random:
	pusha
	mov ah, 0x00
	int 0x1A

	ror dx,2			; Copied from os-dev because time
 	shr dx, 14
 	xchg dl,dh

 	mov word [r_X], dx

 	; a * X
 	mov word ax, [r_a]
 	mov bx, dx
 	xor dx, dx
 	mul bx

 	; + c
 	add ax, [r_c]
 	mov word [r_X], ax

 	; mod m
 	xor dx, dx
 	mov word bx, [r_m]
 	mov ax, [r_X]
 	div ax

 	; X =
 	mov [r_X], ax

	popa
	ret