| 325 | } |
| 326 | |
| 327 | void CMouseInterface::OnCommand() |
| 328 | { |
| 329 | #ifdef _DEBUG_SPURIOUS_IRQ |
| 330 | static UINT uSpuriousIrqCount = 0; |
| 331 | BYTE byOldState = m_byState; |
| 332 | #endif |
| 333 | |
| 334 | switch( m_byBuff[0] & 0xF0 ) |
| 335 | { |
| 336 | case MOUSE_SET: |
| 337 | m_nDataLen = 1; |
| 338 | m_byMode = m_byBuff[0] & 0x0F; |
| 339 | break; |
| 340 | case MOUSE_READ: // Read |
| 341 | m_nDataLen = 6; |
| 342 | m_byState &= STAT_MOVEMENT_SINCE_READMOUSE; |
| 343 | m_nX = m_iX; |
| 344 | m_nY = m_iY; |
| 345 | if ( m_bBtn0 ) m_byState |= STAT_PREV_BUTTON0; // Previous Button 0 |
| 346 | if ( m_bBtn1 ) m_byState |= STAT_PREV_BUTTON1; // Previous Button 1 |
| 347 | m_bBtn0 = m_bButtons[0]; |
| 348 | m_bBtn1 = m_bButtons[1]; |
| 349 | if ( m_bBtn0 ) m_byState |= STAT_CURR_BUTTON0; // Current Button 0 |
| 350 | if ( m_bBtn1 ) m_byState |= STAT_CURR_BUTTON1; // Current Button 1 |
| 351 | m_byBuff[1] = m_nX & 0xFF; |
| 352 | m_byBuff[2] = ( m_nX >> 8 ) & 0xFF; |
| 353 | m_byBuff[3] = m_nY & 0xFF; |
| 354 | m_byBuff[4] = ( m_nY >> 8 ) & 0xFF; |
| 355 | m_byBuff[5] = m_byState; // button 0/1 interrupt status |
| 356 | m_byState &= ~STAT_MOVEMENT_SINCE_READMOUSE; |
| 357 | #ifdef _DEBUG_SPURIOUS_IRQ |
| 358 | LogOutput("[MOUSE_READ] Old=%02X New=%02X\n", byOldState, m_byState); |
| 359 | #endif |
| 360 | break; |
| 361 | case MOUSE_SERV: |
| 362 | m_nDataLen = 2; |
| 363 | m_byBuff[1] = m_byState & ~STAT_MOVEMENT_SINCE_READMOUSE; // reason of interrupt |
| 364 | #ifdef _DEBUG_SPURIOUS_IRQ |
| 365 | if ((m_byMode & MODE_INT_ALL) && (m_byBuff[1] & MODE_INT_ALL) == 0) |
| 366 | { |
| 367 | uSpuriousIrqCount++; |
| 368 | LogOutput("[MOUSE_SERV] 0x%04X Buff[1]=0x%02X, ***\n", uSpuriousIrqCount, m_byBuff[1]); |
| 369 | } |
| 370 | else |
| 371 | { |
| 372 | LogOutput("[MOUSE_SERV] ------ Buff[1]=0x%02X\n", m_byBuff[1]); |
| 373 | } |
| 374 | #endif |
| 375 | CpuIrqDeassert(IS_MOUSE); |
| 376 | break; |
| 377 | case MOUSE_CLEAR: |
| 378 | Clear(); // [TC] NB. Don't reset clamp values (eg. Fantavision) |
| 379 | m_nDataLen = 1; |
| 380 | break; |
| 381 | case MOUSE_POS: |
| 382 | m_nDataLen = 5; |
| 383 | break; |
| 384 | case MOUSE_INIT: |
nothing calls this directly
no test coverage detected