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    0th bit/Everdrive forums aren't fully working due to wrong id's from importer. (fixing just takes time) 0th bit posts will be added. Only major issue is the importer copied html/classes which show so need to find a way to strip/convert. this was caused from converting html rips back to SQL. This archive doesn't contain emails/private messages/ip's as we could only convert what google could see/crawl.

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    WTB: SNASM ISA card (for Amiga, Genesis SNASM interfaces)

    Hello! I'm looking for the first generation SNASM ISA card for Amiga Cross Products dev card and Genesis/Mega Drive breakout box. Cheers!
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    Katana (HKT-01) "Failed to detect debug support"

    Hi! This Katana was working, and now it's not. The DA-Check tool complains of: <div class="bbCodeBlock bbCodeCode"> <div class="type">Code:</div> <pre>Failed to detect debug support SALSA report error &lt;SALSA DACON: The full stub failed to load/reset&gt;</pre> </div> SCSI interface...
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    WTB: SNASM 68000 extra bits (card, cartridge end, software)

    Hello! I have a SNASM 68000 development box (and manual) that's missing everything else - presumably it had some sort of cartridge "business end" to plug into a Mega Drive, and a PCI/ISA card for the host PC side, and some software. I understand this is a pretty large ask considering...
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    SEGA 32X development board - high res images + PSU query

    I had access to a DSLR for a few hours, so here are some high resolution shots of a SEGA 32X development board: <a class="externalLink" href="https://www.mediafire.com/?s1x5kp5m9bfp8ej" rel="nofollow" target="_blank">https://www.mediafire.com/?s1x5kp5m9bfp8ej</a> (575mb archive). There's not...
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    Cross Products SNASM2 68000 Development System Users Manual 2.01

    Second set of docs I've been scanning over the weekend - the SNASM2 68000 Development System Users Manual 2.01 (1993/1994). Includes: - Quick Reference Guide - SNASM2 hardware installation - SNASM2 software installation - Exception vectors - SNASM68K.EXE manual - SNBUG68K.EXE...
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    Cross Products SNASM68K User Manual (8/8/1991)

    I've been sitting on various pieces of documentation for some time, but I've only recently had sufficient down time and access to a scanner to get these things out into the wild. Here's the SNASM68K User Manual from 1991. It includes the following: - SNASM components overview, SNASM...
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    Genesis VDP memory map - is 0xD000 usable if Window Plane is disabled?

    I've got my regs configured as: <div class="bbCodeBlock bbCodeQuote"> <blockquote class="quoteContainer">
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    Mega Drive to GBS-8220 via SCART - having sync issues

    Hi! I went and bought one of <a class="externalLink" href="http://www.ebay.co.uk/itm/GBS-8220-RGB-CGA-EGA-YUV-to-VGA-ARCADE-VIDEO-CONVERTER-BOARD-Latest-Software-/120967105011" rel="nofollow" target="_blank">these</a> , with the aim of hooking my MegaCD devkit up to a Dell UltraSharp 15"...
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    WTB: SEGA Mega Drive to VGA solution

    Hi! I'm looking to buy a setup which allows me to connect my Mega Drive devkit's scart output to the D-SUB of a Dell UltraSharp 15" LCD for pixel perfect debugging. I've done some reading and the solutions available are either super expensive/rare eBay finds (scalars and processors) or...
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    Packaging up a homebrew SEGA Genesis ROM with an emulator for commercial use

    Hi! I'm developing a SEGA Genesis game which I hope to release commercially, and I'm planning ahead for porting to other platforms (specifically Windows, Android and iOS) after the initial release. The most obvious solution would be to package it up inside/alongside an emulator, but I'm...
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    68K, VDP - Can't read from CRAM

    Hi! I'll be brief - I can't read a word from CRAM. Here's my test case: <span style="font-family: 'courier new'"> ; Write to colour 0,0 move.l #0xC0000000, vdp_control move.w #0xABCD, vdp_data ; Read from colour 0,0 move.l #0x00000020, vdp_control move.w vdp_data, d0</span> d0...
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    68000 assembly - subroutine calling conventions

    There isn't a general programming subforum so it'll have to do here! I'm coding for the Genesis anyway so close enough <img alt=":)" class="mceSmilieSprite mceSmilie1" src="styles/default/xenforo/clear.png" title="Smile :)"/> So far I've been gathering a game framework in small pieces...
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    SNASM2 Debugger vs. Cross Products MegaCD kit

    Hi all, I finally have my SNASM2 and SNSERVER ISA cards fully functioning! Now I'm trying to figure out the debugging process. I've successfully built my code with SNASM68K.EXE, outputting a COFF file with debugging info, and the debugger (SNBUG68K.EXE) recognises the debug info and...
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    A blog of my experience learning 68k Megadrive programming

    <span style="color: #000000"><span style="font-family: 'Verdana'">Hi! [/span][/span] <span style="color: #000000"><span style="font-family: 'Verdana'">For the past year or so I've been learning 68k assembler on the SEGA Megadrive, and I've been blogging the whole learning process in the...
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    SH2 in-circuit emulator high resolution images

    I was asked to provide some high res images of my SH2 ICE module, so I might as well share for all! <a class="LbTrigger" data-href="misc/lightbox" href="https://assemblergames.com/attachments/sh2_ice_thumb-jpg.6036/" target="_blank"><img alt="SH2_ICE_Thumb.jpg" class="bbCodeImage LbImage"...
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    ZAX ERX318 User Manual and Command Manual

    I've been sitting on these for a while, since my feed scanner is faulty and I've been trying to find replacement parts. This weekend I got impatient and started scanning them in page by page using a flatbed! Introducing the User Manual and Command Manual for the ZAX ERX318 in-circuit...
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    Problems installing SNASM2 PCI card

    Problems installing SNASM2 ISA card [Solved] Hi, I'm trying to install a Cross Products SNASM2 ISA card into a PC I've just built for the job (an Asus P2B board, Pentium II 350mhz, 160mb RAM and Windows 95). I've set the dip switches to match the default configuration in the manual, and the...
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    Ramping up the volume on the PSG causes artifacts

    Hi, I'm trying to implement a volume fader on the PSG (gearing up to making software ADSR envelopes), but with only 16 possible attenuation values (0xF to 0x0) there are noticeable "steps" when ramping it up over 1 second. Is there anything I can do to minimise the artifacts? Any tricks...
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    Bought a domain name on eBay, Nominet transfer complete, now what?

    Good evening all! I bought a domain name on eBay, the seller sent me a Nominet transfer request which I paid for after creating an account, and Nominet now shows that I am the current registrant. However, the registRAR shows GoDaddy.com, and I have no idea what happens now. I tried creating...
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    Sega Megadrive - sprite flipping on the fly, major confusion!

    Hi all. I'm at my wits end with this one! I'm trying to flip a sprite at runtime, by changing the 5th byte in my sprite descriptor struct (live in VRAM). My sprite: <span style="font-family: 'courier new'">RunningManSprite: [/span] <div style="padding-left: 30px"><span...