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Messages - Psidum

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1
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.

2
Mega EverDrive / Re: Mega Everdrive - Issue with SMS Games
« on: June 15, 2014, 07:26 AM »
Whats strange about it is the sound card is access via the video card so if the video card was completely out there should be no sound. Still waiting for new md to arrive.

3
Mega EverDrive / Re: Mega Everdrive - Issue with SMS Games
« on: June 12, 2014, 07:44 AM »
I meant sms and 32x separately. Those are the two systems i have been programming for.

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Mega EverDrive / Re: Mega Everdrive - Issue with SMS Games
« on: June 12, 2014, 06:42 AM »
- Mega Drive model is MK-1631-50 (Standard Mega Drive 2 AU).
- Direct connection to the unit (no 32x addon).

There is no miss match of components here, the MK-1631-50 supports master system games and I am using it the right way.

I am writing this down as a problem with the Mega Drive unit itself. It was sitting in storage for years and I only set it up yesterday when the Ever Drive arrived. I have since noticed some issues with Mega Drive titles (strangely with original carts and not with the Ever Drive unit). Even after cleaning pins and ensuring nothing is bent.

This gives me an excuse to purchase a refurbished Mega Drive 2 with RCA outputs. Now to do some research regarding compatibility issues master system + 32x.

5
Mega EverDrive / Re: Mega Everdrive - Issue with SMS Games
« on: June 11, 2014, 11:02 PM »
goodsms 3.20
binary (well .sms but same thing)

It is safe to say that the roms are fine (they are clearly running). Sound is fine, controls seam responsive. It is just an issue with the VDP probably MODE 4 graphics.

As I said guessing it is the hardware, just seeking info as it seams strange that the audio still works.

6
Mega EverDrive / Re: Mega Everdrive - Issue with SMS Games
« on: June 11, 2014, 10:58 PM »
MEGA os 9

7
Mega EverDrive / Re: Mega Everdrive - Issue with SMS Games
« on: June 11, 2014, 10:53 PM »
SMS games.

Tried Sonic the Hedgehog, Wonderboy, Wonderboy III many others.

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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).

9
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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