Simple string printer in x86 ASM.

kern_print.asm

global start

section .text
bits 32

string_start:
	dw 0x2f33, 0x2f32, 0x2f4f, 0x2f4b, 0x0
  
start:
    mov esp, stack_top
    mov ecx, 0x0 ; begin writing at character 0 in string
    mov ebx, string_start ; string starts at this pointer
    call write_string ; call display write
    hlt

write_string:
	mov dx, [2*ecx + ebx]
	cmp dx, 0x0
	jz .endwrite
	mov [2*ecx + 0xb8000], dx
	inc ecx
	jmp write_string
.endwrite:
	ret
	
stack_top: