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target/ppc: Fix register update on lf[sd]u[x]/stf[sd]u[x]

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These instructions should update the GPR indicated by the field RA
instead of RT. This error caused a regression on Mac OS 9 boot and some
graphical glitches in OS X.

Fixes: a39a106634a9 ("target/ppc: Move load and store floating point instructions to decodetree")
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Matheus Ferst 2021-11-09 16:29:11 -03:00 committed by Cédric Le Goater
parent 0a70bcf18c
commit 3620328f78
1 changed files with 1 additions and 1 deletions
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2
target/ppc/translate/fp-impl.c.inc
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@ -1328,7 +1328,7 @@ static bool do_lsfpsd(DisasContext *ctx, int rt, int ra, TCGv displ,
set_fpr(rt, t0);
}
if (update) {
tcg_gen_mov_tl(cpu_gpr[rt], ea);
tcg_gen_mov_tl(cpu_gpr[ra], ea);
}
tcg_temp_free_i64(t0);
tcg_temp_free(ea);