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Modified for a single hotspot, as the bank switching is encoded in the value written to the bank address anyway. 

git-svn-id: svn://svn.code.sf.net/p/stella/code/trunk@2897 8b62c5a3-ac7e-4cc8-8f21-d9a121418aba
This commit is contained in:
adavie 2014-06-03 12:05:00 +00:00
parent c774f19fd0
commit 009b36bd5c
1 changed files with 4 additions and 17 deletions
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21
src/emucore/CartDASH.cxx
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@ -159,24 +159,11 @@ bool CartridgeDASH::poke(uInt16 address, uInt8 value)
{
address &= 0x0FFF; // restrict to 4K address range
// Check for write to 3E (RAM switching) or 3F (ROM switching) and switch
// banks if necessary. There are NO mirrored hotspots.
// Check for write to the bank switch address. RAM/ROM and bank # are encoded in 'value'
// There are NO mirrored hotspots.
switch (address)
{
case 0x3F: // a ROM switch
assert(value < ROM_BANK_COUNT);
bank(value);
break;
case 0x3E: // a RAM switch
assert(value < RAM_BANK_COUNT);
bank(ROMRAM|value);
break;
}
// @THOMAS -- well, really we don't need to use 3E and 3F -- we can just use (say) 3E
// and the value determines if we're doing RAM(64+bank) or ROM(bank) writes.
// No need to have two addresses at all, right?
if ( address == BANK_SWITCH_HOTSPOT)
bank(value);
// Pass the poke through to the TIA. In a real Atari, both the cart and the
// TIA see the address lines, and both react accordingly. In Stella, each