Did you know..? (MSX trivia!)

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By hap

Paragon (2021)

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11-04-2017, 01:35

Schematics say it's for generating the PAL encoder(TA7798P) COS/SIN clock inputs. Analog video output, not a task for openMSX.

By RetroTechie

Paragon (1563)

RetroTechie's picture

11-04-2017, 02:44

Yep.. pull either -or both- of these 2 IC's out of a HB-F9P, and I'd expect composite video output to fail (and nothing else).

By hamlet

Scribe (2538)

hamlet's picture

27-04-2017, 10:53

As surely everybody knows, but I just stumpled recently above the option to set a mouse in joystick mode by pressing reset and holding the right mouse button during start up.
Booting from BASIC into DOS without restart needs a POKE&HF346,1 command, of course followed by a _SYSTEM command.
Forcing another drive as main device:
POKE&HF247,1 Drive B: will be the main drive,
POKE&HF247,2 Drive C: ...

By hamlet

Scribe (2538)

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28-04-2017, 12:19

I heard a rumour but could´nt confirm it, that you can insert a cartridge in a powered MSX without damaging the computer when typing a LOAD"CAS: command. Is this true?

By Louthrax

Prophet (2083)

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28-04-2017, 13:20

hamlet wrote:

I heard a rumour but could´nt confirm it, that you can insert a cartridge in a powered MSX without damaging the computer when typing a LOAD"CAS: command. Is this true?

I think that interruptions are disabled when you do a LOAD"CAS:", so the computer is just less likely to reset... But from a hardware point of view it should not change anything (and should not be safer at all).

By Hrothgar

Champion (479)

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28-04-2017, 16:19

I can only confirm that I used to do this back in the days. Indeed the computer doesn't hang or reset this way and you can recover to normal Basic mode by ctrl+break.
It never damaged anything for me (as far as I know) but I know the warnings so I just might have been lucky.

By konamiman

Paragon (1044)

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28-04-2017, 17:05

Quote:

... MISSILE is actually misspelled as MISSILIE in Gradius/Nemesis 2?

Oh my frigging Gofer...

You can´t imagine how many times I have played this game in the last 30 years. And I never noticed that. I want to die.

Bue anyway, here's mine: do you know that although the minimum amount of RAM required for a MSX1 according to the spec is 8KB, a computer having only 4KB would actually boot? NestorMSX proves it:

Yes, not much free memory to do anything but... now you know something interesting to tell at MSX parties!

By larsthe18th

Master (159)

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02-05-2017, 21:10

ren wrote:

... MISSILE is actually misspelled as MISSILIE in Gradius/Nemesis 2? (Yeah, start questioning your 'world' now.. Wink)

Flipping flipflop... I never noticed this either, but i have a solution.

Find and Replace the following Hex values in The ROM file (2x)
E8 EB E8 EB EB 28 1F FF 1F FF FF 1F
with these Hex values
E0 EF E0 EF EF 20 7F FF 7F FF FF 7F

Now MISSILE is spelled right.
This woks for 'Nemesis 2' 'Nemesis2 Beta' and 'Nemesis2 Demo' Version.

By Manuel

Ascended (15762)

Manuel's picture

02-05-2017, 23:38

konamiman: hah, indeed, I also just tried it on openMSX Smile 4kB of RAM at 0xF000 in e.g. a Toshiba HX-10 boots fine like you showed Smile

By Louthrax

Prophet (2083)

Louthrax's picture

02-05-2017, 23:59

Manuel wrote:

konamiman: hah, indeed, I also just tried it on openMSX Smile 4kB of RAM at 0xF000 in e.g. a Toshiba HX-10 boots fine like you showed Smile

Amazing! We should launch a BASIC contest for the (non-existing) 4KB MSX machines (no limitation on the number of lines) Smile

Wondering if a ROM that works on this system exists? That's not completely unthinkable.

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