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[Qemu-ppc] [PATCH 2/2] target-mips: Activate IEEE 754-2008 support for M
|
From: |
Aleksandar Markovic |
|
Subject: |
[Qemu-ppc] [PATCH 2/2] target-mips: Activate IEEE 754-2008 support for Mips |
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Date: |
Thu, 7 Apr 2016 18:00:51 +0200 |
From: Aleksandar Markovic <address@hidden>
This patch utilizes provisions from the previous patch, and configures
Mips R6 CPUs and Mips MSA units appropriately with reference to the meaning
of the signaling NaN bit (this is mentioned in point 2 in the list below).
The majority of involved MIPS instructions will be fixed just with that
change. Certain number of other IEEE 754-2008-related MIPS issues are
addressed with this patch as well.
The changes can be summarized this way:
1) Definitions of Mips processors are updated to reflect supported
IEEE-754-2008-related features. (file target-mips/translate_init.c)
2) Functions mips_cpu_reset() and msa_reset() are updated so that flag
snan_bit_is_one is properly set for any Mips configuration.
(file target-mips/translate_init.c)
3) Updated handling of instuctions <ABS|NEG>.<S|D>. Note that legacy
(pre-nan2008) ABS and NEG instructions are arithmetic (any NaN operand
signals invalid operation), while R6 ones are non-arithmetic, always
changing the sign bit, even for NaN-like operands. Details on these
instructions are documented in [1] p. 35 and 359. Affected file is
target-mips/translate.c.
4) New set of helpers for handling nan2008-syle versions of instructions
<CEIL|CVT|FLOOR|ROUND|TRUNC>.<L|W>.<S|D>. Details on these instructions
are presented in [1] p. 129, 130, 149, 155, 222, 223, 393, 394, 504,
505. Affected files are target-mips/helper.h, target-mips/translate.c,
and target-mips/op-helper.c.
[1] "MIPS® Architecture For Programmers Volume II-A:
The MIPS64® Instruction Set Reference Manual",
Imagination Technologies LTD, Revision 6.04, November 13, 2015
[2] "MIPS Architecture for Programmers Volume IV-j:
The MIPS32® SIMD Architecture Module",
Imagination Technologies LTD, Revision 1.12, February 3, 2016
Signed-off-by: Maciej Rozycki <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
---
target-mips/helper.h | 18 ++-
target-mips/op_helper.c | 334 +++++++++++++++++++++++++++++++++++++++---
target-mips/translate.c | 154 +++++++++++++++----
target-mips/translate_init.c | 17 ++-
4 files changed, 467 insertions(+), 56 deletions(-)
diff --git a/target-mips/helper.h b/target-mips/helper.h
index 133dcfb..61bbda7 100644
--- a/target-mips/helper.h
+++ b/target-mips/helper.h
@@ -207,8 +207,6 @@ DEF_HELPER_4(ctc1, void, env, tl, i32, i32)
DEF_HELPER_2(float_cvtd_s, i64, env, i32)
DEF_HELPER_2(float_cvtd_w, i64, env, i32)
DEF_HELPER_2(float_cvtd_l, i64, env, i64)
-DEF_HELPER_2(float_cvtl_d, i64, env, i64)
-DEF_HELPER_2(float_cvtl_s, i64, env, i32)
DEF_HELPER_2(float_cvtps_pw, i64, env, i64)
DEF_HELPER_2(float_cvtpw_ps, i64, env, i64)
DEF_HELPER_2(float_cvts_d, i32, env, i64)
@@ -216,8 +214,6 @@ DEF_HELPER_2(float_cvts_w, i32, env, i32)
DEF_HELPER_2(float_cvts_l, i32, env, i64)
DEF_HELPER_2(float_cvts_pl, i32, env, i32)
DEF_HELPER_2(float_cvts_pu, i32, env, i32)
-DEF_HELPER_2(float_cvtw_s, i32, env, i32)
-DEF_HELPER_2(float_cvtw_d, i32, env, i64)
DEF_HELPER_3(float_addr_ps, i64, env, i64, i64)
DEF_HELPER_3(float_mulr_ps, i64, env, i64, i64)
@@ -242,14 +238,20 @@ FOP_PROTO(mina)
#undef FOP_PROTO
#define FOP_PROTO(op) \
-DEF_HELPER_2(float_ ## op ## l_s, i64, env, i32) \
-DEF_HELPER_2(float_ ## op ## l_d, i64, env, i64) \
-DEF_HELPER_2(float_ ## op ## w_s, i32, env, i32) \
-DEF_HELPER_2(float_ ## op ## w_d, i32, env, i64)
+DEF_HELPER_2(float_ ## op ## _l_s, i64, env, i32) \
+DEF_HELPER_2(float_ ## op ## _l_d, i64, env, i64) \
+DEF_HELPER_2(float_ ## op ## _w_s, i32, env, i32) \
+DEF_HELPER_2(float_ ## op ## _w_d, i32, env, i64)
+FOP_PROTO(cvt)
FOP_PROTO(round)
FOP_PROTO(trunc)
FOP_PROTO(ceil)
FOP_PROTO(floor)
+FOP_PROTO(cvt_2008)
+FOP_PROTO(round_2008)
+FOP_PROTO(trunc_2008)
+FOP_PROTO(ceil_2008)
+FOP_PROTO(floor_2008)
#undef FOP_PROTO
#define FOP_PROTO(op) \
diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index ce7ec9c..841f066 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -2448,9 +2448,19 @@ void mips_cpu_unassigned_access(CPUState *cs, hwaddr
addr,
#define FLOAT_TWO32 make_float32(1 << 30)
#define FLOAT_TWO64 make_float64(1ULL << 62)
+
#define FP_TO_INT32_OVERFLOW 0x7fffffff
#define FP_TO_INT64_OVERFLOW 0x7fffffffffffffffULL
+#define FLT_TO_INT32_OVERFLOW(x) \
+ float32_is_any_nan(x) ? 0 : (float32_is_neg(x) ? INT32_MIN : INT32_MAX)
+#define FLT_TO_INT64_OVERFLOW(x) \
+ float32_is_any_nan(x) ? 0 : (float32_is_neg(x) ? INT64_MIN : INT64_MAX)
+#define DBL_TO_INT32_OVERFLOW(x) \
+ float64_is_any_nan(x) ? 0 : (float64_is_neg(x) ? INT32_MIN : INT32_MAX)
+#define DBL_TO_INT64_OVERFLOW(x) \
+ float64_is_any_nan(x) ? 0 : (float64_is_neg(x) ? INT64_MIN : INT64_MAX)
+
/* convert MIPS rounding mode in FCR31 to IEEE library */
unsigned int ieee_rm[] = {
float_round_nearest_even,
@@ -2683,7 +2693,7 @@ uint64_t helper_float_cvtd_l(CPUMIPSState *env, uint64_t
dt0)
return fdt2;
}
-uint64_t helper_float_cvtl_d(CPUMIPSState *env, uint64_t fdt0)
+uint64_t helper_float_cvt_l_d(CPUMIPSState *env, uint64_t fdt0)
{
uint64_t dt2;
@@ -2696,7 +2706,7 @@ uint64_t helper_float_cvtl_d(CPUMIPSState *env, uint64_t
fdt0)
return dt2;
}
-uint64_t helper_float_cvtl_s(CPUMIPSState *env, uint32_t fst0)
+uint64_t helper_float_cvt_l_s(CPUMIPSState *env, uint32_t fst0)
{
uint64_t dt2;
@@ -2791,7 +2801,7 @@ uint32_t helper_float_cvts_pu(CPUMIPSState *env, uint32_t
wth0)
return wt2;
}
-uint32_t helper_float_cvtw_s(CPUMIPSState *env, uint32_t fst0)
+uint32_t helper_float_cvt_w_s(CPUMIPSState *env, uint32_t fst0)
{
uint32_t wt2;
@@ -2804,7 +2814,7 @@ uint32_t helper_float_cvtw_s(CPUMIPSState *env, uint32_t
fst0)
return wt2;
}
-uint32_t helper_float_cvtw_d(CPUMIPSState *env, uint64_t fdt0)
+uint32_t helper_float_cvt_w_d(CPUMIPSState *env, uint64_t fdt0)
{
uint32_t wt2;
@@ -2817,7 +2827,7 @@ uint32_t helper_float_cvtw_d(CPUMIPSState *env, uint64_t
fdt0)
return wt2;
}
-uint64_t helper_float_roundl_d(CPUMIPSState *env, uint64_t fdt0)
+uint64_t helper_float_round_l_d(CPUMIPSState *env, uint64_t fdt0)
{
uint64_t dt2;
@@ -2832,7 +2842,7 @@ uint64_t helper_float_roundl_d(CPUMIPSState *env,
uint64_t fdt0)
return dt2;
}
-uint64_t helper_float_roundl_s(CPUMIPSState *env, uint32_t fst0)
+uint64_t helper_float_round_l_s(CPUMIPSState *env, uint32_t fst0)
{
uint64_t dt2;
@@ -2847,7 +2857,7 @@ uint64_t helper_float_roundl_s(CPUMIPSState *env,
uint32_t fst0)
return dt2;
}
-uint32_t helper_float_roundw_d(CPUMIPSState *env, uint64_t fdt0)
+uint32_t helper_float_round_w_d(CPUMIPSState *env, uint64_t fdt0)
{
uint32_t wt2;
@@ -2862,7 +2872,7 @@ uint32_t helper_float_roundw_d(CPUMIPSState *env,
uint64_t fdt0)
return wt2;
}
-uint32_t helper_float_roundw_s(CPUMIPSState *env, uint32_t fst0)
+uint32_t helper_float_round_w_s(CPUMIPSState *env, uint32_t fst0)
{
uint32_t wt2;
@@ -2877,7 +2887,7 @@ uint32_t helper_float_roundw_s(CPUMIPSState *env,
uint32_t fst0)
return wt2;
}
-uint64_t helper_float_truncl_d(CPUMIPSState *env, uint64_t fdt0)
+uint64_t helper_float_trunc_l_d(CPUMIPSState *env, uint64_t fdt0)
{
uint64_t dt2;
@@ -2890,7 +2900,7 @@ uint64_t helper_float_truncl_d(CPUMIPSState *env,
uint64_t fdt0)
return dt2;
}
-uint64_t helper_float_truncl_s(CPUMIPSState *env, uint32_t fst0)
+uint64_t helper_float_trunc_l_s(CPUMIPSState *env, uint32_t fst0)
{
uint64_t dt2;
@@ -2903,7 +2913,7 @@ uint64_t helper_float_truncl_s(CPUMIPSState *env,
uint32_t fst0)
return dt2;
}
-uint32_t helper_float_truncw_d(CPUMIPSState *env, uint64_t fdt0)
+uint32_t helper_float_trunc_w_d(CPUMIPSState *env, uint64_t fdt0)
{
uint32_t wt2;
@@ -2916,7 +2926,7 @@ uint32_t helper_float_truncw_d(CPUMIPSState *env,
uint64_t fdt0)
return wt2;
}
-uint32_t helper_float_truncw_s(CPUMIPSState *env, uint32_t fst0)
+uint32_t helper_float_trunc_w_s(CPUMIPSState *env, uint32_t fst0)
{
uint32_t wt2;
@@ -2929,7 +2939,7 @@ uint32_t helper_float_truncw_s(CPUMIPSState *env,
uint32_t fst0)
return wt2;
}
-uint64_t helper_float_ceill_d(CPUMIPSState *env, uint64_t fdt0)
+uint64_t helper_float_ceil_l_d(CPUMIPSState *env, uint64_t fdt0)
{
uint64_t dt2;
@@ -2944,7 +2954,7 @@ uint64_t helper_float_ceill_d(CPUMIPSState *env, uint64_t
fdt0)
return dt2;
}
-uint64_t helper_float_ceill_s(CPUMIPSState *env, uint32_t fst0)
+uint64_t helper_float_ceil_l_s(CPUMIPSState *env, uint32_t fst0)
{
uint64_t dt2;
@@ -2959,7 +2969,7 @@ uint64_t helper_float_ceill_s(CPUMIPSState *env, uint32_t
fst0)
return dt2;
}
-uint32_t helper_float_ceilw_d(CPUMIPSState *env, uint64_t fdt0)
+uint32_t helper_float_ceil_w_d(CPUMIPSState *env, uint64_t fdt0)
{
uint32_t wt2;
@@ -2974,7 +2984,7 @@ uint32_t helper_float_ceilw_d(CPUMIPSState *env, uint64_t
fdt0)
return wt2;
}
-uint32_t helper_float_ceilw_s(CPUMIPSState *env, uint32_t fst0)
+uint32_t helper_float_ceil_w_s(CPUMIPSState *env, uint32_t fst0)
{
uint32_t wt2;
@@ -2989,7 +2999,7 @@ uint32_t helper_float_ceilw_s(CPUMIPSState *env, uint32_t
fst0)
return wt2;
}
-uint64_t helper_float_floorl_d(CPUMIPSState *env, uint64_t fdt0)
+uint64_t helper_float_floor_l_d(CPUMIPSState *env, uint64_t fdt0)
{
uint64_t dt2;
@@ -3004,7 +3014,7 @@ uint64_t helper_float_floorl_d(CPUMIPSState *env,
uint64_t fdt0)
return dt2;
}
-uint64_t helper_float_floorl_s(CPUMIPSState *env, uint32_t fst0)
+uint64_t helper_float_floor_l_s(CPUMIPSState *env, uint32_t fst0)
{
uint64_t dt2;
@@ -3019,7 +3029,7 @@ uint64_t helper_float_floorl_s(CPUMIPSState *env,
uint32_t fst0)
return dt2;
}
-uint32_t helper_float_floorw_d(CPUMIPSState *env, uint64_t fdt0)
+uint32_t helper_float_floor_w_d(CPUMIPSState *env, uint64_t fdt0)
{
uint32_t wt2;
@@ -3034,7 +3044,7 @@ uint32_t helper_float_floorw_d(CPUMIPSState *env,
uint64_t fdt0)
return wt2;
}
-uint32_t helper_float_floorw_s(CPUMIPSState *env, uint32_t fst0)
+uint32_t helper_float_floor_w_s(CPUMIPSState *env, uint32_t fst0)
{
uint32_t wt2;
@@ -3049,6 +3059,290 @@ uint32_t helper_float_floorw_s(CPUMIPSState *env,
uint32_t fst0)
return wt2;
}
+uint64_t helper_float_cvt_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint64_t dt2;
+
+ dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = DBL_TO_INT64_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint64_t helper_float_cvt_2008_l_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint64_t dt2;
+
+ dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = FLT_TO_INT64_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint32_t helper_float_cvt_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint32_t wt2;
+
+ wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = DBL_TO_INT32_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint32_t helper_float_cvt_2008_w_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint32_t wt2;
+
+ wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = FLT_TO_INT32_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint64_t helper_float_round_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint64_t dt2;
+
+ set_float_rounding_mode(float_round_nearest_even,
&env->active_fpu.fp_status);
+ dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = DBL_TO_INT64_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint64_t helper_float_round_2008_l_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint64_t dt2;
+
+ set_float_rounding_mode(float_round_nearest_even,
&env->active_fpu.fp_status);
+ dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = FLT_TO_INT64_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint32_t helper_float_round_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint32_t wt2;
+
+ set_float_rounding_mode(float_round_nearest_even,
&env->active_fpu.fp_status);
+ wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = DBL_TO_INT32_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint32_t helper_float_round_2008_w_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint32_t wt2;
+
+ set_float_rounding_mode(float_round_nearest_even,
&env->active_fpu.fp_status);
+ wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = FLT_TO_INT32_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint64_t helper_float_trunc_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint64_t dt2;
+
+ dt2 = float64_to_int64_round_to_zero(fdt0, &env->active_fpu.fp_status);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = DBL_TO_INT64_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint64_t helper_float_trunc_2008_l_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint64_t dt2;
+
+ dt2 = float32_to_int64_round_to_zero(fst0, &env->active_fpu.fp_status);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = FLT_TO_INT64_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint32_t helper_float_trunc_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint32_t wt2;
+
+ wt2 = float64_to_int32_round_to_zero(fdt0, &env->active_fpu.fp_status);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = DBL_TO_INT32_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint32_t helper_float_trunc_2008_w_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint32_t wt2;
+
+ wt2 = float32_to_int32_round_to_zero(fst0, &env->active_fpu.fp_status);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = FLT_TO_INT32_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint64_t helper_float_ceil_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint64_t dt2;
+
+ set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
+ dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = DBL_TO_INT64_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint64_t helper_float_ceil_2008_l_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint64_t dt2;
+
+ set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
+ dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = FLT_TO_INT64_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint32_t helper_float_ceil_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint32_t wt2;
+
+ set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
+ wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = DBL_TO_INT32_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint32_t helper_float_ceil_2008_w_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint32_t wt2;
+
+ set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
+ wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = FLT_TO_INT32_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint64_t helper_float_floor_2008_l_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint64_t dt2;
+
+ set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
+ dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = DBL_TO_INT64_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint64_t helper_float_floor_2008_l_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint64_t dt2;
+
+ set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
+ dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ dt2 = FLT_TO_INT64_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return dt2;
+}
+
+uint32_t helper_float_floor_2008_w_d(CPUMIPSState *env, uint64_t fdt0)
+{
+ uint32_t wt2;
+
+ set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
+ wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = DBL_TO_INT32_OVERFLOW(fdt0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
+uint32_t helper_float_floor_2008_w_s(CPUMIPSState *env, uint32_t fst0)
+{
+ uint32_t wt2;
+
+ set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
+ wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
+ restore_rounding_mode(env);
+ if (get_float_exception_flags(&env->active_fpu.fp_status)
+ & (float_flag_invalid | float_flag_overflow)) {
+ wt2 = FLT_TO_INT32_OVERFLOW(fst0);
+ }
+ update_fcr31(env, GETPC());
+ return wt2;
+}
+
/* unary operations, not modifying fp status */
#define FLOAT_UNOP(name) \
uint64_t helper_float_ ## name ## _d(uint64_t fdt0) \
diff --git a/target-mips/translate.c b/target-mips/translate.c
index 496216d..9f921aa 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -1434,6 +1434,8 @@ typedef struct DisasContext {
bool vp;
bool cmgcr;
bool mrp;
+ bool nan2008;
+ bool abs2008;
} DisasContext;
enum {
@@ -8879,7 +8881,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(ctx, fp0, fs);
- gen_helper_float_abs_s(fp0, fp0);
+ if (ctx->abs2008) {
+ tcg_gen_andi_i32(fp0, fp0, 0x7fffffffUL);
+ } else {
+ gen_helper_float_abs_s(fp0, fp0);
+ }
gen_store_fpr32(ctx, fp0, fd);
tcg_temp_free_i32(fp0);
}
@@ -8898,7 +8904,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(ctx, fp0, fs);
- gen_helper_float_chs_s(fp0, fp0);
+ if (ctx->abs2008) {
+ tcg_gen_xori_i32(fp0, fp0, 1UL << 31);
+ } else {
+ gen_helper_float_chs_s(fp0, fp0);
+ }
gen_store_fpr32(ctx, fp0, fd);
tcg_temp_free_i32(fp0);
}
@@ -8910,7 +8920,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(ctx, fp32, fs);
- gen_helper_float_roundl_s(fp64, cpu_env, fp32);
+ if (ctx->nan2008) {
+ gen_helper_float_round_2008_l_s(fp64, cpu_env, fp32);
+ } else {
+ gen_helper_float_round_l_s(fp64, cpu_env, fp32);
+ }
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
@@ -8923,7 +8937,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(ctx, fp32, fs);
- gen_helper_float_truncl_s(fp64, cpu_env, fp32);
+ if (ctx->nan2008) {
+ gen_helper_float_trunc_2008_l_s(fp64, cpu_env, fp32);
+ } else {
+ gen_helper_float_trunc_l_s(fp64, cpu_env, fp32);
+ }
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
@@ -8936,7 +8954,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(ctx, fp32, fs);
- gen_helper_float_ceill_s(fp64, cpu_env, fp32);
+ if (ctx->nan2008) {
+ gen_helper_float_ceil_2008_l_s(fp64, cpu_env, fp32);
+ } else {
+ gen_helper_float_ceil_l_s(fp64, cpu_env, fp32);
+ }
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
@@ -8949,7 +8971,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(ctx, fp32, fs);
- gen_helper_float_floorl_s(fp64, cpu_env, fp32);
+ if (ctx->nan2008) {
+ gen_helper_float_floor_2008_l_s(fp64, cpu_env, fp32);
+ } else {
+ gen_helper_float_floor_l_s(fp64, cpu_env, fp32);
+ }
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
@@ -8960,7 +8986,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(ctx, fp0, fs);
- gen_helper_float_roundw_s(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_round_2008_w_s(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_round_w_s(fp0, cpu_env, fp0);
+ }
gen_store_fpr32(ctx, fp0, fd);
tcg_temp_free_i32(fp0);
}
@@ -8970,7 +9000,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(ctx, fp0, fs);
- gen_helper_float_truncw_s(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_trunc_2008_w_s(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_trunc_w_s(fp0, cpu_env, fp0);
+ }
gen_store_fpr32(ctx, fp0, fd);
tcg_temp_free_i32(fp0);
}
@@ -8980,7 +9014,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(ctx, fp0, fs);
- gen_helper_float_ceilw_s(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_ceil_2008_w_s(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_ceil_w_s(fp0, cpu_env, fp0);
+ }
gen_store_fpr32(ctx, fp0, fd);
tcg_temp_free_i32(fp0);
}
@@ -8990,7 +9028,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(ctx, fp0, fs);
- gen_helper_float_floorw_s(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_floor_2008_w_s(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_floor_w_s(fp0, cpu_env, fp0);
+ }
gen_store_fpr32(ctx, fp0, fd);
tcg_temp_free_i32(fp0);
}
@@ -9239,7 +9281,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i32 fp0 = tcg_temp_new_i32();
gen_load_fpr32(ctx, fp0, fs);
- gen_helper_float_cvtw_s(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_cvt_2008_w_s(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_cvt_w_s(fp0, cpu_env, fp0);
+ }
gen_store_fpr32(ctx, fp0, fd);
tcg_temp_free_i32(fp0);
}
@@ -9251,7 +9297,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr32(ctx, fp32, fs);
- gen_helper_float_cvtl_s(fp64, cpu_env, fp32);
+ if (ctx->nan2008) {
+ gen_helper_float_cvt_2008_l_s(fp64, cpu_env, fp32);
+ } else {
+ gen_helper_float_cvt_l_s(fp64, cpu_env, fp32);
+ }
tcg_temp_free_i32(fp32);
gen_store_fpr64(ctx, fp64, fd);
tcg_temp_free_i64(fp64);
@@ -9369,7 +9419,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
- gen_helper_float_abs_d(fp0, fp0);
+ if (ctx->abs2008) {
+ tcg_gen_andi_i64(fp0, fp0, 0x7fffffffffffffffULL);
+ } else {
+ gen_helper_float_abs_d(fp0, fp0);
+ }
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
@@ -9390,7 +9444,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
- gen_helper_float_chs_d(fp0, fp0);
+ if (ctx->abs2008) {
+ tcg_gen_xori_i64(fp0, fp0, 1ULL << 63);
+ } else {
+ gen_helper_float_chs_d(fp0, fp0);
+ }
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
@@ -9401,7 +9459,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
- gen_helper_float_roundl_d(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_round_2008_l_d(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_round_l_d(fp0, cpu_env, fp0);
+ }
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
@@ -9412,7 +9474,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
- gen_helper_float_truncl_d(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_trunc_2008_l_d(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_trunc_l_d(fp0, cpu_env, fp0);
+ }
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
@@ -9423,7 +9489,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
- gen_helper_float_ceill_d(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_ceil_2008_l_d(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_ceil_l_d(fp0, cpu_env, fp0);
+ }
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
@@ -9434,7 +9504,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
- gen_helper_float_floorl_d(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_floor_2008_l_d(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_floor_l_d(fp0, cpu_env, fp0);
+ }
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
@@ -9446,7 +9520,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
- gen_helper_float_roundw_d(fp32, cpu_env, fp64);
+ if (ctx->nan2008) {
+ gen_helper_float_round_2008_w_d(fp32, cpu_env, fp64);
+ } else {
+ gen_helper_float_round_w_d(fp32, cpu_env, fp64);
+ }
tcg_temp_free_i64(fp64);
gen_store_fpr32(ctx, fp32, fd);
tcg_temp_free_i32(fp32);
@@ -9459,7 +9537,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
- gen_helper_float_truncw_d(fp32, cpu_env, fp64);
+ if (ctx->nan2008) {
+ gen_helper_float_trunc_2008_w_d(fp32, cpu_env, fp64);
+ } else {
+ gen_helper_float_trunc_w_d(fp32, cpu_env, fp64);
+ }
tcg_temp_free_i64(fp64);
gen_store_fpr32(ctx, fp32, fd);
tcg_temp_free_i32(fp32);
@@ -9472,7 +9554,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
- gen_helper_float_ceilw_d(fp32, cpu_env, fp64);
+ if (ctx->nan2008) {
+ gen_helper_float_ceil_2008_w_d(fp32, cpu_env, fp64);
+ } else {
+ gen_helper_float_ceil_w_d(fp32, cpu_env, fp64);
+ }
tcg_temp_free_i64(fp64);
gen_store_fpr32(ctx, fp32, fd);
tcg_temp_free_i32(fp32);
@@ -9485,7 +9571,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
- gen_helper_float_floorw_d(fp32, cpu_env, fp64);
+ if (ctx->nan2008) {
+ gen_helper_float_floor_2008_w_d(fp32, cpu_env, fp64);
+ } else {
+ gen_helper_float_floor_w_d(fp32, cpu_env, fp64);
+ }
tcg_temp_free_i64(fp64);
gen_store_fpr32(ctx, fp32, fd);
tcg_temp_free_i32(fp32);
@@ -9758,7 +9848,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp64 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp64, fs);
- gen_helper_float_cvtw_d(fp32, cpu_env, fp64);
+ if (ctx->nan2008) {
+ gen_helper_float_cvt_2008_w_d(fp32, cpu_env, fp64);
+ } else {
+ gen_helper_float_cvt_w_d(fp32, cpu_env, fp64);
+ }
tcg_temp_free_i64(fp64);
gen_store_fpr32(ctx, fp32, fd);
tcg_temp_free_i32(fp32);
@@ -9770,7 +9864,11 @@ static void gen_farith (DisasContext *ctx, enum fopcode
op1,
TCGv_i64 fp0 = tcg_temp_new_i64();
gen_load_fpr64(ctx, fp0, fs);
- gen_helper_float_cvtl_d(fp0, cpu_env, fp0);
+ if (ctx->nan2008) {
+ gen_helper_float_cvt_2008_l_d(fp0, cpu_env, fp0);
+ } else {
+ gen_helper_float_cvt_l_d(fp0, cpu_env, fp0);
+ }
gen_store_fpr64(ctx, fp0, fd);
tcg_temp_free_i64(fp0);
}
@@ -19775,6 +19873,8 @@ void gen_intermediate_code(CPUMIPSState *env, struct
TranslationBlock *tb)
(env->insn_flags & (INSN_LOONGSON2E | INSN_LOONGSON2F));
ctx.vp = (env->CP0_Config5 >> CP0C5_VP) & 1;
ctx.mrp = (env->CP0_Config5 >> CP0C5_MRP) & 1;
+ ctx.nan2008 = (env->active_fpu.fcr31 >> FCR31_NAN2008) & 1;
+ ctx.abs2008 = (env->active_fpu.fcr31 >> FCR31_ABS2008) & 1;
restore_cpu_state(env, &ctx);
#ifdef CONFIG_USER_ONLY
ctx.mem_idx = MIPS_HFLAG_UM;
@@ -20129,7 +20229,11 @@ void cpu_state_reset(CPUMIPSState *env)
env->CP0_PageGrain = env->cpu_model->CP0_PageGrain;
env->active_fpu.fcr0 = env->cpu_model->CP1_fcr0;
env->active_fpu.fcr31 = env->cpu_model->CP1_fcr31;
- set_snan_bit_is_one(1, &env->active_fpu.fp_status);
+ if ((env->active_fpu.fcr31 >> FCR31_NAN2008) & 1) {
+ set_snan_bit_is_one(0, &env->active_fpu.fp_status);
+ } else {
+ set_snan_bit_is_one(1, &env->active_fpu.fp_status);
+ }
env->msair = env->cpu_model->MSAIR;
env->insn_flags = env->cpu_model->insn_flags;
diff --git a/target-mips/translate_init.c b/target-mips/translate_init.c
index c650dd0..a2404c6 100644
--- a/target-mips/translate_init.c
+++ b/target-mips/translate_init.c
@@ -273,6 +273,7 @@ static const mips_def_t mips_defs[] =
.CP0_Status_rw_bitmask = 0x3678FF1F,
.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
(1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID),
+ .CP1_fcr31 = 0,
.SEGBITS = 32,
.PABITS = 32,
.insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
@@ -303,6 +304,7 @@ static const mips_def_t mips_defs[] =
(0xff << CP0TCSt_TASID),
.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
(1 << FCR0_D) | (1 << FCR0_S) | (0x95 << FCR0_PRID),
+ .CP1_fcr31 = 0,
.CP0_SRSCtl = (0xf << CP0SRSCtl_HSS),
.CP0_SRSConf0_rw_bitmask = 0x3fffffff,
.CP0_SRSConf0 = (1U << CP0SRSC0_M) | (0x3fe << CP0SRSC0_SRS3) |
@@ -343,6 +345,7 @@ static const mips_def_t mips_defs[] =
.CP0_Status_rw_bitmask = 0x3778FF1F,
.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
(1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID),
+ .CP1_fcr31 = 0,
.SEGBITS = 32,
.PABITS = 32,
.insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_DSPR2,
@@ -434,7 +437,7 @@ static const mips_def_t mips_defs[] =
},
{
/* A generic CPU supporting MIPS32 Release 6 ISA.
- FIXME: Support IEEE 754-2008 FP.
+ FIXME: Complete support for IEEE 754-2008 FP.
Eventually this should be replaced by a real CPU model. */
.name = "mips32r6-generic",
.CP0_PRid = 0x00010000,
@@ -485,6 +488,7 @@ static const mips_def_t mips_defs[] =
.CP0_Status_rw_bitmask = 0x3678FFFF,
/* The R4000 has a full 64bit FPU but doesn't use the fcr0 bits. */
.CP1_fcr0 = (0x5 << FCR0_PRID) | (0x0 << FCR0_REV),
+ .CP1_fcr31 = 0,
.SEGBITS = 40,
.PABITS = 36,
.insn_flags = CPU_MIPS3,
@@ -503,6 +507,7 @@ static const mips_def_t mips_defs[] =
.CP0_Status_rw_bitmask = 0x3678FFFF,
/* The VR5432 has a full 64bit FPU but doesn't use the fcr0 bits. */
.CP1_fcr0 = (0x54 << FCR0_PRID) | (0x0 << FCR0_REV),
+ .CP1_fcr31 = 0,
.SEGBITS = 40,
.PABITS = 32,
.insn_flags = CPU_VR54XX,
@@ -548,6 +553,7 @@ static const mips_def_t mips_defs[] =
/* The 5Kf has F64 / L / W but doesn't use the fcr0 bits. */
.CP1_fcr0 = (1 << FCR0_D) | (1 << FCR0_S) |
(0x81 << FCR0_PRID) | (0x0 << FCR0_REV),
+ .CP1_fcr31 = 0,
.SEGBITS = 42,
.PABITS = 36,
.insn_flags = CPU_MIPS64,
@@ -575,6 +581,7 @@ static const mips_def_t mips_defs[] =
.CP1_fcr0 = (1 << FCR0_3D) | (1 << FCR0_PS) |
(1 << FCR0_D) | (1 << FCR0_S) |
(0x82 << FCR0_PRID) | (0x0 << FCR0_REV),
+ .CP1_fcr31 = 0,
.SEGBITS = 40,
.PABITS = 36,
.insn_flags = CPU_MIPS64 | ASE_MIPS3D,
@@ -601,6 +608,7 @@ static const mips_def_t mips_defs[] =
.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) |
(1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
(1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
+ .CP1_fcr31 = 0,
.SEGBITS = 42,
.PABITS = 36,
.insn_flags = CPU_MIPS64R2 | ASE_MIPS3D,
@@ -653,7 +661,7 @@ static const mips_def_t mips_defs[] =
},
{
/* A generic CPU supporting MIPS64 Release 6 ISA.
- FIXME: Support IEEE 754-2008 FP.
+ FIXME: Complete support for IEEE 754-2008 FP.
Eventually this should be replaced by a real CPU model. */
.name = "MIPS64R6-generic",
.CP0_PRid = 0x00010000,
@@ -704,6 +712,7 @@ static const mips_def_t mips_defs[] =
.CCRes = 2,
.CP0_Status_rw_bitmask = 0x35D0FFFF,
.CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV),
+ .CP1_fcr31 = 0,
.SEGBITS = 40,
.PABITS = 40,
.insn_flags = CPU_LOONGSON2E,
@@ -722,6 +731,7 @@ static const mips_def_t mips_defs[] =
.CCRes = 2,
.CP0_Status_rw_bitmask = 0xF5D0FF1F, /* Bits 7:5 not writable. */
.CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV),
+ .CP1_fcr31 = 0,
.SEGBITS = 40,
.PABITS = 40,
.insn_flags = CPU_LOONGSON2F,
@@ -749,6 +759,7 @@ static const mips_def_t mips_defs[] =
.CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) |
(1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
(1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
+ .CP1_fcr31 = 0,
.SEGBITS = 42,
.PABITS = 36,
.insn_flags = CPU_MIPS64R2 | ASE_DSP | ASE_DSPR2,
@@ -894,5 +905,5 @@ static void msa_reset(CPUMIPSState *env)
/* clear float_status nan mode */
set_default_nan_mode(0, &env->active_tc.msa_fp_status);
- set_snan_bit_is_one(1, &env->active_tc.msa_fp_status);
+ set_snan_bit_is_one(0, &env->active_tc.msa_fp_status);
}
--
1.7.9.5