Adrien Bourmault
GitHub
parent
7be54a602c
commit
bbb4931238
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@ -12,6 +12,7 @@ qemu.log
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*.obj
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*.obj
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*.elf
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*.elf
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*.S
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*.S
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build/obj/*/*/*/[^.]*
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# CNAME STUFF
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# CNAME STUFF
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*.yml
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*.yml
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@ -54,6 +55,7 @@ build/bin/s**
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*.hex
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*.hex
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*.bin
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*.bin
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*.img
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*.img
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build/bin/[^.]*
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# Debug files
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# Debug files
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*.dSYM/
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*.dSYM/
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38
Makefile
38
Makefile
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@ -42,8 +42,9 @@ tests:
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#Programs
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#Programs
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ASM=nasm
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ASM=nasm
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ASMFLAGS=
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LD=ld
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BOOTFLAGS=-f bin
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ASMFLAGS=-f elf64
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LDFLAGS= -melf_x86_64
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#Folders
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#Folders
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MBRDIR=boot/grub
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MBRDIR=boot/grub
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@ -51,6 +52,8 @@ LOADERDIR=boot/loader
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OBJDIR=build/obj
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OBJDIR=build/obj
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BINDIR=build/bin
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BINDIR=build/bin
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l_objects=./build/obj/kaleid/crtlib/memory.o ./build/obj/kaleid/crtlib/rand.o ./build/obj/kaleid/crtlib/string.o ./build/obj/kaleid/crtlib/ultoa.o ./build/obj/kaleid/crtlib/strtol.o ./build/obj/kaleid/crtlib/utoa.o ./build/obj/kaleid/crtlib/status.o ./build/obj/kaleid/crtlib/atoul.o ./build/obj/kaleid/crtlib/atol.o ./build/obj/kaleid/crtlib/itoa.o ./build/obj/kaleid/crtlib/ltoa.o ./build/obj/kaleid/crtlib/atou.o ./build/obj/kaleid/crtlib/arith.o ./build/obj/kaleid/crtlib/atoi.o ./build/obj/kaleid/extras/prog.o ./build/obj/kaleid/extras/argv.o ./build/obj/kaleid/kernel/init/table.o ./build/obj/kaleid/kernel/init/init.o ./build/obj/kaleid/kernel/io/vga.o ./build/obj/kaleid/kernel/io/cursor.o ./build/obj/kaleid/kernel/io/term.o ./build/obj/kaleid/kernel/ke/panic.o ./build/obj/boot/loader.o
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#Color codes
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#Color codes
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CL='\033[0;32m'
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CL='\033[0;32m'
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CL2='\033[1;31m'
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CL2='\033[1;31m'
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@ -65,17 +68,19 @@ boot.mbr: $(BINDIR)/disk.img $(MBRDIR)/grub.cfg
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@rmdir $(BINDIR)/disk
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@rmdir $(BINDIR)/disk
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boot.loader.asm: $(LOADERDIR)/loader.asm
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boot.loader.asm: $(LOADERDIR)/loader.asm
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@echo ${CL2}[boot.loader.asm]${NC} Making loader.bin...${CL3}
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@echo ${CL2}[boot.loader.asm]${NC} Making loader...${CL3}
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@$(ASM) $(BOOTFLAGS) $(LOADERDIR)/loader.asm -o $(OBJDIR)/boot/loader.bin > /dev/null
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@$(ASM) $(ASMFLAGS) $(LOADERDIR)/loader.asm -o $(OBJDIR)/boot/loader.o > /dev/null
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@echo ${CL2}[boot.loader.asm]${CL} OK${CL3}
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@echo ${CL2}[boot.loader.asm]${CL} OK${CL3}
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loader: boot.loader.asm
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loader: boot.loader.asm link copykernel
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copykernel:
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@mkdir -p $(BINDIR)/disk
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@mkdir -p $(BINDIR)/disk
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@echo ${CL2}[loader]${NC} Constructing kernel loader...${CL3}
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@echo ${CL2}[disk]${NC} Integrating kernel...${CL3}
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@$(MBRDIR)/mount.sh $(BINDIR)/disk.img $(BINDIR)/disk
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@$(MBRDIR)/mount.sh $(BINDIR)/disk.img $(BINDIR)/disk
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@cp $(OBJDIR)/boot/loader.bin $(BINDIR)/disk/boot/loader.bin
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@cp $(BINDIR)/kaleid $(BINDIR)/disk/boot/kaleid
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@$(MBRDIR)/umount.sh $(BINDIR)/disk
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@$(MBRDIR)/umount.sh $(BINDIR)/disk
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@echo ${CL2}[loader]${CL} OK${CL3}
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@echo ${CL2}[disk]${CL} OK${CL3}
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@rmdir $(BINDIR)/disk
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@rmdir $(BINDIR)/disk
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make_disk:
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make_disk:
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@ -85,20 +90,27 @@ make_disk:
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testloader: loader
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testloader: loader
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@qemu-system-x86_64 -hda build/bin/disk.img -d cpu_reset,guest_errors,pcall,int -enable-kvm 2> qemu.log &
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@qemu-system-x86_64 -hda build/bin/disk.img -d cpu_reset,guest_errors,pcall,int -enable-kvm 2> qemu.log &
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@ndisasm $(OBJDIR)/boot/loader.bin -b 32 > loader_dism.asm
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@ndisasm $(OBJDIR)/boot/loader -b 32 > loader_dism.asm
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testloader32: loader
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testloader32: loader
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@qemu-system-i386 -hda build/bin/disk.img -d cpu_reset,guest_errors,pcall,int -enable-kvm 2> qemu.log &
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@qemu-system-i386 -hda build/bin/disk.img -d cpu_reset,guest_errors,pcall,int -enable-kvm 2> qemu.log &
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@ndisasm $(OBJDIR)/boot/loader.bin -b 32 > loader_dism.asm
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@ndisasm $(OBJDIR)/boot/loader -b 32 > loader_dism.asm
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debugloader: loader
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debugloader: loader
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@qemu-system-x86_64 -hda build/bin/disk.img -d cpu_reset,guest_errors,pcall,int -s -S -enable-kvm 2> qemu.log &
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@qemu-system-x86_64 -hda build/bin/disk.img -d cpu_reset,guest_errors,pcall,int -s -S -enable-kvm 2> qemu.log &
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@ndisasm $(OBJDIR)/boot/loader.bin -b 32 > loader_dism.asm
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@ndisasm $(OBJDIR)/boot/loader -b 32 > loader_dism.asm
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boot: make_disk boot.mbr loader
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boot: make_disk boot.mbr loader
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@echo ${CL2}[[boot]]${CL} Terminated without error.${CL3}
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@echo ${CL2}[[boot]]${CL} Terminated without error.${CL3}
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all: boot kernel
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all: kernel boot
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@echo ${CL2}[[all]]${CL} Terminated without error.${CL3}
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@echo ${CL2}[[all]]${CL} Terminated without error.${CL3}
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link:
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@$(LD) $(LDFLAGS) -T build/kernel.ld $(l_objects) -o $(OBJDIR)/boot/kaleid.x86_64
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@x86_64-elf-objcopy -I elf64-x86-64 -O elf32-i386 $(OBJDIR)/boot/kaleid.x86_64 $(BINDIR)/kaleid
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clean:
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rm -Rf $(BINDIR)/*
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rm -Rf $(OBJDIR)/*/*/*/*.o
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@ -106,7 +106,7 @@ kernel: common
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COMPILE_KERNEL(io/cursor)
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COMPILE_KERNEL(io/cursor)
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COMPILE_KERNEL(io/term)
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COMPILE_KERNEL(io/term)
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COMPILE_KERNEL(io/vga)
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COMPILE_KERNEL(io/vga)
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LINK_KERNEL(kaleid-kernel.elf)
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//LINK_KERNEL(kaleid-kernel.elf)
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//----------------------------------------------------------------------------#
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//----------------------------------------------------------------------------#
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@ -27,6 +27,6 @@ set timeout=5
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set default=0 #Set the default menu entry
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set default=0 #Set the default menu entry
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menuentry "OS/K (pre-pre-alpha 0.0.1)" {
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menuentry "OS/K (pre-pre-alpha 0.0.1)" {
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multiboot /boot/loader.bin # The multiboot command replaces the kernel command
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multiboot /boot/kaleid # The multiboot command replaces the kernel command
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boot
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boot
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}
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}
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@ -44,3 +44,14 @@ bitemporize:
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loop .looping
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loop .looping
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pop rcx
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pop rcx
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ret
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ret
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tritemporize:
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push rcx
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mov rcx, 20
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.looping:
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push rcx
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call bitemporize
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pop rcx
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loop .looping
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pop rcx
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ret
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@ -44,7 +44,7 @@ Is64Bits:
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jz .no_64 ; If it's not set, there is no long mode
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jz .no_64 ; If it's not set, there is no long mode
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ret
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ret
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.no_64:
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.no_64:
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mov ax, "01" ; ERROR 01 : 64bits unsupported
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mov ax, "03" ; ERROR 03 : 64bits unsupported
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jmp Error
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jmp Error
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; ---------------------------------------------------------------------------- ;
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; ---------------------------------------------------------------------------- ;
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@ -1,26 +0,0 @@
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//=--------------------------------------------------------------------------=//
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// GNU GPL OS/K //
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// //
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// Desc: ELF64 Parser and Loader //
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// (x86_64 architecture only) //
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// //
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// //
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// Copyright © 2018-2019 The OS/K Team //
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// //
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// This file is part of OS/K. //
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// //
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// OS/K is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// OS/K is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY//without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//=--------------------------------------------------------------------------=//
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int stub;
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@ -1,33 +0,0 @@
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;=----------------------------------------------------------------------------=;
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; GNU GPL OS/K ;
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; ;
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; Desc: Basic File Allocation Table Long mode Driver ;
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; (x86_64 architecture only) ;
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; ;
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; ;
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; Copyright © 2018-2019 The OS/K Team ;
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; ;
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; This file is part of OS/K. ;
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; ;
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; OS/K is free software: you can redistribute it and/or modify ;
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; it under the terms of the GNU General Public License as published by ;
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; the Free Software Foundation, either version 3 of the License, or ;
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; (at your option) any later version. ;
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; ;
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; OS/K is distributed in the hope that it will be useful, ;
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; but WITHOUT ANY WARRANTY; without even the implied warranty of ;
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;
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; GNU General Public License for more details. ;
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; ;
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; You should have received a copy of the GNU General Public License ;
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; along with OS/K. If not, see <https://www.gnu.org/licenses/>. ;
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;=----------------------------------------------------------------------------=;
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[BITS 64]
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;; GLOBAL DATA
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UserData dw 0
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;; TEXT
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nop
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@ -25,23 +25,27 @@
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;;VIDEO
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;;VIDEO
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%define TRAM 0x0B8000 ; [T]ext[RAM]
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%define TRAM 0xB8000 ; [T]ext[RAM]
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%define VRAM 0x0A0000 ; [V]ideo[RAM]
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%define VRAM 0xA0000 ; [V]ideo[RAM]
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%define VGA_HEIGHT 80
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;; GLOBAL DATA
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;; GLOBAL DATA
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NextTRAM dq 0xB8000 ; Last position of cursor
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NextTRAM dq 0xB8000 ; Last position of cursor
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VGA_HEIGHT64 dq 80
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NextTRAM32 dq 0xB8000 ; Last position of cursor
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VGA_X32 dq 0
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VGA_HEIGHT64 dq VGA_HEIGHT
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VGA_X dq 0
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VGA_X dq 0
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;; TEXT
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;; TEXT
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[BITS 64]
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[BITS 64]
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clear:
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;-----------------------------------------------------------------------;
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;-----------------------------------------------------------------------;
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; x64/LM Clear Text Screen Function ;
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; x64/LM Clear Text Screen Function ;
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;-----------------------------------------------------------------------;
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;-----------------------------------------------------------------------;
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clear:
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mov qword [NextTRAM], TRAM
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mov qword [NextTRAM], TRAM
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mov edi, TRAM
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mov edi, TRAM
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push rsi
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push rsi
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@ -56,12 +60,13 @@ clear:
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pop rdi
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pop rdi
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ret
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ret
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write:
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;-----------------------------------------------------------------------;
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;-----------------------------------------------------------------------;
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; x64/LM Text Printing Functions ;
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; x64/LM Text Printing Functions ;
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; bl : color code ;
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; bl : color code ;
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; esi : string address ;
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; esi : string address ;
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;-----------------------------------------------------------------------;
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;-----------------------------------------------------------------------;
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write:
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mov edi, [NextTRAM] ; TRAM ADDRESS
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mov edi, [NextTRAM] ; TRAM ADDRESS
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push rsi
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push rsi
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push rdi
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push rdi
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@ -124,3 +129,47 @@ dump:
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pop rsi
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pop rsi
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add qword [NextTRAM], 1000 ; Cursor moving : 1120 = 80 * 2 * 7 lignes
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add qword [NextTRAM], 1000 ; Cursor moving : 1120 = 80 * 2 * 7 lignes
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ret
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ret
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[BITS 32]
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;-----------------------------------------------------------------------;
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; x32 Text Printing Functions ;
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; bl : color code ;
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; esi : string address ;
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;-----------------------------------------------------------------------;
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write32:
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mov edi, TRAM ; TRAM ADDRESS
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push esi
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push edi
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.pLoop:
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lodsb
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cmp al, 0 ; while @al, i.e. while we're not hitting '\0'
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je .pEnd
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stosb ; text subpixel
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mov al, bl
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stosb ; color subpixel
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jmp .pLoop
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.pEnd:
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pop edi
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pop esi
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ret
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disable_cursor:
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pushf
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push eax
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push edx
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mov dx, 0x3D4
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mov al, 0xA ; low cursor shape register
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out dx, al
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inc dx
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mov al, 0x20 ; bits 6-7 unused, bit 5 disables the cursor, bits 0-4 control the cursor shape
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out dx, al
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pop edx
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pop eax
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popf
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ret
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[BITS 64]
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@ -1,7 +1,7 @@
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;=----------------------------------------------------------------------------=;
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;=----------------------------------------------------------------------------=;
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; GNU GPL OS/K ;
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; GNU GPL OS/K ;
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; ;
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; ;
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; Desc: Kernel (second stage) Loader for OS/K ;
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; Desc: Kernel Loader for OS/K ;
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; (x86_64 architecture only) ;
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; (x86_64 architecture only) ;
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; ;
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; ;
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; ;
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; ;
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@ -23,36 +23,29 @@
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; along with OS/K. If not, see <https://www.gnu.org/licenses/>. ;
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; along with OS/K. If not, see <https://www.gnu.org/licenses/>. ;
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;=----------------------------------------------------------------------------=;
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;=----------------------------------------------------------------------------=;
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%define DEBUG
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%include "boot/loader/multiboot/header.inc"
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%include "boot/loader/multiboot/check.inc"
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%include "boot/loader/cpu/cpuid.inc"
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%include "boot/loader/mem/management.inc"
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%include "boot/loader/io/terminal.inc"
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%include "boot/loader/cpu/cpu.inc"
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%include "boot/loader/mem/structures.inc"
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[BITS 32]
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[BITS 32]
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[global _start]
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[global MB_start]
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[ORG 0x100000] ; Where GRUB loads us.
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%include "boot/loader/multiboot/header.inc"
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[section .multiboot]
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;; NORMAL ENTRY POINT, BUT A LITTLE BIT UNUSED SINCE WE NEVER USE IT BECAUSE...
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_start:
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mov ax, cs ; correcting cs after the horrible far jump
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mov ds, ax ; hm... And ds too
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mov es, ax ; And es because it is jealous
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;mov [Bootdrv], dl
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xor dl, dl
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jmp 0x0000:_loader ; pas sûr
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;; MAGNIFICENT MULTIBOOT HEADER FOR GRUB ------------------------------------ ;;
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;; MAGNIFICENT MULTIBOOT HEADER FOR GRUB ------------------------------------ ;;
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MB_header:
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MB_header:
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align 4
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ALIGN 4
|
||||||
dd MB_HEADER_MAGIC
|
dd MB_HEADER_MAGIC
|
||||||
dd MB_HEADER_FLAGS
|
dd MB_HEADER_FLAGS
|
||||||
dd CHECKSUM
|
dd CHECKSUM
|
||||||
dd MB_header ; Header address
|
|
||||||
dd _start ; Address of code entry point
|
|
||||||
dd 00 ; (end of code) not necessary
|
|
||||||
dd 00 ; (bss) not necessary
|
|
||||||
dd MB_start ; entry address GRUB will start at
|
|
||||||
|
|
||||||
;; MULTIBOOT POINT ENTRY FOR GRUB ------------------------------------------- ;;
|
[section .text]
|
||||||
|
|
||||||
|
;;MULTIBOOT POINT ENTRY FOR GRUB ------------------------------------------- ;;
|
||||||
MB_start:
|
MB_start:
|
||||||
mov esp, KERNEL_STACK ; Setup the stack
|
mov esp, KERNEL_STACK ; Setup the stack
|
||||||
push 0 ; Reset EFLAGS
|
push 0 ; Reset EFLAGS
|
||||||
|
|
@ -65,30 +58,29 @@ MB_start:
|
||||||
jmp Die ; Aufwiedersehen
|
jmp Die ; Aufwiedersehen
|
||||||
|
|
||||||
;; THE HOLES ---------------------------------------------------------------- ;;
|
;; THE HOLES ---------------------------------------------------------------- ;;
|
||||||
|
|
||||||
; ---------------------------------------------------------------------------- ;
|
; ---------------------------------------------------------------------------- ;
|
||||||
; Prints 'ERR:XX' where 'XX' is the str in AX ;
|
; Prints 'ERR:XX' where 'XX' is the str in AX ;
|
||||||
; ---------------------------------------------------------------------------- ;
|
; ---------------------------------------------------------------------------- ;
|
||||||
Error:
|
Error:
|
||||||
mov dword [0xb8000], 0x4f524f45
|
mov word [CODE], ax
|
||||||
mov dword [0xb8004], 0x4f3a4f52
|
push esi
|
||||||
mov dword [0xb8008], 0x4f204f20
|
mov bl, 0x0c
|
||||||
mov byte [0xb800a], al
|
mov esi, ERGO
|
||||||
mov byte [0xb800c], ah
|
call write32
|
||||||
mov byte [0xb800d], 0x4f
|
pop esi
|
||||||
jmp Die
|
jmp Die
|
||||||
|
ERGO : db 219, 219, 219, " Error "
|
||||||
|
CODE : db "00"
|
||||||
|
db 0x0
|
||||||
; ---------------------------------------------------------------------------- ;
|
; ---------------------------------------------------------------------------- ;
|
||||||
; Kills the mind of your computer to get it prostrated ;
|
; Kills the mind of your computer to get it prostrated ;
|
||||||
; ---------------------------------------------------------------------------- ;
|
; ---------------------------------------------------------------------------- ;
|
||||||
Die:
|
Die:
|
||||||
cli
|
cli
|
||||||
hlt ; die nooooow
|
hlt ; die nooooow
|
||||||
;jmp 0xF000:0xFFF0
|
|
||||||
jmp $
|
jmp $
|
||||||
|
|
||||||
;; THE CODE ----------------------------------------------------------------- ;;
|
;; THE CODE ----------------------------------------------------------------- ;;
|
||||||
|
|
||||||
; ---------------------------------------------------------------------------- ;
|
; ---------------------------------------------------------------------------- ;
|
||||||
; _loader ;
|
; _loader ;
|
||||||
; ;
|
; ;
|
||||||
|
|
@ -103,10 +95,7 @@ Die:
|
||||||
_loader:
|
_loader:
|
||||||
jmp lbegin
|
jmp lbegin
|
||||||
|
|
||||||
%include "boot/loader/multiboot/check.inc"
|
LOGO: db 219, 219, 219, " OS/K", 0
|
||||||
%include "boot/loader/cpu/cpuid.inc"
|
|
||||||
%include "boot/loader/mem/structures.inc"
|
|
||||||
%include "boot/loader/mem/management.inc"
|
|
||||||
|
|
||||||
lbegin:
|
lbegin:
|
||||||
call MB_check
|
call MB_check
|
||||||
|
|
@ -118,18 +107,24 @@ lbegin:
|
||||||
call Setup_paging
|
call Setup_paging
|
||||||
call Go64
|
call Go64
|
||||||
|
|
||||||
|
push esi
|
||||||
|
mov bl, 0x0E
|
||||||
|
mov esi, LOGO
|
||||||
|
call write32
|
||||||
|
pop esi
|
||||||
|
|
||||||
|
call disable_cursor
|
||||||
|
|
||||||
lgdt [GDT64.pointer]
|
lgdt [GDT64.pointer]
|
||||||
jmp GDT64.code:l64
|
jmp GDT64.code:_loader64
|
||||||
|
|
||||||
[BITS 64]
|
[BITS 64]
|
||||||
%include "boot/loader/io/terminal.inc"
|
|
||||||
%include "boot/loader/io/ata.inc"
|
|
||||||
%include "boot/loader/cpu/cpu.inc"
|
|
||||||
|
|
||||||
Salut db 0x09, " Booting OS/K ", 0x09, 0x0A, 0x0D, 0x0
|
|
||||||
ReadAttempt db 0x09, " Attempt to read a sector with ATA commands...", 0
|
|
||||||
|
|
||||||
l64:
|
Salut db "Now in x64 long mode", 0x0A, 0x0D, 0x0
|
||||||
|
GoKernel db "Launching Kernel...", 0
|
||||||
|
|
||||||
|
_loader64:
|
||||||
;; Some cleanup
|
;; Some cleanup
|
||||||
mov ax, 0
|
mov ax, 0
|
||||||
mov ss, ax
|
mov ss, ax
|
||||||
|
|
@ -138,6 +133,10 @@ l64:
|
||||||
mov fs, ax
|
mov fs, ax
|
||||||
mov gs, ax
|
mov gs, ax
|
||||||
|
|
||||||
|
call bitemporize
|
||||||
|
|
||||||
|
mov qword [NextTRAM], TRAM+80*4
|
||||||
|
|
||||||
;; Hello world
|
;; Hello world
|
||||||
mov bl, 0x0A
|
mov bl, 0x0A
|
||||||
mov esi, Salut
|
mov esi, Salut
|
||||||
|
|
@ -145,16 +144,14 @@ l64:
|
||||||
|
|
||||||
;; Read ATA
|
;; Read ATA
|
||||||
mov bl, 0x0F
|
mov bl, 0x0F
|
||||||
mov esi, ReadAttempt
|
mov esi, GoKernel
|
||||||
call write
|
call write
|
||||||
|
|
||||||
call temporize
|
;mov ecx, 4000
|
||||||
|
call tritemporize
|
||||||
|
|
||||||
|
extern StartKern
|
||||||
|
jmp StartKern
|
||||||
|
|
||||||
|
|
||||||
;; Reading a sector of the disk
|
|
||||||
mov bl, 1
|
|
||||||
mov bh, 1
|
|
||||||
call ata_read
|
|
||||||
|
|
||||||
jmp Die
|
jmp Die
|
||||||
|
|
|
||||||
|
|
@ -31,24 +31,24 @@
|
||||||
Setup_paging:
|
Setup_paging:
|
||||||
;; Map the first PML4 entry to PDP table
|
;; Map the first PML4 entry to PDP table
|
||||||
mov eax, PDP_table
|
mov eax, PDP_table
|
||||||
or eax, 0b11 ; present + writable
|
or eax, 1 << 1 | 1 << 0 ; present + writable
|
||||||
mov [PML4_table], eax
|
mov [PML4_table], eax
|
||||||
|
|
||||||
;; Map the first PDP entry to PD table
|
;; Map the first PDP entry to PD table
|
||||||
mov eax, PD_table
|
mov eax, PD_table
|
||||||
or eax, 0b11 ; present + writable
|
or eax, 1 << 1 | 1 << 0 ; present + writable
|
||||||
mov [PDP_table], eax
|
mov [PDP_table], eax
|
||||||
|
|
||||||
;; Map each PD entry to a 'huge' 2MiB page
|
;; Map each PD entry to a 'huge' 2MiB page
|
||||||
mov ecx, 0 ; counter variable
|
mov ecx, 0x0 ; counter variable
|
||||||
.map_p2_table:
|
.map_p2_table:
|
||||||
;; map ecx-th PD entry to a huge page that starts at address 2MiB*ecx
|
;; map ecx-th PD entry to a huge page that starts at address 2MiB*ecx
|
||||||
mov eax, 0x200000
|
mov eax, 0x200000
|
||||||
mul ecx ; start address of ecx-th page
|
mul ecx ; start address of ecx-th page
|
||||||
or eax, 0b10000011 ; present + writable + huge
|
or eax, 1 << 7 | 1 << 1 | 1 << 0 ; present + writable + huge
|
||||||
mov [PD_table + ecx * 8], eax
|
mov [PD_table + ecx * 8], eax
|
||||||
inc ecx
|
inc ecx
|
||||||
cmp ecx, 512 ; if counter == 512, the whole PD table is mapped
|
cmp ecx, 512 ; PD table is mapped if 512
|
||||||
jne .map_p2_table ; else map the next entry
|
jne .map_p2_table ; else map the next entry
|
||||||
|
|
||||||
ret
|
ret
|
||||||
|
|
@ -68,14 +68,14 @@ Go64:
|
||||||
mov cr4, eax ; Enable PAE
|
mov cr4, eax ; Enable PAE
|
||||||
|
|
||||||
;; Activate long mode
|
;; Activate long mode
|
||||||
mov ecx, 0xC0000080 ; address of MSR
|
mov ecx, 0xC0000080 ; Address of MSR
|
||||||
rdmsr ; read MSR
|
rdmsr ; Read MSR
|
||||||
or eax, 1 << 8 ; LME = 1. (Long Mode Enable)
|
or eax, 1 << 8 ; LME = 1. (Long Mode Enable)
|
||||||
wrmsr ; write MSR
|
wrmsr ; Write MSR
|
||||||
|
|
||||||
;; Enable paging
|
;; Enable paging
|
||||||
mov eax, cr0
|
mov eax, cr0
|
||||||
or eax, 1 << 31 ; make MSR bit 31 (PG = Paging) to 1 :
|
or eax, 1 << 31 ; Make MSR bit 31 (PG = Paging) to 1 :
|
||||||
; |1|000000000000000000000000000000
|
; |1|000000000000000000000000000000
|
||||||
; |
|
; |
|
||||||
; `------ Paging bit
|
; `------ Paging bit
|
||||||
|
|
@ -93,16 +93,16 @@ Go64:
|
||||||
; ---------------------------------------------------------------------------- ;
|
; ---------------------------------------------------------------------------- ;
|
||||||
CheckA20:
|
CheckA20:
|
||||||
pushad
|
pushad
|
||||||
mov edi,0x112345 ;odd megabyte address.
|
mov edi, 0x112345 ; Odd megabyte address.
|
||||||
mov esi,0x012345 ;even megabyte address.
|
mov esi, 0x012345 ; Even megabyte address.
|
||||||
mov [esi],esi ;making sure that both addresses contain diffrent values.
|
mov [esi],esi ; Making sure that both addresses contain diffrent values.
|
||||||
mov [edi],edi ;(if A20 line is cleared the two pointers would point to the address 0x012345 that would contain 0x112345 (edi))
|
mov [edi],edi ; (if A20 line is cleared the two pointers would point to the address 0x012345 that would contain 0x112345 (edi))
|
||||||
cmpsd ;compare addresses to see if the're equivalent.
|
cmpsd ; Compare addresses to see if the're equivalent.
|
||||||
popad
|
popad
|
||||||
jne .A20_on ;if not equivalent , A20 line is set.
|
jne .A20_on ; If not equivalent , A20 line is set.
|
||||||
jmp .A20_err
|
jmp .A20_err
|
||||||
.A20_on:
|
.A20_on:
|
||||||
ret
|
ret
|
||||||
.A20_err:
|
.A20_err:
|
||||||
mov ax, "03" ; ERROR 03 : A20 line failed
|
mov ax, "04" ; ERROR 04 : A20 line failed
|
||||||
jmp Error
|
jmp Error
|
||||||
|
|
|
||||||
|
|
@ -24,7 +24,7 @@
|
||||||
;=----------------------------------------------------------------------------=;
|
;=----------------------------------------------------------------------------=;
|
||||||
|
|
||||||
[BITS 32]
|
[BITS 32]
|
||||||
|
section .rodata
|
||||||
;; GDT WITH DOC
|
;; GDT WITH DOC
|
||||||
ALIGN 4096
|
ALIGN 4096
|
||||||
GDT64:
|
GDT64:
|
||||||
|
|
@ -44,6 +44,7 @@ GDT64:
|
||||||
dq GDT64
|
dq GDT64
|
||||||
|
|
||||||
;; EMPTY PAGE TABLES (identity of the first 1GiB)
|
;; EMPTY PAGE TABLES (identity of the first 1GiB)
|
||||||
|
section .bss
|
||||||
ALIGN 4096
|
ALIGN 4096
|
||||||
PML4_table:
|
PML4_table:
|
||||||
resb 4096
|
resb 4096
|
||||||
|
|
@ -51,3 +52,4 @@ PDP_table:
|
||||||
resb 4096
|
resb 4096
|
||||||
PD_table:
|
PD_table:
|
||||||
resb 4096
|
resb 4096
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -24,11 +24,11 @@
|
||||||
;=----------------------------------------------------------------------------=;
|
;=----------------------------------------------------------------------------=;
|
||||||
|
|
||||||
;; MULTIBOOT HEADER
|
;; MULTIBOOT HEADER
|
||||||
MB_AOUT_KLUDGE equ 1 << 16 ; We are not an ELF executable
|
MB_AOUT_KLUDGE equ 0 << 16 ; if we are not an ELF executable
|
||||||
MB_ALIGN equ 1 << 0 ; Ask to align loaded modules on page boundaries
|
MB_ALIGN equ 0 << 0 ; Ask to align loaded modules on page boundaries
|
||||||
MB_MEMINFO equ 1 << 1 ; Ask to provide memory map
|
MB_MEMINFO equ 1 << 1 ; Ask to provide memory map
|
||||||
MB_HEADER_MAGIC equ 0x1badb002
|
MB_HEADER_MAGIC equ 0x1badb002
|
||||||
MB_GRUB_MAGIC equ 0x2badb002
|
MB_GRUB_MAGIC equ 0x2badb002
|
||||||
MB_HEADER_FLAGS equ MB_AOUT_KLUDGE|MB_ALIGN|MB_MEMINFO
|
MB_HEADER_FLAGS equ 0x0 ; MB_AOUT_KLUDGE|MB_ALIGN|MB_MEMINFO
|
||||||
CHECKSUM equ -(MB_HEADER_MAGIC + MB_HEADER_FLAGS)
|
CHECKSUM equ -(MB_HEADER_MAGIC + MB_HEADER_FLAGS)
|
||||||
KERNEL_STACK equ 0x00200000 ; Stack starts at the 2mb address & grows down
|
KERNEL_STACK equ 0x00200000 ; Stack starts at the 2mb address & grows down
|
||||||
|
|
|
||||||
Binary file not shown.
|
|
@ -1,44 +1,68 @@
|
||||||
ENTRY(StartKern)
|
/*----------------------------------------------------------------------------//
|
||||||
SECTIONS
|
// GNU GPL OS/K //
|
||||||
{
|
// //
|
||||||
. = 1M;
|
// Desc: OS/K KERNEL LINKER //
|
||||||
|
// (x86_64 architecture only) //
|
||||||
|
// //
|
||||||
|
// //
|
||||||
|
// Copyright © 2018-2019 The OS/K Team //
|
||||||
|
// //
|
||||||
|
// This file is part of OS/K. //
|
||||||
|
// //
|
||||||
|
// OS/K is free software: you can redistribute it and/or modify //
|
||||||
|
// it under the terms of the GNU General Public License as published by //
|
||||||
|
// the Free Software Foundation, either version 3 of the License, or //
|
||||||
|
// (at your option) any later version. //
|
||||||
|
// //
|
||||||
|
// OS/K is distributed in the hope that it will be useful, //
|
||||||
|
// but WITHOUT ANY WARRANTY//without even the implied warranty of //
|
||||||
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
||||||
|
// GNU General Public License for more details. //
|
||||||
|
// //
|
||||||
|
// You should have received a copy of the GNU General Public License //
|
||||||
|
// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
|
||||||
|
//----------------------------------------------------------------------------*/
|
||||||
|
|
||||||
.text : AT(ADDR(.text) - 1M)
|
|
||||||
|
ENTRY(MB_start) /* the name of the entry label */
|
||||||
|
|
||||||
|
SECTIONS {
|
||||||
|
. = 0x00100000; /* the code should be loaded at 1 MB */
|
||||||
|
|
||||||
|
.boot ALIGN (0x1000) : /* align at 4 KB */
|
||||||
{
|
{
|
||||||
_code = .;
|
*(.multiboot)
|
||||||
*(.text)
|
|
||||||
*(.rodata*)
|
|
||||||
. = ALIGN(4096);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
.data : AT(ADDR(.data) - 1M)
|
.text ALIGN (0x1000) : /* align at 4 KB */
|
||||||
|
{
|
||||||
|
*(.text) /* all text sections from all files */
|
||||||
|
}
|
||||||
|
|
||||||
|
.data ALIGN (0x1000) :
|
||||||
{
|
{
|
||||||
_data = .;
|
_data = .;
|
||||||
*(.data)
|
*(.data)
|
||||||
. = ALIGN(4096);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
.eh_frame : AT(ADDR(.eh_frame) - 1M)
|
.eh_frame ALIGN (0x1000) :
|
||||||
{
|
{
|
||||||
_ehframe = .;
|
_ehframe = .;
|
||||||
*(.eh_frame)
|
*(.eh_frame)
|
||||||
. = ALIGN(4096);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
.bss : AT(ADDR(.bss) - 1M)
|
.bss ALIGN (0x1000) : /* align at 4 KB */
|
||||||
{
|
{
|
||||||
_bss = .;
|
*(.bss) /* all bss sections from all files */
|
||||||
*(.bss)
|
|
||||||
|
|
||||||
*(COMMON)
|
|
||||||
. = ALIGN(4096);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
_end = .;
|
.rodata ALIGN (0x1000) : /* align at 4 KB */
|
||||||
|
{
|
||||||
|
*(.rodata) /* all rodata sections from all files */
|
||||||
|
}
|
||||||
|
|
||||||
/DISCARD/ :
|
/DISCARD/ :
|
||||||
{
|
{
|
||||||
*(.comment)
|
*(.comment)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
|
||||||
Binary file not shown.
Binary file not shown.
|
|
@ -139,7 +139,6 @@ still_going:
|
||||||
mov dx, 0x1f0 ; Data port - data comes in and out of here.
|
mov dx, 0x1f0 ; Data port - data comes in and out of here.
|
||||||
rep insw
|
rep insw
|
||||||
pop rdi
|
pop rdi
|
||||||
%ifdef DEBUG
|
|
||||||
mov bl, 0x0F
|
mov bl, 0x0F
|
||||||
mov esi, buffer
|
mov esi, buffer
|
||||||
call dump
|
call dump
|
||||||
|
|
@ -147,11 +146,6 @@ still_going:
|
||||||
mov esi, ended
|
mov esi, ended
|
||||||
call write
|
call write
|
||||||
add qword [NextTRAM], 120 ; Cursor moving : 1120 = 80 * 2 * 7 lignes
|
add qword [NextTRAM], 120 ; Cursor moving : 1120 = 80 * 2 * 7 lignes
|
||||||
%else
|
|
||||||
mov bl, 0x0A
|
|
||||||
mov esi, Pass
|
|
||||||
call write
|
|
||||||
%endif
|
|
||||||
pop rdx
|
pop rdx
|
||||||
pop rcx
|
pop rcx
|
||||||
pop rbx
|
pop rbx
|
||||||
Loading…
Reference in New Issue