new changes

build/17_OSGroup/cmake_install.cmake

@@ -0,0 +1,54 @@
+# Install script for directory: /workspaces/2024-ikt218-osdev/src/17_OSGroup
+
+# Set the install prefix
+if(NOT DEFINED CMAKE_INSTALL_PREFIX)
+  set(CMAKE_INSTALL_PREFIX "/usr/local")
+endif()
+string(REGEX REPLACE "/$" "" CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}")
+
+# Set the install configuration name.
+if(NOT DEFINED CMAKE_INSTALL_CONFIG_NAME)
+  if(BUILD_TYPE)
+    string(REGEX REPLACE "^[^A-Za-z0-9_]+" ""
+           CMAKE_INSTALL_CONFIG_NAME "${BUILD_TYPE}")
+  else()
+    set(CMAKE_INSTALL_CONFIG_NAME "Debug")
+  endif()
+  message(STATUS "Install configuration: \"${CMAKE_INSTALL_CONFIG_NAME}\"")
+endif()
+
+# Set the component getting installed.
+if(NOT CMAKE_INSTALL_COMPONENT)
+  if(COMPONENT)
+    message(STATUS "Install component: \"${COMPONENT}\"")
+    set(CMAKE_INSTALL_COMPONENT "${COMPONENT}")
+  else()
+    set(CMAKE_INSTALL_COMPONENT)
+  endif()
+endif()
+
+# Install shared libraries without execute permission?
+if(NOT DEFINED CMAKE_INSTALL_SO_NO_EXE)
+  set(CMAKE_INSTALL_SO_NO_EXE "1")
+endif()
+
+# Is this installation the result of a crosscompile?
+if(NOT DEFINED CMAKE_CROSSCOMPILING)
+  set(CMAKE_CROSSCOMPILING "FALSE")
+endif()
+
+# Set default install directory permissions.
+if(NOT DEFINED CMAKE_OBJDUMP)
+  set(CMAKE_OBJDUMP "/usr/local/bin/i686-elf-objdump")
+endif()
+
+if(CMAKE_INSTALL_COMPONENT)
+  set(CMAKE_INSTALL_MANIFEST "install_manifest_${CMAKE_INSTALL_COMPONENT}.txt")
+else()
+  set(CMAKE_INSTALL_MANIFEST "install_manifest.txt")
+endif()
+
+string(REPLACE ";" "\n" CMAKE_INSTALL_MANIFEST_CONTENT
+       "${CMAKE_INSTALL_MANIFEST_FILES}")
+file(WRITE "/workspaces/2024-ikt218-osdev/build/17_OSGroup/${CMAKE_INSTALL_MANIFEST}"
+     "${CMAKE_INSTALL_MANIFEST_CONTENT}")

build/17_OSGroup/compile_commands.json

@@ -0,0 +1,107 @@
+[
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/libc/panic.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/libc/panic.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/libc/panic.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/libc/system.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/libc/system.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/libc/system.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/libc/string.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/libc/string.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/libc/string.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/libc/stdio.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/libc/stdio.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/libc/stdio.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/common.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/common.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/common.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/monitor.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/monitor.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/monitor.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/gdt.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/gdt.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/gdt.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/idt.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/idt.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/idt.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/irq.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/irq.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/irq.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/isr.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/isr.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/isr.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
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+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/isr_asm.asm"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/bin/nasm -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -f elf32 -o CMakeFiles/uiaos-kernel.dir/src/descriptor_table.asm.o /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/descriptor_table.asm",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/descriptor_table.asm"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/bin/nasm -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -f elf32 -o CMakeFiles/uiaos-kernel.dir/src/multiboot2.asm.o /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/multiboot2.asm",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/multiboot2.asm"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/kernel.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/kernel.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/kernel.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-g++ -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -g -Wno-unused-variable -Wno-unused-parameter -std=gnu++20 -o CMakeFiles/uiaos-kernel.dir/src/kernel.cpp.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/kernel.cpp",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/kernel.cpp"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/memory/malloc.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/memory/malloc.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/memory/malloc.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/memory/paging.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/memory/paging.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/memory/paging.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/memory/memutils.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/memory/memutils.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/memory/memutils.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/pit.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/pit.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/pit.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/input.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/input.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/input.c"
+},
+{
+  "directory": "/workspaces/2024-ikt218-osdev/build/17_OSGroup",
+  "command": "/usr/local/bin/i686-elf-gcc -I/workspaces/2024-ikt218-osdev/src/17_OSGroup/include -g -Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g -Wno-unused-variable -Wno-unused-parameter -std=gnu99 -o CMakeFiles/uiaos-kernel.dir/src/apps/song/song.c.o -c /workspaces/2024-ikt218-osdev/src/17_OSGroup/src/apps/song/song.c",
+  "file": "/workspaces/2024-ikt218-osdev/src/17_OSGroup/src/apps/song/song.c"
+}
+]

src/17_OSGroup/CMakeLists.txt

@@ -0,0 +1,155 @@
+########################################
+# The University of Agder Operating System: UiAOS
+# Languages: C, C++, and NASM Assembly
+# Tip: Use Ctrl+Shift+P in Visual Studio Code to get started with CMake.
+########################################
+
+# Skip compiler self-tests (saves time, avoids errors with some cross compilers)
+set(CMAKE_C_COMPILER_WORKS 1)
+set(CMAKE_CXX_COMPILER_WORKS 1)
+
+# Minimum required CMake version
+cmake_minimum_required(VERSION 3.22.1)
+
+# Project name and languages used
+project(UiAOS LANGUAGES C CXX ASM_NASM)
+
+# Create a lock file to prevent parallel runs of CMake
+file(LOCK ${CMAKE_SOURCE_DIR} DIRECTORY GUARD FILE)
+
+########################################
+# CMake: Import Plugins
+########################################
+include(FetchContent)
+
+########################################
+# UiAOS: Variables
+########################################
+set(OS_ARCH_TARGET "i386")  # x86_64 
+set(OS_NAME "UiA Operating System")
+set(OS_KERNEL_NAME "uiaos")
+set(OS_KERNEL_BINARY "kernel.bin")
+set(OS_KERNEL_IMAGE "kernel.iso")
+
+########################################
+# Compiler Configuration
+########################################
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_C_STANDARD 99)
+
+########################################
+# Assembly Configuration
+########################################
+set(CMAKE_ASM_NASM_SOURCE_FILE_EXTENSIONS "s;S;asm")
+if(OS_ARCH_TARGET STREQUAL "i386")
+	set(CMAKE_ASM_NASM_OBJECT_FORMAT "elf32")
+elseif(OS_ARCH_TARGET STREQUAL "x86_64")
+	set(CMAKE_ASM_NASM_OBJECT_FORMAT "elf64")
+endif()
+
+# Command to compile NASM files
+set(CMAKE_ASM_NASM_COMPILE_OBJECT 
+    "<CMAKE_ASM_NASM_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -f ${CMAKE_ASM_NASM_OBJECT_FORMAT} -o <OBJECT> <SOURCE>")
+
+########################################
+# OS Target
+########################################
+set(OS_KERNEL_LINKER "${CMAKE_CURRENT_SOURCE_DIR}/src/arch/${OS_ARCH_TARGET}/linker.ld")
+
+# Add executable target for the kernel
+add_executable(uiaos-kernel 
+
+	# Stdlib
+	src/libc/panic.c
+	src/libc/system.c
+	src/libc/string.c
+	src/libc/stdio.c
+
+	src/common.c
+	src/monitor.c
+	src/gdt.c
+	src/idt.c
+	src/irq.c
+	src/isr.c
+	src/isr_asm.asm
+	src/descriptor_table.asm
+
+	src/multiboot2.asm # TODO: Add multiboot2 support
+    src/kernel.c
+	src/kernel.cpp
+
+	# Memory 
+	src/memory/malloc.c
+	src/memory/paging.c
+	src/memory/memutils.c
+	src/pit.c
+
+	# Keyboard
+	src/input.c
+
+	# Apps
+	src/apps/song/song.c
+
+)
+
+# Include directories for the kernel target
+target_include_directories(uiaos-kernel PUBLIC include)
+
+# Specify compile options for C and C++
+target_compile_options(uiaos-kernel PRIVATE
+    $<$<COMPILE_LANGUAGE:C>:-Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -Wno-main -g>
+    $<$<COMPILE_LANGUAGE:CXX>:-Wall -Wextra -nostdinc -nostdlib -fno-builtin -fno-stack-protector -fno-stack-check -fno-lto -fPIE -m32 -march=i386 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone -g>
+    $<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-m32 -march=i386 -Wno-unused-variable -Wno-unused-parameter>
+)
+
+
+# Specify link options for C and C++
+target_link_options(uiaos-kernel PUBLIC
+    $<$<OR:$<COMPILE_LANGUAGE:C>,$<COMPILE_LANGUAGE:CXX>>:-ffreestanding -nostdlib -fno-builtin -static -pie -O0 -T${OS_KERNEL_LINKER} -g>
+)
+
+
+# Set properties for the kernel target
+set_target_properties(uiaos-kernel PROPERTIES
+    OUTPUT_NAME "${OS_KERNEL_BINARY}"
+)
+
+########################################
+# Create Empty Fat32 Disk Image
+########################################
+set(DISK_IMAGE "${CMAKE_CURRENT_BINARY_DIR}/disk.iso")
+
+# Custom target to create an empty FAT32 disk image of 32MB
+add_custom_target(
+    create-fat32-disk
+    COMMAND dd if=/dev/zero of=${DISK_IMAGE} bs=1M count=32
+    COMMAND mkfs.fat -F 32 ${DISK_IMAGE}
+    VERBATIM
+)
+
+########################################
+# OS-Image Target
+########################################
+set(ISO_DIR ${CMAKE_CURRENT_BINARY_DIR}/iso)
+set(LIMINE_CONFIG_DIR ${CMAKE_SOURCE_DIR})
+set(LIMINE_DIR /usr/local/limine)
+add_custom_target(
+	uiaos-create-image
+	COMMAND rm -rf ${ISO_DIR}
+	COMMAND mkdir -p ${ISO_DIR}
+	COMMAND cp -v $<TARGET_FILE:uiaos-kernel> 
+	 	${LIMINE_CONFIG_DIR}/limine.cfg ${LIMINE_DIR}/limine-bios.sys ${LIMINE_DIR}/limine-bios-cd.bin
+		${LIMINE_DIR}/limine-uefi-cd.bin ${ISO_DIR}/
+	COMMAND mkdir -p ${ISO_DIR}/EFI/BOOT
+	COMMAND cp -v ${LIMINE_DIR}/BOOTX64.EFI ${ISO_DIR}/EFI/BOOT/
+	COMMAND cp -v ${LIMINE_DIR}/BOOTIA32.EFI ${ISO_DIR}/EFI/BOOT/
+	COMMAND xorriso -as mkisofs -b limine-bios-cd.bin
+	 	-no-emul-boot -boot-load-size 4 -boot-info-table
+	 	--efi-boot limine-uefi-cd.bin
+	 	-efi-boot-part --efi-boot-image --protective-msdos-label
+	 	${ISO_DIR} -o ${CMAKE_CURRENT_BINARY_DIR}/kernel.iso
+	COMMAND ${LIMINE_DIR}/limine bios-install ${CMAKE_CURRENT_BINARY_DIR}/kernel.iso
+	#COMMAND sudo rm -rf ${ISO_DIR}
+	DEPENDS create-fat32-disk uiaos-kernel
+	VERBATIM
+)

src/17_OSGroup/include/common.h

@@ -0,0 +1,12 @@
+#ifndef COMMON_H
+#define COMMON_H
+
+#include "libc/stdint.h"
+
+// https://wiki.osdev.org/Serial_Ports
+void outb(uint16_t port, uint8_t value);
+uint8_t inb(uint16_t port);
+uint16_t inw(uint16_t port);
+
+#endif
+

src/17_OSGroup/include/descriptor_tables.h

@@ -0,0 +1,51 @@
+#ifndef DESCRIPTOR_TABLES_H
+#define DESCRIPTOR_TABLES_H
+#include "libc/system.h"
+#define GDT_ENTRIES 5
+#define IDT_ENTRIES 256
+// This defines the GDT entry
+struct gdt_entry_t {
+  uint16_t limit_low_part;
+  uint16_t base_low_part;
+  uint8_t base_middle_part;
+  uint8_t access_byte;
+  uint8_t granularity_byte;
+  uint8_t base_high_byte;
+} __attribute__((packed));
+
+// This defines the IDT entry
+struct idt_entry_t {
+  uint16_t base_low_part;
+  uint16_t selector_segment;
+  uint8_t reserved;
+  uint8_t flags_bits;
+  uint16_t base_high_part;
+} __attribute__((packed));
+
+// Definning both the GDT and IDT pointers
+struct gdt_ptr_t {
+  uint16_t limit;
+  uint32_t base;
+} __attribute__((packed));
+
+struct idt_ptr_t {
+  uint16_t limit;
+  uint32_t base;
+} __attribute__((packed));
+
+// Initialize the GDT and IDT
+void init_gdt();
+void init_idt();
+
+// Loading the GDT and IDT
+void gdt_load();
+void idt_load();
+
+void gdt_set_gate(int32_t num, uint32_t base, uint32_t limit, uint8_t access, uint8_t gran);
+
+static struct idt_entry_t idt[IDT_ENTRIES];
+static struct idt_ptr_t idt_ptr;
+static struct gdt_entry_t gdt[GDT_ENTRIES];
+static struct gdt_ptr_t gdt_ptr;
+
+#endif // DESCRIPTOR_TABLES_H

src/17_OSGroup/include/input.h

@@ -0,0 +1,3 @@
+#pragma once
+
+char scancode_to_ascii(unsigned char* scan_code);