diff --git a/src/mame/machine/snes.c b/src/mame/machine/snes.c index 41d19c17e87..a01793ae9c1 100644 --- a/src/mame/machine/snes.c +++ b/src/mame/machine/snes.c @@ -999,8 +999,8 @@ READ8_HANDLER( snes_r_bank2 ) } else if ((state->cart[0].mode == SNES_MODE_21) && (state->cart[0].sram > 0)) { - int mask = (state->cart[0].sram - 1) | 0xff0000; /* Limit SRAM size to what's actually present */ - value = snes_ram[0x300000 + (offset & mask)]; +// int mask = state->cart[0].sram - 1; /* Limit SRAM size to what's actually present */ + value = snes_ram[0x300000 + offset]; } else { @@ -1123,7 +1123,7 @@ READ8_HANDLER( snes_r_bank5 ) { if (state->cart[0].sram > 0) { - int mask = (state->cart[0].sram - 1) | 0xff0000; /* Limit SRAM size to what's actually present */ + int mask = state->cart[0].sram - 1; /* Limit SRAM size to what's actually present */ value = snes_ram[0x700000 + (offset & mask)]; } else @@ -1162,8 +1162,8 @@ READ8_HANDLER( snes_r_bank6 ) value = memory_read_byte(space, offset); else if ((offset >= 0x300000) && (state->cart[0].sram > 0)) { - int mask = (state->cart[0].sram - 1) | 0xff0000; /* Limit SRAM size to what's actually present */ - value = snes_ram[0x800000 + (offset & mask)]; +// int mask = state->cart[0].sram - 1; /* Limit SRAM size to what's actually present */ + value = snes_ram[0x800000 + offset]; } else /* Area 0x6000-0x8000 with offset < 0x300000 is reserved */ { @@ -1324,8 +1324,8 @@ WRITE8_HANDLER( snes_w_bank2 ) } else if ((state->cart[0].mode == SNES_MODE_21) && (state->cart[0].sram > 0)) { - int mask = (state->cart[0].sram - 1) | 0xff0000; /* Limit SRAM size to what's actually present */ - snes_ram[0x300000 + (offset & mask)] = data; +// int mask = state->cart[0].sram - 1; /* Limit SRAM size to what's actually present */ + snes_ram[0x300000 + offset] = data; } else logerror("snes_w_bank2: Attempt to write to reserved address: %X = %02x\n", offset + 0x300000, data); @@ -1389,8 +1389,8 @@ WRITE8_HANDLER( snes_w_bank5 ) { if (state->cart[0].sram > 0) { - int mask = (state->cart[0].sram - 1) | 0xff0000; /* Limit SRAM size to what's actually present */ - snes_ram[0x700000 + (offset & mask)] = data; + int mask = state->cart[0].sram - 1; /* Limit SRAM size to what's actually present */ + snes_ram[0x700000 + + (offset & mask)] = data; } else logerror("snes_w_bank5: Attempt to write to reserved address: %X = %02x\n", offset + 0x700000, data); @@ -1423,8 +1423,8 @@ WRITE8_HANDLER( snes_w_bank6 ) memory_write_byte(space, offset, data); else if ((offset >= 0x300000) && (state->cart[0].sram > 0)) { - int mask = (state->cart[0].sram - 1) | 0xff0000; /* Limit SRAM size to what's actually present */ - snes_ram[0x800000 + (offset & mask)] = data; +// int mask = state->cart[0].sram - 1; /* Limit SRAM size to what's actually present */ + snes_ram[0x800000 + offset] = data; } else /* Area in 0x6000-0x8000 && offset < 0x300000 is Reserved! */ logerror("snes_w_bank6: Attempt to write to reserved address: %X = %02x\n", offset + 0x800000, data);