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/Makefile

@@ -15,7 +15,7 @@ export CXXFLAGS := -Wall -O2 -fno-rtti -fno-exceptions
 export LDFLAGS  := -T $(LDSCRIPT) -Map $(KERNEL).map
 export LDLIBS   := `$(CC) -print-libgcc-file-name`
 
-SUBDIRS         := boot mm lang isr
+SUBDIRS         := boot mm lang isr sys
 SUBDIRS_clean   := $(SUBDIRS:%=%.clean)
 
 .PHONY: all