| 32 | } |
| 33 | |
| 34 | inline void SIDsound::updateShiftReg(SIDVoice &v) |
| 35 | { |
| 36 | unsigned int shiftReg = v.shiftReg; |
| 37 | unsigned int bit22 = bit(shiftReg,22); |
| 38 | unsigned int bit17 = bit(shiftReg,17); |
| 39 | |
| 40 | // Shift 1 bit left |
| 41 | shiftReg = ((shiftReg) << 1);// & 0x7fffff; |
| 42 | |
| 43 | // Feed bit 0 |
| 44 | v.shiftReg = shiftReg | (bit22 ^ bit17); |
| 45 | } |
| 46 | |
| 47 | inline int SIDsound::waveNoise(SIDVoice &v) |
| 48 | { |