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Topics - Psidum

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Master EverDrive / Issue with new Everdrive
« on: June 10, 2019, 04:23 AM »
Hey,

We picked up an issue with the 4MB Everdrive. Discussion can be found at the end of this thread at SMS Power http://www.smspower.org/forums/16600-CodingCompetition2017BadAppleByPsidumCalindroRushJet1Sim#106441

Past the first 1MB everything appears to be mirrored. My guess would be you have some legacy code applying & $3F to bank numbers before use. If you have any questions send Calindro or myself a message.

Psidum.

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Mega EverDrive / Mega Everdrive - Issue with SMS Games
« on: June 11, 2014, 10:45 PM »
Meow,

Purchased a Mega Everdrive. Mega Drive games work fine, SMS games have no video. Games are running, there is sound and i can tell it is responding to game input however no video just blue screen.

Guessing it is a problem with my Mega Drive. Maybe something wrong with the SMS video mode.

Anyone experienced anything similar?

Mega Drive model is MK-1631-50 (Standard MD2 AU).

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Mega EverDrive / SMS Homebrew - Mega Everdrive vs SMS Everdrive
« on: May 23, 2014, 06:45 AM »
Meow,

Seeking advice.

Problem: About to buy everdrive for sms homebrew. SMS Everdrive or Mega Everdrive?

Concerns: MD/Genesis SMS Support + Mega Everdrive accuracy and compatibility.
- No mode 0 support : don't care
- No sprite scaling support : don't care
- No 224 line mode : don't care
- Support for all existing mappers (SEGA / Codemasters) : care
- 8 MEGA POWER compatibility : very care
- MD/Genesis support for on cart RAM : very care
- Everdrive units support for on cart RAM (and number of RAM banks supported?) : very care
- Accurate Z80 to/from VDP bandwidth and timings for respective PAL/NTSC regions : care bear care!

Additional information, experiences, perspectives regarding this impending decision appreciated.

Thanks in advance :)

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