Apple-2-Tools/AppleWin
1
0
Fork 0
mirror of https://github.com/AppleWin/AppleWin.git synced 2024-06-23 21:29:32 +00:00
Code Issues Projects Releases Wiki Activity

Help: Update full-speed info now that floating-bus is supported

Browse Source
This commit is contained in:
tomcw 2018-02-02 21:21:18 +00:00
parent 839812ab7d
commit 9c7f71ee8c
1 changed files with 2 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
help/fullspeed.html
View File

@ -30,17 +30,12 @@
<p style="FONT-WEIGHT: bold">Limitations and things to bear in mind:</p>
<ul>
<li>Full speed mode favours speed over video accuracy:
<li>Full-speed mode favours speed over video accuracy:
<ul>
<li>The Apple II's video is only updated periodically (once a wall-clock 60Hz frame) instead of each opcode.
<li>Split-mode video (eg. French Touch demos) won't render correctly.
</ul>
<li>All sound (speaker, Mockingboard, etc) is muted.
<li>Video-based timing/synchronisation loops won't work correctly.
<ul>
<li>The video-scanner won't advance its h/v position, so the floating bus will always return the same value.
<li>Specifically code that does Apple II+ VBlank detection (using the floating bus) will hang, until full-speed mode is disabled. (But Apple //e soft-switch VBlank detection does work.)
</ul>
<li>Card detection routines (that rely on floating bus) won't work correctly.
<li>One of your PC's CPU cores will run at 100%.
<ul>
<li>EG. Simply boot the Apple II (or //e) without a disk in drive-1.