From 5fc1487832e16aa2119e735a388d5f36c8c139e2 Mon Sep 17 00:00:00 2001
From: Szabolcs Nagy <nsz@port70.net>
Date: Sun, 8 Feb 2015 18:56:52 +0100
Subject: [PATCH] fix fesetenv(FE_DFL_ENV) on mips

mips fesetenv did not handle FE_DFL_ENV, now fcsr is cleared in that
case.
---
 src/fenv/mips/fenv.s | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/fenv/mips/fenv.s b/src/fenv/mips/fenv.s
index 095cb606..a3233c1e 100644
--- a/src/fenv/mips/fenv.s
+++ b/src/fenv/mips/fenv.s
@@ -57,7 +57,9 @@ fegetenv:
 .global fesetenv
 .type  fesetenv,@function
 fesetenv:
+	addiu   $5, $4, 1
+	beq     $5, $0, 1f
 	lw      $5, 0($4)
-	ctc1    $5, $31
+1:	ctc1    $5, $31
 	jr      $ra
 	li      $2, 0