diff options
Diffstat (limited to 'listamsb.c')
| -rw-r--r-- | listamsb.c | 21 |
1 files changed, 17 insertions, 4 deletions
@@ -99,7 +99,7 @@ int read_header(void) { } if(proglen < MIN_PROGLEN) { - fprintf(stderr, "%s: not an AMSB file: program size in header too small (%d)\n", + fprintf(stderr, "%s: not an AMSB file: program size too small (%d). Atari BASIC file?\n", self, proglen); exit(1); } @@ -195,6 +195,12 @@ int next_line(void) { unknown_token(lineno, byte, 0); } else { if(!byte) break; + if(byte < 0x20) { + /* ATASCII graphics outside of a string */ + fprintf(stderr, "%s: line %d has character %d outside of a string, " + "maybe not an AMSB file?\n", + self, lineno, byte); + } putc(byte, outfile); } } @@ -267,10 +273,14 @@ void open_output() { perror("/dev/null"); exit(1); } + if(verbose) + fprintf(stderr, "using /dev/null for output (check_only)\n"); } else if(raw_output) { if(isatty(fileno(stdout))) die("refusing to write raw ATASCII to a terminal"); outfile = stdout; + if(verbose) + fprintf(stderr, "using stdout for output\n"); } else { if(verbose) fprintf(stderr, "using pipe for output: %s\n", pipe_command); @@ -304,7 +314,7 @@ int main(int argc, char **argv) { if(verbose) fprintf(stderr, "file size matches proglen\n"); } else { - fprintf(stderr, "%s: file size doesn't match length in header\n", self); + fprintf(stderr, "%s: actual program size doesn't match program size in header\n", self); } if(fgetc(infile) != EOF) { @@ -312,12 +322,15 @@ int main(int argc, char **argv) { } if(unknowns) { - fprintf(stderr, "%s: input has %d unknown tokens\n", self, unknowns);; + fprintf(stderr, "%s: file has %d unknown tokens\n", self, unknowns);; rv = 2; } if(need_pclose) { - if(pclose(outfile) != 0) { + int got = pclose(outfile); + if(verbose) + fprintf(stderr, "return value from pipe is %d\n", got); + if(got != 0) { die("a8cat child process failed, do you have a8cat on your PATH?"); } } |