initial razzle

kernel/kernel.c

@@ -0,0 +1,74 @@
+#include "./scheduler.c"
+#include "./vga.c"
+#include <stdint.h>
+
+#include "./test_processes.c"
+
+#ifdef ARCH_I386
+#include "../arch/i386/init.c"
+#endif
+
+int kernel_main() {
+  lock = 0;
+
+  outb(0x3D4, 0x0A);
+  outb(0x3D5, 0x20);
+
+  clear_screen();
+
+  interrupt_disable();
+
+  arch_init();
+
+  init_process_table();
+
+  start_process("razzle", (char *) &test_razzle);
+  start_process("dazzle", (char *) &test_dazzle);
+
+  interrupt_enable();
+
+  for (;;) {
+  }
+}
+
+void fault_handler(struct regs *r) {
+  clear_screen();
+  printf("!!! Kernel Panic !!!\n");
+  switch (r->int_no) {
+  case 0: {
+    printf("Error: Divide by Zero\n");
+    break;
+  };
+
+  case 6: {
+    printf("Error: Illegal instruction\n");
+    break;
+  };
+
+  case 8: {
+    printf("Error: Double Fault (Ignoring)\n");
+    break;
+  };
+
+  case 13: {
+    printf("Error: General Protection Fault at\n");
+    break;
+  };
+
+  default: {
+    printf("Error: Unknown (no: %d)\n", r->int_no);
+    break;
+  };
+  }
+
+  printf("EIP: %x\n", r->eip);
+  printf("ESPv: %x\n", *(((unsigned int *)r->esp) + 2));
+  printf("ESP : %x\n", r->esp);
+
+  printf("\n");
+
+  process_debug();
+
+  for (;;) {
+  }
+}