Ruben Ayrapetyan
94 lines
2.2 KiB
C
94 lines
2.2 KiB
C
/* Copyright 2014-2015 Samsung Electronics Co., Ltd.
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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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#ifndef ASM_X86_H
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#define ASM_X86_H
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/*
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* mov syscall_no -> %eax
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* mov arg1 -> %ebx
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* int $0x80
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* mov %eax -> ret
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*/
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#define SYSCALL_1 \
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push %edi; \
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push %esi; \
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push %ebx; \
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mov 0x10 (%esp), %eax; \
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mov 0x14 (%esp), %ebx; \
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int $0x80; \
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pop %ebx; \
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pop %esi; \
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pop %edi; \
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ret;
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/*
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* mov syscall_no -> %eax
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* mov arg1 -> %ebx
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* mov arg2 -> %ecx
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* int $0x80
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* mov %eax -> ret
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*/
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#define SYSCALL_2 \
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push %edi; \
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push %esi; \
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push %ebx; \
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mov 0x10 (%esp), %eax; \
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mov 0x14 (%esp), %ebx; \
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mov 0x18 (%esp), %ecx; \
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int $0x80; \
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pop %ebx; \
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pop %esi; \
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pop %edi; \
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ret;
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/*
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* mov syscall_no -> %eax
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* mov arg1 -> %ebx
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* mov arg2 -> %ecx
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* mov arg3 -> %edx
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* int $0x80
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* mov %eax -> ret
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*/
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#define SYSCALL_3 \
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push %edi; \
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push %esi; \
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push %ebx; \
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mov 0x10 (%esp), %eax; \
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mov 0x14 (%esp), %ebx; \
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mov 0x18 (%esp), %ecx; \
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mov 0x1c (%esp), %edx; \
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int $0x80; \
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pop %ebx; \
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pop %esi; \
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pop %edi; \
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ret;
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#define _START \
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mov %esp, %eax; \
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add $4, %eax; \
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push %eax; \
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mov 0x4 (%esp), %eax; \
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push %eax; \
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\
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call main; \
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\
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push %eax; \
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call exit; \
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1: \
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jmp 1b
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#endif /* !ASM_X86_H */
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