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added a missing open bus case... nw.

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This commit is contained in:
Fabio Priuli 2013-03-06 15:32:01 +00:00
parent efe8b826bc
commit a455a62f25
1 changed files with 26 additions and 20 deletions
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22
src/mame/machine/snes.c
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@ -739,7 +739,7 @@ READ8_HANDLER( snes_r_bank3 )
if (state->m_cart[0].mode & 5) /* Mode 20 & 22 */ if (state->m_cart[0].mode & 5) /* Mode 20 & 22 */
{ {
if ((address < 0x8000) && (state->m_cart[0].mode == SNES_MODE_20)) if (address < 0x8000 && state->m_cart[0].mode == SNES_MODE_20)
value = snes_open_bus_r(space, 0); /* Reserved */ value = snes_open_bus_r(space, 0); /* Reserved */
else else
value = snes_ram[0x400000 + offset]; //ROM value = snes_ram[0x400000 + offset]; //ROM
@ -780,7 +780,7 @@ READ8_HANDLER( snes_r_bank5 )
UINT8 value; UINT8 value;
UINT16 address = offset & 0xffff; UINT16 address = offset & 0xffff;
if ((state->m_cart[0].mode & 5) && (address < 0x8000)) /* Mode 20 & 22 */ if (state->m_cart[0].mode & 5 && address < 0x8000) /* Mode 20 & 22 */
{ {
if (state->m_cart[0].m_nvram_size > 0x8000) if (state->m_cart[0].m_nvram_size > 0x8000)
{ {
@ -844,6 +844,11 @@ READ8_HANDLER( snes_r_bank7 )
int mask = state->m_cart[0].m_nvram_size - 1; /* Limit SRAM size to what's actually present */ int mask = state->m_cart[0].m_nvram_size - 1; /* Limit SRAM size to what's actually present */
value = state->m_cart[0].m_nvram[offset & mask]; value = state->m_cart[0].m_nvram[offset & mask];
} }
else
{
logerror("(PC=%06x) snes_r_bank7: Unmapped external chip read: %04x\n", space.device().safe_pc(), address);
value = snes_open_bus_r(space, 0); /* Reserved */
}
} }
} }
else else
@ -864,7 +869,7 @@ WRITE8_HANDLER( snes_w_bank1 )
else if (address < 0x6000) /* I/O */ else if (address < 0x6000) /* I/O */
state->snes_w_io(space, address, data); state->snes_w_io(space, address, data);
else if (address < 0x8000) else if (address < 0x8000)
logerror("snes_w_bank1: Attempt to write to reserved address: %x = %02x\n", offset, data); logerror("(PC=%06x) snes_w_bank1: Attempt to write to reserved address: %x = %02x\n", space.device().safe_pc(), offset, data);
else else
logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset); logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset);
} }
@ -889,7 +894,7 @@ WRITE8_HANDLER( snes_w_bank2 )
state->m_cart[0].m_nvram[(offset - 0x6000) & mask] = data; state->m_cart[0].m_nvram[(offset - 0x6000) & mask] = data;
} }
else else
logerror("snes_w_bank2: Attempt to write to reserved address: %X = %02x\n", offset + 0x300000, data); logerror("(PC=%06x) snes_w_bank2: Attempt to write to reserved address: %X = %02x\n", space.device().safe_pc(), offset + 0x300000, data);
} }
else else
logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset + 0x300000); logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset + 0x300000);
@ -906,7 +911,7 @@ WRITE8_HANDLER( snes_w_bank4 )
if (address >= 0x8000) if (address >= 0x8000)
logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset + 0x600000); logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset + 0x600000);
else else
logerror("snes_w_bank4: Attempt to write to reserved address: %X = %02x\n", offset + 0x600000, data); logerror("(PC=%06x) snes_w_bank4: Attempt to write to reserved address: %X = %02x\n", space.device().safe_pc(), offset + 0x600000, data);
} }
else if (state->m_cart[0].mode & 0x0a) else if (state->m_cart[0].mode & 0x0a)
logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset + 0x600000); logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset + 0x600000);
@ -918,7 +923,7 @@ WRITE8_HANDLER( snes_w_bank5 )
snes_state *state = space.machine().driver_data<snes_state>(); snes_state *state = space.machine().driver_data<snes_state>();
UINT16 address = offset & 0xffff; UINT16 address = offset & 0xffff;
if ((state->m_cart[0].mode & 5) && (address < 0x8000)) /* Mode 20 & 22 */ if (state->m_cart[0].mode & 5 && address < 0x8000) /* Mode 20 & 22 */
{ {
if (state->m_cart[0].m_nvram_size > 0x8000) if (state->m_cart[0].m_nvram_size > 0x8000)
{ {
@ -933,9 +938,9 @@ WRITE8_HANDLER( snes_w_bank5 )
state->m_cart[0].m_nvram[offset & mask] = data; state->m_cart[0].m_nvram[offset & mask] = data;
} }
else else
logerror("snes_w_bank5: Attempt to write to reserved address: %X = %02x\n", offset + 0x700000, data); logerror("(PC=%06x) snes_w_bank5: Attempt to write to reserved address: %X = %02x\n", space.device().safe_pc(), offset + 0x700000, data);
} }
else if (state->m_cart[0].mode & 0x0a) else
logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset + 0x700000); logerror("(PC=%06x) Attempt to write to ROM address: %X\n", space.device().safe_pc(), offset + 0x700000);
} }
@ -975,6 +980,7 @@ WRITE8_HANDLER( snes_w_bank7 )
return; return;
} }
} }
else
logerror("(PC=%06x) snes_w_bank7: Attempt to write to ROM address: %X = %02x\n", space.device().safe_pc(), offset + 0xc00000, data); logerror("(PC=%06x) snes_w_bank7: Attempt to write to ROM address: %X = %02x\n", space.device().safe_pc(), offset + 0xc00000, data);
} }
else if (state->m_cart[0].mode & 0x0a) else if (state->m_cart[0].mode & 0x0a)