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.set ALIGN, 1<<0 #align is 1

.set MEMINFO, 1<<1 #meminfo is 2

.set FLAGS, ALIGN | MEMINFO

.set MAGIC, 0x1BADB002

.set CHECKSUM, -(MAGIC + FLAGS)


.section .multiboot, "a" #a means allocatable section

.align 4

.long MAGIC

.long FLAGS

.long CHECKSUM


.section .text

.code32

.global ___start

.extern ___kmain


___start:

    mov $stack_top, %esp


    push %ebx #second arg: ptr to multiboot info

    push %eax #first arg: magic num (0x1BADB002)


    call ___kmain


    cli #not very obvious, basically just continue and clear interrupts

hang: #if it doesnt go we just halt and jmp so it doesnt stop halting

    hlt

    jmp hang


.section .bss

.align 16

stack_bottom:

    .skip 16384

stack_top: