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CrazyEttin 6 months ago
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  1. 5
      .gitignore
  2. 1193
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  3. 23
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  4. 38
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/*
!/*.asm
!/.gitignore
!/license.md
!/readme.md

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MIT License
===========
Copyright (c) 2022
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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Gidubba
========
Gidubba (Sumerian for 'stylus') is a simple line editor for the
Thingamajig computer architecture. Its git repository can be found at
https://ahti.space/git/crazyettin/Gidubba and that of Thingamajig at
https://ahti.space/git/crazyettin/Thingamajig.
System requirements
-------------------
Gidubba requires a terminal with local echo at address FFFF and
optionally a line printer at address FFFE. The emulator implementation
included in the Thingamajig repository is suitable. If your setup
differs from this you may have to modify the code yourself.
Usage
-----
The commands are individual letters that depending on the command can be
followed by an argument. The argument can be either a hexadecimal line
number between 0 and FFFF or a hash (#), a shortcut for line FFFF. An
argument to a non-existent line will be interpreted as referring to the
line number after the last line.
Commands with an argument:
* I: Insert a line or lines
* D: Delete a line
* L: List a line
Commands with no argument:
* P: Print (requires a printer)
* H: Halt
Both commands and arguments are case-insensitive. In both the command
prompt as well as when inserting lines sending an escape (^[) will allow
retyping the line in question. To finish inserting lines send a
substitute (^Z): the line on which this is done is not saved.
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