default rel            ; make [rel format] the default, you always want this. idk why i always want this but im taking it anyway
extern puts
extern printf



section .data
	text db "Bottom Text",0
	val dq 123.45

section .bss
	res resq 1      ; reserve 1 quadword for result

section .rodata
    format db "%#f", 10, 0   ; C 0-terminated string: "%#x\n" idk why this is in its own section im just stealing code
    
section .text
	global main

main:
	sub   rsp, 8 	;this is needed because im using "C"


	; load value into st(0)
	fld qword [val]  ; treat val as an address to a qword <it has to know that its a qword i think idk this shit is scary>

	; compute square root of st(0) and store the result in st(0)
	fsqrt	;<so like the fpu has like its own registers that cant be used with mov and they act as a stack or somthing and its fucking scary help me>

	; store st(0) at res, and pop it off the x87 stack
	fstp qword [res]

	; the FPU stack is now empty again




	mov rdi, res
	cld
	call puts	;this is the puts way of printing a string

	mov   esi, res
	lea   rdi, [rel format]
	cld
	call  printf


_end:
	add rsp, 8
	ret
	
;	mov rax, 60		; exit
;	mov edi, 1 		; error 1 dont need the exit anymore beacue libc or somthing
;	syscall