/* * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved. * * SPDX-License-Identifier: GPL-2.0+ */ #define SMALL 7 /* Must be at least 6 to deal with alignment/loop issues. */ .global memset .align 4 memset: mov_s %r4, %r0 or %r12, %r0, %r2 bmsk.f %r12, %r12, 1 extb_s %r1, %r1 asl %r3, %r1, 8 beq.d .Laligned or_s %r1, %r1, %r3 brls %r2, SMALL, .Ltiny add %r3, %r2, %r0 stb %r1, [%r3, -1] bclr_s %r3, %r3, 0 stw %r1, [%r3, -2] bmsk.f %r12, %r0, 1 add_s %r2, %r2, %r12 sub.ne %r2, %r2, 4 stb.ab %r1, [%r4, 1] and %r4, %r4, -2 stw.ab %r1, [%r4, 2] and %r4, %r4, -4 .balign 4 .Laligned: asl %r3, %r1, 16 lsr.f %lp_count, %r2, 2 or_s %r1, %r1, %r3 lpne .Loop_end st.ab %r1, [%r4, 4] .Loop_end: j_s [%blink] .balign 4 .Ltiny: mov.f %lp_count, %r2 lpne .Ltiny_end stb.ab %r1, [%r4, 1] .Ltiny_end: j_s [%blink] /* * memzero: @r0 = mem, @r1 = size_t * memset: @r0 = mem, @r1 = char, @r2 = size_t */ .global memzero .align 4 memzero: /* adjust bzero args to memset args */ mov %r2, %r1 mov %r1, 0 /* tail call so need to tinker with blink */ b memset