The Big MegaFlashROM SCC+ SD Topic

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Por Guillian

Prophet (3529)

Imagen del Guillian

16-01-2016, 11:56

I have checked it again.
The problem in Profanation CAS to ROM conversion is in the RAM selection rutine when the RAM is in a subslot. It tries to change the subslot running code on page 3. So when it changes the main slot in page 3 in order to select the right subslot, the code is not visible anymore and it hangs.
My configuration in blueMSX was "MSXturboR" which has a PAC (SRAM) in slot 2-2. That caused the slot 2 to be expanded, so when inserting a RAM expansion on slot 2 the game needs to change the subslot and hangs.
Using "MSXturboR FS-A1ST" works fine with the RAM on slot 2 because it is not expanded (as it must be)
On openMSX the slot is not expanded, as expected, so the game works fine.
But a weird thing is that I inserted the game on slot 1, but the debugger shows that it is on slot 2 and the RAM in slot 1.

Anyway, openMSX works fine, BlueMSX works fine selecting the right machine configuration and the game can't work with RAM in a subslot. Running Naked in a Field of Flowers

Por Manuel

Ascended (19678)

Imagen del Manuel

16-01-2016, 12:56

Ah, the RAM was of course also in a subslot in the case of mfeingol, using the PlaySoniq. OK, that explains, no bug then, great Smile

Regarding the debugger...
How did you put the stuff in the slots in openMSX? And what does 'slotmap' say on the console?

I tried this command line and that seems to work fine: openmsx -machine Panasonic_FS-A1ST -carta abusimbel.rom -ext ram512k
Also, how did you check this in the debugger exactly? (To know what exactly you saw...)

Por Guillian

Prophet (3529)

Imagen del Guillian

16-01-2016, 14:34

I launched Catapult.
Selected Cart A: Profanation
Extension: RAM512k
Pressed START

slotmap shows RAM in slot 1(slota) and Profanation in slot 2 (slotb)
In the debugger, in memory layout window, profanation is in slot 2 an memory in slot 1

Probably is not right to assume that CartA is slot 1(slota) and CartB is slot 2(slotb) (^^!)

Por Manuel

Ascended (19678)

Imagen del Manuel

16-01-2016, 14:46

It's a limitation of Catapult, sorry. It stupidly first inserts all extensions and then the cartridges. For such things, you could use the OSD menu instead (hit the MENU key to open it).

Por alshamaa

Expert (117)

Imagen del alshamaa

13-08-2016, 12:11

HI all.
I'm trying to use the MegaFlashRom with (Konami game master 1 ) .
How can I use (Konami game master 1 ) with any other .Rom while both in the same SD card? What is the command for that ?

Por Parn

Paladin (854)

Imagen del Parn

18-01-2016, 20:06

Please forgive me if this was asked before, but it can become very complicated searching through 66 pages of past comments. I'd like to know if the MFRSCC+SD FPGA can be reprogrammed by the user, and if so, if there is any space left on it to add anything (like an SN76489 core).

Por Grauw

Ascended (10820)

Imagen del Grauw

18-01-2016, 20:09

I imagine you can if you open it up and connect a byte blaster, but the source is not public and it can not be reprogrammed from the MSX itself like the 1chipMSX can.

Por Parn

Paladin (854)

Imagen del Parn

18-01-2016, 20:14

Thank you for the quick response! I suspected as much, that's too bad. But one can hope for an enhanced next version Wink

Por Guillian

Prophet (3529)

Imagen del Guillian

19-01-2016, 09:16

@alshamaa: Probably the easiest way of using Game Master and Game Master 2 is to do it from SofaRun.
@Parn: There is no enough space in the FPGA for a SN76489

Por alshamaa

Expert (117)

Imagen del alshamaa

19-01-2016, 18:41

@Guillian:Thanks for your response.

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