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Groups > comp.lang.forth > #46747
| From | anton@mips.complang.tuwien.ac.at (Anton Ertl) |
|---|---|
| Newsgroups | comp.lang.forth |
| Subject | Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? |
| Date | 2016-04-24 20:18 +0000 |
| Organization | Institut fuer Computersprachen, Technische Universitaet Wien |
| Message-ID | <2016Apr24.221835@mips.complang.tuwien.ac.at> (permalink) |
| References | (5 earlier) <d7cf3640-40bd-489a-856e-c5441b93d943@googlegroups.com> <nf8r9v$4qn$1@dont-email.me> <d_qdnVnUrr2Cf4XKnZ2dnUU7-KvNnZ2d@supernews.com> <2016Apr24.174508@mips.complang.tuwien.ac.at> <cfydnXQ0r-3YvIDKnZ2dnUU7-QHNnZ2d@supernews.com> |
"Elizabeth D. Rather" <erather@forth.com> writes:
>On 4/24/16 5:45 AM, Anton Ertl wrote:
>> Andrew Haley <andrew29@littlepinkcloud.invalid> writes:
>>> That's right. The early Forth way to do it (from Chuck Moore's Forth,
>>> Inc. days on) was to have a task per serial port. That task's TYPE
>>> and EXPECT (and also STRAIGHT, for raw I/O) use its serial port. You
>>> don't need non- blocking I/O or anything like that because the task
>>> can handle it asynchronously, and the task can be tiny.
>>
>> How does full duplex work with that? Do you have one task for reading
>> from the port and one task for writing to it? That would be two tasks
>> per port, then.
>
>No. The serial port is the task's "terminal". A task has a current input
>device and a current output device, and the serial port normally
>fulfills both functions.
But then I don't see how "you don't need non-blocking I/O" works.
E.g., the task EMITs to the serial port and that blocks because the
other side is not ready; meanwhile, input is coming on the serial
port. After the hardware buffers are full, data will be lost.
Or, the task KEYs from the serial port and waits for input; meanwhile,
some other task C wants to tell the serial-port task to send
something, and then something more. But the serial-port task is
blocked and not reacting to the message, so at some point it's mailbox
is full, and C has to decide whether it wants to overwrite the stuff
in the mail box, or block itself.
Anyway, certainly not a full duplex connection.
- anton
--
M. Anton Ertl http://www.complang.tuwien.ac.at/anton/home.html
comp.lang.forth FAQs: http://www.complang.tuwien.ac.at/forth/faq/toc.html
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BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 00:14 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? hughaguilar96@gmail.com - 2016-04-06 00:18 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Martin Nicholas <reply-2016@mgn.org.uk> - 2016-04-06 10:13 +0100
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 02:32 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Julian Fondren <julian.fondren@gmail.com> - 2016-04-06 03:25 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 05:07 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Mark Wills <markwills1970@gmail.com> - 2016-04-06 06:10 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Raimond Dragomir <raimond.dragomir@gmail.com> - 2016-04-06 07:26 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Julian Fondren <julian.fondren@gmail.com> - 2016-04-06 07:38 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 08:08 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Raimond Dragomir <raimond.dragomir@gmail.com> - 2016-04-06 08:18 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? lawrencedo99@gmail.com - 2016-06-15 21:34 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? hughaguilar96@gmail.com - 2016-06-16 00:43 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Julian Fondren <julian.fondren@gmail.com> - 2016-06-19 03:54 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 07:55 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Raimond Dragomir <raimond.dragomir@gmail.com> - 2016-04-06 08:13 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 10:17 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? hughaguilar96@gmail.com - 2016-04-07 00:17 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Mark Wills <markwills1970@gmail.com> - 2016-04-07 01:27 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-04-07 09:29 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-07 03:27 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-04-07 12:11 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Gerard Sontag <gerardsontag@gmail.com> - 2016-04-07 05:39 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-04-07 11:45 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? hughaguilar96@gmail.com - 2016-04-09 00:37 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-04-06 14:47 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? hughaguilar96@gmail.com - 2016-04-06 03:10 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 03:32 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Albert van der Horst <albert@spenarnc.xs4all.nl> - 2016-04-06 10:48 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 04:22 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 08:32 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-06 11:44 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-06 12:43 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-04-07 03:31 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-07 00:40 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? visualforth@rocketmail.com - 2016-04-06 18:16 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-18 09:49 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Mark Wills <markwills1970@gmail.com> - 2016-04-18 13:20 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-19 04:04 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Ron Aaron <rambamist@gmail.com> - 2016-04-19 12:11 +0300
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-19 05:15 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Ron Aaron <rambamist@gmail.com> - 2016-04-19 13:31 +0300
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Raimond Dragomir <raimond.dragomir@gmail.com> - 2016-04-19 02:12 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-04-19 11:48 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-20 04:07 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? minforth@arcor.de - 2016-04-20 04:35 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Bernd Paysan <bernd.paysan@gmx.de> - 2016-04-20 21:11 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? minforth@arcor.de - 2016-04-21 05:31 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-21 09:22 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-04-24 15:45 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-24 11:23 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? lawrencedo99@gmail.com - 2016-06-15 21:29 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? "Elizabeth D. Rather" <erather@forth.com> - 2016-04-24 09:40 -1000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-04-24 20:18 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? "Elizabeth D. Rather" <erather@forth.com> - 2016-04-24 14:56 -1000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-25 03:13 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-25 14:23 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? "Elizabeth D. Rather" <erather@forth.com> - 2016-04-25 14:07 -1000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-25 21:36 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-04-26 11:32 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? "Elizabeth D. Rather" <erather@forth.com> - 2016-04-26 08:39 -1000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2016-04-26 19:20 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? "Elizabeth D. Rather" <erather@forth.com> - 2016-04-26 13:09 -1000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Albert van der Horst <albert@cherry.spenarnc.xs4all.nl> - 2016-04-27 17:55 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? hughaguilar96@gmail.com - 2016-04-27 01:54 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-26 02:47 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-26 01:12 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-26 04:04 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-26 02:53 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-26 08:23 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-27 17:49 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-28 03:47 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Albert van der Horst <albert@cherry.spenarnc.xs4all.nl> - 2016-04-28 11:50 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? hughaguilar96@gmail.com - 2016-04-29 00:11 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Albert van der Horst <albert@cherry.spenarnc.xs4all.nl> - 2016-04-26 11:26 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? foxaudioresearch@gmail.com - 2016-04-26 07:04 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Andrew Haley <andrew29@littlepinkcloud.invalid> - 2016-04-26 09:29 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-26 10:47 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? visualforth@rocketmail.com - 2016-04-20 16:04 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-04-19 10:47 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-04-21 11:54 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? kiy <kiyoneda@gmail.com> - 2016-05-15 17:20 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Bernd Paysan <bernd.paysan@gmx.de> - 2016-06-04 22:01 +0000
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-06-05 08:53 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-06-05 08:55 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? visualforth@rocketmail.com - 2016-06-06 19:47 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-06-07 10:07 +0100
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? endlessboomcapitalism@gmail.com - 2016-06-07 08:43 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-06-19 01:20 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-08-06 04:13 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-08-06 13:32 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Cecil Bayona <cbayona@cbayona.com> - 2016-08-06 14:27 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-08-07 03:46 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-08-07 12:31 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-08-07 03:39 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-08-07 12:30 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-08-09 08:20 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-08-09 13:52 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-08-11 03:41 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-08-11 17:56 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-08-11 22:50 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Paul Rubin <no.email@nospam.invalid> - 2016-08-11 23:13 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? Cecil Bayona <cbayona@cbayona.com> - 2016-08-12 03:43 -0500
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? hughaguilar96@gmail.com - 2016-08-11 23:29 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-08-12 02:48 -0400
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? JUERGEN <epldfpga@aol.com> - 2016-08-12 05:17 -0700
Re: BBC MicroBit has arrived - which Forth in Python is recommended for now? rickman <gnuarm@gmail.com> - 2016-08-12 11:11 -0400
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