https://relvokcor.xyz/~stoned/tags/c64/ Recent content in C64 on under THe influenCe of TeCH Hugo en-us Mon, 11 Aug 2025 00:13:36 -0700 https://relvokcor.xyz/~stoned/posts/c64-programmers-ref-findings/ Mon, 11 Aug 2025 00:13:36 -0700 https://relvokcor.xyz/~stoned/posts/c64-programmers-ref-findings/ <h3 id="character-set-accessibility-varies-by-vic-ii-bank">Character Set Accessibility Varies by VIC-II Bank</h3> <p>On page 124, the footnote states:</p> <blockquote> <p>&ldquo;The Commodore 64 character set is not available to the VIC-II chip in BANKS 1 and 3.&rdquo;
</p></blockquote> <p>Many programmers may know about video bank switching, but may not realize that if you switch to certain banks (specifically banks 1 or 3), the character generator ROM is not accessible to the VIC-II for screen rendering. This affects custom character graphics and can cause “garbage” characters if not properly managed.</p>