#pragma once #include "prekernel/multiboot.h" #define CHECK_FLAG(flags, bit) ((flags) & (1 <<(bit))) #include "terminal/kterm.h" void CheckMBT ( multiboot_info_t* mbt ){ /* Set MBI to the addresss of the multiboot information structure*/ multiboot_info_t * mbi = (multiboot_info_t *) mbt; #ifdef __VERBOSE__ /* Print out the flags */ printf("flags = 0x%x\n", (unsigned) mbi->flags); #endif /* Are mem_* valid? */ if ( CHECK_FLAG(mbi->flags,0)){ // Do nothing } /* is boot device valid ? */ if (CHECK_FLAG (mbi->flags, 1)) { #ifdef __VERBOSE__ printf("boot_device = 0x0%x\n", (unsigned) mbi->boot_device); #endif } /* is the command line passed? */ if (CHECK_FLAG ( mbi->flags,2)) { #ifdef __VERBOSE__ printf("cmdline = %s\n", (char *) mbi->cmdline); #endif } /* Are mods_* valid? */ if(CHECK_FLAG ( mbi->flags, 3)){ multiboot_module_t *mod; uint32_t i; #ifdef __VERBOSE__ printf("mods count = %d, mods_addr = 0x%x\n", (int) mbi->mods_count, (int) mbi->mods_addr); for(i = 0, mod = (multiboot_module_t *) mbi->mods_addr; i < mbi->mods_count; i++ , mod++){ printf(" mod start = 0x%x, mod_end = 0x%x, cmdline = %s\n", (unsigned) mod->mod_start, (unsigned) mod->mod_end, (char*) mod->cmdline); } #endif } /* Bits 4 and 5 are mutually exclusive! */ if (CHECK_FLAG (mbi->flags, 4) && CHECK_FLAG(mbi->flags, 5)) { #ifdef __VERBOSE__ printf("Both bits 4 and 5 are set.\n"); #endif return; } /* Is the symbol table of a.out valid? */ if (CHECK_FLAG(mbi->flags, 4)){ multiboot_aout_symbol_table_t *multiboot_aout_sym = &(mbi->u.aout_sym); #ifdef __VERBOSE__ printf( "multiboot_aout_symbol_table: tabsize = 0x%0x, strsize = 0x%x, addr = 0x%x\n", (unsigned) multiboot_aout_sym->tabsize, (unsigned) multiboot_aout_sym->strsize, (unsigned) multiboot_aout_sym->addr); #endif } /* Is the section header table of ELF valid? */ if (CHECK_FLAG(mbi->flags, 5)){ multiboot_elf_section_header_table_t *multiboot_elf_sec = &(mbi->u.elf_sec); #ifdef __VERBOSE__ printf("multiboot_elf_sec: num = %u, size = 0x%x, addr = 0x%x, shnd = 0x%x\n", (unsigned) multiboot_elf_sec->num, (unsigned) multiboot_elf_sec->size, (unsigned) multiboot_elf_sec->addr, (unsigned) multiboot_elf_sec->shndx); #endif } /* Draw diagonal blue line */ if (CHECK_FLAG (mbt->flags, 12)){ #ifdef __VERBOSE__ printf("Can draw!\n"); #endif } }