Blogs

All members are invited to blog on Applefritter. Weblogs should generally be of a technical nature and should be written in such a way as to still be readable and useful 50 years from now. Please do not embed outside media. Images and videos can be uploaded via the Media Browser. Files should either be attached to the blog post or uploaded to the file libraries.

When you post to your blog it will appear on this index and on your personal blog page. Once you've made a few posts, contact me about having a graphic added on the top of this page.

PRINTDCI quick-and-easy ASM printing routine

Submitted by S.Elliott on March 2, 2023 - 8:43pm

Synopsis

This short routine makes it easy to print strings from assembly code, or even from the mini-assembler.  (Especially in the Enhanced monitor, which lets you enter ASCII characters using a ` prefix.)

 

Detail

Assemblers like EDASM have a directive called DCI that encodes an ASCII string in such a way that the end of the string can be distinguished by checking its high bit.  The DCI statement converts your string into ASCII bytes so that most characters have the high bit cleared, but the last character has its high bit set.

Tags: 
asm

ACHUS software based multi-voice synthesizer

Submitted by S.Elliott on March 1, 2023 - 5:47pm

ACHUS was a multi-voice software synthesizer I tried to develop for Nibble magazine in the 1980s.

Tags: 
sound

INFOCOM Wishbringer and Leather Babes of Phobos

Submitted by Khaibitgfx on March 1, 2023 - 3:25pm

Wishbringer and Leather Babes

Infocom Diskette Sleeve and Floppy Label variety.

 

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