1*4882a593Smuzhiyun/* 2*4882a593Smuzhiyun * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun.global memcpy 8*4882a593Smuzhiyun.align 4 9*4882a593Smuzhiyunmemcpy: 10*4882a593Smuzhiyun or %r3, %r0, %r1 11*4882a593Smuzhiyun asl_s %r3, %r3, 30 12*4882a593Smuzhiyun mov_s %r5, %r0 13*4882a593Smuzhiyun brls.d %r2, %r3, .Lcopy_bytewise 14*4882a593Smuzhiyun sub.f %r3, %r2, 1 15*4882a593Smuzhiyun ld_s %r12, [%r1, 0] 16*4882a593Smuzhiyun asr.f %lp_count, %r3, 3 17*4882a593Smuzhiyun bbit0.d %r3, 2, .Lnox4 18*4882a593Smuzhiyun bmsk_s %r2, %r2, 1 19*4882a593Smuzhiyun st.ab %r12, [%r5, 4] 20*4882a593Smuzhiyun ld.a %r12, [%r1, 4] 21*4882a593Smuzhiyun.Lnox4: 22*4882a593Smuzhiyun lppnz .Lendloop 23*4882a593Smuzhiyun ld_s %r3, [%r1, 4] 24*4882a593Smuzhiyun st.ab %r12, [%r5, 4] 25*4882a593Smuzhiyun ld.a %r12, [%r1, 8] 26*4882a593Smuzhiyun st.ab %r3, [%r5, 4] 27*4882a593Smuzhiyun.Lendloop: 28*4882a593Smuzhiyun breq %r2, 0, .Last_store 29*4882a593Smuzhiyun ld %r3, [%r5, 0] 30*4882a593Smuzhiyun#ifdef __LITTLE_ENDIAN__ 31*4882a593Smuzhiyun add3 %r2, -1, %r2 32*4882a593Smuzhiyun /* uses long immediate */ 33*4882a593Smuzhiyun xor_s %r12, %r12, %r3 34*4882a593Smuzhiyun bmsk %r12, %r12, %r2 35*4882a593Smuzhiyun xor_s %r12, %r12, %r3 36*4882a593Smuzhiyun#else /* __BIG_ENDIAN__ */ 37*4882a593Smuzhiyun sub3 %r2, 31, %r2 38*4882a593Smuzhiyun /* uses long immediate */ 39*4882a593Smuzhiyun xor_s %r3, %r3, %r12 40*4882a593Smuzhiyun bmsk %r3, %r3, %r2 41*4882a593Smuzhiyun xor_s %r12, %r12, %r3 42*4882a593Smuzhiyun#endif /* _ENDIAN__ */ 43*4882a593Smuzhiyun.Last_store: 44*4882a593Smuzhiyun j_s.d [%blink] 45*4882a593Smuzhiyun st %r12, [%r5, 0] 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun .balign 4 48*4882a593Smuzhiyun.Lcopy_bytewise: 49*4882a593Smuzhiyun jcs [%blink] 50*4882a593Smuzhiyun ldb_s %r12, [%r1, 0] 51*4882a593Smuzhiyun lsr.f %lp_count, %r3 52*4882a593Smuzhiyun bhs_s .Lnox1 53*4882a593Smuzhiyun stb.ab %r12, [%r5, 1] 54*4882a593Smuzhiyun ldb.a %r12, [%r1, 1] 55*4882a593Smuzhiyun.Lnox1: 56*4882a593Smuzhiyun lppnz .Lendbloop 57*4882a593Smuzhiyun ldb_s %r3, [%r1, 1] 58*4882a593Smuzhiyun stb.ab %r12, [%r5, 1] 59*4882a593Smuzhiyun ldb.a %r12, [%r1, 2] 60*4882a593Smuzhiyun stb.ab %r3, [%r5, 1] 61*4882a593Smuzhiyun.Lendbloop: 62*4882a593Smuzhiyun j_s.d [%blink] 63*4882a593Smuzhiyun stb %r12, [%r5, 0] 64