Changeset 94678 in vbox for trunk/src

Timestamp:

Apr 21, 2022 11:53:49 PM (3 years ago)

Author:

vboxsync

Message:

libs/softfloat: Implemented a 387-style fscale function. bugref:9898

Location:

trunk/src/libs/softfloat-3e

Files:

• Makefile.kmk (modified) (1 diff)
• source/extF80_scale_extF80.c (added)
• source/include/internals.h (modified) (1 diff)
• source/include/softfloat.h (modified) (2 diffs)
• source/include/softfloat_types.h (modified) (1 diff)

trunk/src/libs/softfloat-3e/Makefile.kmk

@@ -269 +269 @@
         source/extF80_partialRem.c \
         source/extF80_sqrt.c \
+        source/extF80_scale_extF80.c \
         source/extF80_eq.c \
         source/extF80_le.c \

trunk/src/libs/softfloat-3e/source/include/internals.h

@@ -49 +49 @@
 #ifdef SOFTFLOAT_FAST_INT64
 union extF80M_extF80 { struct extFloat80M fM; extFloat80_t f; };
+# define EXTF80M_EXTF80_INIT( a_signExp, a_signif )        { EXTFLOAT80M_INIT( a_signExp, a_signif ) }         /* VBox */
+# define EXTF80M_EXTF80_INIT3( a_sign, a_signif, a_exp )   { EXTFLOAT80M_INIT3( a_sign, a_signif, a_exp ) }    /* VBox */
+# define EXTF80M_EXTF80_INIT_C( a_signExp, a_signif )      { EXTFLOAT80M_INIT_C( a_signExp, a_signif ) }       /* VBox */
+# define EXTF80M_EXTF80_INIT3_C( a_sign, a_signif, a_exp ) { EXTFLOAT80M_INIT3_C( a_sign, a_signif, a_exp ) }  /* VBox */
 union ui128_f128 { struct uint128 ui; float128_t f; };
 #endif

trunk/src/libs/softfloat-3e/source/include/softfloat.h

@@ -106 +106 @@
 #else /* VBox: Match X86_FSW_?E */
     softfloat_flag_invalid   = 1<<0 /**< X86_FSW_IE */,
-    //softfloat_flag_ X86_FSW_DE          RT_BIT_32(1)
+    softfloat_flag_denormal  = 1<<1 /**< X86_FSW_DE - only returned by some VBox specific functions */,
     softfloat_flag_infinite  = 1<<2 /**< X86_FSW_ZE */,
     softfloat_flag_overflow  = 1<<3 /**< X86_FSW_OE */,
@@ -300 +300 @@
                                 uint16_t *pfCxFlags, softfloat_state_t *pState );                       /* VBox: FPREM/FPREM1 */
 extFloat80_t extF80_sqrt( extFloat80_t SOFTFLOAT_STATE_DECL_COMMA );
+extFloat80_t extF80_scale_extF80( extFloat80_t, extFloat80_t SOFTFLOAT_STATE_DECL_COMMA );
 bool extF80_eq( extFloat80_t, extFloat80_t SOFTFLOAT_STATE_DECL_COMMA );
 bool extF80_le( extFloat80_t, extFloat80_t SOFTFLOAT_STATE_DECL_COMMA );

trunk/src/libs/softfloat-3e/source/include/softfloat_types.h

@@ -60 +60 @@
 #ifdef LITTLEENDIAN
 struct extFloat80M { uint64_t signif; uint16_t signExp; };
+# define EXTFLOAT80M_INIT( a_signExp, a_signif )    { a_signif, a_signExp }                             /* VBox */
 #else
 struct extFloat80M { uint16_t signExp; uint64_t signif; };
+# define EXTFLOAT80M_INIT( a_signExp, a_signif )    { a_signExp, a_signif }                             /* VBox */
 #endif
+#define EXTFLOAT80M_INIT_C( a_signExp, a_signif )   EXTFLOAT80M_INIT( a_signExp, UINT64_C( a_signif ) ) /* VBox */
+#define EXTFLOAT80M_INIT3( a_sign, a_signif, a_exp ) \
+    EXTFLOAT80M_INIT( packToExtF80UI64( a_sign, a_exp ), a_signif)                                      /* VBox */
+#define EXTFLOAT80M_INIT3_C( a_sign, a_signif, a_exp ) \
+    EXTFLOAT80M_INIT3( a_sign, UINT64_C( a_signif ), a_exp )                                            /* VBox */
 
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