DYCP 2018 (A8)

So Blok Copy on the Atari 8-bit wasn’t the only Cosine contribution to the New Years Disk 2018 because Cosine also churned out a little demo called DYCP 2018. And yes, I know that’s a terrible title but I was taking the Roy Walker approach to naming for this one and, after scratching my head for a few hours, nothing better presented itself!

The main reason for this one is that Andy Vaisey sent along a great cover of the loading music from Uridium 2 on the Amiga; he’d produced it whilst getting his head around the Atari 8-bit’s POKEY sound hardware but the tune was triple speed (so is called 150 times a second rather than just 50) and needed code around it which wouldn’t mind being interrupted from time to time if you’ll excuse the “pun”. I wasn’t thinking about that as I delved through my workfiles but realised that one of my five year old DYCP prototypes would work in that respect and spent a morning making the two work together.

Why is there a copy of the C64’s power up screen here…? That’s mostly because the DYCP routine has been written the “C64 way” using one character set and arranging everything in memory to make drawing the letters as fast and efficient as possible.

One thought on “DYCP 2018 (A8)

  1. Yeah, sorry for making it 3x speed. Two reasons… first, I was experimenting with all the features in the editor and second, I just couldn’t get it sounding right at 1x. I have a 1x speed version here and although it sounds ‘pleasant’ enough, it just doesn’t sound correct in my (deaf) ears…

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