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target-tricore: Add updfl instruction

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Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Bastian Koppelmann 2016-10-06 17:52:04 +02:00
parent dedd8c9c32
commit 50788a3fdb
3 changed files with 18 additions and 0 deletions
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14
target/tricore/fpu_helper.c
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@ -333,3 +333,17 @@ uint32_t helper_ftouz(CPUTriCoreState *env, uint32_t arg)
}
return result;
}
void helper_updfl(CPUTriCoreState *env, uint32_t arg)
{
env->FPU_FS = extract32(arg, 7, 1) & extract32(arg, 15, 1);
env->FPU_FI = (extract32(arg, 6, 1) & extract32(arg, 14, 1)) << 31;
env->FPU_FV = (extract32(arg, 5, 1) & extract32(arg, 13, 1)) << 31;
env->FPU_FZ = (extract32(arg, 4, 1) & extract32(arg, 12, 1)) << 31;
env->FPU_FU = (extract32(arg, 3, 1) & extract32(arg, 11, 1)) << 31;
/* clear FX and RM */
env->PSW &= ~(extract32(arg, 10, 1) << 26);
env->PSW |= (extract32(arg, 2, 1) & extract32(arg, 10, 1)) << 26;
fpu_set_state(env);
}

1
target/tricore/helper.h
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@ -115,6 +115,7 @@ 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)
DEF_HELPER_2(updfl, void, env, i32)
/* dvinit */
DEF_HELPER_3(dvinit_b_13, i64, env, i32, i32)
DEF_HELPER_3(dvinit_b_131, i64, env, i32, i32)

3
target/tricore/translate.c
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@ -6735,6 +6735,9 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx)
case OPC2_32_RR_FTOUZ:
gen_helper_ftouz(cpu_gpr_d[r3], cpu_env, cpu_gpr_d[r1]);
break;
case OPC2_32_RR_UPDFL:
gen_helper_updfl(cpu_env, cpu_gpr_d[r1]);
break;
default:
generate_trap(ctx, TRAPC_INSN_ERR, TIN2_IOPC);
}