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softfloat: Extend float_exception_flags to 16 bits

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We will shortly have more than 8 bits of exceptions.
Repack the existing flags into low bits and reformat to hex.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211119160502.17432-2-richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Richard Henderson 2021-12-17 17:57:14 +01:00 committed by Cédric Le Goater
parent 9befbe4f62
commit 149a48f6e6
2 changed files with 9 additions and 9 deletions
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16
include/fpu/softfloat-types.h
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@ -145,13 +145,13 @@ typedef enum __attribute__((__packed__)) {
*/ */
enum { enum {
float_flag_invalid = 1, float_flag_invalid = 0x0001,
float_flag_divbyzero = 4, float_flag_divbyzero = 0x0002,
float_flag_overflow = 8, float_flag_overflow = 0x0004,
float_flag_underflow = 16, float_flag_underflow = 0x0008,
float_flag_inexact = 32, float_flag_inexact = 0x0010,
float_flag_input_denormal = 64, float_flag_input_denormal = 0x0020,
float_flag_output_denormal = 128 float_flag_output_denormal = 0x0040,
}; };
/* /*
@ -171,8 +171,8 @@ typedef enum __attribute__((__packed__)) {
*/ */
typedef struct float_status { typedef struct float_status {
uint16_t float_exception_flags;
FloatRoundMode float_rounding_mode; FloatRoundMode float_rounding_mode;
uint8_t float_exception_flags;
FloatX80RoundPrec floatx80_rounding_precision; FloatX80RoundPrec floatx80_rounding_precision;
bool tininess_before_rounding; bool tininess_before_rounding;
/* should denormalised results go to zero and set the inexact flag? */ /* should denormalised results go to zero and set the inexact flag? */

2
include/fpu/softfloat.h
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@ -100,7 +100,7 @@ typedef enum {
| Routine to raise any or all of the software IEC/IEEE floating-point | Routine to raise any or all of the software IEC/IEEE floating-point
| exception flags. | exception flags.
*----------------------------------------------------------------------------*/ *----------------------------------------------------------------------------*/
static inline void float_raise(uint8_t flags, float_status *status) static inline void float_raise(uint16_t flags, float_status *status)
{ {
status->float_exception_flags |= flags; status->float_exception_flags |= flags;
} }