Module Name: src
Committed By: maya
Date: Tue Oct 17 00:26:35 UTC 2017
Modified Files:
src/sys/arch/alpha/include: fpu.h
Log Message:
Explain our implementation choice for implementation-defined values
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/alpha/include/fpu.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/alpha/include/fpu.h
diff -u src/sys/arch/alpha/include/fpu.h:1.6 src/sys/arch/alpha/include/fpu.h:1.7
--- src/sys/arch/alpha/include/fpu.h:1.6 Sat May 10 15:31:04 2008
+++ src/sys/arch/alpha/include/fpu.h Tue Oct 17 00:26:35 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: fpu.h,v 1.6 2008/05/10 15:31:04 martin Exp $ */
+/* $NetBSD: fpu.h,v 1.7 2017/10/17 00:26:35 maya Exp $ */
/*-
* Copyright (c) 2001 Ross Harvey
@@ -91,8 +91,8 @@
#define IEEE_TRAP_ENABLE_INV _FP_C_DEF(1)
#define IEEE_INHERIT _FP_C_DEF(14)
-#define IEEE_MAP_UMZ _FP_C_DEF(13)
-#define IEEE_MAP_DMZ _FP_C_DEF(12)
+#define IEEE_MAP_UMZ _FP_C_DEF(13) /* Map underflowed outputs to zero */
+#define IEEE_MAP_DMZ _FP_C_DEF(12) /* Map denormal inputs to zero */
#define FP_C_MIRRORED (IEEE_STATUS_INE | IEEE_STATUS_UNF | IEEE_STATUS_OVF\
| IEEE_STATUS_DZE | IEEE_STATUS_INV)
