Mercurial > dropbear

view libtommath/etc/timer.asm @ 1565:2fd52c383163

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mention localoptions.h being build directory, fix underscore in CHANGES
author Matt Johnston <matt@ucc.asn.au>
date Thu, 01 Mar 2018 22:12:30 +0800
parents eed26cff980b
children
line wrap: on
line source

; x86 timer in NASM
;
; Tom St Denis, [email protected]
[bits 32]
[section .data]
time dd 0, 0

[section .text]

%ifdef USE_ELF
[global t_start]
t_start:
%else
[global _t_start]
_t_start:
%endif
   push edx
   push eax
   rdtsc
   mov [time+0],edx
   mov [time+4],eax
   pop eax
   pop edx
   ret
   
%ifdef USE_ELF
[global t_read]
t_read:
%else
[global _t_read]
_t_read:
%endif
   rdtsc
   sub eax,[time+4]
   sbb edx,[time+0]
   ret