Previous

15994 Revisions

Next

r13263 Tuesday 15th November, 2011 at 13:52:59 UTC by Fabio Priuli
snes: fixed another SRAM issue (Secret of Mana was affected, but probably other games too) [Fabio Priuli] out of whatsnew, many thanks to Shoegazer for reporting this bug and for the periodic reminders about it. it would have stayed unsolved for longer without you :)

[src/mame/machine]

snes.c

src/mame/machine/snes.c

r13262	r13263
1050	1050	}
1051	1051	else if ((state->m_cart[0].mode == SNES_MODE_21) && (state->m_cart[0].sram > 0))
1052	1052	{
1053		/* Donkey Kong Country checks this */
1054		int mask = state->m_cart[0].sram - 1; /* Limit SRAM size to what's actually present */
	1053	/* Donkey Kong Country checks this and detects a copier if 0x800 is not masked out due to sram size */
	1054	/* OTOH Secret of Mana does not work properly if sram is not mirrored on later banks */
	1055	int mask = (state->m_cart[0].sram - 1) | 0xffe000; /* Limit SRAM size to what's actually present */
1055	1056	value = snes_ram[0x300000 + (offset & mask)];
1056	1057	}
1057	1058	else
r13262	r13263
1411	1412	}
1412	1413	else if ((state->m_cart[0].mode == SNES_MODE_21) && (state->m_cart[0].sram > 0))
1413	1414	{
1414		/* Donkey Kong Country checks this */
1415		int mask = state->m_cart[0].sram - 1; /* Limit SRAM size to what's actually present */
	1415	/* Donkey Kong Country checks this and detects a copier if 0x800 is not masked out due to sram size */
	1416	/* OTOH Secret of Mana does not work properly if sram is not mirrored on later banks */
	1417	int mask = (state->m_cart[0].sram - 1) | 0xffe000; /* Limit SRAM size to what's actually present */
1416	1418	snes_ram[0x300000 + (offset & mask)] = data;
1417	1419	}
1418	1420	else

Previous

15994 Revisions

Next

---

© 1998-2018 The MESS Team