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README.md
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README.md
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# ClassicOS
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This operating system uses standard operating system concepts used in the 32 bit environment. It will eventually be ported to 64 bit including IA64.
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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.
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[](https://github.com/gbowne1/ClassicOS/actions)
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[](LICENSE)
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[](https://en.wikipedia.org/wiki/IA-32)
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[](#)
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## Programming
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> **ClassicOS** is a 32-bit Intel x86 operating system built from scratch using C, NASM, and GCC.
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> Designed for 386, 486, and Pentium-class CPUs, it runs in protected mode, outputs to VGA text mode and serial ports, and supports floppy/HDD boot with basic FAT support.
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This project uses the C library and Assembly language.
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---
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## Toolchain
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## ✨ Features
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GNU Make 4.2.1
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CMake 3.13.4
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GNU 8.3.0
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gcc (Debian 8.3.0-6) 8.3.0
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nasm 2.14
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GNU ld (GNU Binutils for Debian) 2.31.1
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binutils
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- MBR bootloader at `0x7C00`
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- Switch to protected mode with GDT
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- A20 gate enabling
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- Simple FAT12/FAT16 disk loader stub
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- VGA text output (`0xB8000`)
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- Serial COM1 support (`0x3F8`)
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- Basic kernel (`kmain`) written in C
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- Makefile-based build system
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- Bootable floppy image for testing in QEMU
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For testing, QEMU i386 and TigerVNC/VNCViewer on ::1:5900
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---
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## Development (Team, etc)
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## ⚙️ Requirements
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This project will use MIT or the GPL license and will be fully open source.
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You’ll need the following tools installed:
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Ideal situations aside, My goal has always been:
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- `nasm`
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- `gcc` (targeting i386)
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- `ld`
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- `make`
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- `qemu-system-i386`
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1-2 person working on bootloader
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1-2 person working on kernel
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1-2 person working on drivers
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1-2 person working on issues/bugs
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1-2 people working on applications/user-space
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1-2 people working on Networking
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1-2 people working on memory issues, stack issues, etc.
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Optional:
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- `gdb`
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- `vncviewer` (TigerVNC or similar)
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at least one person doing hardware and software testing and writing tests in a test framework
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---
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At least one major bug fix a week
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At least one minor buf fix a week
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At least one new feature a month (or more)
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## 🛠️ Building ClassicOS
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## CPU Processor Support
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Clone and build:
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This project initially aims to support all 32 bit Intel and AMD processors Including;
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-- Intel --
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i386 SX and DX Processors
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i486 SX and DX Processors
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Pentium Processors (60 to 120MHz)
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Pentium Pro Processors
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Pentium II Processors
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Pentium II Xeon Processors
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Pentium III Processors
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Pentium III Xeon Processors
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early Pentium 4 Processors (Willamette, Prescott, Northwood)
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-- AMD --
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AMD k5
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AMD K6
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AMD am386
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AMD am486
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Athlon
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Duron
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Sempron
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## Device Support
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USB 1.0
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USB 1.1
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USB 2.0
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USB 2.1
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SATA 1
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UDMA
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UltraATA 66/100/133
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SCSI-1
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SCSI-2
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SCSI-3
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Ultra-2 SCSI
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Ultra-3 SCSI
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ESDI
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MFM/RLL
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## Booting
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BIOS from
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- primary hard disk partition
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- primary floppy
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- ISO 9660 CD-ROM, CD-R,CD-RW,
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- DVD
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- Removable media (Zip, Jaz, USB, Tape, Syquest, Bernoulli, CF, SmartMedia, SD etc)
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Might eventually support GRUB/GRUB2 and/or UEFI/EFI.
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Include support for AHCI and ACPI
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## Bus Support
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ISA
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EISA
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VESA/VESA Local Bus (VLB)
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PCI
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PCI-X
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PCIe 1.0, 1.1, 2.0
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AGP
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DIN 41416/NuBUS
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## Hardware support
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This OS aims to support major hardware existing from 1985 to early 2k's.
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## Memory Support
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up to 4GB
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## Features
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Has a GUI
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Has a IDE
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Has a text editor
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Has compilers for compiled lanugages (C, C++, C#, Go, Java, Fortran, Pascal, Objective C, Haskell, ADA, Scala, Rust, Zig, Ocaml, Julia, Dart, Erlang, Elixir)
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Has a Web Browser
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Has a shell, tty, console, terminal
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Has interpreters for interpreted languages like python 2 and python 3, JavaScript, BASIC, PHP, etc.
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Has a git client
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Has a video, audio editing and playing suite
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Has a file browser (in GUI)
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Has debuggers for languages/compilers, etc that output symbols, etc.
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## Video Support
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-- Modes --
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CGA
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EGA
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VGA
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SVGA
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MCGA
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XGA
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HGA / Hercules
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XGA-2
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SXGA
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UXGA
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WXGA
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8514/a
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VESA SVGA
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VESA/VLB
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AGP (1.0, 2.0, 3.0, 3.5, Pro) - 66MHz - aka AGP 1X, 2X, 4X, 8X
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PCI Graphics
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-- Resolutions --
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## Networking
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Novell NE1000
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Novell NE2000
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## Drivers
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-- Video card(s)
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3dFx Voodoo2, Voodoo3 cards
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NVIDIA NV1
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NVIDIA Riva 128
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ATI VGA Wonder
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NVIDIA GeForce 256
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NVIDIA GeForce 2 GTS
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NVIDIA GeForce 3 Ti500
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ATI Radeon DDR
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ATI Radeon 9700 Pro
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ATI Radeon 9800 Pro
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Matrox Millennium and MGA Millennium
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Matrox G400
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Matrox Mystique
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Matrox G200
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Matrox G400
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ATI Mach8
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ATI Mach32
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ATI Mach 64
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ATI 3D Rage
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ATI Rage Pro
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ATI Rage 128 Pro
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ATI Rage Wonder
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-- NIC's (3Com, Intel, etc.)
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Intel EtherExpress Pro/100
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3Com EtherLink I, II & III cards in the 3c5xx - 3c9xx series model range.
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Linksys LNE series cards
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Netgear FA3xx/FA4xx series and GA series cards
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-- Audio
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## Filesystems
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- FAT12
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- FAT16/FAT16B/FAT16X
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- FAT32/FAT32X
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- NTFS
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- HPFS
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- HFS / HFS+
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- ext / ext2 / ext3
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- exFAT
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- ZFS
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- JFS
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## Build
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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
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nasm -f elf32 boot.asm -o boot.o ; gcc -m32 -ffreestanding -nostdlib -fno-pic kernel.c boot.o -o kernel.bin -T linker.ld
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nasm -f elf32 boot.asm -o boot.o ; gcc -m32 -ffreestanding -nostdlib -fno-pie kernel.c boot.o -o kernel.bin -T linker.ld
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```bash
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git clone https://github.com/gbowne1/ClassicOS.git
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cd ClassicOS
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make
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```
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