*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/storage/ipc/Attic/s_lock.c,v 1.13 1997/04/24 02:35:35 scrappy Exp $
+ * $Header: /cvsroot/pgsql/src/backend/storage/ipc/Attic/s_lock.c,v 1.14 1997/06/06 01:37:14 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
#endif /* defined(linux) && defined(sparc) */
+#if defined(NEED_NS32K_TAS_ASM)
+
+int
+tas(slock_t *m)
+{
+ slock_t res = 0;
+ __asm__("movd 8(fp), r1");
+ __asm__("movqd 0, r0");
+ __asm__("sbitd r0, 0(r1)");
+ __asm__("sprb us, %0" : "=r" (res));
+ res = (res >> 5) & 1;
+ return res;
+}
+
+void
+S_LOCK(slock_t *lock)
+{
+ while (tas(lock))
+ ;
+}
+
+void
+S_UNLOCK(slock_t *lock)
+{
+ *lock = 0;
+}
+
+void
+S_INIT_LOCK(slock_t *lock)
+{
+ S_UNLOCK(lock);
+}
+
+#endif /* NEED_NS32K_TAS_ASM */
+
+
#endif /* HAS_TEST_AND_SET */
# if defined(sparc)
# define NEED_SPARC_TAS_ASM
# endif
+# if defined(ns32k)
+# define NEED_NS32k_TAS_ASM
+# endif
# define HAS_TEST_AND_SET
# if defined(__mips__)
/* # undef HAS_TEST_AND_SET */