From f09c77689df6fe97399f9883d10ac26a0fc57f61 Mon Sep 17 00:00:00 2001
From: Raphael Assenat <raph@raphnet.net>
Date: Sun, 1 Nov 2015 14:11:38 -0500
Subject: [PATCH] Add a mempak hexdump function

---
 tool/mempak.c | 21 +++++++++++++++++++++
 tool/mempak.h |  4 +++-
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/tool/mempak.c b/tool/mempak.c
index be3a015..74995cb 100644
--- a/tool/mempak.c
+++ b/tool/mempak.c
@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <strings.h>
+#include <ctype.h>
 #include <libgen.h>
 #include "mempak.h"
 
@@ -433,3 +434,23 @@ int mempak_getFilenameFormat(const char *filename)
 	return MPK_FORMAT_INVALID;
 }
 
+int mempak_hexdump(mempak_structure_t *pak)
+{
+	int i,j;
+
+	for (i=0; i<MEMPAK_MEM_SIZE; i+=0x20) {
+		printf("%04x: ", i);
+		for (j=0; j<0x20; j++) {
+			printf("%02x ", pak->data[i+j]);
+		}
+		printf("    ");
+
+		for (j=0; j<0x20; j++) {
+			printf("%c", isprint(pak->data[i+j]) ? pak->data[i+j] : '.' );
+		}
+		printf("\n");
+	}
+
+	return 0;
+}
+
diff --git a/tool/mempak.h b/tool/mempak.h
index ced0d55..a2cef26 100644
--- a/tool/mempak.h
+++ b/tool/mempak.h
@@ -1,6 +1,7 @@
 #ifndef _mempak_h__
 #define _mempak_h__
 
+#define MEMPAK_MEM_SIZE		0x8000
 #define MEMPAK_NUM_NOTES	16
 
 #define MAX_NOTE_COMMENT_SIZE	257 // including 0 termination
@@ -12,7 +13,7 @@
 
 typedef struct mempak_structure
 {
-	unsigned char data[0x8000];
+	unsigned char data[MEMPAK_MEM_SIZE];
 	unsigned char file_format;
 
 	char note_comments[MEMPAK_NUM_NOTES][MAX_NOTE_COMMENT_SIZE];
@@ -29,6 +30,7 @@ void mempak_free(mempak_structure_t *mpk);
 int mempak_getFilenameFormat(const char *filename);
 int mempak_string2format(const char *str);
 const char *mempak_format2string(int fmt);
+int mempak_hexdump(mempak_structure_t *pak);
 
 #include "mempak_fs.h"