Video: Lesson P4 - Bitmap Functions on the Atari Lynx

Post Reply
User avatar
akuyou
Posts: 432
Joined: Mon Apr 22, 2019 3:19 am
Contact:

Video: Lesson P4 - Bitmap Functions on the Atari Lynx

Post by akuyou » Wed Apr 24, 2019 9:43 pm



http://www.chibiakumas.com/6502/platform.php#LessonP4

Unlike most of our systems The Lynx has a 16 color Bitmap screen - effectively we can just write data to it - one nibble per color to ram, and it will appear on screen!

We do need to do a bit of setup first to get it working!
Chibi Akuma(s) Comedy-Horror 8-bit Bullet Hell shooter! // 「チビ悪魔」可笑しいゴシックSTG ! // Work in Progress: ChibiAliens

Interested in CPU's :Z80,6502,68000,6809,ARM,8086,RISC-V
Learning: 65816,ARM,8086,6809

laoong
Posts: 9
Joined: Thu Aug 08, 2019 10:51 am

Re: Video: Lesson P4 - Bitmap Functions on the Atari Lynx

Post by laoong » Tue Apr 07, 2020 8:43 am

After I've run the example on PC-Engine I thought that I could check the Lynx version as well.

Here's the result.

It's almost working :)

I've stumbled on such things many times - Handy isn't reflecting real hardware very well.

Image

User avatar
akuyou
Posts: 432
Joined: Mon Apr 22, 2019 3:19 am
Contact:

Re: Video: Lesson P4 - Bitmap Functions on the Atari Lynx

Post by akuyou » Tue Apr 07, 2020 9:58 pm

Hmm, the sprite is there, but the font isn't ?
I'll have a look at the code... if you figure anything out, let me know and I'll change the code accordingly.
Chibi Akuma(s) Comedy-Horror 8-bit Bullet Hell shooter! // 「チビ悪魔」可笑しいゴシックSTG ! // Work in Progress: ChibiAliens

Interested in CPU's :Z80,6502,68000,6809,ARM,8086,RISC-V
Learning: 65816,ARM,8086,6809

Post Reply

Return to “Atari Lynx Assembly Programming”