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-rw-r--r--target-mips/translate_init.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/target-mips/translate_init.c b/target-mips/translate_init.c
index 5af077d0de..b10284cc5d 100644
--- a/target-mips/translate_init.c
+++ b/target-mips/translate_init.c
@@ -84,6 +84,7 @@ struct mips_def_t {
     int32_t CP0_TCStatus_rw_bitmask;
     int32_t CP0_SRSCtl;
     int32_t CP1_fcr0;
+    int32_t CP1_fcr31_rw_bitmask;
     int32_t CP1_fcr31;
     int32_t MSAIR;
     int32_t SEGBITS;
@@ -273,6 +274,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 32,
         .PABITS = 32,
         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
@@ -303,6 +306,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .CP0_SRSCtl = (0xf << CP0SRSCtl_HSS),
         .CP0_SRSConf0_rw_bitmask = 0x3fffffff,
         .CP0_SRSConf0 = (1U << CP0SRSC0_M) | (0x3fe << CP0SRSC0_SRS3) |
@@ -343,6 +348,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 32,
         .PABITS = 32,
         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_DSPR2,
@@ -427,6 +434,7 @@ static const mips_def_t mips_defs[] =
                     (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
                     (1 << FCR0_D) | (1 << FCR0_S) | (0x03 << FCR0_PRID),
         .CP1_fcr31 = (1 << FCR31_ABS2008) | (1 << FCR31_NAN2008),
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 32,
         .PABITS = 40,
         .insn_flags = CPU_MIPS32R5 | ASE_MSA,
@@ -465,6 +473,7 @@ static const mips_def_t mips_defs[] =
                     (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
                     (1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
         .CP1_fcr31 = (1 << FCR31_ABS2008) | (1 << FCR31_NAN2008),
+        .CP1_fcr31_rw_bitmask = 0x0103FFFF,
         .SEGBITS = 32,
         .PABITS = 32,
         .insn_flags = CPU_MIPS32R6 | ASE_MICROMIPS,
@@ -485,6 +494,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0x0183FFFF,
         .SEGBITS = 40,
         .PABITS = 36,
         .insn_flags = CPU_MIPS3,
@@ -503,6 +514,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 40,
         .PABITS = 32,
         .insn_flags = CPU_VR54XX,
@@ -548,6 +561,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 42,
         .PABITS = 36,
         .insn_flags = CPU_MIPS64,
@@ -575,6 +590,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 40,
         .PABITS = 36,
         .insn_flags = CPU_MIPS64 | ASE_MIPS3D,
@@ -601,6 +618,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 42,
         .PABITS = 36,
         .insn_flags = CPU_MIPS64R2 | ASE_MIPS3D,
@@ -686,6 +705,7 @@ static const mips_def_t mips_defs[] =
                     (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
                     (1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
         .CP1_fcr31 = (1 << FCR31_ABS2008) | (1 << FCR31_NAN2008),
+        .CP1_fcr31_rw_bitmask = 0x0103FFFF,
         .SEGBITS = 48,
         .PABITS = 48,
         .insn_flags = CPU_MIPS64R6 | ASE_MSA,
@@ -704,6 +724,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 40,
         .PABITS = 40,
         .insn_flags = CPU_LOONGSON2E,
@@ -722,6 +744,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 40,
         .PABITS = 40,
         .insn_flags = CPU_LOONGSON2F,
@@ -749,6 +773,8 @@ 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,
+        .CP1_fcr31_rw_bitmask = 0xFF83FFFF,
         .SEGBITS = 42,
         .PABITS = 36,
         .insn_flags = CPU_MIPS64R2 | ASE_DSP | ASE_DSPR2,
@@ -892,4 +918,7 @@ static void msa_reset(CPUMIPSState *env)
 
     /* clear float_status nan mode */
     set_default_nan_mode(0, &env->active_tc.msa_fp_status);
+
+    /* set proper signanling bit meaning ("1" means "quiet") */
+    set_snan_bit_is_one(0, &env->active_tc.msa_fp_status);
 }