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| /*
| * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
| *
| * SPDX-License-Identifier: GPL-2.0+
| */
|
| .global memcpy
| .align 4
| 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]
|
|
