#!/usr/bin/env python3 """RTX-DOS 7.0 installer — Modern DOS (Microsoft MS-DOS MIT lineage, no FreeDOS).""" from __future__ import annotations import hashlib import json import shutil import subprocess import sys from pathlib import Path ROOT = Path(__file__).resolve().parents[1] DOS_DIR = ROOT / "assets" / "dos" AMMO_DIR = DOS_DIR / "ammo" SCRIPTS = ROOT / "scripts" MSDOS_BASE = ROOT / "assets" / "dos" / "msdos-base" sys.path.insert(0, str(Path(__file__).resolve().parent)) from ammo_platform import ( # noqa: E402 FLOPPY_BYTES, GUEST_RAM_FAST_MB, HD_SIZE_GB, HD_SIZE_MB, MANIFEST_VERSION, PRODUCT_NAME, REPORTED_RAM_GB, ) from rtx_dos_brand import FLOPPY_IMAGE, HD_IMAGE, LINEAGE, TAGLINE # noqa: E402 HD_BYTES = HD_SIZE_MB * 1024 * 1024 MANIFEST = DOS_DIR / "install_manifest.json" FLOPPY = DOS_DIR / FLOPPY_IMAGE HD = DOS_DIR / HD_IMAGE COMMAND = DOS_DIR / "COMMAND.COM" STAMP = DOS_DIR / ".install_stamp" def sha256(path: Path) -> str: h = hashlib.sha256() with path.open("rb") as f: for chunk in iter(lambda: f.read(1 << 20), b""): h.update(chunk) return h.hexdigest() def run_py(script: str, *args: str) -> None: cmd = [sys.executable, str(SCRIPTS / script), *args] if script.startswith("rtx_dos/"): cmd = [sys.executable, str(ROOT / "scripts" / script), *args] print(f" run {' '.join(cmd)}") subprocess.run(cmd, check=True, cwd=ROOT) def ensure_msdos_base() -> None: if MSDOS_BASE.is_dir() and (MSDOS_BASE / "v4.0-ozzie").is_dir(): return MSDOS_BASE.parent.mkdir(parents=True, exist_ok=True) print(" clone Microsoft MS-DOS MIT source", flush=True) subprocess.run( ["git", "clone", "--depth", "1", "https://github.com/microsoft/MS-DOS.git", str(MSDOS_BASE)], check=True, cwd=ROOT, ) def manifest_ok() -> bool: if not MANIFEST.is_file(): return False try: data = json.loads(MANIFEST.read_text(encoding="utf-8")) except json.JSONDecodeError: return False return data.get("version") == MANIFEST_VERSION def installed_ok() -> bool: return ( manifest_ok() and FLOPPY.is_file() and HD.is_file() and COMMAND.is_file() and (AMMO_DIR / "IO.SYS").is_file() and (AMMO_DIR / "MSDOS.SYS").is_file() and (AMMO_DIR / "HIMEM.SYS").is_file() and (AMMO_DIR / "RTXKERNEL.SYS").is_file() and (AMMO_DIR / "RTXDRV.SYS").is_file() and (AMMO_DIR / "RTXHOST.SYS").is_file() and (AMMO_DIR / "RTXCD.SYS").is_file() and (AMMO_DIR / "AMMOFAT.SYS").is_file() and (AMMO_DIR / "FIELDLAY.TXT").is_file() and STAMP.is_file() and FLOPPY.stat().st_size == FLOPPY_BYTES and HD.stat().st_size == HD_BYTES ) def write_manifest() -> None: data = { "version": MANIFEST_VERSION, "guest_ram_gb": REPORTED_RAM_GB, "guest_ram_fast_mb": GUEST_RAM_FAST_MB, "hd_gb": HD_SIZE_GB, "hd_gpu_mirror_mb": 32, "os": PRODUCT_NAME, "tagline": TAGLINE, "lineage": LINEAGE, "boot": "Microsoft MS-DOS MIT IO.SYS/MSDOS.SYS (no FreeDOS)", "architecture": "GPU-primary Field Die; HD image backup on startup", "features": [ "4 GB BIOS RAM + 64 MB GPU Field Die fast path", "4 GB logical C: RTXDOS — RAID spill + HD persistence", "MS-DOS 3.x–6.x + DPMI/XMS/DOS4GW program compatible", "MEMORYUP + SCANDISK + HKRTX registry + EXTMAP (2026)", "Field Commander mouse + association launcher", "RTXKERNEL Supercore INT 2Fh field mux L0-L9", "Field drive rack A/C/D/E (RTXDRV RTXHOST AMMOFAT RTXCD)", "Vulkan compute x86 + VGA (Super DOSBox class)", "INT15 E820 + A20 + XMS", "CONFIG.SYS menu RTX-DOS / Win31 / Win95 / Win98", "Home key DOS panel fullscreen toggle", ], "files": { FLOPPY_IMAGE: {"bytes": FLOPPY.stat().st_size, "sha256": sha256(FLOPPY)}, HD_IMAGE: {"bytes": HD.stat().st_size, "sha256": sha256(HD)}, "ammo/IO.SYS": { "bytes": (AMMO_DIR / "IO.SYS").stat().st_size, "sha256": sha256(AMMO_DIR / "IO.SYS"), }, "ammo/MSDOS.SYS": { "bytes": (AMMO_DIR / "MSDOS.SYS").stat().st_size, "sha256": sha256(AMMO_DIR / "MSDOS.SYS"), }, "COMMAND.COM": {"bytes": COMMAND.stat().st_size, "sha256": sha256(COMMAND)}, }, } MANIFEST.write_text(json.dumps(data, indent=2) + "\n", encoding="utf-8") STAMP.write_text(data["files"][FLOPPY_IMAGE]["sha256"] + "\n", encoding="utf-8") def install(force: bool = False) -> int: if installed_ok() and not force: print(f"{PRODUCT_NAME} install up to date ({MANIFEST})") return 0 DOS_DIR.mkdir(parents=True, exist_ok=True) ensure_msdos_base() print(f" patch Microsoft MS-DOS 4.00 MIT → {PRODUCT_NAME}", flush=True) run_py("rtx_dos/patch_msdos63.py") run_py("mk_tools_com.py") run_py("mk_dos_utils_com.py") run_py("gen_extmap.py") run_py("gen_rtxreg.py") print(" build RTX-DOS boot floppy (IO.SYS + MSDOS.SYS + CONFIG.SYS)", flush=True) run_py("mk_ammo_floppy.py", str(FLOPPY)) print(f" build {HD_SIZE_GB} GiB RTX-DOS C: (RTXDOS)", flush=True) run_py("mk_ammo_hd.py", str(HD)) run_py("ammo_fdisk.py", str(HD)) run_py("ammo_format.py", str(HD)) shutil.copy2(AMMO_DIR / "COMMAND.COM", COMMAND) hd_dst = DOS_DIR / HD_IMAGE floppy_dst = DOS_DIR / FLOPPY_IMAGE if HD.resolve() != hd_dst.resolve(): shutil.copy2(HD, hd_dst) if FLOPPY.resolve() != floppy_dst.resolve(): shutil.copy2(FLOPPY, floppy_dst) run_py("install_rtx_windows.py") write_manifest() print() print(f"Installed {PRODUCT_NAME} ({TAGLINE}):") print(f" {FLOPPY} ({FLOPPY.stat().st_size} bytes)") print(f" {HD} ({HD.stat().st_size} bytes)") print(f" {AMMO_DIR}/IO.SYS") print(f" {AMMO_DIR}/MSDOS.SYS") print(f" {COMMAND} ({COMMAND.stat().st_size} bytes)") print(f" {MANIFEST}") return 0 def main() -> int: force = "--force" in sys.argv or "-f" in sys.argv return install(force=force) if __name__ == "__main__": raise SystemExit(main())