1 files changed, 65 insertions, 0 deletions

diff --git a/src/include/asm/segment.h b/src/include/asm/segment.h
new file mode 100644
index 0000000..94dd102
--- /dev/null
+++ b/src/include/asm/segment.h
@@ -0,0 +1,65 @@
+static inline unsigned char get_fs_byte(const char * addr)
+{
+        unsigned register char _v;
+
+        __asm__ ("movb %%fs:%1,%0":"=r" (_v):"m" (*addr));
+        return _v;
+}
+
+static inline unsigned short get_fs_word(const unsigned short *addr)
+{
+        unsigned short _v;
+
+        __asm__ ("movw %%fs:%1,%0":"=r" (_v):"m" (*addr));
+        return _v;
+}
+
+static inline unsigned long get_fs_long(const unsigned long *addr)
+{
+        unsigned long _v;
+
+        __asm__ ("movl %%fs:%1,%0":"=r" (_v):"m" (*addr)); \
+        return _v;
+}
+
+static inline void put_fs_byte(char val,char *addr)
+{
+__asm__ ("movb %0,%%fs:%1"::"r" (val),"m" (*addr));
+}
+
+static inline void put_fs_word(short val,short * addr)
+{
+__asm__ ("movw %0,%%fs:%1"::"r" (val),"m" (*addr));
+}
+
+static inline void put_fs_long(unsigned long val,unsigned long * addr)
+{
+__asm__ ("movl %0,%%fs:%1"::"r" (val),"m" (*addr));
+}
+
+/*
+ * Someone who knows GNU asm better than I should double check the followig.
+ * It seems to work, but I don't know if I'm doing something subtly wrong.
+ * --- TYT, 11/24/91
+ * [ nothing wrong here, Linus ]
+ */
+
+static inline unsigned long get_fs() 
+{
+        unsigned short _v;
+        __asm__("mov %%fs,%%ax":"=a" (_v):);
+        return _v;
+}
+
+static inline unsigned long get_ds() 
+{
+        unsigned short _v;
+        __asm__("mov %%ds,%%ax":"=a" (_v):);
+        return _v;
+}
+
+static inline void set_fs(unsigned long val)
+{
+        __asm__("mov %0,%%fs"::"a" ((unsigned short) val));
+}
+