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authorEdgar E. Iglesias <edgar.iglesias@petalogix.com>2010-09-09 22:05:48 +0200
committerEdgar E. Iglesias <edgar.iglesias@gmail.com>2010-09-09 22:05:48 +0200
commitef9d48da598691ca97bb3588f8bf625717f65418 (patch)
tree256b5ecba2888a3d182e153cea1a63d08d4be13f /target-microblaze
parente403e433c1a30568a019cac9ba7301f8d5d7a382 (diff)
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microblaze: Add support for fcmp.un
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
Diffstat (limited to 'target-microblaze')
-rw-r--r--target-microblaze/op_helper.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/target-microblaze/op_helper.c b/target-microblaze/op_helper.c
index 294e08c..3d2b313 100644
--- a/target-microblaze/op_helper.c
+++ b/target-microblaze/op_helper.c
@@ -297,8 +297,22 @@ uint32_t helper_fdiv(uint32_t a, uint32_t b)
uint32_t helper_fcmp_un(uint32_t a, uint32_t b)
{
- cpu_abort(env, "Unsupported fcmp.un\n");
- return 0;
+ CPU_FloatU fa, fb;
+ uint32_t r = 0;
+
+ fa.l = a;
+ fb.l = b;
+
+ if (float32_is_signaling_nan(fa.f) || float32_is_signaling_nan(fb.f)) {
+ update_fpu_flags(float_flag_invalid);
+ r = 1;
+ }
+
+ if (float32_is_nan(fa.f) || float32_is_nan(fb.f)) {
+ r = 1;
+ }
+
+ return r;
}
uint32_t helper_fcmp_lt(uint32_t a, uint32_t b)