mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

target-tricore: Add ftoi and itof instructions

Browse Source 
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <1457708597-3025-8-git-send-email-kbastian@mail.uni-paderborn.de>
This commit is contained in:
Bastian Koppelmann 2016-03-11 16:03:17 +01:00
parent 743cd09dd7
commit 0d4c3b8010
3 changed files with 42 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
target-tricore/fpu_helper.c
View File

@ -181,3 +181,37 @@ uint32_t helper_fcmp(CPUTriCoreState *env, uint32_t r1, uint32_t r2)
set_flush_inputs_to_zero(1, &env->fp_status);
return result;
}
uint32_t helper_ftoi(CPUTriCoreState *env, uint32_t arg)
{
float32 f_arg = make_float32(arg);
int32_t result, flags;
result = float32_to_int32(f_arg, &env->fp_status);
flags = f_get_excp_flags(env);
if (flags) {
if (float32_is_any_nan(f_arg)) {
result = 0;
}
f_update_psw_flags(env, flags);
} else {
env->FPU_FS = 0;
}
return (uint32_t)result;
}
uint32_t helper_itof(CPUTriCoreState *env, uint32_t arg)
{
float32 f_result;
uint32_t flags;
f_result = int32_to_float32(arg, &env->fp_status);
flags = f_get_excp_flags(env);
if (flags) {
f_update_psw_flags(env, flags);
} else {
env->FPU_FS = 0;
}
return (uint32_t)f_result;
}

2
target-tricore/helper.h
View File

@ -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)

6
target-tricore/translate.c
View File

@ -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);
}