aboutsummaryrefslogtreecommitdiff
path: root/target-tricore
diff options
context:
space:
mode:
authorBastian Koppelmann <kbastian@mail.uni-paderborn.de>2016-03-11 16:03:16 +0100
committerBastian Koppelmann <kbastian@mail.uni-paderborn.de>2016-03-23 09:22:48 +0100
commit743cd09dd7775aaffb7f57444bef0d052bed9691 (patch)
treeb8a54026a05ec071aad983451d0f964b6d9d1a20 /target-tricore
parent446ee5b2a86766bc5cc9d23a106f364bd8ce01b4 (diff)
target-tricore: Add cmp.f instruction
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Message-Id: <1457708597-3025-7-git-send-email-kbastian@mail.uni-paderborn.de>
Diffstat (limited to 'target-tricore')
-rw-r--r--target-tricore/fpu_helper.c23
-rw-r--r--target-tricore/helper.h1
-rw-r--r--target-tricore/translate.c3
3 files changed, 27 insertions, 0 deletions
diff --git a/target-tricore/fpu_helper.c b/target-tricore/fpu_helper.c
index 5ae56e07f6..a60bf29625 100644
--- a/target-tricore/fpu_helper.c
+++ b/target-tricore/fpu_helper.c
@@ -158,3 +158,26 @@ uint32_t helper_fdiv(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
return (uint32_t)f_result;
}
+
+uint32_t helper_fcmp(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
+{
+ uint32_t result, flags;
+ float32 arg1 = make_float32(r1);
+ float32 arg2 = make_float32(r2);
+
+ set_flush_inputs_to_zero(0, &env->fp_status);
+
+ result = 1 << (float32_compare_quiet(arg1, arg2, &env->fp_status) + 1);
+ result |= f_is_denormal(arg1) << 4;
+ result |= f_is_denormal(arg2) << 5;
+
+ flags = f_get_excp_flags(env);
+ if (flags) {
+ f_update_psw_flags(env, flags);
+ } else {
+ env->FPU_FS = 0;
+ }
+
+ set_flush_inputs_to_zero(1, &env->fp_status);
+ return result;
+}
diff --git a/target-tricore/helper.h b/target-tricore/helper.h
index f5eff3625a..489530fc6a 100644
--- a/target-tricore/helper.h
+++ b/target-tricore/helper.h
@@ -109,6 +109,7 @@ DEF_HELPER_3(fadd, i32, env, i32, i32)
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)
/* 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 eaa7dd515f..34cae632e5 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -6678,6 +6678,9 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx)
case OPC2_32_RR_DIV_F:
gen_helper_fdiv(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r2]);
break;
+ case OPC2_32_RR_CMP_F:
+ gen_helper_fcmp(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1], cpu_gpr_d[r2]);
+ break;
default:
generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC);
}