| 1 | /* SPDX-License-Identifier: GPL-2.0-only */
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| 2 | /*
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| 3 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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| 4 | */
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| 5 |
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| 6 | |
| 7 |
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| 8 | |
| 9 |
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| 10 | ENTRY_CFI(memset)
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| 11 | mov_s r4,r0
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| 12 | or r12,r0,r2
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| 13 | bmsk.f r12,r12,1
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| 14 | extb_s r1,r1
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| 15 | asl r3,r1,8
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| 16 | beq.d .Laligned
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| 17 | or_s r1,r1,r3
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| 18 | brls r2,SMALL,.Ltiny
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| 19 | add r3,r2,r0
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| 20 | stb r1,[r3,-1]
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| 21 | bclr_s r3,r3,0
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| 22 | stw r1,[r3,-2]
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| 23 | bmsk.f r12,r0,1
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| 24 | add_s r2,r2,r12
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| 25 | sub.ne r2,r2,4
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| 26 | stb.ab r1,[r4,1]
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| 27 | and r4,r4,-2
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| 28 | stw.ab r1,[r4,2]
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| 29 | and r4,r4,-4
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| 30 | .Laligned: ; This code address should be aligned for speed.
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| 31 | asl r3,r1,16
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| 32 | lsr.f lp_count,r2,2
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| 33 | or_s r1,r1,r3
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| 34 | lpne .Loop_end
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| 35 | st.ab r1,[r4,4]
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| 36 | .Loop_end:
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| 37 | j_s [blink]
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| 38 |
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| 39 | .balign 4
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| 40 | .Ltiny:
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| 41 | mov.f lp_count,r2
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| 42 | lpne .Ltiny_end
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| 43 | stb.ab r1,[r4,1]
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| 44 | .Ltiny_end:
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| 45 | j_s [blink]
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| 46 | END_CFI(memset)
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| 47 |
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| 48 | ; memzero: @r0 = mem, @r1 = size_t
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| 49 | ; memset: @r0 = mem, @r1 = char, @r2 = size_t
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| 50 |
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| 51 | ENTRY_CFI(memzero)
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| 52 | ; adjust bzero args to memset args
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| 53 | mov r2, r1
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| 54 | mov r1, 0
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| 55 | b memset ;tail call so need to tinker with blink
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| 56 | END_CFI(memzero)
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