30 lines
993 B
Tal
30 lines
993 B
Tal
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( xclock.tal )
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( )
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( runs xclock. )
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( )
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( on some systems, exiting the ROM will kill the xclock process. )
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( on others it won't. if the ROM exits via the system device then )
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( the process will be properly killed. )
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@Console
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|10 &vector $2 ( called when input is ready )
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|12 &read $1 ( read an input byte, e.g. from stdin )
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( 13 - 14 padding )
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|15 &live $1 ( subprocess: 01 alive, ff dead, 00 not running )
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|15 &exit $1 ( subprocess: exit code if dead )
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|17 &type $1 ( input type: 01 stdin, 02 arg, 03 end of arg, 04 end of args )
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|18 &write $1 ( byte to write to stdout )
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|19 &error $1 ( byte to write to stderr )
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( 1a - 1b padding )
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|1c &addr $2 ( subprocess: addr of string to run with /bin/sh -c )
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|1e &mode $1 ( mode bits: 01 write stdin, 02 read stdout, 04 read stderr, 08 kill only )
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|1f &exec $1 ( subprocess: run command )
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|0100
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;cmd .Console/addr DEO2
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#00 .Console/mode DEO
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#01 .Console/exec DEO
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BRK
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@cmd "xclock 00
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