Typical usage:
gasm80 game.asm -o game.rom
gasm80 game.asm -o game.rom -l game.lst

PERMISSION  UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP     NAME
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[generic]                   18      18 100.0% -lh0- cfd9 Aug 20 02:19 gasm80-master/.gitignore
[generic]                12539   77368  16.2% -lh5- 7f36 Aug 20 02:19 gasm80-master/gasm80.c
[generic]                  732    1353  54.1% -lh5- 6a61 Aug 20 02:19 gasm80-master/LICENSE.txt
[generic]                  131     175  74.9% -lh5- 5565 Aug 20 02:19 gasm80-master/Makefile
[generic]                 1173    2422  48.4% -lh5- 4f5e Aug 20 02:19 gasm80-master/README.md
[generic]                  607    1761  34.5% -lh5- 6aa2 Aug 20 02:19 gasm80-master/test/hello.asm
[generic]                 1869    6230  30.0% -lh5- 3398 Aug 20 02:19 gasm80-master/test/test.asm
[generic]                 1027    1248  82.3% -lh5- 84a8 Aug 20 02:19 gasm80-master/test/test.bin
[generic]                 6905   26054  26.5% -lh5- 68a8 Aug 20 02:19 gasm80-master/test/test.lst
[generic]                   46      90  51.1% -lh5- 7650 Aug 20 02:19 gasm80-master/test/test2.asm
[generic]                   31      55  56.4% -lh5- 558d Aug 20 02:19 gasm80-master/test/test2.bin
[generic]                   26      26 100.0% -lh0- 18e7 Aug 20 02:19 gasm80-master/test/test2.txt
[generic]                  592    1651  35.9% -lh5- 1899 Aug 20 02:19 gasm80-master/test/test6502.asm
[generic]                  276     321  86.0% -lh5- 742f Aug 20 02:19 gasm80-master/test/test6502.bin
[generic]                 1623    6574  24.7% -lh5- fe4d Aug 20 02:19 gasm80-master/test/test6502.lst
[generic]                21173   59956  35.3% -lh5- 9b36 Aug 25 00:15 gasm80-master/gasm80
[generic]                22203   41860  53.0% -lh5- 75ef Aug 25 00:46 gasm80-master/gasm80.68k
[generic]                   83      91  91.2% -lh5- 590e Aug 25 00:47 gasm80-master/SCOPTIONS
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 Total        18 files   71054  227253  31.3%            Aug 25 02:42