SofaROM bug report thread

Ok, it looks like it's the Hole in one RAM detection routine that pokes in the ROM at 0xBFFE (to search for RAM slots).

My hypothesis is that this poke does not have any effect on some devices but that it does (switch a page) on the Carnivore 2. This fix could be to reduce the range of the switch are to the same as other mappers ?

EDIT: Maybe this could be done without changing the firmware but just by reducing the "mask" before launching the ROM:

Carnivore 2 spec:

+06 R1Mask - mask for the address of the bank page register (this register is usually duplicated to several addresses
             for example for a Konami 5 (SCC) cartridge these addresses are for the first bank 5000h-57FFh, here it is given
             the mask of the high-order byte only is 11111000b or F8h
             initial configuration F8h

ASCII 16kb "specs":

ASCII 16Kb

This type is used in a few cartridges: Xevious, Fantasy Zone 2, Return of Ishitar, Andorogynus and probably some more.

Since the size of the mapper is 16Kb, the memory banks are:

	Bank 1: 4000h - 7FFFh
	Bank 2: 8000h - BFFFh

And the address to change banks:

	Bank 1: 6000h - 67FFh (6000h used)
	Bank 2: 7000h - 77FFh (7000h and 77FFh used)

So you were right manuel ! It works in SofaROM if I add this before launching Hole in One Special:

MEM_pokeSlot(_ucROMSlot, 0x6000, 0);
MEM_pokeSlot(_ucROMSlot, 0x7000, 0);

So it looks like the Carnivore 2 default page numbers might be 0 and 1, and that some games are expected the values to be 0,0. I'll add init sequence for ASCII 16 in SofaROM to set all pages to 0 in ASCII 8 and ASCII 16.

Just hoping this won't break other games !

The same error is in the ASCII8 mapper.

Which mouse are you using ? Is this a standard MSX mouse or a PC mouse with an adapter ? Other question: was it working with SofaRun 7.0 ?

I used PS2 to MSX mouse adapter. Both of them were going crazy. It was SR version 7. Oh by the way, I checked it out on version 8 and... the mouse doesn't work at all. Not even in games. The buttons work but the movement is completely frozen so I downgraded

mice