0b681a49c0
git-svn-id: http://svn.lfbs.rwth-aachen.de/svn/scc/trunk/MetalSVM@68 315a16e6-25f9-4109-90ae-ca3045a26c18
74 lines
1.5 KiB
NASM
74 lines
1.5 KiB
NASM
;
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; Copyright 2010 Stefan Lankes, Chair for Operating Systems,
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; RWTH Aachen University
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;
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; Licensed under the Apache License, Version 2.0 (the "License");
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; you may not use this file except in compliance with the License.
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; You may obtain a copy of the License at
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;
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; http://www.apache.org/licenses/LICENSE-2.0
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;
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; Unless required by applicable law or agreed to in writing, software
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; distributed under the License is 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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; See the License for the specific language governing permissions and
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; limitations under the License.
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;
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; This file is part of metalsvm.
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; This is the kernel's entry point. We could either call main here,
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; or we can use this to setup the stack or other nice stuff, like
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; perhaps setting up the GDT and segments. Please note that interrupts
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; are disabled at this point: More on interrupts later!
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[BITS 32]
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SECTION .code
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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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