Difference between revisions of "Z80:DevTuesday"

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(adding double-buffered ULA drawing example)
(week 42 with v2 of ULA flipping...)
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==== 2020 week 42 (Oct 13) ====
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Ped7g - v2 of using ZX128 shadow ULA screen and nextreg $69 for "double buffering":<br>
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[https://gist.github.com/ped7g/59e7b3941177444ffb48ac974f3e8ba6 v2 source @github gists] - using also DMA and custom IM1 routine
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==== 2020 week 41 (Oct 6) ====
 
==== 2020 week 41 (Oct 6) ====
  
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Ped7g - using ZX128 shadow ULA screen and nextreg $69 for "double buffering":<br>
 
Ped7g - using ZX128 shadow ULA screen and nextreg $69 for "double buffering":<br>
[https://gist.github.com/ped7g/80fd30f8c731b9f52b3952033a6a8564 source @github gists]
+
[https://gist.github.com/ped7g/80fd30f8c731b9f52b3952033a6a8564 v1 source @github gists]
  
 
==== 2020 week 32 (Aug 4) ====
 
==== 2020 week 32 (Aug 4) ====

Revision as of 23:03, 12 October 2020

2020 week 42 (Oct 13)

Ped7g - v2 of using ZX128 shadow ULA screen and nextreg $69 for "double buffering":
v2 source @github gists - using also DMA and custom IM1 routine

2020 week 41 (Oct 6)

Matt Davies - simple game controls (reads "OPQA space" and MD1 joystick):
facebook post
source @gitlab snippets

Matt Davies - Z80N Bit Arrays:
facebook post
source @gitlab snippets

Ped7g - using ZX128 shadow ULA screen and nextreg $69 for "double buffering":
v1 source @github gists

2020 week 32 (Aug 4)

Ped7g - reading Atari "driving controller" on Kempston 2 port:
facebook post
source and NEX file @github

2020 week 22 (May 26)

Ped7g - palette fade-out effect in Layer2 320x256 mode (using linear interpolation with Bresenham algorithm):
facebook post
source @github

2020 week 19 (May 5)

Ped7g - big-picture scroll in Layer2 320x256 mode:
facebook post
source @github

2020 week 12 (Mar 17)

Matt Davies - DMA copy and fill:
facebook post
source @pastebin

2020 week 11 (Mar 10)

Matt Davies - A string compare routine:
facebook post
source @pastebin

2020 week 10 (Mar 3)

em0000k - Simple Tilemap Example:
facebook post
source @github

Ped7g - clamping HL value to -0x100..+0x100 (16b signed math):
source @gist.github

2020 week 8 (Feb 18)

Matt Davies - Some simple utilities:
facebook post
source @pastebin

em0000k - DMA samples player (one channel, different samples in succession):
forum post
source @pastebin

Chris Kirby - simple cooperative multitasking system for z80.
facebook post
source @pastebin

2020 week 7 (Feb 11)

Matt Davies - Memory page allocation:
facebook post
source @pastebin

David Saphier - DMA sample player:
facebook post
source @pastebin

Robin Verhagen-Guest - Multiframe Copper program:
facebook post
source @pastebin