;fpav - floating-Point Absolute Value Example
section .data
; -----
; Define constants.
TRUE equ 1
FALSE equ 0
EXIT_SUCCESS equ 0 ; successful operation
SYS_exit equ 60 ; call code for terminate
; -----
; Define some test variables.
dZero dq 0.0
dNegOne dq -1.0
fltVal dq -8.25
; *********************************************************
section .text
global _start
_start:
; -----
; Perform absolute value function on flt1
movsd xmm0, qword [fltVal]
ucomisd xmm0, qword [dZero]
jae isPos
mulsd xmm0, qword [dNegOne]
movsd qword [fltVal], xmm0
isPos:
; -----
; Done, terminate program.
last:
mov rax, SYS_exit
mov rbx, EXIT_SUCCESS ; exit w/success
syscall