merged in removing-assembly branch to do more in C

git-svn-id: svn://anubis/hos/trunk@80 5b3e749e-e535-0410-8002-a9bb6afbdfca

kernel/sys/cpu.h

@@ -4,6 +4,7 @@
 
 #include "hos_types.h"
 
+static u32_t read_cr0() __attribute__ ((unused));
 static u32_t read_cr0()
 {
     u32_t val;
@@ -11,6 +12,7 @@ static u32_t read_cr0()
     return val;
 }
 
+static u32_t read_cr2() __attribute__ ((unused));
 static u32_t read_cr2()
 {
     u32_t val;
@@ -18,6 +20,7 @@ static u32_t read_cr2()
     return val;
 }
 
+static u32_t read_cr3() __attribute__ ((unused));
 static u32_t read_cr3()
 {
     u32_t val;
@@ -25,10 +28,10 @@ static u32_t read_cr3()
     return val;
 }
 
-#define set_cr0(val) \
+#define write_cr0(val) \
     __asm__ __volatile__ ("movl %0, %%cr0" : : "r" (val));
 
-#define set_cr3(val) \
+#define write_cr3(val) \
     __asm__ __volatile__ ("movl %0, %%cr3" : : "r" (val));
 
 #endif