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target/hppa: ignore DIAG opcode

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DIAG is usually only used by diagnostics software as it's CPU
specific. In most of the cases it's better to ignore it and log
a message that it's not implemented.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190311191602.25796-7-svens@stackframe.org>
[rth: Free the nullify condition.]
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Sven Schnelle 2019-03-11 20:15:57 +01:00 committed by Richard Henderson
parent b06c0618c0
commit 15da177bb4
2 changed files with 10 additions and 0 deletions
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3
target/hppa/insns.decode
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@ -525,3 +525,6 @@ fmpy_d 001110 ..... ..... 010 ..... ... ..... @f0e_d_3
fdiv_d 001110 ..... ..... 011 ..... ... ..... @f0e_d_3
xmpyu 001110 ..... ..... 010 .0111 .00 t:5 r1=%ra64 r2=%rb64
# diag
diag 000101 ----- ----- ---- ---- ---- ----

7
target/hppa/translate.c
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@ -4048,6 +4048,13 @@ static bool trans_fmpyfadd_d(DisasContext *ctx, arg_fmpyfadd_d *a)
return nullify_end(ctx);
}
static bool trans_diag(DisasContext *ctx, arg_diag *a)
{
qemu_log_mask(LOG_UNIMP, "DIAG opcode ignored\n");
cond_free(&ctx->null_cond);
return true;
}
static void hppa_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);