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authorRichard Henderson <richard.henderson@linaro.org>2018-02-11 17:14:10 -0800
committerRichard Henderson <richard.henderson@linaro.org>2019-02-12 08:48:27 -0800
commit40f9f908ef4e32a6163ccdb0450872951bfc3731 (patch)
tree97c3b04191b9001bd3adedff8b8a7da54cd7a3be /target/hppa
parent312347683cb4225a2e6001d18e0a8a67d3f8727b (diff)
target/hppa: Begin using scripts/decodetree.py
Convert the BREAK instruction to start. Tested-by: Helge Deller <deller@gmx.de> Tested-by: Sven Schnelle <svens@stackframe.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/hppa')
-rw-r--r--target/hppa/Makefile.objs8
-rw-r--r--target/hppa/insns.decode24
-rw-r--r--target/hppa/translate.c24
3 files changed, 51 insertions, 5 deletions
diff --git a/target/hppa/Makefile.objs b/target/hppa/Makefile.objs
index 3359da5341..174f50a96c 100644
--- a/target/hppa/Makefile.objs
+++ b/target/hppa/Makefile.objs
@@ -1,3 +1,11 @@
obj-y += translate.o helper.o cpu.o op_helper.o gdbstub.o mem_helper.o
obj-y += int_helper.o
obj-$(CONFIG_SOFTMMU) += machine.o
+
+DECODETREE = $(SRC_PATH)/scripts/decodetree.py
+
+target/hppa/decode.inc.c: $(SRC_PATH)/target/hppa/insns.decode $(DECODETREE)
+ $(call quiet-command,\
+ $(PYTHON) $(DECODETREE) -o $@ $<, "GEN", $(TARGET_DIR)$@)
+
+target/hppa/translate.o: target/hppa/decode.inc.c
diff --git a/target/hppa/insns.decode b/target/hppa/insns.decode
new file mode 100644
index 0000000000..2822fbc58b
--- /dev/null
+++ b/target/hppa/insns.decode
@@ -0,0 +1,24 @@
+#
+# HPPA instruction decode definitions.
+#
+# Copyright (c) 2018 Richard Henderson <rth@twiddle.net>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, see <http://www.gnu.org/licenses/>.
+#
+
+####
+# System
+####
+
+break 000000 ----- ----- --- 00000000 -----
diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index a4f253a022..f50ec7b9c2 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -278,6 +278,9 @@ typedef struct DisasContext {
bool psw_n_nonzero;
} DisasContext;
+/* Include the auto-generated decoder. */
+#include "decode.inc.c"
+
/* We are not using a goto_tb (for whatever reason), but have updated
the iaq (for whatever reason), so don't do it again on exit. */
#define DISAS_IAQ_N_UPDATED DISAS_TARGET_0
@@ -661,7 +664,8 @@ static void nullify_set(DisasContext *ctx, bool x)
}
/* Mark the end of an instruction that may have been nullified.
- This is the pair to nullify_over. */
+ This is the pair to nullify_over. Always returns true so that
+ it may be tail-called from a translate function. */
static bool nullify_end(DisasContext *ctx)
{
TCGLabel *null_lab = ctx->null_lab;
@@ -745,12 +749,17 @@ static bool gen_illegal(DisasContext *ctx)
return gen_excp_iir(ctx, EXCP_ILL);
}
-#define CHECK_MOST_PRIVILEGED(EXCP) \
+#ifdef CONFIG_USER_ONLY
+#define CHECK_MOST_PRIVILEGED(EXCP) \
+ return gen_excp_iir(ctx, EXCP)
+#else
+#define CHECK_MOST_PRIVILEGED(EXCP) \
do { \
if (ctx->privilege != 0) { \
return gen_excp_iir(ctx, EXCP); \
} \
} while (0)
+#endif
static bool use_goto_tb(DisasContext *ctx, target_ureg dest)
{
@@ -1982,7 +1991,7 @@ static bool trans_nop(DisasContext *ctx, uint32_t insn, const DisasInsn *di)
return true;
}
-static bool trans_break(DisasContext *ctx, uint32_t insn, const DisasInsn *di)
+static bool trans_break(DisasContext *ctx, arg_break *a)
{
return gen_excp_iir(ctx, EXCP_BREAK);
}
@@ -2308,7 +2317,6 @@ static bool gen_hlt(DisasContext *ctx, int reset)
#endif /* !CONFIG_USER_ONLY */
static const DisasInsn table_system[] = {
- { 0x00000000u, 0xfc001fe0u, trans_break },
{ 0x00001820u, 0xffe01fffu, trans_mtsp },
{ 0x00001840u, 0xfc00ffffu, trans_mtctl },
{ 0x016018c0u, 0xffe0ffffu, trans_mtsarcm },
@@ -4534,8 +4542,14 @@ static void translate_table_int(DisasContext *ctx, uint32_t insn,
static void translate_one(DisasContext *ctx, uint32_t insn)
{
- uint32_t opc = extract32(insn, 26, 6);
+ uint32_t opc;
+
+ /* Transition to the auto-generated decoder. */
+ if (decode(ctx, insn)) {
+ return;
+ }
+ opc = extract32(insn, 26, 6);
switch (opc) {
case 0x00: /* system op */
translate_table(ctx, insn, table_system);