Add m-esr52 at 52.6.0

1 files changed, 134 insertions, 0 deletions

diff --git a/nsprpub/pr/src/md/unix/os_Irix.s b/nsprpub/pr/src/md/unix/os_Irix.s
new file mode 100644
index 000000000..ab1cb0b30
--- /dev/null
+++ b/nsprpub/pr/src/md/unix/os_Irix.s
@@ -0,0 +1,134 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* 
+ *  Atomically add a new element to the top of the stack
+ *
+ *  usage : PR_StackPush(listp, elementp);
+ *  -----------------------
+ */
+
+#include "md/_irix.h"
+#ifdef _PR_HAVE_ATOMIC_CAS
+
+#include <sys/asm.h>
+#include <sys/regdef.h>
+
+LEAF(PR_StackPush)
+
+retry_push:
+.set noreorder
+		lw		v0,0(a0)
+		li		t1,1
+		beq		v0,t1,retry_push
+		move	t0,a1
+
+        ll      v0,0(a0)
+		beq		v0,t1,retry_push
+		nop
+		sc		t1,0(a0)	
+		beq		t1,0,retry_push
+		nop
+		sw		v0,0(a1)
+		sync
+		sw		t0,0(a0)
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		jr		ra
+		nop
+
+END(PR_StackPush)
+
+/*
+ *
+ *  Atomically remove the element at the top of the stack
+ *
+ *  usage : elemep = PR_StackPop(listp);
+ *
+ */
+
+LEAF(PR_StackPop)
+retry_pop:
+.set noreorder
+
+
+		lw		v0,0(a0)
+		li		t1,1
+		beq		v0,0,done
+		nop	
+		beq		v0,t1,retry_pop
+		nop	
+
+        ll      v0,0(a0)
+		beq		v0,0,done
+		nop
+		beq		v0,t1,retry_pop
+		nop
+		sc		t1,0(a0)	
+		beq		t1,0,retry_pop
+		nop
+		lw		t0,0(v0)
+		sw		t0,0(a0)
+done:
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		nop
+		jr		ra
+		nop
+
+END(PR_StackPop)
+
+#endif /* _PR_HAVE_ATOMIC_CAS */