15210d1e6SVineet Gupta/* 25210d1e6SVineet Gupta * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 35210d1e6SVineet Gupta * 45210d1e6SVineet Gupta * This program is free software; you can redistribute it and/or modify 55210d1e6SVineet Gupta * it under the terms of the GNU General Public License version 2 as 65210d1e6SVineet Gupta * published by the Free Software Foundation. 75210d1e6SVineet Gupta */ 85210d1e6SVineet Gupta 9*ec7ac6afSVineet Gupta#include <linux/linkage.h> 105210d1e6SVineet Gupta 11*ec7ac6afSVineet GuptaENTRY(strlen) 125210d1e6SVineet Gupta or r3,r0,7 135210d1e6SVineet Gupta ld r2,[r3,-7] 145210d1e6SVineet Gupta ld.a r6,[r3,-3] 155210d1e6SVineet Gupta mov r4,0x01010101 165210d1e6SVineet Gupta ; uses long immediate 175210d1e6SVineet Gupta#ifdef __LITTLE_ENDIAN__ 185210d1e6SVineet Gupta asl_s r1,r0,3 195210d1e6SVineet Gupta btst_s r0,2 205210d1e6SVineet Gupta asl r7,r4,r1 215210d1e6SVineet Gupta ror r5,r4 225210d1e6SVineet Gupta sub r1,r2,r7 235210d1e6SVineet Gupta bic_s r1,r1,r2 245210d1e6SVineet Gupta mov.eq r7,r4 255210d1e6SVineet Gupta sub r12,r6,r7 265210d1e6SVineet Gupta bic r12,r12,r6 275210d1e6SVineet Gupta or.eq r12,r12,r1 285210d1e6SVineet Gupta and r12,r12,r5 295210d1e6SVineet Gupta brne r12,0,.Learly_end 305210d1e6SVineet Gupta#else /* BIG ENDIAN */ 315210d1e6SVineet Gupta ror r5,r4 325210d1e6SVineet Gupta btst_s r0,2 335210d1e6SVineet Gupta mov_s r1,31 345210d1e6SVineet Gupta sub3 r7,r1,r0 355210d1e6SVineet Gupta sub r1,r2,r4 365210d1e6SVineet Gupta bic_s r1,r1,r2 375210d1e6SVineet Gupta bmsk r1,r1,r7 385210d1e6SVineet Gupta sub r12,r6,r4 395210d1e6SVineet Gupta bic r12,r12,r6 405210d1e6SVineet Gupta bmsk.ne r12,r12,r7 415210d1e6SVineet Gupta or.eq r12,r12,r1 425210d1e6SVineet Gupta and r12,r12,r5 435210d1e6SVineet Gupta brne r12,0,.Learly_end 445210d1e6SVineet Gupta#endif /* ENDIAN */ 455210d1e6SVineet Gupta 465210d1e6SVineet Gupta.Loop: 475210d1e6SVineet Gupta ld_s r2,[r3,4] 485210d1e6SVineet Gupta ld.a r6,[r3,8] 495210d1e6SVineet Gupta ; stall for load result 505210d1e6SVineet Gupta sub r1,r2,r4 515210d1e6SVineet Gupta bic_s r1,r1,r2 525210d1e6SVineet Gupta sub r12,r6,r4 535210d1e6SVineet Gupta bic r12,r12,r6 545210d1e6SVineet Gupta or r12,r12,r1 555210d1e6SVineet Gupta and r12,r12,r5 565210d1e6SVineet Gupta breq r12,0,.Loop 575210d1e6SVineet Gupta.Lend: 585210d1e6SVineet Gupta and.f r1,r1,r5 595210d1e6SVineet Gupta sub.ne r3,r3,4 605210d1e6SVineet Gupta mov.eq r1,r12 615210d1e6SVineet Gupta#ifdef __LITTLE_ENDIAN__ 625210d1e6SVineet Gupta sub_s r2,r1,1 635210d1e6SVineet Gupta bic_s r2,r2,r1 645210d1e6SVineet Gupta norm r1,r2 655210d1e6SVineet Gupta sub_s r0,r0,3 665210d1e6SVineet Gupta lsr_s r1,r1,3 675210d1e6SVineet Gupta sub r0,r3,r0 685210d1e6SVineet Gupta j_s.d [blink] 695210d1e6SVineet Gupta sub r0,r0,r1 705210d1e6SVineet Gupta#else /* BIG ENDIAN */ 715210d1e6SVineet Gupta lsr_s r1,r1,7 725210d1e6SVineet Gupta mov.eq r2,r6 735210d1e6SVineet Gupta bic_s r1,r1,r2 745210d1e6SVineet Gupta norm r1,r1 755210d1e6SVineet Gupta sub r0,r3,r0 765210d1e6SVineet Gupta lsr_s r1,r1,3 775210d1e6SVineet Gupta j_s.d [blink] 785210d1e6SVineet Gupta add r0,r0,r1 795210d1e6SVineet Gupta#endif /* ENDIAN */ 805210d1e6SVineet Gupta.Learly_end: 815210d1e6SVineet Gupta b.d .Lend 825210d1e6SVineet Gupta sub_s.ne r1,r1,r1 83*ec7ac6afSVineet GuptaEND(strlen) 84