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Name

cmddump - simulated TRS-80 CMD file loader

Synopsis

cmddump

[-d] [-i n] [-m] [-p entry] [-q] [-s] [-t] [-x] infile [outfile startbyte nbytes]

Description

cmddump displays information about TRS-80 DOS CMD (binary executable) files. It takes a mandatory input CMD file infile, and an optional triplet of arguments: an output file outfile, a starting offset of startbyte into the CMD file infile, and a number of bytes to dump, nbytes. If startbytes is specified, the given byte range is dumped from the simulated memory after loading.

The numeric arguments, including that to the option -i, may be given in any format recognized by strtol(3); in other words, traditional C literals for decimal, octal, and hexadecimal.

Options

The optional arguments and their parameters direct cmddump as follows.

-d

print detailed map; same as -m, but do not coalesce adjacent blocks

-i n

select ISAM entry n

-m

print running load map as file is parsed, coalescing adjacent blocks (implies -t); default

-p entry

select PDS entry entry; cmddump will truncate or right-pad entry with spaces, as needed, to the required fixed field width

-q

quiet; turns off -d, -m, -s, and -t (later flags can override)

-s

print summary load map after file is parsed

-t

print text of module headers, PDS headers, patch names, and copyright notices

-x

ignore anything after the first transfer address

Author

cmddump was written by Timothy Mann.

See also

xtrs(1)

The http://www.tim-mann.org/misosys.html">LDOS Quarterly, April 1, 1982 (Vol 1, No 4), has documentation of the TRS-80 DOS CMD file format.