MSX games at 21Mhz!!!

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By Paulbrk

Hero (611)

Paulbrk's picture

24-07-2011, 12:00

Did you ever tried to edit the machine configuration of your BlueMSX MSX2+ at 21Mhz?

Take a look at my video:

http://vimeo.com/26823056

Most of the games work very well:

Salamander goes fast but very good playable.
Xak runs very well
Elite is very smooth
Altered Beast runs very fast, is unplayable
Acrojet runs very smooth
Ys 3 wow, this is a very spectacular game now!!!
Chuck Yeager runs very smoothly with solid monochrome poligons
Fray runs very smoothly
Gunship now has a very fast poligons
Nuts now is more playable and hard
Return of Jelda runs more smoothly
Space manbow runs very smooth with no slowdowns
Vstol Fighter runs very smooth and fast
Flight simulator runs very smooth
Illussion City, is a pleasure to play at 21 Mhz on an MSX2+

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By iamweasel2

Paladin (709)

iamweasel2's picture

24-07-2011, 16:23

Interesting question. When you change the BlueMSX configuration 21 mhz, does it affect only the z80 internal operation (with access to vdp, psg, memory etc in the original speed those components can handle in a real MSX) or does it speed up everything as a whole (which means being unrealistic to think about a msx with that speed using the original components (VDP, PSG etc) and a fast z80)?

If the original msx behaviour is kept (only the z80 internal speed is changed), one can make studies using an emulator about what different z80 speeds does to general msx performance using classic and new software and what would be the best "z80 speed" to have when using these softwares.

By sd_snatcher

Prophet (3642)

sd_snatcher's picture

24-07-2011, 16:52

@Paulbrk

I make/test all my turbofixes with openMSX running the Z80@40MHz and the turbo-blitter option. :)

I dream to have one real MSX running at this marvelous speed someday.
:RNFF:

BTW, you can fix the speed of Salamander, Space Manbow and many others with the patches available at my site.

By Paulbrk

Hero (611)

Paulbrk's picture

24-07-2011, 17:00

Since you release the Turbofix, I always use my patched roms of Salamander, Nemesis II, Space Manbow and Metal Gear saga.

The Salamander and Space Manbow you have seen on my video are fixed with your patches, take a look at the Salamander colors. Has the palette you put on your turbofix.

By sd_snatcher

Prophet (3642)

sd_snatcher's picture

24-07-2011, 17:03

@Paulbrk

On your video, what's the name of the game that looks like DoubleDragon? If it's Nuts, I couldn't find it on generation-MSX with that name.

By Paulbrk

Hero (611)

Paulbrk's picture

24-07-2011, 17:05

@SD_Snatcher

The game is Nuts, write me a mail to toni.galvez (a) gmail.com and we talk.

By JohnHassink

Ambassador (5655)

JohnHassink's picture

24-07-2011, 17:55

Funny. Smile

When I still used the NLMSX emulator, I would play games like Ys III, DragonSlayer 6 and Valis II at 400% emulation speed, since it would not influence the sound. Made those games a lot smoother and faster. Wink

By hap

Paragon (2042)

hap's picture

24-07-2011, 18:01

Frits Hilderink 4 president! \o/

Paulbrk's triple exclamation mark in the topictitle makes it sound like he invented the wheel for finding out about an overclock feature in emulators. But really, most emulator users have toyed with it before, it's not *that* impressive. Smile

By iamweasel2

Paladin (709)

iamweasel2's picture

24-07-2011, 18:27

hap: how eactly that overclock works? what exactly is overclocked?

By hap

Paragon (2042)

hap's picture

24-07-2011, 18:35

If you don't know the term 'overclock', here: http://en.wikipedia.org/wiki/Overclocking
On MSX emulators it usually only overclocks the Z80, increasing speed (getting rid of slowdowns) on some games or programs that occasionally take more than one frame to render/calculate the game state.

By JohnHassink

Ambassador (5655)

JohnHassink's picture

24-07-2011, 18:55

It's a beautiful term, don't you think? "Overclocking".. Smile

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