1/* 2Copyright (c) 1990 The Regents of the University of California. 3All rights reserved. 4 5Redistribution and use in source and binary forms are permitted 6provided that the above copyright notice and this paragraph are 7duplicated in all such forms and that any documentation, 8and/or other materials related to such 9distribution and use acknowledge that the software was developed 10by the University of California, Berkeley. The name of the 11University may not be used to endorse or promote products derived 12from this software without specific prior written permission. 13THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 .file "memset.S" 18 19 .section .text 20 .global _memset 21 .type _memset,@function 22_memset: 23 movm [d2,d3,a2,a3], (sp) 24.Lend_of_prologue: 25 mov d0, d3 26 mov d1, d2 27 mov (28, sp),a1 28 mov d3, a0 29#ifndef __OPTIMIZE_SIZE__ 30 cmp 3, a1 31 bls .L41 32 btst 3, d3 33 bne .L41 34 extbu d2 35 mov d2, d1 36 asl 8, d1 37 or d2, d1 38 mov d1, d0 39 asl 16, d0 40 or d0, d1 41 cmp 15, a1 42 bls .L36 43 setlb 44 mov d1, (a0) 45 inc4 a0 46 mov d1, (a0) 47 inc4 a0 48 mov d1, (a0) 49 inc4 a0 50 mov d1, (a0) 51 inc4 a0 52 add -16, a1 53 cmp 15, a1 54 lhi 55.L36: 56 cmp 3, a1 57 bls .L41 58 setlb 59 mov d1, (a0) 60 inc4 a0 61 add -4, a1 62 cmp 3, a1 63 lhi 64.L41: 65#endif 66 cmp 0, a1 67 beq .Lepilogue 68 setlb 69 movbu d2, (a0) 70 inc a0 71 sub 1, a1 72 lne 73.Lepilogue: 74 mov d3,a0 75 ret [d2,d3,a2,a3], 16 76.Lend_of_memset: 77 .size _memset, .Lend_of_memset - _memset 78 79 .section .debug_frame,"",@progbits 80.Lstart_of_debug_frame: 81 # Common Information Entry (CIE) 82 .4byte .Lend_of_CIE - .Lstart_of_CIE # CIE Length 83.Lstart_of_CIE: 84 .4byte 0xffffffff # CIE Identifier Tag 85 .byte 0x1 # CIE Version 86 .ascii "\0" # CIE Augmentation 87 .uleb128 0x1 # CIE Code Alignment Factor 88 .sleb128 -4 # CIE Data Alignment Factor 89 .byte 0x32 # CIE RA Column 90 .byte 0xc # DW_CFA_def_cfa 91 .uleb128 0x9 92 .uleb128 0x0 93 .byte 0xb2 # DW_CFA_offset, column 0x32 94 .uleb128 0x0 95 .align 2 96.Lend_of_CIE: 97 98 # Frame Description Entry (FDE) 99 .4byte .Lend_of_FDE - .Lstart_of_FDE # FDE Length 100.Lstart_of_FDE: 101 .4byte .Lstart_of_debug_frame # FDE CIE offset 102 .4byte _memset # FDE initial location 103 .4byte .Lend_of_memset - _memset # FDE address range 104 .byte 0x4 # DW_CFA_advance_loc4 105 .4byte .Lend_of_prologue - _memset 106 .byte 0xe # DW_CFA_def_cfa_offset 107 .uleb128 0x4 108 .byte 0x87 # DW_CFA_offset, column 0x7 109 .uleb128 0x1 110 .align 2 111.Lend_of_FDE: 112