This program converts files to and from:
 .snapshot, .SNA, .Z80, .PRG, .SP, .ACH, .zx and RAW formats.

Most interesting is probably .sna(pshot) output that can be used with
Spectrum Emulator 1.7. (I believe .zx is the format used by the KGB
spectrum emulator.  The others are for various IBM PC spectrum emulators)

This program is a straight port from SPCONV 1.06 for the IBM PC.  Source is
included.

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
-rw-r--r--   739/2000      319     507  62.9% -lh5- 9a77 Apr 12  1994 SpecConvert106.readme
[generic]                 1460    2818  51.8% -lh5- 6de5 Feb 17  1994 author.doc
[generic]                 2039    5828  35.0% -lh5- cfae Feb 17  1994 history.doc
[generic]                17366   33372  52.0% -lh5- 737c Apr 12  1994 specconvert
-rw-r--r--   739/2000     2483    5919  41.9% -lh5- c258 Apr 12  1994 specconvert.doc
[generic]                  395     835  47.3% -lh5- 1e36 Feb 17  1994 specconvert.info
[generic]                  258     411  62.8% -lh5- 5ba8 Apr 12  1994 src/makefile
[generic]                 9377   34987  26.8% -lh5- b6cf Feb 18  1994 src/spconv.c
[generic]                 2080    8656  24.0% -lh5- be7e Feb 17  1994 src/spconv.h
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         9 files   35777   93333  38.3%            Apr 14  1994