41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/* Copyright (C) 2016 Jeremiah Orians
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* This file is part of M2-Planet.
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*
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* M2-Planet is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* M2-Planet is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with M2-Planet. If not, see <http://www.gnu.org/licenses/>.
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*/
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// CONSTANT NULL 0
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void* malloc(int size)
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{
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asm("LOAD_RSP_IMMEDIATE_into_rax %8"
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"PUSH_RAX"
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"LOAD_IMMEDIATE_rax %12"
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"LOAD_IMMEDIATE_rdi %0"
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"SYSCALL"
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"POP_RBX"
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"ADD_rax_to_rbx"
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"COPY_rbx_to_rdi"
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"PUSH_RAX"
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"PUSH_RBX"
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"LOAD_IMMEDIATE_rax %12"
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"SYSCALL"
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"POP_RBX"
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"CMP"
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"POP_RAX"
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"JUMP_EQ %FUNCTION_malloc_Done"
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"LOAD_IMMEDIATE_rax %-1"
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":FUNCTION_malloc_Done");
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}
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