Syncboot/arch/i386/boot.s
Jenny Curle 31d2e10b69 Implement a GDT, IDT with ISR and IRQ
Basically, added error handling, interrupts and basic hardware communication is now possible. Yay.
2019-04-07 23:43:09 +01:00

38 lines
526 B
ArmAsm
Executable File

.set ALIGN, 1<<0
.set MEMINFO, 1<<1
.set FLAGS, ALIGN | MEMINFO
.set MAGIC, 0x1BADB002
.set CHECKSUM, -(MAGIC + FLAGS)
.section .multiboot
.align 4
.long MAGIC
.long FLAGS
.long CHECKSUM
# C stack startup
.section .bss
.align 16
stack_bottom:
.skip 16384
stack_top:
# start function - calls kernel_main
.section .text
.global _start
.type _start, @function
_start:
movl $stack_top, %esp
call _init
call kernel_main
cli
1: hlt
jmp 1b
.size _start, . - _start