70 lines
1.7 KiB
ArmAsm
70 lines
1.7 KiB
ArmAsm
/******************************************************************************
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COPYRIGHT(C) JONAS 'SORTIE' TERMANSEN 2011.
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This file is part of Sortix.
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Sortix is free software: you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation, either version 3 of the License, or (at your option) any later
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version.
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Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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details.
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You should have received a copy of the GNU General Public License along
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with Sortix. If not, see <http://www.gnu.org/licenses/>.
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boot.s
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Bootstraps the kernel and passes over control from the boot-loader to the
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kernel main function.
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******************************************************************************/
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.globl beginkernel, _beginkernel
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.globl start, _start
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.section .text
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.type _beginkernel, @function
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beginkernel:
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_beginkernel:
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movw $0x736, 0xB83E8
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movw $0x734, 0xB83EA
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movw $0x753, 0xB83EE
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movw $0x74F, 0xB83F0
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movw $0x752, 0xB83F2
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movw $0x754, 0xB83F4
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movw $0x749, 0xB83F6
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movw $0x758, 0xB83F8
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# Initialize the stack pointer.
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movq $stack, %rsp
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addq $65536, %rsp # 64 KiB, see kernel.cpp
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# Reset EFLAGS.
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# pushl $0
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# popf
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# Push the pointer to the Multiboot information structure.
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mov %rbx, %rsi
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# Push the magic value.
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mov %rax, %rdi
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call KernelInit
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.globl HaltKernel
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HaltKernel:
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cli
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hlt
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jmp HaltKernel
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.globl WaitForInterrupt
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.type WaitForInterrupt, @function # void WaitForInterrupt();
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WaitForInterrupt:
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hlt
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ret
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