lordtet
978fd36490
tasks, so I'm doing some housekeeping. gdt structure and related pointers go to gdt.structure. multiboot magic numbers go into multiboot.s. main code routine goes to start.s for bootstrapping C.
32 lines
897 B
C
32 lines
897 B
C
//Our own code, at this point...
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//#include <stddef.h>
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#include <stdint.h>
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#include "kio.h"
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#include "kttools.h"
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#include "kmultiboot.h"
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//finally, main.
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void kern_main(uint32_t multiboot_magic, mb_info_t* multiboot_info)
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{
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//Hello C! Let's get to work in cleaning up our environment a bit and creating some safety.
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//First interrupts.
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//wipe the screen
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vga_clear();
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//We're going to use this buffer as our 8char hex representation for reading mem
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vga_printf("Entry eax:%X\n", multiboot_magic);
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if(multiboot_magic != 0x2BADB002) {
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vga_println("Bootloader not multiboot1 compliant! Needed for mmap, etc. Can't work without it, kthxbye!");
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return;
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} else {
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vga_println("Multiboot detected! Continuing...");
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}
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vga_printf("MEM_LOWER:%X\n", multiboot_info->mem_lower);
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vga_printf("MEM_UPPER:%X\n", multiboot_info->mem_upper);
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}
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