diff -ubr fasdump/fasdump.c fasdump-mario/fasdump.c
--- fasdump/fasdump.c	2009-04-04 22:35:19.000000000 +0200
+++ fasdump-mario/fasdump.c	2015-10-28 16:53:16.977631785 +0100
@@ -22,7 +22,7 @@
 
 /* convert pascal string to C string.
    parameters: pointers to pascal and C string (must be large enough) */
-void pstr2cstr(const char *pstr, char *cstr)
+void pstr2cstr(const uint8_t *pstr, char *cstr)
 {
 	/* first byte of pascal string contains string length */
 	uint8_t len = (uint8_t)(*pstr);
@@ -61,7 +61,7 @@
 		fprintf(stderr, "Read error while processing header\n");
 		goto out_error;
 	}
-	if (hdr.signature != 0x1B736166)  {
+	if (hdr.signature != 0x1A736166)  {
 		fprintf(stderr, "File is corrupt, signature is invalid\n");
 		goto out_error;
 	}
@@ -95,7 +95,7 @@
 	}
 
 	/* read preprocessed source. on error, free all allocated memory */
-	psrc = (char *)malloc(hdr.psrc_len);
+	psrc = (uint8_t *)malloc(hdr.psrc_len);
 	if (psrc == NULL) {
 		fprintf(stderr, "Memory allocation error while processing"
 				" preprocessed source\n");
@@ -279,12 +279,12 @@
 /* print preprocessed source */
 void print_preproc_src()
 {
-	char	 *token_line;		/* token line (dynamically allocated) */
-	char	 *tmp_tl;		/* temp for token_line during realloc */
+	uint8_t	 *token_line;		/* token line (dynamically allocated) */
+	uint8_t	 *tmp_tl;		/* temp for token_line during realloc */
 	uint32_t cur_line_len;		/* current length of token line */
 	uint32_t calc_line_len;		/* calculated length of token line */
 	uint32_t idx;			/* index into token_line */
-	char	 *token_ptr;		/* points to token */
+	uint8_t	 *token_ptr;		/* points to token */
 	uint32_t token_len;		/* length of token */
 	uint8_t	 test_byte;
 	int	 just_did_token;
@@ -293,7 +293,7 @@
 	/* allocate a default buffer. if it later turns out that this is not big
 	   enough (there's no limit to token line length), it will be expanded */
 	cur_line_len = 1024;
-	token_line = (char *)malloc(cur_line_len);
+	token_line = (uint8_t *)malloc(cur_line_len);
 	if (token_line == NULL) {
 		fprintf(stderr, "Memory allocation error\n");
 		goto out_error;
@@ -332,7 +332,7 @@
 				/* buffer too small for token line? expand it */
 				if (calc_line_len > cur_line_len) {
 					cur_line_len += 4096;
-					tmp_tl = (char *)xrealloc(token_line,
+					tmp_tl = (uint8_t *)xrealloc(token_line,
 								  cur_line_len);
 					if (tmp_tl == NULL) {
 						goto out_error_free;
@@ -374,7 +374,7 @@
 				/* buffer too small for token line? expand it */
 				if (calc_line_len > cur_line_len) {
 					cur_line_len += 4096;
-					tmp_tl = (char *)xrealloc(token_line,
+					tmp_tl = (uint8_t *)xrealloc(token_line,
 								  cur_line_len);
 					if (tmp_tl == NULL) {
 						goto out_error_free;
@@ -388,7 +388,7 @@
 		}
 		/* print line (if it's not empty) */
 		token_line[idx] = '\0';
-		if (strlen(token_line) > 0) {
+		if (strlen((char*)token_line) > 0) {
 			printf("%s\n", token_line);
 		}
 	}
diff -ubr fasdump/fasdump.h fasdump-mario/fasdump.h
--- fasdump/fasdump.h	2009-04-04 22:35:23.000000000 +0200
+++ fasdump-mario/fasdump.h	2015-10-28 16:52:24.037629370 +0100
@@ -67,14 +67,14 @@
 char     *strtbl;		/* string table */
 struct   symtbl_entry *symtbl;	/* symbol table */
 uint32_t num_symbols;		/* number of symbols */
-char     *psrc;			/* char* so it's easier to parse token sequences.
+uint8_t     *psrc;			/* char* so it's easier to parse token sequences.
 				   overlay struct psrc_ln_fixed at start. */
 uint32_t *scttbl;		/* section names table */
 uint32_t num_sections;		/* number of sections */
 
 /* prototypes */
 void *xrealloc(void *, const size_t);
-void pstr2cstr(const char *, char *);
+void pstr2cstr(const uint8_t* pstr, char* cstr);
 void print_usage(FILE *, const char *, const int);
 int  read_all_file_parts(FILE *);
 void print_header(void);
Only in fasdump-mario/: Makefile