| /* | |
| * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License version 2 as | |
| * published by the Free Software Foundation. | |
| */ | |
| #include <linux/linkage.h> | |
| ENTRY_CFI(memcpy) | |
| or r3,r0,r1 | |
| asl_s r3,r3,30 | |
| mov_s r5,r0 | |
| brls.d r2,r3,.Lcopy_bytewise | |
| sub.f r3,r2,1 | |
| ld_s r12,[r1,0] | |
| asr.f lp_count,r3,3 | |
| bbit0.d r3,2,.Lnox4 | |
| bmsk_s r2,r2,1 | |
| st.ab r12,[r5,4] | |
| ld.a r12,[r1,4] | |
| .Lnox4: | |
| lppnz .Lendloop | |
| ld_s r3,[r1,4] | |
| st.ab r12,[r5,4] | |
| ld.a r12,[r1,8] | |
| st.ab r3,[r5,4] | |
| .Lendloop: | |
| breq r2,0,.Last_store | |
| ld r3,[r5,0] | |
| #ifdef __LITTLE_ENDIAN__ | |
| add3 r2,-1,r2 | |
| ; uses long immediate | |
| xor_s r12,r12,r3 | |
| bmsk r12,r12,r2 | |
| xor_s r12,r12,r3 | |
| #else /* BIG ENDIAN */ | |
| sub3 r2,31,r2 | |
| ; uses long immediate | |
| xor_s r3,r3,r12 | |
| bmsk r3,r3,r2 | |
| xor_s r12,r12,r3 | |
| #endif /* ENDIAN */ | |
| .Last_store: | |
| j_s.d [blink] | |
| st r12,[r5,0] | |
| .balign 4 | |
| .Lcopy_bytewise: | |
| jcs [blink] | |
| ldb_s r12,[r1,0] | |
| lsr.f lp_count,r3 | |
| bhs_s .Lnox1 | |
| stb.ab r12,[r5,1] | |
| ldb.a r12,[r1,1] | |
| .Lnox1: | |
| lppnz .Lendbloop | |
| ldb_s r3,[r1,1] | |
| stb.ab r12,[r5,1] | |
| ldb.a r12,[r1,2] | |
| stb.ab r3,[r5,1] | |
| .Lendbloop: | |
| j_s.d [blink] | |
| stb r12,[r5,0] | |
| END_CFI(memcpy) |