Z80:DevTuesday

2021 week 5 (Feb 2)

Ped7g (based on Omega's code from VOID demo) - second version - ULA attributes fade in/out:
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source @github gists

2021 week 2 (Jan 12)

Ped7g (based on Omega's code from VOID demo) - ULA attributes fade in/out (code-size focused):
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source @github gists

2021 week 1 (Jan 5)

Ped7g (based on work and discussions of fellow Next devs) - detect Z80N CPU:
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source+NEX @github

2020 week 51 (Dec 15)

Busy/Baze/Zilog/Ped7g - decode 5-bit-letter bitstream in 19 bytes:
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source+NEX @github

2020 week 45 (Nov 3)

Ped7g - displaying all 512 colours which ZX Next could produce on screen:
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source+NEX @github

2020 week 44 (Oct 27)

Ped7g - assembly snippets: integer comparison and finding total number of video-lines:
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source @github

em00k - loadbmp various examples:
source @github

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):
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source @gitlab snippets

Matt Davies - Z80N Bit Arrays:
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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:
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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):
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source @github

2020 week 19 (May 5)

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

2020 week 12 (Mar 17)

Matt Davies - DMA copy and fill:
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source @pastebin

2020 week 11 (Mar 10)

Matt Davies - A string compare routine:
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source @pastebin

2020 week 10 (Mar 3)

em0000k - Simple Tilemap Example:
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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:
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source @pastebin

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

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

2020 week 7 (Feb 11)

Matt Davies - Memory page allocation:
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source @pastebin

David Saphier - DMA sample player:
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source @pastebin

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