You are not logged in. Your edit will be placed in a queue until it is peer reviewed.
We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.
-
1Without checking: The VIC had to "steal" memory cycles from the 6502 for RAM access, so I suspect it's the same with the Z80.dirkt– dirkt2017-02-26 19:35:13 +00:00Commented Feb 26, 2017 at 19:35
-
2@dirkt but wouldn't you normally run CPM in 80-column mode, which bypasses the VIC and uses the 8563 VDC (or in DCR models the 8568 DVDC)? The VDC has its own video RAM which suggests it wouldn't effect performance in that mode. Maybe if you were using it in 40-column mode with the VIC due to the lack of a RGBI monitor?mnem– mnem2017-02-27 01:13:48 +00:00Commented Feb 27, 2017 at 1:13
Add a comment
|
How to Edit
- Correct minor typos or mistakes
- Clarify meaning without changing it
- Add related resources or links
- Always respect the author’s intent
- Don’t use edits to reply to the author
How to Format
-
create code fences with backticks ` or tildes ~
```
like so
``` -
add language identifier to highlight code
```python
def function(foo):
print(foo)
``` - put returns between paragraphs
- for linebreak add 2 spaces at end
- _italic_ or **bold**
- quote by placing > at start of line
- to make links (use https whenever possible)
<https://example.com>[example](https://example.com)<a href="https://example.com">example</a>
How to Tag
A tag is a keyword or label that categorizes your question with other, similar questions. Choose one or more (up to 5) tags that will help answerers to find and interpret your question.
- complete the sentence: my question is about...
- use tags that describe things or concepts that are essential, not incidental to your question
- favor using existing popular tags
- read the descriptions that appear below the tag
If your question is primarily about a topic for which you can't find a tag:
- combine multiple words into single-words with hyphens (e.g. ms-dos), up to a maximum of 35 characters
- creating new tags is a privilege; if you can't yet create a tag you need, then post this question without it, then ask the community to create it for you