mirror of https://github.com/hsoft/collapseos.git
17 lines
566 B
Plaintext
17 lines
566 B
Plaintext
( We process the 0x20 exception by pre-putting a mask in the
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(HL) we're going to write to. If it wasn't a 0x20, we put a
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0xff mask. If it was a 0x20, we put a 0x7f mask. )
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: @GET,
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A 0x03 LDrn, ( @GET )
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DE COM_DRV_ADDR LDddnn,
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0x28 RSTn, JRNZ, L2 FWR ( maybeerror )
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A ORr,
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CZ RETcc, ( Sending a straight NULL ends the comm. ) ;
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: @PUT, ( @PUT that char back )
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C A LDrr,
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A 0x04 LDrn, ( @PUT )
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0x28 RSTn, JRNZ, L3 FWR ( error )
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A C LDrr, ;
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H@ ORG !
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HL DEST_ADDR LDddnn, ( cont. )
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