[v22,13/22] target/rx: Dump bytes for each insn during disassembly

Commit Message

Yoshinori Sato July 5, 2019, 8:31 a.m. UTC

From: Richard Henderson <[e-mail]>

There are so many different forms of each RX instruction
that it will be very useful to be able to look at the bytes
to see on which path a bug may lie.

Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>
Reviewed-by: Yoshinori Sato <[e-mail]>
Signed-off-by: Yoshinori Sato <[e-mail]>
Message-Id: <[e-mail]>
Tested-by: Philippe Mathieu-Daudé <[e-mail]>
Signed-off-by: Richard Henderson <[e-mail]>
---
 target/rx/disas.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

Patch

diff --git a/target/rx/disas.c b/target/rx/disas.c
index 5a32a87534..d73b53db44 100644
--- a/target/rx/disas.c
+++ b/target/rx/disas.c
@@ -102,7 +102,21 @@  static int bdsp_s(DisasContext *ctx, int d)
 /* Include the auto-generated decoder.  */
 #include "decode.inc.c"
 
-#define prt(...) (ctx->dis->fprintf_func)((ctx->dis->stream), __VA_ARGS__)
+static void dump_bytes(DisasContext *ctx)
+{
+    int i, len = ctx->len;
+
+    for (i = 0; i < len; ++i) {
+        ctx->dis->fprintf_func(ctx->dis->stream, "%02x ", ctx->bytes[i]);
+    }
+    ctx->dis->fprintf_func(ctx->dis->stream, "%*c", (8 - i) * 3, '\t');
+}
+
+#define prt(...) \
+    do {                                                        \
+        dump_bytes(ctx);                                        \
+        ctx->dis->fprintf_func(ctx->dis->stream, __VA_ARGS__);  \
+    } while (0)
 
 #define RX_MEMORY_BYTE 0
 #define RX_MEMORY_WORD 1