Full featured macro assembler.  Well documented.  

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
---------- ----------- ------- ------- ------ ---------- ------------ ----------
[generic]                26618   70384  37.8% -lh5- 59a2 Jun 30  1987 Asm68k/Asm68k
[generic]                21048   61166  34.4% -lh5- 0115 Jun 30  1987 Asm68k/Asm68k.doc
[generic]                  199     783  25.4% -lh5- 7457 Jun 30  1987 Asm68k/Both
[generic]                  128     398  32.2% -lh5- a668 Jun 30  1987 Asm68k/Caps
[generic]                   42      46  91.3% -lh5- 222f Jun 30  1987 Asm68k/Install.Both
[generic]                   42      46  91.3% -lh5- 6941 Jun 30  1987 Asm68k/Install.Caps
[generic]                  305     525  58.1% -lh5- 5313 Jun 30  1987 Asm68k/READ.ME
[generic]                   12      12 100.0% -lh0- d114 Jun 30  1987 Asm68k/Temp
---------- ----------- ------- ------- ------ ---------- ------------ ----------
 Total         8 files   48394  133360  36.3%            Jun 29  1987