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Lengths I'd taken seem to have been for dipoles, not single poles. So I just doubled the clock rate. Also I was producing each dipole as high then low, when they should probably be low then high. The Vic now at least recognises that something is happening on the tape.

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This commit is contained in:
Thomas Harte 2016-08-16 19:46:53 -04:00
parent 3a23d5d8cf
commit 12f8aff65b
2 changed files with 5 additions and 5 deletions
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2
Machines/Commodore/Vic-20/Vic20.cpp
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@ -102,7 +102,7 @@ Machine::~Machine()
unsigned int Machine::perform_bus_operation(CPU6502::BusOperation operation, uint16_t address, uint8_t *value)
{
// static int logCount = 0;
// if(operation == CPU6502::BusOperation::ReadOpcode && address == 0xee17) logCount = 500;
// if(operation == CPU6502::BusOperation::ReadOpcode && address == 0xf957) logCount = 500;
// if(operation == CPU6502::BusOperation::ReadOpcode && logCount) {
// logCount--;
// printf("%04x\n", address);

8
Storage/Tape/Formats/TapePRG.cpp
View File

@ -57,8 +57,8 @@ Tape::Pulse TapePRG::get_next_pulse()
case WordMarker: pulse.length.length = (_bitPhase&2) ? one_length : marker_length; break;
case EndOfBlock: pulse.length.length = (_bitPhase&2) ? zero_length : marker_length; break;
}
pulse.length.clock_rate = 1000000;
pulse.type = (_bitPhase&1) ? Pulse::Low : Pulse::High;
pulse.length.clock_rate = 2000000;
pulse.type = (_bitPhase&1) ? Pulse::High : Pulse::Low;
return pulse;
}
@ -125,8 +125,8 @@ void TapePRG::get_next_output_token()
case 4: _output_byte = ((_load_address + _length) >> 8) & 0xff; break;
case 5: _output_byte = 0x50; break; // P
case 6: _output_byte = 0x72; break; // R
case 7: _output_byte = 0x67; break; // G
case 6: _output_byte = 0x52; break; // R
case 7: _output_byte = 0x47; break; // G
default:
_output_byte = 0x20;
break;