Minor changes for parity
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a1c00187c4
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@ -1,42 +1,39 @@
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MBOOT_ALIGN equ 1<<0
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MBOOT_MEMINFO equ 1<<1
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MBOOT_FLAGS equ MBOOT_ALIGN | MBOOT_MEMINFO
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MBOOT_MAGIC equ 0x1BADB002
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MBOOT_CHECKSUM equ -(MBOOT_MAGIC + MBOOT_FLAGS)
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[BITS 32]
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[GLOBAL mboot]
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[SECTION .multiboot]
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[GLOBAL start]
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start:
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mov esp, _sys_stack
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jmp stublet
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ALIGN 4
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mboot:
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dd MBOOT_MAGIC
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dd MBOOT_FLAGS
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dd MBOOT_CHECKSUM
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MULTIBOOT_ALIGN equ 1<<0
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MULTIBOOT_MEM equ 1<<1
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MULTIBOOT_AOUT equ 1<<16
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MULTIBOOT_MAGIC equ 0x1BADB002
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MULTIBOOT_FLAGS equ MULTIBOOT_ALIGN | MULTIBOOT_MEM | MULTIBOOT_AOUT
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MULTIBOOT_CHECKSUM equ -(MULTIBOOT_MAGIC + MULTIBOOT_FLAGS)
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EXTERN code, bss, end
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SECTION .bss
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ALIGN 16
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stack_bottom:
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RESB 16384
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stack_top:
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dd MULTIBOOT_MAGIC
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dd MULTIBOOT_FLAGS
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dd MULTIBOOT_CHECKSUM
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dd mboot
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dd code
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dd bss
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dd end
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dd start
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SECTION .text
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[GLOBAL _start]
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[EXTERN kernel_main]
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_start:
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push ebx
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cli
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stublet:
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EXTERN kernel_main
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call kernel_main
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jmp $
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[GLOBAL load_gdt] ; Allows the C code to call gdt_flush().
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[EXTERN gp]
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load_gdt:
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mov eax, [esp+4] ; Get the pointer to the GDT, passed as a parameter.
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lgdt [eax] ; Load the new GDT pointer
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lgdt [gp] ; Load the new GDT pointer
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mov ax, 0x10 ; 0x10 is the offset in the GDT to our data segment
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mov ds, ax ; Load all data segment selectors
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@ -184,3 +181,6 @@ idt_load:
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lidt [eax]
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ret
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SECTION .bss
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resb 8192
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_sys_stack:
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@ -1,31 +1,25 @@
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ENTRY(_start)
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OUTPUT_FORMAT("binary")
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ENTRY(start)
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phys = 0x00100000;
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SECTIONS
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{
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. = 1M;
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.text BLOCK(4K) : ALIGN(4K)
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{
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*(.multiboot)
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*(.text)
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.text phys : AT(phys) {
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code = .;
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*(.text)
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*(.rodata)
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. = ALIGN(4096);
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}
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.rodata BLOCK(4K) : ALIGN(4K)
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.data : AT(phys + (data - code))
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{
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*(.rodata)
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data = .;
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*(.data)
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. = ALIGN(4096);
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}
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.data BLOCK(4K) : ALIGN(4K)
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.bss : AT(phys + (bss - code))
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{
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*(.data)
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bss = .;
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*(.bss)
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. = ALIGN(4096);
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}
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.bss BLOCK(4K) : ALIGN(4K)
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{
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*(COMMON)
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*(.bss)
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}
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end = .;
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}
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24
bochsrc.txt
24
bochsrc.txt
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@ -3,18 +3,14 @@ plugin_ctrl: unmapped=1, biosdev=1, speaker=1, extfpuirq=1, parallel=1, serial=1
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config_interface: textconfig
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display_library: x
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memory: host=32, guest=32
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romimage: file="/usr/share/bochs/BIOS-bochs-latest", options=none
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romimage: file="/usr/share/bochs/BIOS-bochs-latest", address=0x0, options=none
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vgaromimage: file="/usr/share/bochs/VGABIOS-lgpl-latest"
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boot: floppy
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floppy_bootsig_check: disabled=0
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#floppya: 1_44=red.img, status=inserted
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boot: a
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floppy_bootsig_check: disabled=1
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floppya: 1_44=/dev/loop0, status=inserted
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# no floppyb
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ata0: enabled=1, ioaddr1=0x1f0, ioaddr2=0x3f0, irq=14
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ata0-master: type=cdrom, path=red.iso, status=inserted
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ata0-slave: type=none
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ata1: enabled=1, ioaddr1=0x170, ioaddr2=0x370, irq=15
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ata1-master: type=none
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ata1-slave: type=none
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ata0: enabled=0
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ata1: enabled=0
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ata2: enabled=0
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ata3: enabled=0
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optromimage1: file=none
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@ -27,20 +23,20 @@ optramimage3: file=none
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optramimage4: file=none
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pci: enabled=1, chipset=i440fx
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vga: extension=vbe, update_freq=5, realtime=1
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cpu: count=1:1:1, ips=4000000, quantum=16, model=bx_generic, reset_on_triple_fault=1, cpuid_limit_winnt=0, ignore_bad_msrs=1, mwait_is_nop=0
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cpu: count=1:1:1, ips=1000000, quantum=16, model=bx_generic, reset_on_triple_fault=0, cpuid_limit_winnt=0, ignore_bad_msrs=1, mwait_is_nop=0
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cpuid: level=6, stepping=3, model=3, family=6, vendor_string="AuthenticAMD", brand_string="AMD Athlon(tm) processor"
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cpuid: mmx=1, apic=xapic, simd=sse2, sse4a=0, misaligned_sse=0, sep=1, movbe=0, adx=0
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cpuid: aes=0, sha=0, xsave=0, xsaveopt=0, avx_f16c=0, avx_fma=0, bmi=0, xop=0, fma4=0
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cpuid: tbm=0, x86_64=1, 1g_pages=0, pcid=0, fsgsbase=0, smep=0, smap=0, mwait=1
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print_timestamps: enabled=0
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debugger_log: -
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magic_break: enabled=0
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debugger_log: ../red.debug
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magic_break: enabled=1
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port_e9_hack: enabled=0
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private_colormap: enabled=0
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clock: sync=none, time0=local, rtc_sync=0
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# no cmosimage
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# no loader
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log: -
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log: ../red.log
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logprefix: %t%e%d
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debug: action=ignore
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info: action=report
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7
iso/boot/grub/grub.cfg
Normal file
7
iso/boot/grub/grub.cfg
Normal file
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@ -0,0 +1,7 @@
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set timeout=10
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set default=0
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menuentry "ProjectRED" {
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multiboot /boot/red.kernel
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boot
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}
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