Wiki editing discussion | MSX Resource Center (Page 99/108)

Ascended (17692)

09-02-2021, 21:23

As for the ASCII8/16 mappers: I propose we remove the mirroring from the article until proven otherwise. It's now suggesting something for which we don't even have an example for which we know that it is true.

By sdsnatcher73

Paragon (1662)

11-02-2021, 18:16

sdsnatcher73 wrote:

mars2000you wrote:

Manuel wrote:

https://www.msx.org/wiki/MSX-AUDIO says that Panasonic FS-CA1 must be in slot 1 to get FM music in Labyrinth, but I also get music when the game is in slot 1 and the MSX-AUDIO cart is in slot 2...? Tested in openMSX on a FS-A1GT.

And what happens on a real machine? I'm curious.....

What for the 3 other ROM games???? Also to be checked on real machine.... Maybe Labyrinth is just an exception (or not???)

The exception is actually Xevious. It requires the MSX-AUDIO to be in a lower slot because it does not hook into H.STKE. The other games do, therefore the BIOS continues with all initialisation (including MSX-AUDIO BIOS and BDOS). I will test later on real HW but I expect the same result.

Same behavior confirmed on real hardware, using the following hardware:
1. Sony HB-F700P
2. MegaFlashROM SCC+ (non SD version, games flashed)
3. Philips Music Module upgraded to MSX-Audio spec with BIOS 1.3b

By mars2000you

Enlighted (5823)

11-02-2021, 18:59

sdsnatcher73 wrote:

The exception is actually Xevious. It requires the MSX-AUDIO to be in a lower slot because it does not hook into H.STKE. The other games do, therefore the BIOS continues with all initialisation (including MSX-AUDIO BIOS and BDOS). I will test later on real HW but I expect the same result.

Same behavior confirmed on real hardware, using the following hardware:
1. Sony HB-F700P
2. MegaFlashROM SCC+ (non SD version, games flashed)
3. Philips Music Module upgraded to MSX-Audio spec with BIOS 1.3b

Thanks

By Manuel

Ascended (17692)

17-02-2021, 22:19

Manuel wrote:

As for the ASCII8/16 mappers: I propose we remove the mirroring from the article until proven otherwise. It's now suggesting something for which we don't even have an example for which we know that it is true.

Agreed? There seems to be no example of the described mirroring.

By gdx

Enlighted (4192)

18-02-2021, 00:51

No. I have not searched for other examples but the one I gave is already enough not to remove the description. Especially since there is a remark that specifies that the mirrors are not always present.

By Manuel

Ascended (17692)

20-02-2021, 22:45

gdx wrote:

No. I have not searched for other examples but the one I gave is already enough not to remove the description. Especially since there is a remark that specifies that the mirrors are not always present.

gdx, which example did you give?? What did I miss?

The remark sounds like the mirrors are present in most cases. But so far I haven't seen any example where it is present.

By Manuel

Ascended (17692)

20-02-2021, 22:48

In the article on the Mitsubishi ML-G10, it is stated that the S1985 is used. But no evidence whatsoever is given. What is the source of that information?

By Pentarou

Champion (329)

21-02-2021, 00:17

gdx: Are you sure Erik van Son MMC/SD Drive v2 has SCC sound?
Maybe the photos show another cartridge? This one has a CPLD (not an FPGA) and the SOUNDIN pin looks unconnected.

By mars2000you

Enlighted (5823)

21-02-2021, 02:05

Manuel wrote:

In the article on the Mitsubishi ML-G10, it is stated that the S1985 is used. But no evidence whatsoever is given. What is the source of that information?

Bad guessing. Probably a S3527 just like the Spanish ML-G1.

By gdx

Enlighted (4192)

21-02-2021, 09:04

Manuel wrote:

which example did you give?? What did I miss?

I told you that some time ago. I have a Garakuta based ESE-RAM which has it's mirrors.
Long ago I also noticed this mirrors on other Megaroms but I no longer remember the titles.
I haven't no more these cartridges for years.

About the Mitsubishi ML-G10 the picture below is not clear but it is sufficient to confirm that it is the S3527 not the S1985.

https://twitter.com/Fabio_acrs/status/1356799195517222912

Pentarou wrote:

Are you sure Erik van Son MMC/SD Drive v2 has SCC sound?

No, I quickly created the wiki yesterday. The MMC/SD Drive v2 original has SCC sound so I supposed that it is the case also for the version from Erik van Son because the FPGA can easily do it. Using an FPGA just to make a classic SD interface seems disproportionate to me.

Edit: I verified on the PCB. The pin 49 is not connected so no SCC sound. oO