From: Paolo Bonzini Date: Wed, 24 Oct 2012 11:12:00 +0000 (+0200) Subject: fpu: move public header file to include/fpu X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6b4c305cbd549e9d12a6b0192fdb8d6519a9664c;p=qemu.git fpu: move public header file to include/fpu Signed-off-by: Paolo Bonzini --- diff --git a/configure b/configure index 4d0e1163a2..c989fece9a 100755 --- a/configure +++ b/configure @@ -278,7 +278,7 @@ QEMU_CFLAGS="-fno-strict-aliasing $QEMU_CFLAGS" QEMU_CFLAGS="-Wall -Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS" QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS" QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS" -QEMU_INCLUDES="-I. -I\$(SRC_PATH) -I\$(SRC_PATH)/include -I\$(SRC_PATH)/fpu" +QEMU_INCLUDES="-I. -I\$(SRC_PATH) -I\$(SRC_PATH)/include" if test "$debug_info" = "yes"; then CFLAGS="-g $CFLAGS" LDFLAGS="-g $LDFLAGS" diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 841314686b..0cfa6b4831 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -40,7 +40,7 @@ these four paragraphs for those parts of this code that are retained. */ #include "config.h" -#include "softfloat.h" +#include "fpu/softfloat.h" /*---------------------------------------------------------------------------- | Primitive arithmetic functions, including multi-word arithmetic, and diff --git a/fpu/softfloat.h b/fpu/softfloat.h deleted file mode 100644 index 0946f0739d..0000000000 --- a/fpu/softfloat.h +++ /dev/null @@ -1,638 +0,0 @@ -/* - * QEMU float support - * - * Derived from SoftFloat. - */ - -/*============================================================================ - -This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic -Package, Release 2b. - -Written by John R. Hauser. This work was made possible in part by the -International Computer Science Institute, located at Suite 600, 1947 Center -Street, Berkeley, California 94704. Funding was partially provided by the -National Science Foundation under grant MIP-9311980. The original version -of this code was written as part of a project to build a fixed-point vector -processor in collaboration with the University of California at Berkeley, -overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ -arithmetic/SoftFloat.html'. - -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has -been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES -RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS -AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, -COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE -EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE -INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR -OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. - -Derivative works are acceptable, even for commercial purposes, so long as -(1) the source code for the derivative work includes prominent notice that -the work is derivative, and (2) the source code includes prominent notice with -these four paragraphs for those parts of this code that are retained. - -=============================================================================*/ - -#ifndef SOFTFLOAT_H -#define SOFTFLOAT_H - -#if defined(CONFIG_SOLARIS) && defined(CONFIG_NEEDS_LIBSUNMATH) -#include -#endif - -#include -#include "config-host.h" -#include "qemu/osdep.h" - -/*---------------------------------------------------------------------------- -| Each of the following `typedef's defines the most convenient type that holds -| integers of at least as many bits as specified. For example, `uint8' should -| be the most convenient type that can hold unsigned integers of as many as -| 8 bits. The `flag' type must be able to hold either a 0 or 1. For most -| implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed -| to the same as `int'. -*----------------------------------------------------------------------------*/ -typedef uint8_t flag; -typedef uint8_t uint8; -typedef int8_t int8; -typedef unsigned int uint32; -typedef signed int int32; -typedef uint64_t uint64; -typedef int64_t int64; - -#define LIT64( a ) a##LL -#define INLINE static inline - -#define STATUS_PARAM , float_status *status -#define STATUS(field) status->field -#define STATUS_VAR , status - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE floating-point ordering relations -*----------------------------------------------------------------------------*/ -enum { - float_relation_less = -1, - float_relation_equal = 0, - float_relation_greater = 1, - float_relation_unordered = 2 -}; - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE floating-point types. -*----------------------------------------------------------------------------*/ -/* Use structures for soft-float types. This prevents accidentally mixing - them with native int/float types. A sufficiently clever compiler and - sane ABI should be able to see though these structs. However - x86/gcc 3.x seems to struggle a bit, so leave them disabled by default. */ -//#define USE_SOFTFLOAT_STRUCT_TYPES -#ifdef USE_SOFTFLOAT_STRUCT_TYPES -typedef struct { - uint16_t v; -} float16; -#define float16_val(x) (((float16)(x)).v) -#define make_float16(x) __extension__ ({ float16 f16_val = {x}; f16_val; }) -#define const_float16(x) { x } -typedef struct { - uint32_t v; -} float32; -/* The cast ensures an error if the wrong type is passed. */ -#define float32_val(x) (((float32)(x)).v) -#define make_float32(x) __extension__ ({ float32 f32_val = {x}; f32_val; }) -#define const_float32(x) { x } -typedef struct { - uint64_t v; -} float64; -#define float64_val(x) (((float64)(x)).v) -#define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; }) -#define const_float64(x) { x } -#else -typedef uint16_t float16; -typedef uint32_t float32; -typedef uint64_t float64; -#define float16_val(x) (x) -#define float32_val(x) (x) -#define float64_val(x) (x) -#define make_float16(x) (x) -#define make_float32(x) (x) -#define make_float64(x) (x) -#define const_float16(x) (x) -#define const_float32(x) (x) -#define const_float64(x) (x) -#endif -typedef struct { - uint64_t low; - uint16_t high; -} floatx80; -#define make_floatx80(exp, mant) ((floatx80) { mant, exp }) -#define make_floatx80_init(exp, mant) { .low = mant, .high = exp } -typedef struct { -#ifdef HOST_WORDS_BIGENDIAN - uint64_t high, low; -#else - uint64_t low, high; -#endif -} float128; -#define make_float128(high_, low_) ((float128) { .high = high_, .low = low_ }) -#define make_float128_init(high_, low_) { .high = high_, .low = low_ } - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE floating-point underflow tininess-detection mode. -*----------------------------------------------------------------------------*/ -enum { - float_tininess_after_rounding = 0, - float_tininess_before_rounding = 1 -}; - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE floating-point rounding mode. -*----------------------------------------------------------------------------*/ -enum { - float_round_nearest_even = 0, - float_round_down = 1, - float_round_up = 2, - float_round_to_zero = 3 -}; - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE floating-point exception flags. -*----------------------------------------------------------------------------*/ -enum { - float_flag_invalid = 1, - float_flag_divbyzero = 4, - float_flag_overflow = 8, - float_flag_underflow = 16, - float_flag_inexact = 32, - float_flag_input_denormal = 64, - float_flag_output_denormal = 128 -}; - -typedef struct float_status { - signed char float_detect_tininess; - signed char float_rounding_mode; - signed char float_exception_flags; - signed char floatx80_rounding_precision; - /* should denormalised results go to zero and set the inexact flag? */ - flag flush_to_zero; - /* should denormalised inputs go to zero and set the input_denormal flag? */ - flag flush_inputs_to_zero; - flag default_nan_mode; -} float_status; - -void set_float_rounding_mode(int val STATUS_PARAM); -void set_float_exception_flags(int val STATUS_PARAM); -INLINE void set_float_detect_tininess(int val STATUS_PARAM) -{ - STATUS(float_detect_tininess) = val; -} -INLINE void set_flush_to_zero(flag val STATUS_PARAM) -{ - STATUS(flush_to_zero) = val; -} -INLINE void set_flush_inputs_to_zero(flag val STATUS_PARAM) -{ - STATUS(flush_inputs_to_zero) = val; -} -INLINE void set_default_nan_mode(flag val STATUS_PARAM) -{ - STATUS(default_nan_mode) = val; -} -INLINE int get_float_exception_flags(float_status *status) -{ - return STATUS(float_exception_flags); -} -void set_floatx80_rounding_precision(int val STATUS_PARAM); - -/*---------------------------------------------------------------------------- -| Routine to raise any or all of the software IEC/IEEE floating-point -| exception flags. -*----------------------------------------------------------------------------*/ -void float_raise( int8 flags STATUS_PARAM); - -/*---------------------------------------------------------------------------- -| Options to indicate which negations to perform in float*_muladd() -| Using these differs from negating an input or output before calling -| the muladd function in that this means that a NaN doesn't have its -| sign bit inverted before it is propagated. -*----------------------------------------------------------------------------*/ -enum { - float_muladd_negate_c = 1, - float_muladd_negate_product = 2, - float_muladd_negate_result = 4, -}; - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE integer-to-floating-point conversion routines. -*----------------------------------------------------------------------------*/ -float32 int32_to_float32( int32 STATUS_PARAM ); -float64 int32_to_float64( int32 STATUS_PARAM ); -float32 uint32_to_float32( uint32 STATUS_PARAM ); -float64 uint32_to_float64( uint32 STATUS_PARAM ); -floatx80 int32_to_floatx80( int32 STATUS_PARAM ); -float128 int32_to_float128( int32 STATUS_PARAM ); -float32 int64_to_float32( int64 STATUS_PARAM ); -float32 uint64_to_float32( uint64 STATUS_PARAM ); -float64 int64_to_float64( int64 STATUS_PARAM ); -float64 uint64_to_float64( uint64 STATUS_PARAM ); -floatx80 int64_to_floatx80( int64 STATUS_PARAM ); -float128 int64_to_float128( int64 STATUS_PARAM ); - -/*---------------------------------------------------------------------------- -| Software half-precision conversion routines. -*----------------------------------------------------------------------------*/ -float16 float32_to_float16( float32, flag STATUS_PARAM ); -float32 float16_to_float32( float16, flag STATUS_PARAM ); - -/*---------------------------------------------------------------------------- -| Software half-precision operations. -*----------------------------------------------------------------------------*/ -int float16_is_quiet_nan( float16 ); -int float16_is_signaling_nan( float16 ); -float16 float16_maybe_silence_nan( float16 ); - -INLINE int float16_is_any_nan(float16 a) -{ - return ((float16_val(a) & ~0x8000) > 0x7c00); -} - -/*---------------------------------------------------------------------------- -| The pattern for a default generated half-precision NaN. -*----------------------------------------------------------------------------*/ -extern const float16 float16_default_nan; - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE single-precision conversion routines. -*----------------------------------------------------------------------------*/ -int_fast16_t float32_to_int16_round_to_zero(float32 STATUS_PARAM); -uint_fast16_t float32_to_uint16_round_to_zero(float32 STATUS_PARAM); -int32 float32_to_int32( float32 STATUS_PARAM ); -int32 float32_to_int32_round_to_zero( float32 STATUS_PARAM ); -uint32 float32_to_uint32( float32 STATUS_PARAM ); -uint32 float32_to_uint32_round_to_zero( float32 STATUS_PARAM ); -int64 float32_to_int64( float32 STATUS_PARAM ); -int64 float32_to_int64_round_to_zero( float32 STATUS_PARAM ); -float64 float32_to_float64( float32 STATUS_PARAM ); -floatx80 float32_to_floatx80( float32 STATUS_PARAM ); -float128 float32_to_float128( float32 STATUS_PARAM ); - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE single-precision operations. -*----------------------------------------------------------------------------*/ -float32 float32_round_to_int( float32 STATUS_PARAM ); -float32 float32_add( float32, float32 STATUS_PARAM ); -float32 float32_sub( float32, float32 STATUS_PARAM ); -float32 float32_mul( float32, float32 STATUS_PARAM ); -float32 float32_div( float32, float32 STATUS_PARAM ); -float32 float32_rem( float32, float32 STATUS_PARAM ); -float32 float32_muladd(float32, float32, float32, int STATUS_PARAM); -float32 float32_sqrt( float32 STATUS_PARAM ); -float32 float32_exp2( float32 STATUS_PARAM ); -float32 float32_log2( float32 STATUS_PARAM ); -int float32_eq( float32, float32 STATUS_PARAM ); -int float32_le( float32, float32 STATUS_PARAM ); -int float32_lt( float32, float32 STATUS_PARAM ); -int float32_unordered( float32, float32 STATUS_PARAM ); -int float32_eq_quiet( float32, float32 STATUS_PARAM ); -int float32_le_quiet( float32, float32 STATUS_PARAM ); -int float32_lt_quiet( float32, float32 STATUS_PARAM ); -int float32_unordered_quiet( float32, float32 STATUS_PARAM ); -int float32_compare( float32, float32 STATUS_PARAM ); -int float32_compare_quiet( float32, float32 STATUS_PARAM ); -float32 float32_min(float32, float32 STATUS_PARAM); -float32 float32_max(float32, float32 STATUS_PARAM); -int float32_is_quiet_nan( float32 ); -int float32_is_signaling_nan( float32 ); -float32 float32_maybe_silence_nan( float32 ); -float32 float32_scalbn( float32, int STATUS_PARAM ); - -INLINE float32 float32_abs(float32 a) -{ - /* Note that abs does *not* handle NaN specially, nor does - * it flush denormal inputs to zero. - */ - return make_float32(float32_val(a) & 0x7fffffff); -} - -INLINE float32 float32_chs(float32 a) -{ - /* Note that chs does *not* handle NaN specially, nor does - * it flush denormal inputs to zero. - */ - return make_float32(float32_val(a) ^ 0x80000000); -} - -INLINE int float32_is_infinity(float32 a) -{ - return (float32_val(a) & 0x7fffffff) == 0x7f800000; -} - -INLINE int float32_is_neg(float32 a) -{ - return float32_val(a) >> 31; -} - -INLINE int float32_is_zero(float32 a) -{ - return (float32_val(a) & 0x7fffffff) == 0; -} - -INLINE int float32_is_any_nan(float32 a) -{ - return ((float32_val(a) & ~(1 << 31)) > 0x7f800000UL); -} - -INLINE int float32_is_zero_or_denormal(float32 a) -{ - return (float32_val(a) & 0x7f800000) == 0; -} - -INLINE float32 float32_set_sign(float32 a, int sign) -{ - return make_float32((float32_val(a) & 0x7fffffff) | (sign << 31)); -} - -#define float32_zero make_float32(0) -#define float32_one make_float32(0x3f800000) -#define float32_ln2 make_float32(0x3f317218) -#define float32_pi make_float32(0x40490fdb) -#define float32_half make_float32(0x3f000000) -#define float32_infinity make_float32(0x7f800000) - - -/*---------------------------------------------------------------------------- -| The pattern for a default generated single-precision NaN. -*----------------------------------------------------------------------------*/ -extern const float32 float32_default_nan; - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE double-precision conversion routines. -*----------------------------------------------------------------------------*/ -int_fast16_t float64_to_int16_round_to_zero(float64 STATUS_PARAM); -uint_fast16_t float64_to_uint16_round_to_zero(float64 STATUS_PARAM); -int32 float64_to_int32( float64 STATUS_PARAM ); -int32 float64_to_int32_round_to_zero( float64 STATUS_PARAM ); -uint32 float64_to_uint32( float64 STATUS_PARAM ); -uint32 float64_to_uint32_round_to_zero( float64 STATUS_PARAM ); -int64 float64_to_int64( float64 STATUS_PARAM ); -int64 float64_to_int64_round_to_zero( float64 STATUS_PARAM ); -uint64 float64_to_uint64 (float64 a STATUS_PARAM); -uint64 float64_to_uint64_round_to_zero (float64 a STATUS_PARAM); -float32 float64_to_float32( float64 STATUS_PARAM ); -floatx80 float64_to_floatx80( float64 STATUS_PARAM ); -float128 float64_to_float128( float64 STATUS_PARAM ); - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE double-precision operations. -*----------------------------------------------------------------------------*/ -float64 float64_round_to_int( float64 STATUS_PARAM ); -float64 float64_trunc_to_int( float64 STATUS_PARAM ); -float64 float64_add( float64, float64 STATUS_PARAM ); -float64 float64_sub( float64, float64 STATUS_PARAM ); -float64 float64_mul( float64, float64 STATUS_PARAM ); -float64 float64_div( float64, float64 STATUS_PARAM ); -float64 float64_rem( float64, float64 STATUS_PARAM ); -float64 float64_muladd(float64, float64, float64, int STATUS_PARAM); -float64 float64_sqrt( float64 STATUS_PARAM ); -float64 float64_log2( float64 STATUS_PARAM ); -int float64_eq( float64, float64 STATUS_PARAM ); -int float64_le( float64, float64 STATUS_PARAM ); -int float64_lt( float64, float64 STATUS_PARAM ); -int float64_unordered( float64, float64 STATUS_PARAM ); -int float64_eq_quiet( float64, float64 STATUS_PARAM ); -int float64_le_quiet( float64, float64 STATUS_PARAM ); -int float64_lt_quiet( float64, float64 STATUS_PARAM ); -int float64_unordered_quiet( float64, float64 STATUS_PARAM ); -int float64_compare( float64, float64 STATUS_PARAM ); -int float64_compare_quiet( float64, float64 STATUS_PARAM ); -float64 float64_min(float64, float64 STATUS_PARAM); -float64 float64_max(float64, float64 STATUS_PARAM); -int float64_is_quiet_nan( float64 a ); -int float64_is_signaling_nan( float64 ); -float64 float64_maybe_silence_nan( float64 ); -float64 float64_scalbn( float64, int STATUS_PARAM ); - -INLINE float64 float64_abs(float64 a) -{ - /* Note that abs does *not* handle NaN specially, nor does - * it flush denormal inputs to zero. - */ - return make_float64(float64_val(a) & 0x7fffffffffffffffLL); -} - -INLINE float64 float64_chs(float64 a) -{ - /* Note that chs does *not* handle NaN specially, nor does - * it flush denormal inputs to zero. - */ - return make_float64(float64_val(a) ^ 0x8000000000000000LL); -} - -INLINE int float64_is_infinity(float64 a) -{ - return (float64_val(a) & 0x7fffffffffffffffLL ) == 0x7ff0000000000000LL; -} - -INLINE int float64_is_neg(float64 a) -{ - return float64_val(a) >> 63; -} - -INLINE int float64_is_zero(float64 a) -{ - return (float64_val(a) & 0x7fffffffffffffffLL) == 0; -} - -INLINE int float64_is_any_nan(float64 a) -{ - return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL); -} - -INLINE int float64_is_zero_or_denormal(float64 a) -{ - return (float64_val(a) & 0x7ff0000000000000LL) == 0; -} - -INLINE float64 float64_set_sign(float64 a, int sign) -{ - return make_float64((float64_val(a) & 0x7fffffffffffffffULL) - | ((int64_t)sign << 63)); -} - -#define float64_zero make_float64(0) -#define float64_one make_float64(0x3ff0000000000000LL) -#define float64_ln2 make_float64(0x3fe62e42fefa39efLL) -#define float64_pi make_float64(0x400921fb54442d18LL) -#define float64_half make_float64(0x3fe0000000000000LL) -#define float64_infinity make_float64(0x7ff0000000000000LL) - -/*---------------------------------------------------------------------------- -| The pattern for a default generated double-precision NaN. -*----------------------------------------------------------------------------*/ -extern const float64 float64_default_nan; - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE extended double-precision conversion routines. -*----------------------------------------------------------------------------*/ -int32 floatx80_to_int32( floatx80 STATUS_PARAM ); -int32 floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM ); -int64 floatx80_to_int64( floatx80 STATUS_PARAM ); -int64 floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM ); -float32 floatx80_to_float32( floatx80 STATUS_PARAM ); -float64 floatx80_to_float64( floatx80 STATUS_PARAM ); -float128 floatx80_to_float128( floatx80 STATUS_PARAM ); - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE extended double-precision operations. -*----------------------------------------------------------------------------*/ -floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM ); -floatx80 floatx80_add( floatx80, floatx80 STATUS_PARAM ); -floatx80 floatx80_sub( floatx80, floatx80 STATUS_PARAM ); -floatx80 floatx80_mul( floatx80, floatx80 STATUS_PARAM ); -floatx80 floatx80_div( floatx80, floatx80 STATUS_PARAM ); -floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM ); -floatx80 floatx80_sqrt( floatx80 STATUS_PARAM ); -int floatx80_eq( floatx80, floatx80 STATUS_PARAM ); -int floatx80_le( floatx80, floatx80 STATUS_PARAM ); -int floatx80_lt( floatx80, floatx80 STATUS_PARAM ); -int floatx80_unordered( floatx80, floatx80 STATUS_PARAM ); -int floatx80_eq_quiet( floatx80, floatx80 STATUS_PARAM ); -int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM ); -int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM ); -int floatx80_unordered_quiet( floatx80, floatx80 STATUS_PARAM ); -int floatx80_compare( floatx80, floatx80 STATUS_PARAM ); -int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM ); -int floatx80_is_quiet_nan( floatx80 ); -int floatx80_is_signaling_nan( floatx80 ); -floatx80 floatx80_maybe_silence_nan( floatx80 ); -floatx80 floatx80_scalbn( floatx80, int STATUS_PARAM ); - -INLINE floatx80 floatx80_abs(floatx80 a) -{ - a.high &= 0x7fff; - return a; -} - -INLINE floatx80 floatx80_chs(floatx80 a) -{ - a.high ^= 0x8000; - return a; -} - -INLINE int floatx80_is_infinity(floatx80 a) -{ - return (a.high & 0x7fff) == 0x7fff && a.low == 0x8000000000000000LL; -} - -INLINE int floatx80_is_neg(floatx80 a) -{ - return a.high >> 15; -} - -INLINE int floatx80_is_zero(floatx80 a) -{ - return (a.high & 0x7fff) == 0 && a.low == 0; -} - -INLINE int floatx80_is_zero_or_denormal(floatx80 a) -{ - return (a.high & 0x7fff) == 0; -} - -INLINE int floatx80_is_any_nan(floatx80 a) -{ - return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1); -} - -#define floatx80_zero make_floatx80(0x0000, 0x0000000000000000LL) -#define floatx80_one make_floatx80(0x3fff, 0x8000000000000000LL) -#define floatx80_ln2 make_floatx80(0x3ffe, 0xb17217f7d1cf79acLL) -#define floatx80_pi make_floatx80(0x4000, 0xc90fdaa22168c235LL) -#define floatx80_half make_floatx80(0x3ffe, 0x8000000000000000LL) -#define floatx80_infinity make_floatx80(0x7fff, 0x8000000000000000LL) - -/*---------------------------------------------------------------------------- -| The pattern for a default generated extended double-precision NaN. -*----------------------------------------------------------------------------*/ -extern const floatx80 floatx80_default_nan; - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE quadruple-precision conversion routines. -*----------------------------------------------------------------------------*/ -int32 float128_to_int32( float128 STATUS_PARAM ); -int32 float128_to_int32_round_to_zero( float128 STATUS_PARAM ); -int64 float128_to_int64( float128 STATUS_PARAM ); -int64 float128_to_int64_round_to_zero( float128 STATUS_PARAM ); -float32 float128_to_float32( float128 STATUS_PARAM ); -float64 float128_to_float64( float128 STATUS_PARAM ); -floatx80 float128_to_floatx80( float128 STATUS_PARAM ); - -/*---------------------------------------------------------------------------- -| Software IEC/IEEE quadruple-precision operations. -*----------------------------------------------------------------------------*/ -float128 float128_round_to_int( float128 STATUS_PARAM ); -float128 float128_add( float128, float128 STATUS_PARAM ); -float128 float128_sub( float128, float128 STATUS_PARAM ); -float128 float128_mul( float128, float128 STATUS_PARAM ); -float128 float128_div( float128, float128 STATUS_PARAM ); -float128 float128_rem( float128, float128 STATUS_PARAM ); -float128 float128_sqrt( float128 STATUS_PARAM ); -int float128_eq( float128, float128 STATUS_PARAM ); -int float128_le( float128, float128 STATUS_PARAM ); -int float128_lt( float128, float128 STATUS_PARAM ); -int float128_unordered( float128, float128 STATUS_PARAM ); -int float128_eq_quiet( float128, float128 STATUS_PARAM ); -int float128_le_quiet( float128, float128 STATUS_PARAM ); -int float128_lt_quiet( float128, float128 STATUS_PARAM ); -int float128_unordered_quiet( float128, float128 STATUS_PARAM ); -int float128_compare( float128, float128 STATUS_PARAM ); -int float128_compare_quiet( float128, float128 STATUS_PARAM ); -int float128_is_quiet_nan( float128 ); -int float128_is_signaling_nan( float128 ); -float128 float128_maybe_silence_nan( float128 ); -float128 float128_scalbn( float128, int STATUS_PARAM ); - -INLINE float128 float128_abs(float128 a) -{ - a.high &= 0x7fffffffffffffffLL; - return a; -} - -INLINE float128 float128_chs(float128 a) -{ - a.high ^= 0x8000000000000000LL; - return a; -} - -INLINE int float128_is_infinity(float128 a) -{ - return (a.high & 0x7fffffffffffffffLL) == 0x7fff000000000000LL && a.low == 0; -} - -INLINE int float128_is_neg(float128 a) -{ - return a.high >> 63; -} - -INLINE int float128_is_zero(float128 a) -{ - return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0; -} - -INLINE int float128_is_zero_or_denormal(float128 a) -{ - return (a.high & 0x7fff000000000000LL) == 0; -} - -INLINE int float128_is_any_nan(float128 a) -{ - return ((a.high >> 48) & 0x7fff) == 0x7fff && - ((a.low != 0) || ((a.high & 0xffffffffffffLL) != 0)); -} - -/*---------------------------------------------------------------------------- -| The pattern for a default generated quadruple-precision NaN. -*----------------------------------------------------------------------------*/ -extern const float128 float128_default_nan; - -#endif /* !SOFTFLOAT_H */ diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h new file mode 100644 index 0000000000..0946f0739d --- /dev/null +++ b/include/fpu/softfloat.h @@ -0,0 +1,638 @@ +/* + * QEMU float support + * + * Derived from SoftFloat. + */ + +/*============================================================================ + +This C header file is part of the SoftFloat IEC/IEEE Floating-point Arithmetic +Package, Release 2b. + +Written by John R. Hauser. This work was made possible in part by the +International Computer Science Institute, located at Suite 600, 1947 Center +Street, Berkeley, California 94704. Funding was partially provided by the +National Science Foundation under grant MIP-9311980. The original version +of this code was written as part of a project to build a fixed-point vector +processor in collaboration with the University of California at Berkeley, +overseen by Profs. Nelson Morgan and John Wawrzynek. More information +is available through the Web page `http://www.cs.berkeley.edu/~jhauser/ +arithmetic/SoftFloat.html'. + +THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort has +been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT TIMES +RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO PERSONS +AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ALL LOSSES, +COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE +EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE +INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR +OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE. + +Derivative works are acceptable, even for commercial purposes, so long as +(1) the source code for the derivative work includes prominent notice that +the work is derivative, and (2) the source code includes prominent notice with +these four paragraphs for those parts of this code that are retained. + +=============================================================================*/ + +#ifndef SOFTFLOAT_H +#define SOFTFLOAT_H + +#if defined(CONFIG_SOLARIS) && defined(CONFIG_NEEDS_LIBSUNMATH) +#include +#endif + +#include +#include "config-host.h" +#include "qemu/osdep.h" + +/*---------------------------------------------------------------------------- +| Each of the following `typedef's defines the most convenient type that holds +| integers of at least as many bits as specified. For example, `uint8' should +| be the most convenient type that can hold unsigned integers of as many as +| 8 bits. The `flag' type must be able to hold either a 0 or 1. For most +| implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed +| to the same as `int'. +*----------------------------------------------------------------------------*/ +typedef uint8_t flag; +typedef uint8_t uint8; +typedef int8_t int8; +typedef unsigned int uint32; +typedef signed int int32; +typedef uint64_t uint64; +typedef int64_t int64; + +#define LIT64( a ) a##LL +#define INLINE static inline + +#define STATUS_PARAM , float_status *status +#define STATUS(field) status->field +#define STATUS_VAR , status + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE floating-point ordering relations +*----------------------------------------------------------------------------*/ +enum { + float_relation_less = -1, + float_relation_equal = 0, + float_relation_greater = 1, + float_relation_unordered = 2 +}; + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE floating-point types. +*----------------------------------------------------------------------------*/ +/* Use structures for soft-float types. This prevents accidentally mixing + them with native int/float types. A sufficiently clever compiler and + sane ABI should be able to see though these structs. However + x86/gcc 3.x seems to struggle a bit, so leave them disabled by default. */ +//#define USE_SOFTFLOAT_STRUCT_TYPES +#ifdef USE_SOFTFLOAT_STRUCT_TYPES +typedef struct { + uint16_t v; +} float16; +#define float16_val(x) (((float16)(x)).v) +#define make_float16(x) __extension__ ({ float16 f16_val = {x}; f16_val; }) +#define const_float16(x) { x } +typedef struct { + uint32_t v; +} float32; +/* The cast ensures an error if the wrong type is passed. */ +#define float32_val(x) (((float32)(x)).v) +#define make_float32(x) __extension__ ({ float32 f32_val = {x}; f32_val; }) +#define const_float32(x) { x } +typedef struct { + uint64_t v; +} float64; +#define float64_val(x) (((float64)(x)).v) +#define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; }) +#define const_float64(x) { x } +#else +typedef uint16_t float16; +typedef uint32_t float32; +typedef uint64_t float64; +#define float16_val(x) (x) +#define float32_val(x) (x) +#define float64_val(x) (x) +#define make_float16(x) (x) +#define make_float32(x) (x) +#define make_float64(x) (x) +#define const_float16(x) (x) +#define const_float32(x) (x) +#define const_float64(x) (x) +#endif +typedef struct { + uint64_t low; + uint16_t high; +} floatx80; +#define make_floatx80(exp, mant) ((floatx80) { mant, exp }) +#define make_floatx80_init(exp, mant) { .low = mant, .high = exp } +typedef struct { +#ifdef HOST_WORDS_BIGENDIAN + uint64_t high, low; +#else + uint64_t low, high; +#endif +} float128; +#define make_float128(high_, low_) ((float128) { .high = high_, .low = low_ }) +#define make_float128_init(high_, low_) { .high = high_, .low = low_ } + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE floating-point underflow tininess-detection mode. +*----------------------------------------------------------------------------*/ +enum { + float_tininess_after_rounding = 0, + float_tininess_before_rounding = 1 +}; + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE floating-point rounding mode. +*----------------------------------------------------------------------------*/ +enum { + float_round_nearest_even = 0, + float_round_down = 1, + float_round_up = 2, + float_round_to_zero = 3 +}; + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE floating-point exception flags. +*----------------------------------------------------------------------------*/ +enum { + float_flag_invalid = 1, + float_flag_divbyzero = 4, + float_flag_overflow = 8, + float_flag_underflow = 16, + float_flag_inexact = 32, + float_flag_input_denormal = 64, + float_flag_output_denormal = 128 +}; + +typedef struct float_status { + signed char float_detect_tininess; + signed char float_rounding_mode; + signed char float_exception_flags; + signed char floatx80_rounding_precision; + /* should denormalised results go to zero and set the inexact flag? */ + flag flush_to_zero; + /* should denormalised inputs go to zero and set the input_denormal flag? */ + flag flush_inputs_to_zero; + flag default_nan_mode; +} float_status; + +void set_float_rounding_mode(int val STATUS_PARAM); +void set_float_exception_flags(int val STATUS_PARAM); +INLINE void set_float_detect_tininess(int val STATUS_PARAM) +{ + STATUS(float_detect_tininess) = val; +} +INLINE void set_flush_to_zero(flag val STATUS_PARAM) +{ + STATUS(flush_to_zero) = val; +} +INLINE void set_flush_inputs_to_zero(flag val STATUS_PARAM) +{ + STATUS(flush_inputs_to_zero) = val; +} +INLINE void set_default_nan_mode(flag val STATUS_PARAM) +{ + STATUS(default_nan_mode) = val; +} +INLINE int get_float_exception_flags(float_status *status) +{ + return STATUS(float_exception_flags); +} +void set_floatx80_rounding_precision(int val STATUS_PARAM); + +/*---------------------------------------------------------------------------- +| Routine to raise any or all of the software IEC/IEEE floating-point +| exception flags. +*----------------------------------------------------------------------------*/ +void float_raise( int8 flags STATUS_PARAM); + +/*---------------------------------------------------------------------------- +| Options to indicate which negations to perform in float*_muladd() +| Using these differs from negating an input or output before calling +| the muladd function in that this means that a NaN doesn't have its +| sign bit inverted before it is propagated. +*----------------------------------------------------------------------------*/ +enum { + float_muladd_negate_c = 1, + float_muladd_negate_product = 2, + float_muladd_negate_result = 4, +}; + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE integer-to-floating-point conversion routines. +*----------------------------------------------------------------------------*/ +float32 int32_to_float32( int32 STATUS_PARAM ); +float64 int32_to_float64( int32 STATUS_PARAM ); +float32 uint32_to_float32( uint32 STATUS_PARAM ); +float64 uint32_to_float64( uint32 STATUS_PARAM ); +floatx80 int32_to_floatx80( int32 STATUS_PARAM ); +float128 int32_to_float128( int32 STATUS_PARAM ); +float32 int64_to_float32( int64 STATUS_PARAM ); +float32 uint64_to_float32( uint64 STATUS_PARAM ); +float64 int64_to_float64( int64 STATUS_PARAM ); +float64 uint64_to_float64( uint64 STATUS_PARAM ); +floatx80 int64_to_floatx80( int64 STATUS_PARAM ); +float128 int64_to_float128( int64 STATUS_PARAM ); + +/*---------------------------------------------------------------------------- +| Software half-precision conversion routines. +*----------------------------------------------------------------------------*/ +float16 float32_to_float16( float32, flag STATUS_PARAM ); +float32 float16_to_float32( float16, flag STATUS_PARAM ); + +/*---------------------------------------------------------------------------- +| Software half-precision operations. +*----------------------------------------------------------------------------*/ +int float16_is_quiet_nan( float16 ); +int float16_is_signaling_nan( float16 ); +float16 float16_maybe_silence_nan( float16 ); + +INLINE int float16_is_any_nan(float16 a) +{ + return ((float16_val(a) & ~0x8000) > 0x7c00); +} + +/*---------------------------------------------------------------------------- +| The pattern for a default generated half-precision NaN. +*----------------------------------------------------------------------------*/ +extern const float16 float16_default_nan; + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE single-precision conversion routines. +*----------------------------------------------------------------------------*/ +int_fast16_t float32_to_int16_round_to_zero(float32 STATUS_PARAM); +uint_fast16_t float32_to_uint16_round_to_zero(float32 STATUS_PARAM); +int32 float32_to_int32( float32 STATUS_PARAM ); +int32 float32_to_int32_round_to_zero( float32 STATUS_PARAM ); +uint32 float32_to_uint32( float32 STATUS_PARAM ); +uint32 float32_to_uint32_round_to_zero( float32 STATUS_PARAM ); +int64 float32_to_int64( float32 STATUS_PARAM ); +int64 float32_to_int64_round_to_zero( float32 STATUS_PARAM ); +float64 float32_to_float64( float32 STATUS_PARAM ); +floatx80 float32_to_floatx80( float32 STATUS_PARAM ); +float128 float32_to_float128( float32 STATUS_PARAM ); + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE single-precision operations. +*----------------------------------------------------------------------------*/ +float32 float32_round_to_int( float32 STATUS_PARAM ); +float32 float32_add( float32, float32 STATUS_PARAM ); +float32 float32_sub( float32, float32 STATUS_PARAM ); +float32 float32_mul( float32, float32 STATUS_PARAM ); +float32 float32_div( float32, float32 STATUS_PARAM ); +float32 float32_rem( float32, float32 STATUS_PARAM ); +float32 float32_muladd(float32, float32, float32, int STATUS_PARAM); +float32 float32_sqrt( float32 STATUS_PARAM ); +float32 float32_exp2( float32 STATUS_PARAM ); +float32 float32_log2( float32 STATUS_PARAM ); +int float32_eq( float32, float32 STATUS_PARAM ); +int float32_le( float32, float32 STATUS_PARAM ); +int float32_lt( float32, float32 STATUS_PARAM ); +int float32_unordered( float32, float32 STATUS_PARAM ); +int float32_eq_quiet( float32, float32 STATUS_PARAM ); +int float32_le_quiet( float32, float32 STATUS_PARAM ); +int float32_lt_quiet( float32, float32 STATUS_PARAM ); +int float32_unordered_quiet( float32, float32 STATUS_PARAM ); +int float32_compare( float32, float32 STATUS_PARAM ); +int float32_compare_quiet( float32, float32 STATUS_PARAM ); +float32 float32_min(float32, float32 STATUS_PARAM); +float32 float32_max(float32, float32 STATUS_PARAM); +int float32_is_quiet_nan( float32 ); +int float32_is_signaling_nan( float32 ); +float32 float32_maybe_silence_nan( float32 ); +float32 float32_scalbn( float32, int STATUS_PARAM ); + +INLINE float32 float32_abs(float32 a) +{ + /* Note that abs does *not* handle NaN specially, nor does + * it flush denormal inputs to zero. + */ + return make_float32(float32_val(a) & 0x7fffffff); +} + +INLINE float32 float32_chs(float32 a) +{ + /* Note that chs does *not* handle NaN specially, nor does + * it flush denormal inputs to zero. + */ + return make_float32(float32_val(a) ^ 0x80000000); +} + +INLINE int float32_is_infinity(float32 a) +{ + return (float32_val(a) & 0x7fffffff) == 0x7f800000; +} + +INLINE int float32_is_neg(float32 a) +{ + return float32_val(a) >> 31; +} + +INLINE int float32_is_zero(float32 a) +{ + return (float32_val(a) & 0x7fffffff) == 0; +} + +INLINE int float32_is_any_nan(float32 a) +{ + return ((float32_val(a) & ~(1 << 31)) > 0x7f800000UL); +} + +INLINE int float32_is_zero_or_denormal(float32 a) +{ + return (float32_val(a) & 0x7f800000) == 0; +} + +INLINE float32 float32_set_sign(float32 a, int sign) +{ + return make_float32((float32_val(a) & 0x7fffffff) | (sign << 31)); +} + +#define float32_zero make_float32(0) +#define float32_one make_float32(0x3f800000) +#define float32_ln2 make_float32(0x3f317218) +#define float32_pi make_float32(0x40490fdb) +#define float32_half make_float32(0x3f000000) +#define float32_infinity make_float32(0x7f800000) + + +/*---------------------------------------------------------------------------- +| The pattern for a default generated single-precision NaN. +*----------------------------------------------------------------------------*/ +extern const float32 float32_default_nan; + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE double-precision conversion routines. +*----------------------------------------------------------------------------*/ +int_fast16_t float64_to_int16_round_to_zero(float64 STATUS_PARAM); +uint_fast16_t float64_to_uint16_round_to_zero(float64 STATUS_PARAM); +int32 float64_to_int32( float64 STATUS_PARAM ); +int32 float64_to_int32_round_to_zero( float64 STATUS_PARAM ); +uint32 float64_to_uint32( float64 STATUS_PARAM ); +uint32 float64_to_uint32_round_to_zero( float64 STATUS_PARAM ); +int64 float64_to_int64( float64 STATUS_PARAM ); +int64 float64_to_int64_round_to_zero( float64 STATUS_PARAM ); +uint64 float64_to_uint64 (float64 a STATUS_PARAM); +uint64 float64_to_uint64_round_to_zero (float64 a STATUS_PARAM); +float32 float64_to_float32( float64 STATUS_PARAM ); +floatx80 float64_to_floatx80( float64 STATUS_PARAM ); +float128 float64_to_float128( float64 STATUS_PARAM ); + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE double-precision operations. +*----------------------------------------------------------------------------*/ +float64 float64_round_to_int( float64 STATUS_PARAM ); +float64 float64_trunc_to_int( float64 STATUS_PARAM ); +float64 float64_add( float64, float64 STATUS_PARAM ); +float64 float64_sub( float64, float64 STATUS_PARAM ); +float64 float64_mul( float64, float64 STATUS_PARAM ); +float64 float64_div( float64, float64 STATUS_PARAM ); +float64 float64_rem( float64, float64 STATUS_PARAM ); +float64 float64_muladd(float64, float64, float64, int STATUS_PARAM); +float64 float64_sqrt( float64 STATUS_PARAM ); +float64 float64_log2( float64 STATUS_PARAM ); +int float64_eq( float64, float64 STATUS_PARAM ); +int float64_le( float64, float64 STATUS_PARAM ); +int float64_lt( float64, float64 STATUS_PARAM ); +int float64_unordered( float64, float64 STATUS_PARAM ); +int float64_eq_quiet( float64, float64 STATUS_PARAM ); +int float64_le_quiet( float64, float64 STATUS_PARAM ); +int float64_lt_quiet( float64, float64 STATUS_PARAM ); +int float64_unordered_quiet( float64, float64 STATUS_PARAM ); +int float64_compare( float64, float64 STATUS_PARAM ); +int float64_compare_quiet( float64, float64 STATUS_PARAM ); +float64 float64_min(float64, float64 STATUS_PARAM); +float64 float64_max(float64, float64 STATUS_PARAM); +int float64_is_quiet_nan( float64 a ); +int float64_is_signaling_nan( float64 ); +float64 float64_maybe_silence_nan( float64 ); +float64 float64_scalbn( float64, int STATUS_PARAM ); + +INLINE float64 float64_abs(float64 a) +{ + /* Note that abs does *not* handle NaN specially, nor does + * it flush denormal inputs to zero. + */ + return make_float64(float64_val(a) & 0x7fffffffffffffffLL); +} + +INLINE float64 float64_chs(float64 a) +{ + /* Note that chs does *not* handle NaN specially, nor does + * it flush denormal inputs to zero. + */ + return make_float64(float64_val(a) ^ 0x8000000000000000LL); +} + +INLINE int float64_is_infinity(float64 a) +{ + return (float64_val(a) & 0x7fffffffffffffffLL ) == 0x7ff0000000000000LL; +} + +INLINE int float64_is_neg(float64 a) +{ + return float64_val(a) >> 63; +} + +INLINE int float64_is_zero(float64 a) +{ + return (float64_val(a) & 0x7fffffffffffffffLL) == 0; +} + +INLINE int float64_is_any_nan(float64 a) +{ + return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL); +} + +INLINE int float64_is_zero_or_denormal(float64 a) +{ + return (float64_val(a) & 0x7ff0000000000000LL) == 0; +} + +INLINE float64 float64_set_sign(float64 a, int sign) +{ + return make_float64((float64_val(a) & 0x7fffffffffffffffULL) + | ((int64_t)sign << 63)); +} + +#define float64_zero make_float64(0) +#define float64_one make_float64(0x3ff0000000000000LL) +#define float64_ln2 make_float64(0x3fe62e42fefa39efLL) +#define float64_pi make_float64(0x400921fb54442d18LL) +#define float64_half make_float64(0x3fe0000000000000LL) +#define float64_infinity make_float64(0x7ff0000000000000LL) + +/*---------------------------------------------------------------------------- +| The pattern for a default generated double-precision NaN. +*----------------------------------------------------------------------------*/ +extern const float64 float64_default_nan; + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE extended double-precision conversion routines. +*----------------------------------------------------------------------------*/ +int32 floatx80_to_int32( floatx80 STATUS_PARAM ); +int32 floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM ); +int64 floatx80_to_int64( floatx80 STATUS_PARAM ); +int64 floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM ); +float32 floatx80_to_float32( floatx80 STATUS_PARAM ); +float64 floatx80_to_float64( floatx80 STATUS_PARAM ); +float128 floatx80_to_float128( floatx80 STATUS_PARAM ); + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE extended double-precision operations. +*----------------------------------------------------------------------------*/ +floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM ); +floatx80 floatx80_add( floatx80, floatx80 STATUS_PARAM ); +floatx80 floatx80_sub( floatx80, floatx80 STATUS_PARAM ); +floatx80 floatx80_mul( floatx80, floatx80 STATUS_PARAM ); +floatx80 floatx80_div( floatx80, floatx80 STATUS_PARAM ); +floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM ); +floatx80 floatx80_sqrt( floatx80 STATUS_PARAM ); +int floatx80_eq( floatx80, floatx80 STATUS_PARAM ); +int floatx80_le( floatx80, floatx80 STATUS_PARAM ); +int floatx80_lt( floatx80, floatx80 STATUS_PARAM ); +int floatx80_unordered( floatx80, floatx80 STATUS_PARAM ); +int floatx80_eq_quiet( floatx80, floatx80 STATUS_PARAM ); +int floatx80_le_quiet( floatx80, floatx80 STATUS_PARAM ); +int floatx80_lt_quiet( floatx80, floatx80 STATUS_PARAM ); +int floatx80_unordered_quiet( floatx80, floatx80 STATUS_PARAM ); +int floatx80_compare( floatx80, floatx80 STATUS_PARAM ); +int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM ); +int floatx80_is_quiet_nan( floatx80 ); +int floatx80_is_signaling_nan( floatx80 ); +floatx80 floatx80_maybe_silence_nan( floatx80 ); +floatx80 floatx80_scalbn( floatx80, int STATUS_PARAM ); + +INLINE floatx80 floatx80_abs(floatx80 a) +{ + a.high &= 0x7fff; + return a; +} + +INLINE floatx80 floatx80_chs(floatx80 a) +{ + a.high ^= 0x8000; + return a; +} + +INLINE int floatx80_is_infinity(floatx80 a) +{ + return (a.high & 0x7fff) == 0x7fff && a.low == 0x8000000000000000LL; +} + +INLINE int floatx80_is_neg(floatx80 a) +{ + return a.high >> 15; +} + +INLINE int floatx80_is_zero(floatx80 a) +{ + return (a.high & 0x7fff) == 0 && a.low == 0; +} + +INLINE int floatx80_is_zero_or_denormal(floatx80 a) +{ + return (a.high & 0x7fff) == 0; +} + +INLINE int floatx80_is_any_nan(floatx80 a) +{ + return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1); +} + +#define floatx80_zero make_floatx80(0x0000, 0x0000000000000000LL) +#define floatx80_one make_floatx80(0x3fff, 0x8000000000000000LL) +#define floatx80_ln2 make_floatx80(0x3ffe, 0xb17217f7d1cf79acLL) +#define floatx80_pi make_floatx80(0x4000, 0xc90fdaa22168c235LL) +#define floatx80_half make_floatx80(0x3ffe, 0x8000000000000000LL) +#define floatx80_infinity make_floatx80(0x7fff, 0x8000000000000000LL) + +/*---------------------------------------------------------------------------- +| The pattern for a default generated extended double-precision NaN. +*----------------------------------------------------------------------------*/ +extern const floatx80 floatx80_default_nan; + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE quadruple-precision conversion routines. +*----------------------------------------------------------------------------*/ +int32 float128_to_int32( float128 STATUS_PARAM ); +int32 float128_to_int32_round_to_zero( float128 STATUS_PARAM ); +int64 float128_to_int64( float128 STATUS_PARAM ); +int64 float128_to_int64_round_to_zero( float128 STATUS_PARAM ); +float32 float128_to_float32( float128 STATUS_PARAM ); +float64 float128_to_float64( float128 STATUS_PARAM ); +floatx80 float128_to_floatx80( float128 STATUS_PARAM ); + +/*---------------------------------------------------------------------------- +| Software IEC/IEEE quadruple-precision operations. +*----------------------------------------------------------------------------*/ +float128 float128_round_to_int( float128 STATUS_PARAM ); +float128 float128_add( float128, float128 STATUS_PARAM ); +float128 float128_sub( float128, float128 STATUS_PARAM ); +float128 float128_mul( float128, float128 STATUS_PARAM ); +float128 float128_div( float128, float128 STATUS_PARAM ); +float128 float128_rem( float128, float128 STATUS_PARAM ); +float128 float128_sqrt( float128 STATUS_PARAM ); +int float128_eq( float128, float128 STATUS_PARAM ); +int float128_le( float128, float128 STATUS_PARAM ); +int float128_lt( float128, float128 STATUS_PARAM ); +int float128_unordered( float128, float128 STATUS_PARAM ); +int float128_eq_quiet( float128, float128 STATUS_PARAM ); +int float128_le_quiet( float128, float128 STATUS_PARAM ); +int float128_lt_quiet( float128, float128 STATUS_PARAM ); +int float128_unordered_quiet( float128, float128 STATUS_PARAM ); +int float128_compare( float128, float128 STATUS_PARAM ); +int float128_compare_quiet( float128, float128 STATUS_PARAM ); +int float128_is_quiet_nan( float128 ); +int float128_is_signaling_nan( float128 ); +float128 float128_maybe_silence_nan( float128 ); +float128 float128_scalbn( float128, int STATUS_PARAM ); + +INLINE float128 float128_abs(float128 a) +{ + a.high &= 0x7fffffffffffffffLL; + return a; +} + +INLINE float128 float128_chs(float128 a) +{ + a.high ^= 0x8000000000000000LL; + return a; +} + +INLINE int float128_is_infinity(float128 a) +{ + return (a.high & 0x7fffffffffffffffLL) == 0x7fff000000000000LL && a.low == 0; +} + +INLINE int float128_is_neg(float128 a) +{ + return a.high >> 63; +} + +INLINE int float128_is_zero(float128 a) +{ + return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0; +} + +INLINE int float128_is_zero_or_denormal(float128 a) +{ + return (a.high & 0x7fff000000000000LL) == 0; +} + +INLINE int float128_is_any_nan(float128 a) +{ + return ((a.high >> 48) & 0x7fff) == 0x7fff && + ((a.low != 0) || ((a.high & 0xffffffffffffLL) != 0)); +} + +/*---------------------------------------------------------------------------- +| The pattern for a default generated quadruple-precision NaN. +*----------------------------------------------------------------------------*/ +extern const float128 float128_default_nan; + +#endif /* !SOFTFLOAT_H */ diff --git a/include/qemu/bswap.h b/include/qemu/bswap.h index cc7f84d30f..2006fcd621 100644 --- a/include/qemu/bswap.h +++ b/include/qemu/bswap.h @@ -4,7 +4,7 @@ #include "config-host.h" #include -#include "softfloat.h" +#include "fpu/softfloat.h" #ifdef CONFIG_MACHINE_BSWAP_H #include diff --git a/linux-user/arm/nwfpe/double_cpdo.c b/linux-user/arm/nwfpe/double_cpdo.c index 8e9b28fa68..41c28f3096 100644 --- a/linux-user/arm/nwfpe/double_cpdo.c +++ b/linux-user/arm/nwfpe/double_cpdo.c @@ -19,7 +19,7 @@ */ #include "fpa11.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #include "fpopcode.h" float64 float64_exp(float64 Fm); diff --git a/linux-user/arm/nwfpe/extended_cpdo.c b/linux-user/arm/nwfpe/extended_cpdo.c index 880ce030a5..48eca3b4a6 100644 --- a/linux-user/arm/nwfpe/extended_cpdo.c +++ b/linux-user/arm/nwfpe/extended_cpdo.c @@ -19,7 +19,7 @@ */ #include "fpa11.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #include "fpopcode.h" floatx80 floatx80_exp(floatx80 Fm); diff --git a/linux-user/arm/nwfpe/fpa11.h b/linux-user/arm/nwfpe/fpa11.h index 002b3cbb82..bb9ac6554e 100644 --- a/linux-user/arm/nwfpe/fpa11.h +++ b/linux-user/arm/nwfpe/fpa11.h @@ -43,7 +43,7 @@ extern CPUARMState *user_registers; /* includes */ #include "fpsr.h" /* FP control and status register definitions */ -#include "softfloat.h" +#include "fpu/softfloat.h" #define typeNone 0x00 #define typeSingle 0x01 diff --git a/linux-user/arm/nwfpe/fpa11_cpdt.c b/linux-user/arm/nwfpe/fpa11_cpdt.c index 3e7a938253..007a3d6505 100644 --- a/linux-user/arm/nwfpe/fpa11_cpdt.c +++ b/linux-user/arm/nwfpe/fpa11_cpdt.c @@ -20,7 +20,7 @@ */ #include "fpa11.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #include "fpopcode.h" //#include "fpmodule.h" //#include "fpmodule.inl" diff --git a/linux-user/arm/nwfpe/fpa11_cprt.c b/linux-user/arm/nwfpe/fpa11_cprt.c index 801189798b..7be93fa54f 100644 --- a/linux-user/arm/nwfpe/fpa11_cprt.c +++ b/linux-user/arm/nwfpe/fpa11_cprt.c @@ -20,7 +20,7 @@ */ #include "fpa11.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #include "fpopcode.h" #include "fpa11.inl" //#include "fpmodule.h" diff --git a/linux-user/arm/nwfpe/fpopcode.c b/linux-user/arm/nwfpe/fpopcode.c index 82ac92f0ce..0dc5c9cd5d 100644 --- a/linux-user/arm/nwfpe/fpopcode.c +++ b/linux-user/arm/nwfpe/fpopcode.c @@ -19,7 +19,7 @@ */ #include "fpa11.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #include "fpopcode.h" #include "fpsr.h" //#include "fpmodule.h" diff --git a/linux-user/arm/nwfpe/single_cpdo.c b/linux-user/arm/nwfpe/single_cpdo.c index 26168e2201..2bfb359eb6 100644 --- a/linux-user/arm/nwfpe/single_cpdo.c +++ b/linux-user/arm/nwfpe/single_cpdo.c @@ -19,7 +19,7 @@ */ #include "fpa11.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #include "fpopcode.h" float32 float32_exp(float32 Fm); diff --git a/target-alpha/cpu.h b/target-alpha/cpu.h index 137703f6d7..b75c856f97 100644 --- a/target-alpha/cpu.h +++ b/target-alpha/cpu.h @@ -29,7 +29,7 @@ #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define TARGET_HAS_ICE 1 diff --git a/target-alpha/fpu_helper.c b/target-alpha/fpu_helper.c index fe988ec459..fad3575549 100644 --- a/target-alpha/fpu_helper.c +++ b/target-alpha/fpu_helper.c @@ -19,7 +19,7 @@ #include "cpu.h" #include "helper.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define FP_STATUS (env->fp_status) diff --git a/target-alpha/helper.c b/target-alpha/helper.c index 2430f70aca..22c9c6ec8c 100644 --- a/target-alpha/helper.c +++ b/target-alpha/helper.c @@ -22,7 +22,7 @@ #include #include "cpu.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #include "helper.h" uint64_t cpu_alpha_load_fpcr (CPUAlphaState *env) diff --git a/target-alpha/translate.c b/target-alpha/translate.c index c94126737f..3afc3c63f9 100644 --- a/target-alpha/translate.c +++ b/target-alpha/translate.c @@ -611,7 +611,7 @@ static void gen_qual_roundmode(DisasContext *ctx, int fn11) } #if defined(CONFIG_SOFTFLOAT_INLINE) - /* ??? The "softfloat.h" interface is to call set_float_rounding_mode. + /* ??? The "fpu/softfloat.h" interface is to call set_float_rounding_mode. With CONFIG_SOFTFLOAT that expands to an out-of-line call that just sets the one field. */ tcg_gen_st8_i32(tmp, cpu_env, diff --git a/target-arm/cpu.h b/target-arm/cpu.h index 7f87efa7d9..ffddfcbc0d 100644 --- a/target-arm/cpu.h +++ b/target-arm/cpu.h @@ -29,7 +29,7 @@ #include "qemu-common.h" #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define TARGET_HAS_ICE 1 diff --git a/target-i386/cpu.h b/target-i386/cpu.h index f3f50a0499..0709780356 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -46,7 +46,7 @@ #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define R_EAX 0 #define R_ECX 1 diff --git a/target-m68k/cpu.h b/target-m68k/cpu.h index b37af1fffd..adaf56c471 100644 --- a/target-m68k/cpu.h +++ b/target-m68k/cpu.h @@ -28,7 +28,7 @@ #include "qemu-common.h" #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define MAX_QREGS 32 diff --git a/target-microblaze/cpu.h b/target-microblaze/cpu.h index 5358941ae4..4de22266ef 100644 --- a/target-microblaze/cpu.h +++ b/target-microblaze/cpu.h @@ -27,7 +27,7 @@ #define CPUArchState struct CPUMBState #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" struct CPUMBState; typedef struct CPUMBState CPUMBState; #if !defined(CONFIG_USER_ONLY) diff --git a/target-mips/cpu.h b/target-mips/cpu.h index 183ba9fbd8..31602ac8ed 100644 --- a/target-mips/cpu.h +++ b/target-mips/cpu.h @@ -13,7 +13,7 @@ #include "qemu-common.h" #include "mips-defs.h" #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" struct CPUMIPSState; diff --git a/target-openrisc/cpu.h b/target-openrisc/cpu.h index 876b386a3c..3beab45c3c 100644 --- a/target-openrisc/cpu.h +++ b/target-openrisc/cpu.h @@ -31,7 +31,7 @@ struct OpenRISCCPU; #include "config.h" #include "qemu-common.h" #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #include "qom/cpu.h" #include "qapi/error.h" diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h index 610bcd544b..e88ebe00d4 100644 --- a/target-ppc/cpu.h +++ b/target-ppc/cpu.h @@ -75,7 +75,7 @@ #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define TARGET_HAS_ICE 1 diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h index acb8c73174..dda0b9af66 100644 --- a/target-s390x/cpu.h +++ b/target-s390x/cpu.h @@ -36,7 +36,7 @@ #include "exec/cpu-all.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define NB_MMU_MODES 3 diff --git a/target-sh4/cpu.h b/target-sh4/cpu.h index 7c50c798b8..34e9b0acf7 100644 --- a/target-sh4/cpu.h +++ b/target-sh4/cpu.h @@ -41,7 +41,7 @@ #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define TARGET_PAGE_BITS 12 /* 4k XXXXX */ @@ -230,8 +230,6 @@ static inline void cpu_set_tls(CPUSH4State *env, target_ulong newtls) void cpu_load_tlb(CPUSH4State * env); -#include "softfloat.h" - static inline CPUSH4State *cpu_init(const char *cpu_model) { SuperHCPU *cpu = cpu_sh4_init(cpu_model); diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h index 04b6659909..7389b03514 100644 --- a/target-sparc/cpu.h +++ b/target-sparc/cpu.h @@ -27,7 +27,7 @@ #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define TARGET_HAS_ICE 1 diff --git a/target-unicore32/cpu.h b/target-unicore32/cpu.h index cd8f730756..509ce7c69d 100644 --- a/target-unicore32/cpu.h +++ b/target-unicore32/cpu.h @@ -24,7 +24,7 @@ #include "config.h" #include "qemu-common.h" #include "exec/cpu-defs.h" -#include "softfloat.h" +#include "fpu/softfloat.h" #define NB_MMU_MODES 2