English Amiga Board


Go Back   English Amiga Board > Main > Retrogaming General Discussion

 
 
Thread Tools
Old 01 November 2014, 06:41   #41
turrican3
Moon 1969 = amiga 1985

turrican3's Avatar
 
Join Date: Apr 2007
Location: belgium
Age: 42
Posts: 3,290
gng msx turbo r : [ Show youtube player ]
turrican3 is offline  
Old 03 November 2014, 13:36   #42
h0ffman
Registered User
 
Join Date: Aug 2008
Location: Salisbury
Posts: 469
Although the scrolling was bad on the Nemesis / Gradius MSX games, they had much better game play and story than any of the other versions out there. Nemesis II is probably the best of the bunch IMO.

I can't imagine that an OCS Amiga couldn't handle a 1:1 port of most of these games. I even considered doing one for the original Super mario Bros on the NES as there is a complete resource with comments online. My only trouble is I'm not that talented a coder (and don't have time).

I think if you could in some way convert the Z80 -> 68000 then the game engine underneath remains intact. Then it's a case of converting graphics and drawing routines. Sound could be added after that.

Sounds simple enough but I'm sure it's INCREDIBLY complicated.
h0ffman is offline  
Old 03 November 2014, 13:42   #43
Hewitson
Registered User
Hewitson's Avatar
 
Join Date: Feb 2007
Location: Melbourne, Australia
Age: 35
Posts: 2,490
I have no idea about the MSX graphics hardware but I'm assuming that it would be considerably more difficult to convert the graphics on-the-fly to an Amiga-compatible format than with an ST conversion.

Regarding the code, it might be easiest to write a simple Z80 to 68000 converter, and then edit/optimise where necessary. Beats rewriting the whole thing.
Hewitson is offline  
Old 03 November 2014, 18:09   #44
LieutLaww
Registered User

LieutLaww's Avatar
 
Join Date: Jun 2014
Location: Uckfield, UK
Age: 47
Posts: 141
I still have pretty much every Konami game for the MSX that was available in the UK in storage alongside my Toshiba HX-10
LieutLaww is offline  
Old 03 November 2014, 20:56   #45
h0ffman
Registered User
 
Join Date: Aug 2008
Location: Salisbury
Posts: 469
Quote:
Originally Posted by Hewitson View Post
I have no idea about the MSX graphics hardware but I'm assuming that it would be considerably more difficult to convert the graphics on-the-fly to an Amiga-compatible format than with an ST conversion.

Regarding the code, it might be easiest to write a simple Z80 to 68000 converter, and then edit/optimise where necessary. Beats rewriting the whole thing.
That's the principal I was thinking of. I'm pretty sure it's just char map sprites on the msx, hence the chunky 8 pixel "scrolling"

This is something I'd really love to do but just dont know enough about z80 or the hardware to get started.
h0ffman is offline  
Old 04 November 2014, 10:42   #46
gimbal
cheeky scoundrel
gimbal's Avatar
 
Join Date: Nov 2004
Location: Spijkenisse/Netherlands
Age: 37
Posts: 3,027
Don't forget about Eggerland Mystery, what a wonderful puzzle game! Spent AGES on it.

[ Show youtube player ]


This thread is making me want to fire up BlueMSX again.
gimbal is offline  
Old 05 November 2014, 00:20   #47
turrican3
Moon 1969 = amiga 1985

turrican3's Avatar
 
Join Date: Apr 2007
Location: belgium
Age: 42
Posts: 3,290
wip of super mario world msx turbo R !!!
seems really good.
[ Show youtube player ]
turrican3 is offline  
Old 08 November 2014, 19:49   #48
Photon
Moderator
Photon's Avatar
 
Join Date: Nov 2004
Location: Hult / Sweden
Posts: 4,550
Quote:
Originally Posted by h0ffman View Post
That's the principal I was thinking of. I'm pretty sure it's just char map sprites on the msx, hence the chunky 8 pixel "scrolling"

This is something I'd really love to do but just dont know enough about z80 or the hardware to get started.
Translation of instructions has only ever worked - for copycat CPUs with a superset of the original CPU instruction set - in a very limited and standardized zero-hardware environment (character I/O in standardized "pipes").

If you did this and emulated the hardware, the chunky scrolling would be kept and the 68000 would struggle. A 68000 @ 7MHz is - twice as fast as a Z80 at 3.5 MHz...

If I had to play the exact same game on a non-MSX machine, I'd do it in an emulator.

Just seems a bit pointless if the port doesn't improve at least the scrolling and sprite flicker. And then you can't use most of the in-game code, and the rest of the code is usually trivial, much quicker to write some intro screen+music code than struggle with Z80 translation mending for that.

The best approach is to do it like porters did in the 80s: grab the gfx and either nick the code for the game logic or playtest it out, then write the game in a sleepless frenzy for 3 months. No, I'm not volunteering for the job
Photon is offline  
Old 08 November 2014, 23:04   #49
LieutLaww
Registered User

LieutLaww's Avatar
 
Join Date: Jun 2014
Location: Uckfield, UK
Age: 47
Posts: 141
When i first had my Amiga i was considering doing a port of The Maze of Galious, i wonder if i still have the gfx i had started to convert on one of my floppies in storage.
LieutLaww is offline  
Old 25 June 2018, 07:57   #50
turrican3
Moon 1969 = amiga 1985

turrican3's Avatar
 
Join Date: Apr 2007
Location: belgium
Age: 42
Posts: 3,290
by the way guys, is there a possibility to run "metal gear 2" (msx) with

amimsx ?
turrican3 is offline  
Old 25 June 2018, 08:32   #51
britelite
Registered User
 
Join Date: Feb 2010
Location: Espoo / Finland
Posts: 437
Quote:
Originally Posted by turrican3 View Post
by the way guys, is there a possibility to run "metal gear 2" (msx) with

amimsx ?
Why not download amimsx and try for yourself?
britelite is offline  
Old 26 June 2018, 01:55   #52
turrican3
Moon 1969 = amiga 1985

turrican3's Avatar
 
Join Date: Apr 2007
Location: belgium
Age: 42
Posts: 3,290
Quote:
Originally Posted by britelite View Post
Why not download amimsx and try for yourself?
I tried with different settings !!! But it still doesn't work.
But someone could have an idea to make it work.
It's not because i failed that it's impossible that others succeed.
That's the reason why forums like this exist, no ??? Help each others ?
Your question is strange ! why did you assume that i didn't try ??
turrican3 is offline  
Old 26 June 2018, 06:38   #53
britelite
Registered User
 
Join Date: Feb 2010
Location: Espoo / Finland
Posts: 437
Quote:
Originally Posted by turrican3 View Post
Your question is strange ! why did you assume that i didn't try ??
Because you gave no indication of having tried it out yourself. In general, it's a good idea to actually tell what you've done when having tried something unsuccessfully, as that will be useful when trying to help you. To quote one famous WinUAE author: Not enough information
britelite is offline  
Old 26 June 2018, 07:34   #54
DanyPPC
Registered User

 
Join Date: Dec 2016
Location: Italy
Posts: 78
Tested successfully on AmiMSX 3.1 (Matra version).

Insert the cartridge rom file of Metal Gear 2 and choose "SCC 2" from the Top Cartridge menù.
Power ON and play
DanyPPC is offline  
Old 29 June 2018, 04:30   #55
turrican3
Moon 1969 = amiga 1985

turrican3's Avatar
 
Join Date: Apr 2007
Location: belgium
Age: 42
Posts: 3,290
Ok no problem guys. I found it too !!!
scc2 mapper !
some screens from winuae:






turrican3 is offline  
Old 29 June 2018, 08:21   #56
Shatterhand
Warhasneverbeensomuchfun

Shatterhand's Avatar
 
Join Date: Jun 2001
Location: Rio de Janeiro / Brazil
Age: 35
Posts: 2,956
Metal Gear 2 is just so freaking good. Still an awesome game even when played today.

The original Metal Gear did age a bit, some of its puzzles are too cryptic (The one using the radio antenna is a big fuck you, I still wonder how the hell I figured that out back in the day - and the fact the player may screw up the game to the point of becoming impossible to finish it is also a no-no), the bosses are too easy and the whole stealth thing can be ignored for like 80% of the game when you know how to play it. Of course,it was FREAKING INCREDIBLE when it first came out and there was nothing like it before, so I'll cut it a lot of slack

But Metal Gear 2 is pure gold. Still is. Best Swan Song Konami could had given to the MSX.
Shatterhand is offline  
Old 18 August 2018, 14:45   #57
turrican3
Moon 1969 = amiga 1985

turrican3's Avatar
 
Join Date: Apr 2007
Location: belgium
Age: 42
Posts: 3,290
the msx still kicking !!!
msx2, msx2+ and R game :
[ Show youtube player ]
impressive for a msx game
there is a playable demo but can't find it !!!
I'll have a look.
turrican3 is offline  
Old 18 August 2018, 20:35   #58
DanyPPC
Registered User

 
Join Date: Dec 2016
Location: Italy
Posts: 78
Yes, but this game works only with a V9990 graphic board.
DanyPPC is offline  
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
pc games which was a shame to don't be ported on amiga ? turrican3 Amiga scene 31 25 August 2009 17:22
MSX can play sega master system games ! turrican3 Retrogaming General Discussion 4 31 July 2009 07:50
C64 games which got ported or cloned for the Amiga?. Whitesnake Retrogaming General Discussion 29 05 August 2006 10:06
MSX M-Box & Generation MSX Fred the Fop Retrogaming General Discussion 6 01 September 2005 20:22
MSX Games for sale CHiEF MarketPlace 4 24 February 2003 21:27

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +2. The time now is 22:59.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Page generated in 0.08777 seconds with 15 queries