| 500 | //=========================================================================== |
| 501 | |
| 502 | void __stdcall Disk2InterfaceCard::ControlMotor(WORD, WORD address, BYTE, BYTE, ULONG uExecutedCycles) |
| 503 | { |
| 504 | BOOL newState = address & 1; |
| 505 | bool stateChanged = (newState != m_floppyMotorOn); |
| 506 | |
| 507 | // "2. [...] (DRIVES OFF forces the control flip-flops to clear.)" (UTAIIe page 9-12) |
| 508 | // - so m_magnetStates = 0. |
| 509 | // "5. Causes the ENABLE1' or the ENABLE2' signal to go low depending on which drive is selected by the drive1/drive2 switch." |
| 510 | // - so m_currDrive not affected. |
| 511 | // TODO: what about m_seqFunc.function? |
| 512 | if (newState == FALSE) |
| 513 | { |
| 514 | m_magnetStates = 0; // GH#926, GH#1315 |
| 515 | ControlStepperLogging(address, g_nCumulativeCycles); |
| 516 | } |
| 517 | |
| 518 | if (stateChanged) |
| 519 | { |
| 520 | m_floppyMotorOn = newState; |
| 521 | m_formatTrack.DriveNotWritingTrack(); |
| 522 | } |
| 523 | |
| 524 | // NB. Motor off doesn't reset the Command Decoder like reset. (UTAIIe figures 9.7 & 9.8 chip C2) |
| 525 | // - so it doesn't reset this state: m_seqFunc, m_magnetStates |
| 526 | #if LOG_DISK_MOTOR |
| 527 | LOG_DISK("%08X: motor %s\r\n", (UINT32)g_nCumulativeCycles, (m_floppyMotorOn) ? "on" : "off"); |
| 528 | #endif |
| 529 | CheckSpinning(stateChanged, uExecutedCycles); |
| 530 | } |
| 531 | |
| 532 | //=========================================================================== |
| 533 |
no test coverage detected