reading simultaneous keys pressed

[nitrofurano]

it doens't work... - are you sure this snippet and the used library are working fine?
the code (in the spectrum) looks like hanging - it doesn't provide any feedback

btw, has ./library/keys.bas 3535 bytes, 147 lines, and the md5sum is 8eb7625442d3c108ee6b90ded47aff8c?

Code:

guest@macbook_mint1 /mnt/sda4/trabalhos/programacao/8bit/zxspectrum/ftpupload/zxspectrumstuff_20111001/borielzxbasiccompiler/_sandboxes/_sandbox_03 $ zxb.py -tB
a _keytest.bas
Generating LALR tables
WARNING: Token 'BIN' defined, but not used
WARNING: There is 1 unused token
Generating LALR tables
WARNING: Token 'UMINUS' defined, but not used
WARNING: There is 1 unused token
guest@macbook_mint1 /mnt/sda4/trabalhos/programacao/8bit/zxspectrum/ftpupload/zxspectrumstuff_20111001/borielzxbasiccompiler/_sandboxes/_sandbox_03 $ zxb.py --v
ersion
Generating LALR tables
WARNING: Token 'BIN' defined, but not used
WARNING: There is 1 unused token
Generating LALR tables
WARNING: Token 'UMINUS' defined, but not used
WARNING: There is 1 unused token
zxb.py 1.2.8-s758
guest@macbook_mint1 /mnt/sda4/trabalhos/programacao/8bit/zxspectrum/ftpupload/zxspectrumstuff_20111001/borielzxbasiccompiler/_sandboxes/_sandbox_03 $