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Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.8 KB
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| Line | |
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| 1 | .file "memchr.S" |
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| 2 | |
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| 3 | .section .text |
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| 4 | .global _memchr |
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| 5 | .type _memchr,@function |
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| 6 | _memchr: |
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| 7 | movm [d2,d3,a2,a3],(sp) |
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| 8 | .Lend_of_prologue: |
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| 9 | mov d0,a0 |
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| 10 | mov d1,d2 |
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| 11 | mov (28,sp),a1 |
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| 12 | #ifndef __OPTIMIZE_SIZE__ |
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| 13 | cmp 3,a1 |
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| 14 | bls .L44 |
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| 15 | mov a0,d3 |
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| 16 | btst 3,d3 |
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| 17 | bne .L44 |
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| 18 | mov a0,a2 |
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| 19 | mov 0,a3 |
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| 20 | clr d1 |
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| 21 | setlb |
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| 22 | mov a3,d0 |
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| 23 | asl 8,d0 |
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| 24 | mov d2,a3 |
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| 25 | add d0,a3 |
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| 26 | inc d1 |
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| 27 | cmp 3,d1 |
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| 28 | lls |
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| 29 | cmp 3,a1 |
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| 30 | bls .L48 |
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| 31 | .L33: |
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| 32 | mov (a2),d0 |
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| 33 | mov a3,d3 |
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| 34 | xor d3,d0 |
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| 35 | mov d0,d1 |
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| 36 | not d1 |
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| 37 | add -16843009,d0 |
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| 38 | and d1,d0 |
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| 39 | btst -2139062144,d0 |
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| 40 | beq .L34 |
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| 41 | mov a2,a0 |
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| 42 | clr d1 |
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| 43 | setlb |
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| 44 | movbu (a0),d0 |
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| 45 | cmp d2,d0 |
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| 46 | beq .Lepilogue |
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| 47 | inc a0 |
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| 48 | inc d1 |
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| 49 | cmp 3,d1 |
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| 50 | lls |
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| 51 | .L34: |
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| 52 | add -4,a1 |
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| 53 | inc4 a2 |
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| 54 | cmp 3,a1 |
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| 55 | bhi .L33 |
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| 56 | .L48: |
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| 57 | mov a2,a0 |
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| 58 | .L44: |
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| 59 | #endif |
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| 60 | cmp 0,a1 |
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| 61 | beq .L50 |
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| 62 | setlb |
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| 63 | movbu (a0),d0 |
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| 64 | cmp d2,d0 |
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| 65 | beq .Lepilogue |
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| 66 | inc a0 |
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| 67 | sub 1,a1 |
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| 68 | lne |
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| 69 | .L50: |
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| 70 | mov 0,a0 |
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| 71 | .Lepilogue: |
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| 72 | ret [d2,d3,a2,a3],16 |
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| 73 | .Lend_of_memchr: |
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| 74 | .size _memchr, .Lend_of_memchr - _memchr |
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| 75 | |
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| 76 | .section .debug_frame,"",@progbits |
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| 77 | .Lstart_of_debug_frame: |
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| 78 | # Common Information Entry (CIE) |
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| 79 | .4byte .Lend_of_CIE - .Lstart_of_CIE # CIE Length |
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| 80 | .Lstart_of_CIE: |
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| 81 | .4byte 0xffffffff # CIE Identifier Tag |
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| 82 | .byte 0x1 # CIE Version |
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| 83 | .ascii "\0" # CIE Augmentation |
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| 84 | .uleb128 0x1 # CIE Code Alignment Factor |
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| 85 | .sleb128 -4 # CIE Data Alignment Factor |
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| 86 | .byte 0x32 # CIE RA Column |
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| 87 | .byte 0xc # DW_CFA_def_cfa |
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| 88 | .uleb128 0x9 |
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| 89 | .uleb128 0x0 |
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| 90 | .byte 0xb2 # DW_CFA_offset, column 0x32 |
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| 91 | .uleb128 0x0 |
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| 92 | .align 2 |
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| 93 | .Lend_of_CIE: |
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| 94 | |
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| 95 | # Frame Description Entry (FDE) |
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| 96 | .4byte .Lend_of_FDE - .Lstart_of_FDE # FDE Length |
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| 97 | .Lstart_of_FDE: |
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| 98 | .4byte .Lstart_of_debug_frame # FDE CIE offset |
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| 99 | .4byte _memchr # FDE initial location |
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| 100 | .4byte .Lend_of_memchr - _memchr # FDE address range |
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| 101 | .byte 0x4 # DW_CFA_advance_loc4 |
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| 102 | .4byte .Lend_of_prologue - _memchr |
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| 103 | .byte 0xe # DW_CFA_def_cfa_offset |
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| 104 | .uleb128 0x4 |
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| 105 | .byte 0x87 # DW_CFA_offset, column 0x7 |
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| 106 | .uleb128 0x1 |
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| 107 | .align 2 |
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| 108 | .Lend_of_FDE: |
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