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[7/7] target-tricore: Add ftoi and itof instructions

Message ID 1456849468-30217-8-git-send-email-kbastian@mail.uni-paderborn.de (mailing list archive)
State New, archived
Headers show

Commit Message

Bastian Koppelmann March 1, 2016, 4:24 p.m. UTC 
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
 target-tricore/fpu_helper.c | 46 +++++++++++++++++++++++++++++++++++++++++++++
 target-tricore/helper.h     |  2 ++
 target-tricore/translate.c  |  6 ++++++
 3 files changed, 54 insertions(+)

Comments

Richard Henderson March 1, 2016, 6:26 p.m. UTC | #1 
On 03/01/2016 08:24 AM, Bastian Koppelmann wrote:
> +    env->FPU_FS = 0;
> +    if (get_float_exception_flags(&env->fp_status) & float_flag_invalid) {
> +        env->FPU_FI = (1 << 31);
> +        env->FPU_FS = 1;
> +    }
> +
> +    if (get_float_exception_flags(&env->fp_status) & float_flag_inexact) {
> +        env->PSW |= 1 << 26;
> +        env->FPU_FS = 1;
> +    }
...
> +    env->FPU_FS = 0;
> +
> +    if (get_float_exception_flags(&env->fp_status) & float_flag_inexact) {
> +        env->PSW |= 1 << 26;
> +        env->FPU_FS = 1;
> +    }

Similar comment re f_update_psw_flags.


r~
diff mbox

Patch

diff --git a/target-tricore/fpu_helper.c b/target-tricore/fpu_helper.c
index ceda415..3c09300 100644
--- a/target-tricore/fpu_helper.c
+++ b/target-tricore/fpu_helper.c
@@ -200,3 +200,49 @@  uint32_t helper_fcmp(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
 
     return result;
 }
+
+uint32_t helper_ftoi(CPUTriCoreState *env, uint32_t arg)
+{
+    float32 f_arg = make_float32(arg);
+    int32_t result;
+
+    f_set_flags(env);
+
+    result = float32_to_int32(f_arg, &env->fp_status);
+
+    if (float32_is_any_nan(f_arg)) {
+        env->FPU_FI = (1 << 31);
+        result = 0;
+    }
+
+    env->FPU_FS = 0;
+    if (get_float_exception_flags(&env->fp_status) & float_flag_invalid) {
+        env->FPU_FI = (1 << 31);
+        env->FPU_FS = 1;
+    }
+
+    if (get_float_exception_flags(&env->fp_status) & float_flag_inexact) {
+        env->PSW |= 1 << 26;
+        env->FPU_FS = 1;
+    }
+
+    return (uint32_t)result;
+}
+
+uint32_t helper_itof(CPUTriCoreState *env, uint32_t arg)
+{
+    float32 f_result;
+
+    f_set_flags(env);
+
+    f_result = int32_to_float32(arg, &env->fp_status);
+
+    env->FPU_FS = 0;
+
+    if (get_float_exception_flags(&env->fp_status) & float_flag_inexact) {
+        env->PSW |= 1 << 26;
+        env->FPU_FS = 1;
+    }
+
+    return (uint32_t)f_result;
+}
diff --git a/target-tricore/helper.h b/target-tricore/helper.h
index 489530f..9333e16 100644
--- a/target-tricore/helper.h
+++ b/target-tricore/helper.h
@@ -110,6 +110,8 @@  DEF_HELPER_3(fsub, i32, env, i32, i32)
 DEF_HELPER_3(fmul, i32, env, i32, i32)
 DEF_HELPER_3(fdiv, i32, env, i32, i32)
 DEF_HELPER_3(fcmp, i32, env, i32, i32)
+DEF_HELPER_2(ftoi, i32, env, i32)
+DEF_HELPER_2(itof, i32, env, i32)
 /* dvinit */
 DEF_HELPER_3(dvinit_b_13, i64, env, i32, i32)
 DEF_HELPER_3(dvinit_b_131, i64, env, i32, i32)
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index a6e5c64..30ff016 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -6681,6 +6681,12 @@  static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx)
     case OPC2_32_RR_CMP_F:
         gen_helper_fcmp(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r2]);
         break;
+    case OPC2_32_RR_FTOI:
+        gen_helper_ftoi(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1]);
+        break;
+    case OPC2_32_RR_ITOF:
+        gen_helper_itof(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1]);
+        break;
     default:
         generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC);
     }