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[Qemu-devel] [PATCH 3/7] target-tricore: add add.f/sub.f instructions
From: |
Bastian Koppelmann |
Subject: |
[Qemu-devel] [PATCH 3/7] target-tricore: add add.f/sub.f instructions |
Date: |
Tue, 1 Mar 2016 17:24:24 +0100 |
Signed-off-by: Bastian Koppelmann <address@hidden>
---
target-tricore/fpu_helper.c | 31 +++++++++++++++++++++++++++++++
target-tricore/helper.h | 2 ++
target-tricore/translate.c | 6 ++++++
3 files changed, 39 insertions(+)
diff --git a/target-tricore/fpu_helper.c b/target-tricore/fpu_helper.c
index ddf877e..b840c20 100644
--- a/target-tricore/fpu_helper.c
+++ b/target-tricore/fpu_helper.c
@@ -81,3 +81,34 @@ static inline void f_set_flags(CPUTriCoreState *env)
set_flush_to_zero(1, &env->fp_status);
set_float_exception_flags(0, &env->fp_status);
}
+
+#define FADD_SUB(name)
\
+uint32_t helper_f##name(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
\
+{
\
+ float32 arg1 = make_float32(r1);
\
+ float32 arg2 = make_float32(r2);
\
+ float32 f_result;
\
+
\
+ f_set_flags(env);
\
+
\
+ arg1 = float32_squash_input_denormal(arg1, &env->fp_status);
\
+ arg2 = float32_squash_input_denormal(arg2, &env->fp_status);
\
+
\
+ if (float32_is_any_nan(arg1) || float32_is_any_nan(arg2)) {
\
+ f_result = QUIET_NAN;
\
+ if (float32_is_signaling_nan(arg1) ||
\
+ float32_is_signaling_nan(arg2)) {
\
+ env->fp_status.float_exception_flags |= float_flag_invalid;
\
+ }
\
+ } else if (f_is_pos_inf(arg1) && f_is_neg_inf(arg2)) {
\
+ f_result = ADD_NAN;
\
+ } else if (f_is_pos_inf(arg2) && f_is_neg_inf(arg1)) {
\
+ f_result = ADD_NAN;
\
+ } else {
\
+ f_result = float32_##name(arg1, arg2 , &env->fp_status);
\
+ }
\
+ f_update_psw_flags(env, false);
\
+ return (uint32_t)f_result;
\
+}
+FADD_SUB(add)
+FADD_SUB(sub)
diff --git a/target-tricore/helper.h b/target-tricore/helper.h
index 2c8ed78..2f4a2bb 100644
--- a/target-tricore/helper.h
+++ b/target-tricore/helper.h
@@ -105,6 +105,8 @@ DEF_HELPER_FLAGS_1(parity, TCG_CALL_NO_RWG_SE, i32, i32)
/* float */
DEF_HELPER_FLAGS_4(pack, TCG_CALL_NO_RWG_SE, i32, i32, i32, i32, i32)
DEF_HELPER_1(unpack, i64, i32)
+DEF_HELPER_3(fadd, i32, env, i32, i32)
+DEF_HELPER_3(fsub, i32, env, i32, 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 84313d2..04620a7 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -7061,6 +7061,12 @@ static void decode_rrr_divide(CPUTriCoreState *env,
DisasContext *ctx)
gen_helper_pack(cpu_gpr_d[r4], cpu_PSW_C, cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1]);
break;
+ case OPC2_32_RRR_ADD_F:
+ gen_helper_fadd(cpu_gpr_d[r4], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r3]);
+ break;
+ case OPC2_32_RRR_SUB_F:
+ gen_helper_fsub(cpu_gpr_d[r4], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r3]);
+ break;
default:
generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC);
}
--
2.7.2
- [Qemu-devel] [PATCH 0/7] TriCore FPU patches, Bastian Koppelmann, 2016/03/01
- [Qemu-devel] [PATCH 2/7] target-tricore: Move general CHECK_REG_PAIR of decode_rrr_divide, Bastian Koppelmann, 2016/03/01
- [Qemu-devel] [PATCH 7/7] target-tricore: Add ftoi and itof instructions, Bastian Koppelmann, 2016/03/01
- [Qemu-devel] [PATCH 1/7] target-tricore: Add FPU infrastructure, Bastian Koppelmann, 2016/03/01
- [Qemu-devel] [PATCH 5/7] target-tricore: Add div.f instruction, Bastian Koppelmann, 2016/03/01
- [Qemu-devel] [PATCH 4/7] target-tricore: Add mul.f instruction, Bastian Koppelmann, 2016/03/01
- [Qemu-devel] [PATCH 3/7] target-tricore: add add.f/sub.f instructions,
Bastian Koppelmann <=
- [Qemu-devel] [PATCH 6/7] target-tricore: Add cmp.f instruction, Bastian Koppelmann, 2016/03/01
- Re: [Qemu-devel] [PATCH 6/7] target-tricore: Add cmp.f instruction, Richard Henderson, 2016/03/01
- Re: [Qemu-devel] [PATCH 6/7] target-tricore: Add cmp.f instruction, Bastian Koppelmann, 2016/03/08
- Re: [Qemu-devel] [PATCH 6/7] target-tricore: Add cmp.f instruction, Richard Henderson, 2016/03/08
- Re: [Qemu-devel] [PATCH 6/7] target-tricore: Add cmp.f instruction, Bastian Koppelmann, 2016/03/08
- Re: [Qemu-devel] [PATCH 6/7] target-tricore: Add cmp.f instruction, Bastian Koppelmann, 2016/03/08
- Re: [Qemu-devel] [PATCH 6/7] target-tricore: Add cmp.f instruction, Richard Henderson, 2016/03/08
- Re: [Qemu-devel] [PATCH 6/7] target-tricore: Add cmp.f instruction, Bastian Koppelmann, 2016/03/08