summaryrefslogtreecommitdiff
path: root/libguile/continuations.c
diff options
context:
space:
mode:
Diffstat (limited to 'libguile/continuations.c')
-rw-r--r--libguile/continuations.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/libguile/continuations.c b/libguile/continuations.c
index cf8b6ac03..7e2096698 100644
--- a/libguile/continuations.c
+++ b/libguile/continuations.c
@@ -182,6 +182,17 @@ continuation_print (SCM obj, SCM port, scm_print_state *state SCM_UNUSED)
return 1;
}
+/* James Clark came up with this neat one instruction fix for
+ * continuations on the SPARC. It flushes the register windows so
+ * that all the state of the process is contained in the stack.
+ */
+
+#if defined (sparc) || defined (__sparc__) || defined (__sparc)
+# define SCM_FLUSH_REGISTER_WINDOWS asm("ta 3")
+#else
+# define SCM_FLUSH_REGISTER_WINDOWS /* empty */
+#endif
+
/* this may return more than once: the first time with the escape
procedure, then subsequently with SCM_UNDEFINED (the vals already having been
placed on the VM stack). */