haraldwolff/qemu-patch-raspberry4
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target/sh4: generate fences for SH4

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synco is a SH4-A only instruction.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2017-05-01 23:20:43 +02:00
parent a380f9db96
commit aa3513176f
1 changed files with 5 additions and 4 deletions
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9
target/sh4/translate.c
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@ -1569,10 +1569,11 @@ static void _decode_opc(DisasContext * ctx)
else
break;
case 0x00ab: /* synco */
if (ctx->features & SH_FEATURE_SH4A)
return;
else
break;
if (ctx->features & SH_FEATURE_SH4A) {
tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC);
return;
}
break;
case 0x4024: /* rotcl Rn */
{
TCGv tmp = tcg_temp_new();