X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=sim%2Fcommon%2Fcgen-fpu.h;h=134b4d031c5725c09ed8a33fc3f880f16f7ae46a;hb=64517994807b0d6bb3c6fd106f117c03242fac72;hp=bc3364e00cd8302f6d44baaaf7e59a29eeaf6a9d;hpb=d0352a18a504a4e7b761f6b3264cf11347d8d056;p=deliverable%2Fbinutils-gdb.git

diff --git a/sim/common/cgen-fpu.h b/sim/common/cgen-fpu.h
index bc3364e00c..134b4d031c 100644
--- a/sim/common/cgen-fpu.h
+++ b/sim/common/cgen-fpu.h
@@ -1,5 +1,6 @@
 /* CGEN fpu support
-   Copyright (C) 1999 Cygnus Solutions.  */
+   Copyright (C) 1999 Cygnus Solutions.
+   Copyright (C) 2010 Doug Evans.  */
 
 #ifndef CGEN_FPU_H
 #define CGEN_FPU_H
@@ -18,6 +19,18 @@ typedef struct { SI parts[4]; } TF;
 #define TARGET_EXT_FP_WORDS 4
 #endif
 
+/* Supported floating point conversion kinds (rounding modes).
+   FIXME: The IEEE rounding modes need to be implemented.  */
+
+typedef enum {
+  FPCONV_DEFAULT = 0,
+  FPCONV_TIES_TO_EVEN = 1,
+  FPCONV_TIES_TO_AWAY = 2,
+  FPCONV_TOWARD_ZERO = 3,
+  FPCONV_TOWARD_POSITIVE = 4,
+  FPCONV_TOWARD_NEGATIVE = 5
+} CGEN_FPCONV_KIND;
+
 /* forward decl */
 typedef struct cgen_fp_ops CGEN_FP_OPS;
 
@@ -100,28 +113,28 @@ struct cgen_fp_ops {
 
   /* SF/DF conversion ops */
 
-  DF (*fextsfdf) (CGEN_FPU*, SF);
-  SF (*ftruncdfsf) (CGEN_FPU*, DF);
+  DF (*fextsfdf) (CGEN_FPU*, int, SF);
+  SF (*ftruncdfsf) (CGEN_FPU*, int, DF);
 
-  SF (*floatsisf) (CGEN_FPU*, SI);
-  SF (*floatdisf) (CGEN_FPU*, DI);
-  SF (*ufloatsisf) (CGEN_FPU*, USI);
-  SF (*ufloatdisf) (CGEN_FPU*, UDI);
+  SF (*floatsisf) (CGEN_FPU*, int, SI);
+  SF (*floatdisf) (CGEN_FPU*, int, DI);
+  SF (*ufloatsisf) (CGEN_FPU*, int, USI);
+  SF (*ufloatdisf) (CGEN_FPU*, int, UDI);
 
-  SI (*fixsfsi) (CGEN_FPU*, SF);
-  DI (*fixsfdi) (CGEN_FPU*, SF);
-  USI (*ufixsfsi) (CGEN_FPU*, SF);
-  UDI (*ufixsfdi) (CGEN_FPU*, SF);
+  SI (*fixsfsi) (CGEN_FPU*, int, SF);
+  DI (*fixsfdi) (CGEN_FPU*, int, SF);
+  USI (*ufixsfsi) (CGEN_FPU*, int, SF);
+  UDI (*ufixsfdi) (CGEN_FPU*, int, SF);
 
-  DF (*floatsidf) (CGEN_FPU*, SI);
-  DF (*floatdidf) (CGEN_FPU*, DI);
-  DF (*ufloatsidf) (CGEN_FPU*, USI);
-  DF (*ufloatdidf) (CGEN_FPU*, UDI);
+  DF (*floatsidf) (CGEN_FPU*, int, SI);
+  DF (*floatdidf) (CGEN_FPU*, int, DI);
+  DF (*ufloatsidf) (CGEN_FPU*, int, USI);
+  DF (*ufloatdidf) (CGEN_FPU*, int, UDI);
 
-  SI (*fixdfsi) (CGEN_FPU*, DF);
-  DI (*fixdfdi) (CGEN_FPU*, DF);
-  USI (*ufixdfsi) (CGEN_FPU*, DF);
-  UDI (*ufixdfdi) (CGEN_FPU*, DF);
+  SI (*fixdfsi) (CGEN_FPU*, int, DF);
+  DI (*fixdfdi) (CGEN_FPU*, int, DF);
+  USI (*ufixdfsi) (CGEN_FPU*, int, DF);
+  UDI (*ufixdfdi) (CGEN_FPU*, int, DF);
 
   /* XF mode support (kept separate 'cus not always present) */
 
@@ -146,20 +159,20 @@ struct cgen_fp_ops {
   int (*gtxf) (CGEN_FPU*, XF, XF);
   int (*gexf) (CGEN_FPU*, XF, XF);
 
-  XF (*extsfxf) (CGEN_FPU*, SF);
-  XF (*extdfxf) (CGEN_FPU*, DF);
-  SF (*truncxfsf) (CGEN_FPU*, XF);
-  DF (*truncxfdf) (CGEN_FPU*, XF);
+  XF (*extsfxf) (CGEN_FPU*, int, SF);
+  XF (*extdfxf) (CGEN_FPU*, int, DF);
+  SF (*truncxfsf) (CGEN_FPU*, int, XF);
+  DF (*truncxfdf) (CGEN_FPU*, int, XF);
 
-  XF (*floatsixf) (CGEN_FPU*, SI);
-  XF (*floatdixf) (CGEN_FPU*, DI);
-  XF (*ufloatsixf) (CGEN_FPU*, USI);
-  XF (*ufloatdixf) (CGEN_FPU*, UDI);
+  XF (*floatsixf) (CGEN_FPU*, int, SI);
+  XF (*floatdixf) (CGEN_FPU*, int, DI);
+  XF (*ufloatsixf) (CGEN_FPU*, int, USI);
+  XF (*ufloatdixf) (CGEN_FPU*, int, UDI);
 
-  SI (*fixxfsi) (CGEN_FPU*, XF);
-  DI (*fixxfdi) (CGEN_FPU*, XF);
-  USI (*ufixxfsi) (CGEN_FPU*, XF);
-  UDI (*ufixxfdi) (CGEN_FPU*, XF);
+  SI (*fixxfsi) (CGEN_FPU*, int, XF);
+  DI (*fixxfdi) (CGEN_FPU*, int, XF);
+  USI (*ufixxfsi) (CGEN_FPU*, int, XF);
+  UDI (*ufixxfdi) (CGEN_FPU*, int, XF);
 
   /* TF mode support (kept separate 'cus not always present) */
 
@@ -184,20 +197,20 @@ struct cgen_fp_ops {
   int (*gttf) (CGEN_FPU*, TF, TF);
   int (*getf) (CGEN_FPU*, TF, TF);
 
-  TF (*extsftf) (CGEN_FPU*, SF);
-  TF (*extdftf) (CGEN_FPU*, DF);
-  SF (*trunctfsf) (CGEN_FPU*, TF);
-  DF (*trunctfdf) (CGEN_FPU*, TF);
+  TF (*extsftf) (CGEN_FPU*, int, SF);
+  TF (*extdftf) (CGEN_FPU*, int, DF);
+  SF (*trunctfsf) (CGEN_FPU*, int, TF);
+  DF (*trunctfdf) (CGEN_FPU*, int, TF);
 
-  TF (*floatsitf) (CGEN_FPU*, SI);
-  TF (*floatditf) (CGEN_FPU*, DI);
-  TF (*ufloatsitf) (CGEN_FPU*, USI);
-  TF (*ufloatditf) (CGEN_FPU*, UDI);
+  TF (*floatsitf) (CGEN_FPU*, int, SI);
+  TF (*floatditf) (CGEN_FPU*, int, DI);
+  TF (*ufloatsitf) (CGEN_FPU*, int, USI);
+  TF (*ufloatditf) (CGEN_FPU*, int, UDI);
 
-  SI (*fixtfsi) (CGEN_FPU*, TF);
-  DI (*fixtfdi) (CGEN_FPU*, TF);
-  USI (*ufixtfsi) (CGEN_FPU*, TF);
-  UDI (*ufixtfdi) (CGEN_FPU*, TF);
+  SI (*fixtfsi) (CGEN_FPU*, int, TF);
+  DI (*fixtfdi) (CGEN_FPU*, int, TF);
+  USI (*ufixtfsi) (CGEN_FPU*, int, TF);
+  UDI (*ufixtfdi) (CGEN_FPU*, int, TF);
 
 };