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https://github.com/gbowne1/classicos

An x86 32 biit Operating System for 386, 486, Pentium class (P-60 to 233MHz, Pentium II, P3, P4, etc)
https://github.com/gbowne1/classicos

c hacktoberfest hacktoberfest- hacktoberfest2023 kernel kernels nasm nasm-assembly operating-system operating-systems os osdev x86 x86-32

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An x86 32 biit Operating System for 386, 486, Pentium class (P-60 to 233MHz, Pentium II, P3, P4, etc)

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README 

        
# ClassicOS



This operating system uses standard operating system concepts used in the 32 bit environment. It will eventually be ported to 64 bit including IA64.

This ClassicOS operating system, aims to support major hardware and software technology existing from when the first 32 bit systems appeared on the market through the early 2000's and most of those have been listed below.



## Programming



This project uses the C library and Assembly language.



## Toolchain



GNU Make 4.2.1

CMake 3.13.4

GNU 8.3.0

gcc (Debian 8.3.0-6) 8.3.0

nasm 2.14

GNU ld (GNU Binutils for Debian) 2.31.1

binutils



For testing, QEMU i386 and TigerVNC/VNCViewer on ::1:5900



## Development (Team, etc)



This project will use MIT or the GPL license and will be fully open source.



Ideal situations aside, My goal has always been:



1-2 person working on bootloader

1-2 person working on kernel

1-2 person working on drivers

1-2 person working on issues/bugs

1-2 people working on applications/user-space

1-2 people working on Networking

1-2 people working on memory issues, stack issues, etc.



at least one person doing hardware and software testing and writing tests in a test framework



At least one major bug fix a week

At least one minor buf fix a week

At least one new feature a month (or more)



## CPU Processor Support



This project initially aims to support all 32 bit Intel and AMD processors Including;



-- Intel --

i386 SX and DX Processors

i486 SX and DX Processors

Pentium Processors (60 to 120MHz)

Pentium Pro Processors

Pentium II Processors

Pentium II Xeon Processors

Pentium III Processors

Pentium III Xeon Processors

early Pentium 4 Processors (Willamette, Prescott, Northwood)



-- AMD --



AMD k5

AMD K6

AMD am386

AMD am486

Athlon

Duron

Sempron



## Device Support



USB 1.0

USB 1.1

USB 2.0

USB 2.1

SATA 1

UDMA

UltraATA 66/100/133

SCSI-1

SCSI-2

SCSI-3

Ultra-2 SCSI

Ultra-3 SCSI

ESDI

MFM/RLL



## Booting



BIOS from



- primary hard disk partition

- primary floppy

- ISO 9660 CD-ROM, CD-R,CD-RW,

- DVD

- Removable media (Zip, Jaz, USB, Tape, Syquest, Bernoulli, CF, SmartMedia, SD etc)



Might eventually support GRUB/GRUB2 and/or UEFI/EFI.



Include support for AHCI and ACPI



## Bus Support



ISA

EISA

VESA/VESA Local Bus (VLB)

PCI

PCI-X

PCIe 1.0, 1.1, 2.0

AGP

DIN 41416/NuBUS



## Hardware support



This OS aims to support major hardware existing from 1985 to early 2k's.



## Memory Support



up to 4GB



## Features



Has a GUI

Has a IDE

Has a text editor

Has compilers for compiled lanugages (C, C++, C#, Go, Java, Fortran, Pascal, Objective C, Haskell, ADA, Scala, Rust, Zig, Ocaml, Julia, Dart, Erlang, Elixir)

Has a Web Browser

Has a shell, tty, console, terminal

Has interpreters for interpreted languages like python 2 and python 3, JavaScript, BASIC, PHP, etc.

Has a git client

Has a video, audio editing and playing suite

Has a file browser (in GUI)

Has debuggers for languages/compilers, etc that output symbols, etc.



## Video Support



-- Modes --

CGA

EGA

VGA

SVGA

MCGA

XGA

HGA / Hercules

XGA-2

SXGA

UXGA

WXGA

8514/a

VESA SVGA

VESA/VLB

AGP (1.0, 2.0, 3.0, 3.5, Pro) - 66MHz - aka AGP 1X, 2X, 4X, 8X

PCI Graphics



-- Resolutions --



## Networking



Novell NE1000

Novell NE2000



## Drivers



-- Video card(s)



    3dFx Voodoo2, Voodoo3 cards

    NVIDIA NV1

    NVIDIA Riva 128

    ATI VGA Wonder

    NVIDIA GeForce 256

    NVIDIA GeForce 2 GTS

    NVIDIA GeForce 3 Ti500

    ATI Radeon DDR

    ATI Radeon 9700 Pro

    ATI Radeon 9800 Pro

    Matrox Millennium and MGA Millennium

    Matrox G400

    Matrox Mystique

    Matrox G200

    Matrox G400

    ATI Mach8

    ATI Mach32

    ATI Mach 64

    ATI 3D Rage

    ATI Rage Pro

    ATI Rage 128 Pro

    ATI Rage Wonder



-- NIC's (3Com, Intel, etc.)



    Intel EtherExpress Pro/100

    3Com EtherLink I, II & III cards in the 3c5xx - 3c9xx series model range.

    Linksys LNE series cards

    Netgear FA3xx/FA4xx series and GA series cards



-- Audio



## Filesystems



- FAT12

- FAT16/FAT16B/FAT16X

- FAT32/FAT32X

- NTFS

- HPFS

- HFS / HFS+

- ext / ext2 / ext3

- exFAT

- ZFS

- JFS



## Build



nasm -f elf32 boot.asm -o boot.o ; gcc -m32 -ffreestanding -nostdlib -fno-pic -fno-pie -std=c11 kernel.c boot.o -o kernel.bin -T linker.ld

nasm -f elf32 boot.asm -o boot.o ; gcc -m32 -ffreestanding -nostdlib -fno-pic kernel.c boot.o -o kernel.bin -T linker.ld

nasm -f elf32 boot.asm -o boot.o ; gcc -m32 -ffreestanding -nostdlib -fno-pie kernel.c boot.o -o kernel.bin -T linker.ld