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Another fix to deal with real-time fighting: allow 8 and 18 pulses to be recognised as 1s and 0s. That's because the hand-off from ROM routines to parsing may occur very shortly before the first pulse of a valid sequence, making it look like there's a ghost. A cleaner solution needs to be found, probably revolving around allowing parsers to be attached to tapes and therefore to run constantly.

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Thomas Harte 2017-07-06 22:33:03 -04:00
parent 84d0e9b4cd
commit 2f42874fd3
1 changed files with 3 additions and 3 deletions
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Storage/Tape/Parsers/ZX8081.cpp
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@ -79,10 +79,10 @@ void Parser::inspect_waves(const std::vector<WaveType> &waves) {
// the gap that follows the bit due to the simplified "high is high, everything else is low" // the gap that follows the bit due to the simplified "high is high, everything else is low"
// logic applied to pulse detection. So those two things will merge. Meaning we're looking for // logic applied to pulse detection. So those two things will merge. Meaning we're looking for
// 17 and/or 7 pulses. // 17 and/or 7 pulses.
int gaps_to_swallow = (int)wave_offset + ((waves[number_of_pulses + wave_offset] == WaveType::Gap) ? 1 : 0); size_t gaps_to_swallow = wave_offset + ((waves[number_of_pulses + wave_offset] == WaveType::Gap) ? 1 : 0);
switch(number_of_pulses) { switch(number_of_pulses) {
case 17: push_symbol(SymbolType::One, 17 + gaps_to_swallow); break; case 18: case 17: push_symbol(SymbolType::One, (int)(number_of_pulses + gaps_to_swallow)); break;
case 7: push_symbol(SymbolType::Zero, 7 + gaps_to_swallow); break; case 8: case 7: push_symbol(SymbolType::Zero, (int)(number_of_pulses + gaps_to_swallow)); break;
default: push_symbol(SymbolType::Unrecognised, 1); break; default: push_symbol(SymbolType::Unrecognised, 1); break;
} }
} }