Commit 8f75983d authored by Bastian Koppelmann's avatar Bastian Koppelmann
Browse files

target-tricore: Added FTOUZ instruction 



Converts a 32-bit floating point number to an unsigned int. The
result is rounded towards zero.

Signed-off-by: default avatarBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
parent b44486df

target/tricore/fpu_helper.c

+27 −0
Original line number Diff line number Diff line
@@ -215,3 +215,30 @@ uint32_t helper_itof(CPUTriCoreState *env, uint32_t arg) 
    }

    return (uint32_t)f_result;

}



uint32_t helper_ftouz(CPUTriCoreState *env, uint32_t arg)

{

    float32 f_arg = make_float32(arg);

    uint32_t result;

    int32_t flags;



    result = float32_to_uint32_round_to_zero(f_arg, &env->fp_status);



    flags = f_get_excp_flags(env);

    if (flags & float_flag_invalid) {

        flags &= ~float_flag_inexact;

        if (float32_is_any_nan(f_arg)) {

            result = 0;

        }

    } else if (float32_lt_quiet(f_arg, 0, &env->fp_status)) {

        flags = float_flag_invalid;

        result = 0;

    }



    if (flags) {

        f_update_psw_flags(env, flags);

    } else {

        env->FPU_FS = 0;

    }

    return result;

}

target/tricore/helper.h

+1 −0
Original line number Diff line number Diff line
@@ -112,6 +112,7 @@ 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)

DEF_HELPER_2(ftouz, i32, env, i32)

/* dvinit */

DEF_HELPER_3(dvinit_b_13, i64, env, i32, i32)

DEF_HELPER_3(dvinit_b_131, i64, env, i32, i32)

target/tricore/translate.c

+3 −0
Original line number Diff line number Diff line
@@ -6698,6 +6698,9 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx) 
    case OPC2_32_RR_ITOF:

        gen_helper_itof(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1]);

        break;

    case OPC2_32_RR_FTOUZ:

        gen_helper_ftouz(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1]);

        break;

    default:

        generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC);

    }