;; Copyright 2010 Free Software Foundation, Inc. | |
;; Contributed by Bernd Schmidt <bernds@codesourcery.com>. | |
;; | |
;; This program is free software; you can redistribute it and/or modify | |
;; it under the terms of the GNU General Public License as published by | |
;; the Free Software Foundation; either version 2 of the License, or | |
;; (at your option) any later version. | |
;; | |
;; This program is distributed in the hope that it will be useful, | |
;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
;; GNU General Public License for more details. | |
;; | |
;; You should have received a copy of the GNU General Public License | |
;; along with this program; if not, write to the Free Software | |
;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
#include <linux/linkage.h> | |
.text | |
ENTRY(__c6xabi_strasgi) | |
;; This is essentially memcpy, with alignment known to be at least | |
;; 4, and the size a multiple of 4 greater than or equal to 28. | |
ldw .d2t1 *B4++, A0 | |
|| mvk .s2 16, B1 | |
ldw .d2t1 *B4++, A1 | |
|| mvk .s2 20, B2 | |
|| sub .d1 A6, 24, A6 | |
ldw .d2t1 *B4++, A5 | |
ldw .d2t1 *B4++, A7 | |
|| mv .l2x A6, B7 | |
ldw .d2t1 *B4++, A8 | |
ldw .d2t1 *B4++, A9 | |
|| mv .s2x A0, B5 | |
|| cmpltu .l2 B2, B7, B0 | |
_strasgi_loop: | |
stw .d1t2 B5, *A4++ | |
|| [B0] ldw .d2t1 *B4++, A0 | |
|| mv .s2x A1, B5 | |
|| mv .l2 B7, B6 | |
[B0] sub .d2 B6, 24, B7 | |
|| [B0] b .s2 _strasgi_loop | |
|| cmpltu .l2 B1, B6, B0 | |
[B0] ldw .d2t1 *B4++, A1 | |
|| stw .d1t2 B5, *A4++ | |
|| mv .s2x A5, B5 | |
|| cmpltu .l2 12, B6, B0 | |
[B0] ldw .d2t1 *B4++, A5 | |
|| stw .d1t2 B5, *A4++ | |
|| mv .s2x A7, B5 | |
|| cmpltu .l2 8, B6, B0 | |
[B0] ldw .d2t1 *B4++, A7 | |
|| stw .d1t2 B5, *A4++ | |
|| mv .s2x A8, B5 | |
|| cmpltu .l2 4, B6, B0 | |
[B0] ldw .d2t1 *B4++, A8 | |
|| stw .d1t2 B5, *A4++ | |
|| mv .s2x A9, B5 | |
|| cmpltu .l2 0, B6, B0 | |
[B0] ldw .d2t1 *B4++, A9 | |
|| stw .d1t2 B5, *A4++ | |
|| mv .s2x A0, B5 | |
|| cmpltu .l2 B2, B7, B0 | |
;; loop back branch happens here | |
cmpltu .l2 B1, B6, B0 | |
|| ret .s2 b3 | |
[B0] stw .d1t1 A1, *A4++ | |
|| cmpltu .l2 12, B6, B0 | |
[B0] stw .d1t1 A5, *A4++ | |
|| cmpltu .l2 8, B6, B0 | |
[B0] stw .d1t1 A7, *A4++ | |
|| cmpltu .l2 4, B6, B0 | |
[B0] stw .d1t1 A8, *A4++ | |
|| cmpltu .l2 0, B6, B0 | |
[B0] stw .d1t1 A9, *A4++ | |
;; return happens here | |
ENDPROC(__c6xabi_strasgi) |