64 lines
909 B
NASM
64 lines
909 B
NASM
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; Written by the Chair for Operating Systems, RWTH Aachen University
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;
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; NO Copyright (C) 2010-2011, Stefan Lankes
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; consider these trivial functions to be public domain.
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;
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; These functions are distributed on an "AS IS" BASIS,
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; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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;
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[BITS 32]
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SECTION .text
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global strcpy
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strcpy:
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push ebp
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mov ebp, esp
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push edi
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push esi
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mov esi, [ebp+12]
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mov edi, [ebp+8]
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L1:
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lodsb
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stosb
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test al, al
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jne L1
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mov eax, [ebp+8]
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pop esi
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pop edi
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pop ebp
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ret
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global strncpy
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strncpy:
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push ebp
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mov ebp, esp
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push edi
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push esi
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mov ecx, [ebp+16]
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mov esi, [ebp+12]
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mov edi, [ebp+8]
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L2:
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dec ecx
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js L3
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lodsb
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stosb
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test al, al
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jne L1
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rep
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stosb
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L3:
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mov eax, [ebp+8]
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pop esi
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pop edi
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pop ebp
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ret
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SECTION .note.GNU-stack noalloc noexec nowrite progbits
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