initial commit

currently with:
booted via multiboot 1
protected mode to long mode boostrap code
vga used for outputting
gdt and idt set up
identity paging for the whole memory reported by multiboot
pic and ps/2 set up
acpi code exists but is broken

1 files changed, 57 insertions, 0 deletions

diff --git a/src/nrvn.c b/src/nrvn.c
new file mode 100644
index 0000000..84b297f
--- /dev/null
+++ b/src/nrvn.c
@@ -0,0 +1,57 @@
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#include <nrvn.h>
+#include <vga.h>
+#include <idt.h>
+#include <pic.h>
+#include <acpi.h>
+#include <ps2.h>
+#include <multiboot.h>
+#include <mem.h>
+#include <memory.h>
+
+/* Check if the compiler thinks you are targeting the wrong operating system. */
+#if defined(__linux__)
+#error "You are not using a cross-compiler, you will most certainly run into trouble"
+#endif
+
+/* This tutorial will only work for the 32-bit ix86 targets. */
+//#if !defined(__i386__) | !defined(__x86_64__)
+//#error "This tutorial needs to be compiled with a ix86-elf compiler"
+//#endif
+
+void kernel_main(void) {
+	vga_init();
+	vga_puts("hello world\n");
+	vga_puts("welcome to nirvanna\n\n");
+
+	vga_puts("initializing interrupt tables...");
+	idt_init();
+	vga_puts("interrupt tables initialized\n");
+
+
+	vga_puts("initializing the pic...");
+	pic_init();
+	vga_puts("pic initialized\n");
+
+	vga_puts("initializing memory pages... ");
+	if (paging_init()) {
+		vga_puts("memory pages allocated\n");
+	} else {
+		vga_puts("failed to allocate memory pages\n");
+		asm volatile ("cli");
+		asm volatile ("hlt");
+	}
+
+	// TODO -- fix acpi
+
+	vga_puts("initializing ps/2...\n");
+	if (ps2_init(NULL))
+		vga_puts("ps/2 initialized.\n");
+	else
+		vga_puts("ps/2 initialization failed.\n");
+
+	while (1);
+}