X-Git-Url: http://git.dujemihanovic.xyz/projects?a=blobdiff_plain;f=kernel%2Fkernel.c;h=e1a0df5158f3b06bfd44e8693db172d431737dbf;hb=9fc180435dd7b476130851c48e1ac28009daa864;hp=87fbef954a0c4703db02024c1fcf2e1383b34659;hpb=c9f2bccb44c5437f1cae0862b2c84d3af47eade8;p=nameless-os.git

diff --git a/kernel/kernel.c b/kernel/kernel.c
index 87fbef9..e1a0df5 100644
--- a/kernel/kernel.c
+++ b/kernel/kernel.c
@@ -1,5 +1,31 @@
+#include <tty.h>
+#include <io.h>
+#include <irq/idt.h>
+#include <irq/i8259a.h>
+#include <stdint.h>
+
+extern void double_fault(struct abort_frame *frame);
+extern void keyb_handler(struct interrupt_frame *frame);
+struct idt_descriptor idt[256] __attribute__((aligned(0x10)));
+struct idtr idtr __attribute__((aligned(0x10)));
+
 void _start(void)
 {
-	char *video_memory = (char *) 0xB8000;
-	*video_memory = 'A';
+	screen_clear();
+	kprint("Welcome to Nameless OS!\nRunning revision: ", 0);
+	kprint(GIT_COMMIT, 0);
+	kprint("\n", 0);
+	kprint("Preparing IDT...\n", 0);
+	idt_set_descriptor(idt, 0x8, 0x8, (uint32_t) double_fault, IDT_TRAP_GATE, 0x0);
+	idt_set_descriptor(idt, 0x21, 0x8, (uint32_t) keyb_handler, IDT_INTERRUPT_GATE, 0x0);
+	kprint("IDT prepared, loading...\n", 0);
+	populate_idtr(&idtr, idt);
+	load_idt(idtr);
+	kprint("IDT loaded, enabling interrupts...\n", 0);
+	pic_init(0x20, 0x28);
+	pic_mask_all();
+	pic_unmask(1);
+	asm volatile ("sti");
+	kprint("All done\n", 0);
+	while(1);
 }