got interrupts working, added sys/{pic,timer,cpu} modules, ready to work on multitasking

git-svn-id: svn://anubis/hos/trunk@69 5b3e749e-e535-0410-8002-a9bb6afbdfca

kernel/boot/k_bootstrap.cc

@@ -6,6 +6,7 @@
 #include "mm/mm.h"
 #include "mm/stack.h"
 #include "lang/kio.h"
+#include "isr/interrupts.h"
 
 #define DEBUG_LETTER(col,chr) *(u16_t *)(KERNEL_OFFSET + CONSOLE_MEMORY \
                                   + 160 * 8 + (col) * 2) \
@@ -48,6 +49,7 @@ u32_t k_bootstrap(mb_info_t * mb_info, u32_t mb_magic)
      */
     mm_bootstrap();
     stack_bootstrap();
+    interrupts_bootstrap();
     kio_bootstrap();
 
     return 0;

kernel/boot/k_main.cc

@@ -1,12 +1,27 @@
 
 #include "lang/kio.h"
 #include "mm/mm.h"
+#include "sys/timer.h"
+#include "sys/pic.h"
+#include "isr/interrupts.h"
 
 extern "C" {
 
 void k_main()
 {
+    kprintf("Kernel load address: 0x%08x\n", KERNEL_CODE);
+    kprintf("Kernel code size: %d KB (%d bytes)\n",
+            (KERNEL_DATA - KERNEL_CODE) >> 10, KERNEL_DATA - KERNEL_CODE);
+    kprintf("Kernel data size: %d KB (%d bytes)\n",
+            (KERNEL_BSS - KERNEL_DATA) >> 10, KERNEL_BSS - KERNEL_DATA);
+    kprintf("Kernel bss size:  %d KB (%d bytes)\n",
+            (KERNEL_END - KERNEL_BSS) >> 10, KERNEL_END - KERNEL_BSS);
     mm_print_memory_map();
+    timer_init(KERNEL_TIMER_FREQ);
+    pic_remap(0x20, 0x28);
+    pic_mask1(0x0);
+    pic_mask2(0x0);
+    interrupts_enable();
 }
 
 } /* extern "C" */