51 lines
1.4 KiB
Forth
51 lines
1.4 KiB
Forth
\ Copyright 2023 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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( Add a yielding task so pause yields )
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internals definitions
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: yield-step raw-yield yield ;
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' yield-step 100 100 task yield-task
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yield-task start-task
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forth definitions
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( Initial file handles )
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0 constant stdin
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1 constant stdout
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2 constant stderr
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( Set up Basic I/O )
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also internals definitions
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: setup-saving-base ; ( TODO: implement. )
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variable last-key -1 last-key !
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forth definitions internals
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: default-type ( a n -- ) stderr write-file throw ;
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: default-key? ( -- f )
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last-key @ 0< if 1000 getchar_timeout_us last-key ! then
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last-key @ 0< 0=
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;
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: default-key ( -- ch )
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begin default-key? 0= while pause repeat
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last-key @ -1 last-key !
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;
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previous
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' default-type is type
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' default-key is key
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' default-key? is key?
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' raw-terminate is terminate
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-1 echo !
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( Setup entry )
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internals : ok ." uEforth" raw-ok ; forth
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