These are aliased onto the normal integer loads to %g0.
Since we don't emulate caches, prefetch is a nop.
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
target/hppa/translate.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 3d8240ea7d..0883b146a9 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -2976,7 +2976,15 @@ static bool trans_permh(DisasContext *ctx, arg_permh *a)
static bool trans_ld(DisasContext *ctx, arg_ldst *a)
{
- if (!ctx->is_pa20 && a->size > MO_32) {
+ if (ctx->is_pa20) {
+ /*
+ * With pa20, LDB, LDH, LDW, LDD to %g0 are prefetches.
+ * Any base modification still occurs.
+ */
+ if (a->t == 0) {
+ return trans_nop_addrx(ctx, a);
+ }
+ } else if (a->size > MO_32) {
return gen_illegal(ctx);
}
return do_load(ctx, a->t, a->b, a->x, a->scale ? a->size : 0,
--
2.34.1
