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sortix--sortix/sortix/x86/base.s
2013-12-17 14:30:23 +01:00

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ArmAsm

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along with
Sortix. If not, see <http://www.gnu.org/licenses/>.
x86/base.s
Bootstraps the kernel and passes over control from the boot-loader to the
kernel main function.
*******************************************************************************/
.section .text
.global beginkernel
.type beginkernel, @function
beginkernel:
# Initialize the stack pointer. The magic value is from kernel.cpp.
movl $stack, %esp
addl $65536, %esp # 64 KiB, see kernel.cpp
# Reset EFLAGS.
# pushl $0
# popf
# Push the pointer to the Multiboot information structure.
push %ebx
# Push the magic value.
push %eax
## Disable interrupts.
cli
call KernelInit
.size beginkernel, . - beginkernel
.global HaltKernel
HaltKernel:
cli
hlt
jmp HaltKernel
.size HaltKernel, . - HaltKernel
.global WaitForInterrupt
.type WaitForInterrupt, @function # void WaitForInterrupt();
WaitForInterrupt:
hlt
ret
.size WaitForInterrupt, . - WaitForInterrupt