pmi - Protected Mode Interface for FN-DOS.

This repository has the source code for:

• Gramado boot loader
• Gramado kernel
• Gramado Window Server
• Applications
• Commands

pmi is based on Gramado 32bit.

Gramado 32bit

  This is the last 32bit version of Gramado OS.
  Codename = (V 1.1 241)
  Date = June 6, 2021.

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Goal:

  This is gonna be a 32bit interface for the FN-DOS (16bit OS) project.
  A kind of 32bit DMPI for the 16bit FN-DOS.

What is Gramado?

Gramado (c) is a 32 bit multithreaded operating system.

Kernel features.

• Paging.
• Threads.
• FAT16 file system.
• ps/2 keyboard.
• ps/2 mouse works fine only on qemu.
• serial port.
• IDE PATA.
• e1000 NIC.

Userland features.

• Working on a Window Server. (gws)
• Working on a virtual terminal.
• unix-like commands running in the virtual console.

Libraries.

• unix-like library. (rtl)
• API for setup environment. (libcore)
• Lib for the window server's clients. (libgws)

Fred's compilation on Linux.

    Linux 5.4.0-42-generic x86_64
    gcc (Ubuntu) 7.5.0
    GNU ld (GNU Binutils for Ubuntu) 2.30
    NASM version 2.13.02

How to Build?

See the Gramado OS build instructions

Testing

	$ ./run
	$ make qemu-test

You can run the VHD on Oracle Virtual Box and qemu. Please, give us some feedback.

Documentation

See the docs. See the DOCS.

More information

Gramado is a Free and Open Source operating system. The source code uses the BSD license.

Quotes:

Oh boy, there is no spoon!