1, BTRON boots via seL4 Microkit Loader, Coreboot, or direct seL4 Protection Domain (PD) entry. Display output routes directly through VirtIO-GPU or SDL2 surface, providing low-latency real-time rendering inside isolated capability-managed sandboxes.