;; 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)