Fixed line endings
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File diff suppressed because it is too large
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File diff suppressed because it is too large
Load Diff
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Load Diff
5418
src/console.pas
5418
src/console.pas
File diff suppressed because it is too large
Load Diff
@ -1,89 +1,89 @@
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// Copyright 2021 Kieron Morris
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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.
|
||||
// You may obtain a copy of the License at
|
||||
//
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||||
// http://www.apache.org/licenses/LICENSE-2.0
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||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
{
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Include->Multiboot - Multiboot Structures & Access.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit multiboot;
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interface
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const
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KERNEL_STACKSIZE = $4000;
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MULTIBOOT_BOOTLOADER_MAGIC = $2BADB002;
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type
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Pelf_section_header_table_t = ^elf_section_header_table_t;
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elf_section_header_table_t = packed record
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num: uint32;
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size: uint32;
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addr: uint32;
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shndx: uint32;
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end;
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Pmultiboot_info_t = ^multiboot_info_t;
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multiboot_info_t = packed record
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flags: uint32;
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mem_lower: uint32;
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mem_upper: uint32;
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boot_device: uint32;
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cmdline: uint32;
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mods_count: uint32;
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mods_addr: uint32;
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elf_sec: elf_section_header_table_t;
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mmap_length: uint32;
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mmap_addr: uint32;
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drives_legnth : uint32;
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drives_addr: uint32;
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config_table : uint32;
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boot_loader_name : uint32;
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apm_table: uint32;
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vbe_control_info : uint32;
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vbe_mode_info : uint32;
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vbe_mode : uint16;
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vbe_interface_seg : uint16;
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vbe_interface_off : uint16;
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vbe_interface_len : uint16;
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||||
framebuffer_addr : uint64;
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||||
framebuffer_pitch : uint32;
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framebuffer_width : uint32;
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framebuffer_height: uint32;
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framebuffer_bpp : uint8;
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end;
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Pmodule_t = ^module_t;
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module_t = packed record
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mod_start: uint32;
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mod_end: uint32;
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name: uint32;
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reserved: uint32;
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end;
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Pmemory_map_t = ^memory_map_t;
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memory_map_t = packed record
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size: uint32;
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base_addr : uint64;
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length : uint64;
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mtype: uint32;
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end;
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var
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multibootinfo : Pmultiboot_info_t = nil;
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multibootmagic : uint32;
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implementation
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end.
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// Copyright 2021 Kieron Morris
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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.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
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||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
{
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Include->Multiboot - Multiboot Structures & Access.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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}
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unit multiboot;
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interface
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const
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KERNEL_STACKSIZE = $4000;
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MULTIBOOT_BOOTLOADER_MAGIC = $2BADB002;
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type
|
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Pelf_section_header_table_t = ^elf_section_header_table_t;
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elf_section_header_table_t = packed record
|
||||
num: uint32;
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size: uint32;
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addr: uint32;
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shndx: uint32;
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end;
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Pmultiboot_info_t = ^multiboot_info_t;
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multiboot_info_t = packed record
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flags: uint32;
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mem_lower: uint32;
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mem_upper: uint32;
|
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boot_device: uint32;
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cmdline: uint32;
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mods_count: uint32;
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mods_addr: uint32;
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elf_sec: elf_section_header_table_t;
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mmap_length: uint32;
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mmap_addr: uint32;
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drives_legnth : uint32;
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drives_addr: uint32;
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config_table : uint32;
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boot_loader_name : uint32;
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apm_table: uint32;
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vbe_control_info : uint32;
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vbe_mode_info : uint32;
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vbe_mode : uint16;
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vbe_interface_seg : uint16;
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vbe_interface_off : uint16;
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vbe_interface_len : uint16;
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framebuffer_addr : uint64;
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framebuffer_pitch : uint32;
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framebuffer_width : uint32;
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framebuffer_height: uint32;
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framebuffer_bpp : uint8;
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end;
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Pmodule_t = ^module_t;
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module_t = packed record
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mod_start: uint32;
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mod_end: uint32;
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name: uint32;
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reserved: uint32;
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end;
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Pmemory_map_t = ^memory_map_t;
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memory_map_t = packed record
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size: uint32;
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base_addr : uint64;
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length : uint64;
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mtype: uint32;
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end;
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var
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multibootinfo : Pmultiboot_info_t = nil;
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multibootmagic : uint32;
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implementation
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end.
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540
src/kernel.pas
540
src/kernel.pas
@ -1,270 +1,270 @@
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// Copyright 2021 Kieron Morris & Aaron Hance
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//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
{
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Kernel Main - Main Kernel Entry Point.
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@author(Kieron Morris <kjm@kieronmorris.me>)
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@author(Aaron Hance <ah@aaronhance.me>)
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}
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unit kernel;
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interface
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uses
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multiboot, bios_data_area,
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util,
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gdt, idt, isr, irq, tss,
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TMR_0_ISR,
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console,
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keyboard, mouse,
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vmemorymanager, pmemorymanager, lmemorymanager,
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tracer,
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drivermanagement,
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scheduler,
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progmanager,
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PCI,
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strings,
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USB,
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testdriver,
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E1000,
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IDE,
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storagemanagement,
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lists,
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net,
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fat32,
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isrmanager,
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faults,
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fonts,
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RTC,
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serial,
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cpu,
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md5,
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base64,
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rand,
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terminal,
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hashmap, vfs;
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procedure kmain(mbinfo: Pmultiboot_info_t; mbmagic: uint32); stdcall;
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implementation
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procedure terminal_command_meminfo(params : PParamList);
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begin
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push_trace('kernel.terminal_command_meminfo');
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console.writestringWND('Lower Memory = ', getTerminalHWND);
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console.writeintWND(multibootinfo^.mem_lower, getTerminalHWND);
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console.writestringlnWND('KB', getTerminalHWND);
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console.writestringWND('Higher Memory = ', getTerminalHWND);
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console.writeintWND(multibootinfo^.mem_upper, getTerminalHWND);
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console.writestringlnWND('KB', getTerminalHWND);
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console.writestringWND('Total Memory = ', getTerminalHWND);
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console.writeintWND(((multibootinfo^.mem_upper + 1000) div 1024) + 1, getTerminalHWND);
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console.writestringlnWND('MB', getTerminalHWND);
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pop_trace;
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end;
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procedure terminal_command_bsod(params : PParamList);
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begin
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push_trace('kernel.terminal_command_bsod');
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if ParamCount(params) > 1 then begin
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bsod(getparam(0, params), getparam(1, params));
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end else begin
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console.writestringlnWND('Invalid number of params.', getTerminalHWND);
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console.writestringlnWND('Usage: bsod <error> <info>', getTerminalHWND);
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end;
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pop_trace;
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end;
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procedure myUserLandFunction;
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var
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i : uint32;
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begin
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i:=0;
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while true do begin
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i:=i+1;
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asm
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MOV EAX, i
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end;
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end;
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end;
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procedure kmain(mbinfo: Pmultiboot_info_t; mbmagic: uint32); stdcall; [public, alias: 'kmain'];
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var
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c : uint8;
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z : uint32;
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dds : uint32;
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pint : puint32;
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pint2 : puint32;
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keyboard_layout : array [0..1] of TKeyInfo;
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i : uint32;
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cEIP : uint32;
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temp : uint32;
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atmp : puint32;
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test : puint8;
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fb : puint16;
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l : PLinkedListBase;
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ulf : pointer;
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HM : PHashMap;
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begin
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{ Serial Init }
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serial.init();
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{ Store Multiboot info }
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multibootinfo:= mbinfo;
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multibootmagic:= mbmagic;
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{ Ensure tracer is frozen }
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tracer.freeze();
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{ Terminal Init }
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terminal.init();
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terminal.registerCommand('MEMINFO', @terminal_command_meminfo, 'Print Simple Memory Information.');
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terminal.registerCommand('BSOD', @terminal_command_bsod, 'Force a Panic Screen.');
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console.writestringln('Booting Asuro...');
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console.writestringln('Checking for Multiboot Compliance');
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{ Check for Multiboot }
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if (multibootmagic <> MULTIBOOT_BOOTLOADER_MAGIC) then begin
|
||||
console.setdefaultattribute(console.combinecolors($F800, $0000));
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console.outputln('KERNEL', 'Multiboot Compliant Boot-Loader Needed!');
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console.outputln('KERNEL', 'HALTING.');
|
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BSOD('Multiboot Error', 'Multiboot Compliant Boot-Loader Needed!');
|
||||
util.halt_and_catch_fire;
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end;
|
||||
|
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{ GDT Init }
|
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gdt.init();
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asm
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MOV dds, CS
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end;
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if dds = $08 then begin
|
||||
console.outputln('KERNEL', 'GDT: LOAD SUCCESS.');
|
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end else begin
|
||||
console.outputln('KERNEL', 'GDT: LOAD FAIL.');
|
||||
console.outputln('KERNEL', 'HALTING.');
|
||||
BSOD('GDT', 'Failed to load the GDT correctly.');
|
||||
end;
|
||||
|
||||
console.output('MULTIBOOT', 'Assigned Framebuffer: ');
|
||||
console.writehexln(multibootinfo^.framebuffer_addr);
|
||||
console.output('MULTIBOOT', 'Assigned Framebuffer Metrics: ');
|
||||
console.writeint(multibootinfo^.framebuffer_width);
|
||||
console.writestring('x');
|
||||
console.writeint(multibootinfo^.framebuffer_height);
|
||||
console.writestring('x');
|
||||
console.writeintln(multibootinfo^.framebuffer_bpp);
|
||||
|
||||
{ Memory/CPU Init }
|
||||
idt.init();
|
||||
irq.init();
|
||||
isrmanager.init();
|
||||
faults.init();
|
||||
RTC.init();
|
||||
|
||||
pmemorymanager.init();
|
||||
vmemorymanager.init();
|
||||
lmemorymanager.init();
|
||||
tss.init();
|
||||
scheduler.init();
|
||||
|
||||
{ Console Init }
|
||||
console.init();
|
||||
|
||||
{ CPUID }
|
||||
console.outputln('CPU', 'Init begin');
|
||||
cpu.init();
|
||||
console.outputln('CPU', 'Init end');
|
||||
|
||||
{ Call Tracer }
|
||||
tracer.init();
|
||||
|
||||
{ VFS Init }
|
||||
vfs.init();
|
||||
|
||||
{ Management Interfaces }
|
||||
tracer.push_trace('kmain.DRVMGMT');
|
||||
drivermanagement.init();
|
||||
tracer.push_trace('kmain.STRMGMT');
|
||||
storagemanagement.init();
|
||||
|
||||
{ Hook Timer for Ticks }
|
||||
tracer.push_trace('kmain.TMR');
|
||||
STI;
|
||||
TMR_0_ISR.hook(uint32(@bios_data_area.tick_update));
|
||||
|
||||
{ Filsystems }
|
||||
fat32.init();
|
||||
|
||||
{ Device Drivers }
|
||||
tracer.push_trace('kmain.DEVDRV');
|
||||
console.outputln('KERNEL', 'DEVICE DRIVERS: INIT BEGIN.');
|
||||
keyboard.init(keyboard_layout);
|
||||
mouse.init();
|
||||
testdriver.init();
|
||||
E1000.init();
|
||||
IDE.init();
|
||||
console.outputln('KERNEL', 'DEVICE DRIVERS: INIT END.');
|
||||
|
||||
{ Bus Drivers }
|
||||
tracer.push_trace('kmain.BUSDRV');
|
||||
console.outputln('KERNEL', 'BUS DRIVERS: INIT BEGIN.');
|
||||
USB.init();
|
||||
pci.init();
|
||||
console.outputln('KERNEL', 'BUS DRIVERS: INIT END.');
|
||||
|
||||
{ Network Stack }
|
||||
tracer.push_trace('kmain.NETDRV');
|
||||
net.init;
|
||||
|
||||
tracer.push_trace('kmain.VMINIT');
|
||||
//vm.init();
|
||||
|
||||
{ Init Progs }
|
||||
progmanager.init();
|
||||
|
||||
{ Init Splash }
|
||||
//tracer.push_trace('kmain.SPLASHINIT');
|
||||
//splash.init();
|
||||
|
||||
{ End of Boot }
|
||||
tracer.push_trace('kmain.EOB');
|
||||
|
||||
console.writestringln('');
|
||||
console.setdefaultattribute(console.combinecolors($17E0, $0000));
|
||||
console.writestringln('Asuro Booted Correctly!');
|
||||
console.setdefaultattribute(console.combinecolors($FFFF, $0000));
|
||||
writestringln(' ');
|
||||
|
||||
tracer.push_trace('kmain.END');
|
||||
rand.srand((getDateTime.Seconds SHL 24) OR (getDateTime.Minutes SHL 16) OR (getDateTime.Hours SHL 8) OR (getDateTime.Day));
|
||||
|
||||
tracer.push_trace('kmain.TICK');
|
||||
|
||||
while true do begin
|
||||
tracer.push_trace('kmain.RedrawWindows');
|
||||
console.redrawWindows;
|
||||
end;
|
||||
|
||||
end;
|
||||
|
||||
end.
|
||||
// Copyright 2021 Kieron Morris & Aaron Hance
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
{
|
||||
Kernel Main - Main Kernel Entry Point.
|
||||
|
||||
@author(Kieron Morris <kjm@kieronmorris.me>)
|
||||
@author(Aaron Hance <ah@aaronhance.me>)
|
||||
}
|
||||
unit kernel;
|
||||
|
||||
interface
|
||||
|
||||
uses
|
||||
multiboot, bios_data_area,
|
||||
util,
|
||||
gdt, idt, isr, irq, tss,
|
||||
TMR_0_ISR,
|
||||
console,
|
||||
keyboard, mouse,
|
||||
vmemorymanager, pmemorymanager, lmemorymanager,
|
||||
tracer,
|
||||
drivermanagement,
|
||||
scheduler,
|
||||
progmanager,
|
||||
PCI,
|
||||
strings,
|
||||
USB,
|
||||
testdriver,
|
||||
E1000,
|
||||
IDE,
|
||||
storagemanagement,
|
||||
lists,
|
||||
net,
|
||||
fat32,
|
||||
isrmanager,
|
||||
faults,
|
||||
fonts,
|
||||
RTC,
|
||||
serial,
|
||||
cpu,
|
||||
md5,
|
||||
base64,
|
||||
rand,
|
||||
terminal,
|
||||
hashmap, vfs;
|
||||
|
||||
procedure kmain(mbinfo: Pmultiboot_info_t; mbmagic: uint32); stdcall;
|
||||
|
||||
implementation
|
||||
|
||||
procedure terminal_command_meminfo(params : PParamList);
|
||||
begin
|
||||
push_trace('kernel.terminal_command_meminfo');
|
||||
|
||||
console.writestringWND('Lower Memory = ', getTerminalHWND);
|
||||
console.writeintWND(multibootinfo^.mem_lower, getTerminalHWND);
|
||||
console.writestringlnWND('KB', getTerminalHWND);
|
||||
console.writestringWND('Higher Memory = ', getTerminalHWND);
|
||||
console.writeintWND(multibootinfo^.mem_upper, getTerminalHWND);
|
||||
console.writestringlnWND('KB', getTerminalHWND);
|
||||
console.writestringWND('Total Memory = ', getTerminalHWND);
|
||||
console.writeintWND(((multibootinfo^.mem_upper + 1000) div 1024) + 1, getTerminalHWND);
|
||||
console.writestringlnWND('MB', getTerminalHWND);
|
||||
|
||||
pop_trace;
|
||||
end;
|
||||
|
||||
procedure terminal_command_bsod(params : PParamList);
|
||||
begin
|
||||
push_trace('kernel.terminal_command_bsod');
|
||||
|
||||
if ParamCount(params) > 1 then begin
|
||||
bsod(getparam(0, params), getparam(1, params));
|
||||
end else begin
|
||||
console.writestringlnWND('Invalid number of params.', getTerminalHWND);
|
||||
console.writestringlnWND('Usage: bsod <error> <info>', getTerminalHWND);
|
||||
end;
|
||||
|
||||
pop_trace;
|
||||
end;
|
||||
|
||||
procedure myUserLandFunction;
|
||||
var
|
||||
i : uint32;
|
||||
|
||||
begin
|
||||
i:=0;
|
||||
while true do begin
|
||||
i:=i+1;
|
||||
asm
|
||||
MOV EAX, i
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure kmain(mbinfo: Pmultiboot_info_t; mbmagic: uint32); stdcall; [public, alias: 'kmain'];
|
||||
var
|
||||
c : uint8;
|
||||
z : uint32;
|
||||
dds : uint32;
|
||||
pint : puint32;
|
||||
pint2 : puint32;
|
||||
keyboard_layout : array [0..1] of TKeyInfo;
|
||||
i : uint32;
|
||||
cEIP : uint32;
|
||||
temp : uint32;
|
||||
atmp : puint32;
|
||||
test : puint8;
|
||||
fb : puint16;
|
||||
l : PLinkedListBase;
|
||||
ulf : pointer;
|
||||
|
||||
HM : PHashMap;
|
||||
|
||||
begin
|
||||
{ Serial Init }
|
||||
serial.init();
|
||||
|
||||
{ Store Multiboot info }
|
||||
multibootinfo:= mbinfo;
|
||||
multibootmagic:= mbmagic;
|
||||
|
||||
{ Ensure tracer is frozen }
|
||||
tracer.freeze();
|
||||
|
||||
{ Terminal Init }
|
||||
terminal.init();
|
||||
terminal.registerCommand('MEMINFO', @terminal_command_meminfo, 'Print Simple Memory Information.');
|
||||
terminal.registerCommand('BSOD', @terminal_command_bsod, 'Force a Panic Screen.');
|
||||
|
||||
console.writestringln('Booting Asuro...');
|
||||
|
||||
console.writestringln('Checking for Multiboot Compliance');
|
||||
{ Check for Multiboot }
|
||||
if (multibootmagic <> MULTIBOOT_BOOTLOADER_MAGIC) then begin
|
||||
console.setdefaultattribute(console.combinecolors($F800, $0000));
|
||||
console.outputln('KERNEL', 'Multiboot Compliant Boot-Loader Needed!');
|
||||
console.outputln('KERNEL', 'HALTING.');
|
||||
BSOD('Multiboot Error', 'Multiboot Compliant Boot-Loader Needed!');
|
||||
util.halt_and_catch_fire;
|
||||
end;
|
||||
|
||||
{ GDT Init }
|
||||
gdt.init();
|
||||
asm
|
||||
MOV dds, CS
|
||||
end;
|
||||
if dds = $08 then begin
|
||||
console.outputln('KERNEL', 'GDT: LOAD SUCCESS.');
|
||||
end else begin
|
||||
console.outputln('KERNEL', 'GDT: LOAD FAIL.');
|
||||
console.outputln('KERNEL', 'HALTING.');
|
||||
BSOD('GDT', 'Failed to load the GDT correctly.');
|
||||
end;
|
||||
|
||||
console.output('MULTIBOOT', 'Assigned Framebuffer: ');
|
||||
console.writehexln(multibootinfo^.framebuffer_addr);
|
||||
console.output('MULTIBOOT', 'Assigned Framebuffer Metrics: ');
|
||||
console.writeint(multibootinfo^.framebuffer_width);
|
||||
console.writestring('x');
|
||||
console.writeint(multibootinfo^.framebuffer_height);
|
||||
console.writestring('x');
|
||||
console.writeintln(multibootinfo^.framebuffer_bpp);
|
||||
|
||||
{ Memory/CPU Init }
|
||||
idt.init();
|
||||
irq.init();
|
||||
isrmanager.init();
|
||||
faults.init();
|
||||
RTC.init();
|
||||
|
||||
pmemorymanager.init();
|
||||
vmemorymanager.init();
|
||||
lmemorymanager.init();
|
||||
tss.init();
|
||||
scheduler.init();
|
||||
|
||||
{ Console Init }
|
||||
console.init();
|
||||
|
||||
{ CPUID }
|
||||
console.outputln('CPU', 'Init begin');
|
||||
cpu.init();
|
||||
console.outputln('CPU', 'Init end');
|
||||
|
||||
{ Call Tracer }
|
||||
tracer.init();
|
||||
|
||||
{ VFS Init }
|
||||
vfs.init();
|
||||
|
||||
{ Management Interfaces }
|
||||
tracer.push_trace('kmain.DRVMGMT');
|
||||
drivermanagement.init();
|
||||
tracer.push_trace('kmain.STRMGMT');
|
||||
storagemanagement.init();
|
||||
|
||||
{ Hook Timer for Ticks }
|
||||
tracer.push_trace('kmain.TMR');
|
||||
STI;
|
||||
TMR_0_ISR.hook(uint32(@bios_data_area.tick_update));
|
||||
|
||||
{ Filsystems }
|
||||
fat32.init();
|
||||
|
||||
{ Device Drivers }
|
||||
tracer.push_trace('kmain.DEVDRV');
|
||||
console.outputln('KERNEL', 'DEVICE DRIVERS: INIT BEGIN.');
|
||||
keyboard.init(keyboard_layout);
|
||||
mouse.init();
|
||||
testdriver.init();
|
||||
E1000.init();
|
||||
IDE.init();
|
||||
console.outputln('KERNEL', 'DEVICE DRIVERS: INIT END.');
|
||||
|
||||
{ Bus Drivers }
|
||||
tracer.push_trace('kmain.BUSDRV');
|
||||
console.outputln('KERNEL', 'BUS DRIVERS: INIT BEGIN.');
|
||||
USB.init();
|
||||
pci.init();
|
||||
console.outputln('KERNEL', 'BUS DRIVERS: INIT END.');
|
||||
|
||||
{ Network Stack }
|
||||
tracer.push_trace('kmain.NETDRV');
|
||||
net.init;
|
||||
|
||||
tracer.push_trace('kmain.VMINIT');
|
||||
//vm.init();
|
||||
|
||||
{ Init Progs }
|
||||
progmanager.init();
|
||||
|
||||
{ Init Splash }
|
||||
//tracer.push_trace('kmain.SPLASHINIT');
|
||||
//splash.init();
|
||||
|
||||
{ End of Boot }
|
||||
tracer.push_trace('kmain.EOB');
|
||||
|
||||
console.writestringln('');
|
||||
console.setdefaultattribute(console.combinecolors($17E0, $0000));
|
||||
console.writestringln('Asuro Booted Correctly!');
|
||||
console.setdefaultattribute(console.combinecolors($FFFF, $0000));
|
||||
writestringln(' ');
|
||||
|
||||
tracer.push_trace('kmain.END');
|
||||
rand.srand((getDateTime.Seconds SHL 24) OR (getDateTime.Minutes SHL 16) OR (getDateTime.Hours SHL 8) OR (getDateTime.Day));
|
||||
|
||||
tracer.push_trace('kmain.TICK');
|
||||
|
||||
while true do begin
|
||||
tracer.push_trace('kmain.RedrawWindows');
|
||||
console.redrawWindows;
|
||||
end;
|
||||
|
||||
end;
|
||||
|
||||
end.
|
||||
|
||||
@ -1,125 +1,125 @@
|
||||
; Copyright 2021 Kieron Morris
|
||||
;
|
||||
; Licensed under the Apache License, Version 2.0 (the "License");
|
||||
; you may not use this file except in compliance with the License.
|
||||
; You may obtain a copy of the License at
|
||||
;
|
||||
; http://www.apache.org/licenses/LICENSE-2.0
|
||||
;
|
||||
; Unless required by applicable law or agreed to in writing, software
|
||||
; distributed under the License is distributed on an "AS IS" BASIS,
|
||||
; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
; See the License for the specific language governing permissions and
|
||||
; limitations under the License.
|
||||
|
||||
;
|
||||
; Kernel stub
|
||||
;
|
||||
|
||||
;
|
||||
; We are in 32bits protected mode
|
||||
;
|
||||
[bits 32]
|
||||
|
||||
;
|
||||
; Export entrypoint
|
||||
;
|
||||
global _loader
|
||||
|
||||
;
|
||||
; Import kernel entrypoint
|
||||
;
|
||||
extern kmain
|
||||
|
||||
;
|
||||
; Posible multiboot header flags
|
||||
;
|
||||
MULTIBOOT_MODULE_ALIGN equ 1<<0
|
||||
MULTIBOOT_MEMORY_MAP equ 1<<1
|
||||
MULTIBOOT_GRAPHICS_FIELDS equ 1<<2
|
||||
MULTIBOOT_ADDRESS_FIELDS equ 1<<16
|
||||
|
||||
;
|
||||
; Multiboot header defines
|
||||
;
|
||||
MULTIBOOT_HEADER_MAGIC equ 0x1BADB002
|
||||
MULTIBOOT_HEADER_FLAGS equ MULTIBOOT_MODULE_ALIGN | MULTIBOOT_MEMORY_MAP | MULTIBOOT_GRAPHICS_FIELDS
|
||||
MULTIBOOT_HEADER_CHECKSUM equ -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)
|
||||
|
||||
;
|
||||
; Kernel stack size
|
||||
;
|
||||
KERNEL_STACKSIZE equ 0x4000
|
||||
KERNEL_VIRTUAL_BASE equ 0xC0000000
|
||||
KERNEL_PAGE_NUMBER equ (KERNEL_VIRTUAL_BASE >> 22)
|
||||
|
||||
section .data
|
||||
align 0x1000
|
||||
_PageDirectory equ BootPageDirectory
|
||||
global _PageDirectory
|
||||
BootPageDirectory:
|
||||
dd 0x00000083
|
||||
times (KERNEL_PAGE_NUMBER - 1) dd 0
|
||||
dd 0x00000083
|
||||
times (1024 - KERNEL_PAGE_NUMBER - 1) dd 0
|
||||
|
||||
section .text
|
||||
;
|
||||
; Multiboot header
|
||||
;
|
||||
align 4
|
||||
dd MULTIBOOT_HEADER_MAGIC
|
||||
dd MULTIBOOT_HEADER_FLAGS
|
||||
dd MULTIBOOT_HEADER_CHECKSUM
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd 1280
|
||||
dd 1024
|
||||
dd 16
|
||||
|
||||
;
|
||||
; Entrypoint
|
||||
;
|
||||
loader equ _loader
|
||||
;loader equ (_loader - 0xC0000000)
|
||||
global loader
|
||||
|
||||
_loader:
|
||||
mov ecx, (BootPageDirectory - KERNEL_VIRTUAL_BASE)
|
||||
mov cr3, ecx
|
||||
|
||||
mov ecx, cr4
|
||||
or ecx, 0x00000010
|
||||
mov cr4, ecx
|
||||
|
||||
mov ecx, cr0
|
||||
or ecx, 0x80000000
|
||||
mov cr0, ecx
|
||||
|
||||
lea ecx, [kstart]
|
||||
jmp ecx
|
||||
|
||||
kstart:
|
||||
mov dword [BootPageDirectory], 0
|
||||
invlpg [0]
|
||||
mov esp, KERNEL_STACK+KERNEL_STACKSIZE ;Create kernel stack
|
||||
push eax ;Multiboot magic number
|
||||
add ebx, KERNEL_VIRTUAL_BASE
|
||||
push ebx ;Multiboot info
|
||||
call kmain ;Call kernel entrypoint
|
||||
cli ;Clear interrupts
|
||||
hlt ;Halt machine
|
||||
|
||||
section .bss
|
||||
|
||||
;
|
||||
; Kernel stack location
|
||||
;
|
||||
align 32
|
||||
global KERNEL_STACK
|
||||
KERNEL_STACK:
|
||||
resb KERNEL_STACKSIZE
|
||||
; Copyright 2021 Kieron Morris
|
||||
;
|
||||
; Licensed under the Apache License, Version 2.0 (the "License");
|
||||
; you may not use this file except in compliance with the License.
|
||||
; You may obtain a copy of the License at
|
||||
;
|
||||
; http://www.apache.org/licenses/LICENSE-2.0
|
||||
;
|
||||
; Unless required by applicable law or agreed to in writing, software
|
||||
; distributed under the License is distributed on an "AS IS" BASIS,
|
||||
; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
; See the License for the specific language governing permissions and
|
||||
; limitations under the License.
|
||||
|
||||
;
|
||||
; Kernel stub
|
||||
;
|
||||
|
||||
;
|
||||
; We are in 32bits protected mode
|
||||
;
|
||||
[bits 32]
|
||||
|
||||
;
|
||||
; Export entrypoint
|
||||
;
|
||||
global _loader
|
||||
|
||||
;
|
||||
; Import kernel entrypoint
|
||||
;
|
||||
extern kmain
|
||||
|
||||
;
|
||||
; Posible multiboot header flags
|
||||
;
|
||||
MULTIBOOT_MODULE_ALIGN equ 1<<0
|
||||
MULTIBOOT_MEMORY_MAP equ 1<<1
|
||||
MULTIBOOT_GRAPHICS_FIELDS equ 1<<2
|
||||
MULTIBOOT_ADDRESS_FIELDS equ 1<<16
|
||||
|
||||
;
|
||||
; Multiboot header defines
|
||||
;
|
||||
MULTIBOOT_HEADER_MAGIC equ 0x1BADB002
|
||||
MULTIBOOT_HEADER_FLAGS equ MULTIBOOT_MODULE_ALIGN | MULTIBOOT_MEMORY_MAP | MULTIBOOT_GRAPHICS_FIELDS
|
||||
MULTIBOOT_HEADER_CHECKSUM equ -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS)
|
||||
|
||||
;
|
||||
; Kernel stack size
|
||||
;
|
||||
KERNEL_STACKSIZE equ 0x4000
|
||||
KERNEL_VIRTUAL_BASE equ 0xC0000000
|
||||
KERNEL_PAGE_NUMBER equ (KERNEL_VIRTUAL_BASE >> 22)
|
||||
|
||||
section .data
|
||||
align 0x1000
|
||||
_PageDirectory equ BootPageDirectory
|
||||
global _PageDirectory
|
||||
BootPageDirectory:
|
||||
dd 0x00000083
|
||||
times (KERNEL_PAGE_NUMBER - 1) dd 0
|
||||
dd 0x00000083
|
||||
times (1024 - KERNEL_PAGE_NUMBER - 1) dd 0
|
||||
|
||||
section .text
|
||||
;
|
||||
; Multiboot header
|
||||
;
|
||||
align 4
|
||||
dd MULTIBOOT_HEADER_MAGIC
|
||||
dd MULTIBOOT_HEADER_FLAGS
|
||||
dd MULTIBOOT_HEADER_CHECKSUM
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd 0
|
||||
dd 1280
|
||||
dd 1024
|
||||
dd 16
|
||||
|
||||
;
|
||||
; Entrypoint
|
||||
;
|
||||
loader equ _loader
|
||||
;loader equ (_loader - 0xC0000000)
|
||||
global loader
|
||||
|
||||
_loader:
|
||||
mov ecx, (BootPageDirectory - KERNEL_VIRTUAL_BASE)
|
||||
mov cr3, ecx
|
||||
|
||||
mov ecx, cr4
|
||||
or ecx, 0x00000010
|
||||
mov cr4, ecx
|
||||
|
||||
mov ecx, cr0
|
||||
or ecx, 0x80000000
|
||||
mov cr0, ecx
|
||||
|
||||
lea ecx, [kstart]
|
||||
jmp ecx
|
||||
|
||||
kstart:
|
||||
mov dword [BootPageDirectory], 0
|
||||
invlpg [0]
|
||||
mov esp, KERNEL_STACK+KERNEL_STACKSIZE ;Create kernel stack
|
||||
push eax ;Multiboot magic number
|
||||
add ebx, KERNEL_VIRTUAL_BASE
|
||||
push ebx ;Multiboot info
|
||||
call kmain ;Call kernel entrypoint
|
||||
cli ;Clear interrupts
|
||||
hlt ;Halt machine
|
||||
|
||||
section .bss
|
||||
|
||||
;
|
||||
; Kernel stack location
|
||||
;
|
||||
align 32
|
||||
global KERNEL_STACK
|
||||
KERNEL_STACK:
|
||||
resb KERNEL_STACKSIZE
|
||||
|
||||
Reference in New Issue
Block a user