Nigel
97606dbf71
As this project grows it becomes important to keep things properly organised. In this commit I've put some effort into making the kernel.cpp file more consise and thus improve its readability. Certain parts of the code have gotten their own definition file where before it was only a header file. - Moving the Supervisor Terminal into its own definition file. - Subtracting debugging messages with preprocessor ifdef's - Time and Date is now not just a header but has its own proper definition file - Banner is displayed when booting up - Terminal has a couple new commands Commmand Description =================|||||=================================================== DATE (was TIME) Displays the curren time, date and ticks VERSION Displays system version information MEMORY Displays memory information
91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
#pragma once
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#include "bootloader/multiboot.h"
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#define CHECK_FLAG(flags, bit) ((flags) & (1 <<(bit)))
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#include "tty/kterm.h"
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void CheckMBT ( multiboot_info_t* mbt ){
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/* Set MBI to the addresss of the multiboot information structure*/
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multiboot_info_t * mbi = (multiboot_info_t *) mbt;
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#ifdef __VERBOSE__
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/* Print out the flags */
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printf("flags = 0x%x\n", (unsigned) mbi->flags);
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#endif
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/* Are mem_* valid? */
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if ( CHECK_FLAG(mbi->flags,0)){
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// Do nothing
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}
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/* is boot device valid ? */
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if (CHECK_FLAG (mbi->flags, 1))
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{
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#ifdef __VERBOSE__
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printf("boot_device = 0x0%x\n", (unsigned) mbi->boot_device);
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#endif
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}
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/* is the command line passed? */
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if (CHECK_FLAG ( mbi->flags,2))
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{
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#ifdef __VERBOSE__
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printf("cmdline = %s\n", (char *) mbi->cmdline);
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#endif
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}
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/* Are mods_* valid? */
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if(CHECK_FLAG ( mbi->flags, 3)){
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multiboot_module_t *mod;
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uint32_t i;
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#ifdef __VERBOSE__
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printf("mods count = %d, mods_addr = 0x%x\n", (int) mbi->mods_count, (int) mbi->mods_addr);
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for(i = 0, mod = (multiboot_module_t *) mbi->mods_addr; i < mbi->mods_count; i++ , mod++){
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printf(" mod start = 0x%x, mod_end = 0x%x, cmdline = %s\n", (unsigned) mod->mod_start, (unsigned) mod->mod_end, (char*) mod->cmdline);
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}
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#endif
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}
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/* Bits 4 and 5 are mutually exclusive! */
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if (CHECK_FLAG (mbi->flags, 4) && CHECK_FLAG(mbi->flags, 5))
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{
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#ifdef __VERBOSE__
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printf("Both bits 4 and 5 are set.\n");
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#endif
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return;
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}
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/* Is the symbol table of a.out valid? */
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if (CHECK_FLAG(mbi->flags, 4)){
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multiboot_aout_symbol_table_t *multiboot_aout_sym = &(mbi->u.aout_sym);
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#ifdef __VERBOSE__
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printf( "multiboot_aout_symbol_table: tabsize = 0x%0x, strsize = 0x%x, addr = 0x%x\n",
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(unsigned) multiboot_aout_sym->tabsize,
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(unsigned) multiboot_aout_sym->strsize,
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(unsigned) multiboot_aout_sym->addr);
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#endif
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}
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/* Is the section header table of ELF valid? */
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if (CHECK_FLAG(mbi->flags, 5)){
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multiboot_elf_section_header_table_t *multiboot_elf_sec = &(mbi->u.elf_sec);
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#ifdef __VERBOSE__
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printf("multiboot_elf_sec: num = %u, size = 0x%x, addr = 0x%x, shnd = 0x%x\n",
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(unsigned) multiboot_elf_sec->num, (unsigned) multiboot_elf_sec->size,
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(unsigned) multiboot_elf_sec->addr, (unsigned) multiboot_elf_sec->shndx);
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#endif
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}
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/* Draw diagonal blue line */
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if (CHECK_FLAG (mbt->flags, 12)){
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#ifdef __VERBOSE__
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printf("Can draw!\n");
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#endif
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}
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} |