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[SMS/GG] fixed uninitialized memory writes bug (fixes games accidentally writing to ROM area)

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ekeeke31 2012-04-12 22:05:07 +00:00
parent fcfd294d84
commit 6743bac508
1 changed files with 3 additions and 3 deletions
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6
source/cart_hw/sms_cart.c
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@ -861,14 +861,14 @@ static void mapper_reset(void)
} }
else else
{ {
/* $0000-$3FFF mapped to ROM (first 16k) by default */ /* $0000-$BFFF mapped to ROM by default */
for (i = 0x00; i < 0x10; i++) for (i = 0x00; i < 0x30; i++)
{ {
z80_readmap[i] = &slot.rom[i << 10]; z80_readmap[i] = &slot.rom[i << 10];
z80_writemap[i] = cart.rom + 0x510000; /* unused area */ z80_writemap[i] = cart.rom + 0x510000; /* unused area */
} }
/* ROM paging */ /* reset default ROM paging */
if (slot.mapper & MAPPER_KOREA_8K) if (slot.mapper & MAPPER_KOREA_8K)
{ {
mapper_8k_w(0,slot.fcr[0]); mapper_8k_w(0,slot.fcr[0]);