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Minor tweaks

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Mark the "info" window as read-only.

When the project closes, clear the contents of the Symbols and
Notes windows.

Clarify some Apple II I/O definitions.
This commit is contained in:
Andy McFadden
2019-10-21 17:03:13 -07:00
parent bcac8bc6a0
commit 7bbccaf71f
4 changed files with 53 additions and 39 deletions
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SourceGen/RuntimeData/Help/intro.html
+2 -2
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@@ -150,8 +150,8 @@ disassembly of the instruction stream will come out wrong.</p>
Accessing the address can have side effects, like changing between text
and graphics modes. Sometimes reading and writing have different effects.
For example, on later models of the Apple II, reading from
$C000 returns the most recently hit key, while writing to $C000 disables
80 columns.</p>
$C000 returns the most recently hit key, while writing to $C000 changes
how 80-column display memory is mapped.</p>
<p>On a few systems, such as the Atari 2600, RAM, ROM, and registers can
appear at multiple locations, "mirrored" across the address space.</p>