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Added a basic cycle skipper plus some notes.

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This commit is contained in:
Thomas Harte 2016-10-30 22:39:47 -04:00
parent 1333a42a78
commit 33512988fb
1 changed files with 15 additions and 0 deletions
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15
Machines/Oric/Oric.cpp
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@ -40,6 +40,21 @@ unsigned int Machine::perform_bus_operation(CPU6502::BusOperation operation, uin
{ {
if(address >= 0xc000) if(address >= 0xc000)
{ {
// // 024D = 0 => fast; otherwise slow
// // E6C9 = read byte: return byte in A
// if(address == 0xe6c9 && operation == CPU6502::BusOperation::ReadOpcode)
// {
// printf(".");
// }
if(address == 0xe720 && operation == CPU6502::BusOperation::ReadOpcode)
{
while(!_via.tape->get_input())
{
_via.run_for_cycles(1);
_via.tape->run_for_cycles(1);
}
}
if(isReadOperation(operation)) *value = _rom[address&16383]; if(isReadOperation(operation)) *value = _rom[address&16383];
} }
else else