mirror of
https://github.com/autc04/Retro68.git
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102 lines
1.7 KiB
ArmAsm
102 lines
1.7 KiB
ArmAsm
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.file "memcpy.S"
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.section .text
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.global _memcpy
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.type _memcpy,@function
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_memcpy:
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movm [d2,d3,a2,a3],(sp)
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.Lend_of_prologue:
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mov d0,d2
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mov d1,a0
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mov d2,a1
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mov (28,sp),d1
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#ifndef __OPTIMIZE_SIZE__
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mov a0,d0
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or d2,d0
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btst 3,d0
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bne .L37
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cmp 15,d1
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bls .L34
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setlb
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mov (a0),d0
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mov d0,(a1)
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inc4 a0
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inc4 a1
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mov (a0),d0
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mov d0,(a1)
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inc4 a0
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inc4 a1
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mov (a0),d0
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mov d0,(a1)
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inc4 a0
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inc4 a1
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mov (a0),d0
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mov d0,(a1)
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inc4 a0
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inc4 a1
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add -16,d1
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cmp 15,d1
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lhi
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.L34:
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cmp 3,d1
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bls .L37
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setlb
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mov (a0),d0
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mov d0,(a1)
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inc4 a0
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inc4 a1
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add -4,d1
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cmp 3,d1
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lhi
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.L37:
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#endif
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cmp 0,d1
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beq .L36
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setlb
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movbu (a0),d0
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movbu d0,(a1)
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inc a0
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inc a1
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sub 1,d1
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lne
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.L36:
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mov d2,a0
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.Lepilogue:
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ret [d2,d3,a2,a3],16
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.Lend_of_memcpy:
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.size _memcpy, .Lend_of_memcpy - _memcpy
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.section .debug_frame,"",@progbits
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.Lstart_of_debug_frame:
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# Common Information Entry (CIE)
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.4byte .Lend_of_CIE - .Lstart_of_CIE # CIE Length
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.Lstart_of_CIE:
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.4byte 0xffffffff # CIE Identifier Tag
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.byte 0x1 # CIE Version
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.ascii "\0" # CIE Augmentation
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.uleb128 0x1 # CIE Code Alignment Factor
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.sleb128 -4 # CIE Data Alignment Factor
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.byte 0x32 # CIE RA Column
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.byte 0xc # DW_CFA_def_cfa
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.uleb128 0x9
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.uleb128 0x0
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.byte 0xb2 # DW_CFA_offset, column 0x32
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.uleb128 0x0
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.align 2
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.Lend_of_CIE:
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# Frame Description Entry (FDE)
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.4byte .Lend_of_FDE - .Lstart_of_FDE # FDE Length
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.Lstart_of_FDE:
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.4byte .Lstart_of_debug_frame # FDE CIE offset
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.4byte _memcpy # FDE initial location
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.4byte .Lend_of_memcpy - _memcpy # FDE address range
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.byte 0x4 # DW_CFA_advance_loc4
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.4byte .Lend_of_prologue - _memcpy
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.byte 0xe # DW_CFA_def_cfa_offset
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.uleb128 0x4
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.byte 0x87 # DW_CFA_offset, column 0x7
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.uleb128 0x1
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.align 2
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.Lend_of_FDE:
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