Vampire Killer with Smooth scroll in Coleco

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Par iamweasel2

Hero (549)

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14-01-2020, 23:03

!login ou Inscrivez-vous pour poster

Par erpirao

Paladin (999)

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14-01-2020, 23:54

msx port please!!!!

mmm super game module2:
Super Game Module 2:

Backward compatible with SGM1.
New backward compatible co-processor, 24-bit linear address mode, 5 MIPS.
New video processor, 2 independent scrollable planes, thousands of tile/sprite patterns, 64 sprites on screen. 16 colors per tile/sprite, 256 colors on screen from 32,000 colors. Configurable screen resolution from 256x192 to 320x240 pixels. Zoom and rotation.
New sound processor, powerful and versatile synthesizer with FM, PSG and ADPCM.
High quality analog video (composite, s-video, and RGB) and stereo sound outputs.
Estimated size 8”x4”, similar design to Coleco’s planned Super Game Module.
link
v9990 style?

Par ARTRAG

Enlighted (6330)

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14-01-2020, 23:57

The SGM2 has custom audio and video chips with nothing in common to the v9938 or v9958
An msx port would be almost as difficult as porting the NES version

Par AxelStone

Prophet (2723)

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15-01-2020, 00:19

SGM2 is more or less the same that 32X was for MegaDrive: external addon with custom specs. So really this is not a "MD" game, is a "32X" game.

Par PingPong

Prophet (3499)

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15-01-2020, 09:24

I ve not found which are the sound chip and gfx chip used. Anyone knows?

Par ARTRAG

Enlighted (6330)

Portrait de ARTRAG

15-01-2020, 09:31

Custom design on fpga
But details are still unknown
For a while they have planned to include the F18A core but I think that the option has been dropped

[edit]
no Fpga apparently, it was a long time since I had looked at project

Par Manuel

Ascended (16034)

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15-01-2020, 10:29

I wonder why they do this... how is this related to the original Coleco? Or is this the same thing as when we use V9990 + OPL4 + RAM expansion in a game on a big ROM cartridge on an MSX? Smile

Par iamweasel2

Hero (549)

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15-01-2020, 13:29

It seems to me (from what I read) that Opcode is creating its Coleco 2.0 (in the same way as we have our MSX2). But his Coleco 2.0 has more power than our MSX2.0. His VDP should be comparable with V9990, but it is better in some aspects (sprites etc).

Par iamweasel2

Hero (549)

Portrait de iamweasel2

15-01-2020, 13:32

I can only imagine the huge amount of work involved... It is not "only" graphics replacement what was done. You can see there are changes in gameplay, like a long whip (and you can keep the powerful long whip with another weapon, thing that you can't do in Vampire Killer in MSX).

I wonder what other changes to the gameplay were done.

Par tfh

Paragon (1992)

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15-01-2020, 14:53

Manuel wrote:

I wonder why they do this... how is this related to the original Coleco? Or is this the same thing as when we use V9990 + OPL4 + RAM expansion in a game on a big ROM cartridge on an MSX? Smile

I've had a similar discussion in the Outrun thread...

Quote:

The V9990 is a community thing. A really nice community thing, but not part of the MSX standard. In theory you can put a RPi on a PCB and hook it up to a cartridge slot. Are we still talking MSX here? I've seen a GameDuino hooked up to the C64 userport. Is that still C64? Especially the fact you need seperate outputs (Both with V9990 on the MSX as with the GameDuino on C64). You're just controlling external hardware. For me it's loosing the essence of the original machine, being it C64 or MSX.

Par Manuel

Ascended (16034)

Portrait de Manuel

15-01-2020, 15:38

Well, for me there are also points in favour:
1. The program code still runs on the original 80s CPU
2. The V9990 is obviously along the lines of MSX video chips. So, it has the same spirit and would have been a logical follow up in the early 90s
3. OPL4 is along the lines of OPLL and MSX-AUDIO (even mostly compatible).

So I find these two quite acceptable extensions, even though they are outside/after the standard. I think they would have been likely part of a later standard if that would have been released. The relationship with the original MSX is clear to me.

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