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Topics - Psidum

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

We picked up an issue with the 4MB Everdrive. Discussion can be found at the end of this thread at SMS Power

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.


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

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).

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

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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