29 lines
1.2 KiB
Forth
29 lines
1.2 KiB
Forth
\ Copyright 2021 Bradley D. Nelson
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\
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\ Licensed under the Apache License, Version 2.0 (the "License");
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\ you may not use this file except in compliance with the License.
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\ You may obtain a copy of the License at
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\
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\ http://www.apache.org/licenses/LICENSE-2.0
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\
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\ Unless required by applicable law or agreed to in writing, software
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\ distributed under the License is distributed on an "AS IS" BASIS,
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\ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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\ See the License for the specific language governing permissions and
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\ limitations under the License.
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also posix also termios
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s" /dev/ttyS3" r/w O_NONBLOCK or open-file throw constant remote
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256 constant ICRNL
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create remote-termios sizeof(termios) allot
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remote remote-termios tcgetattr drop
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remote-termios .c_lflag l@ ICRNL INVERT and remote-termios .c_lflag l!
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remote TCSAFLUSH remote-termios tcsetattr drop
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: remote-type ( a n -- ) remote write-file throw ;
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: remote-emit ( ch -- ) >r rp@ 1 remote-type rdrop ;
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: remote-key ( -- ch|0 )
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0 >r rp@ 1 remote read-file dup EAGAIN = if rdrop 2drop 0 exit then
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throw if r> else rdrop 0 then ;
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: terminal begin remote-key dup if emit else drop then
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key? if key remote-emit then again ;
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