//RunMesa.d - Common Definitions for RunMesa files - R. Levin //last modified by Johnsson: May 16, 1980 8:46 AM //------------------------------------------------------------------ structure HardwareInfo: //------------------------------------------------------------------ [ reserved bit 5 AltoType bit 3 XMmicrocode bit 1 useXM bit 1 MDSbank bit 4 ControlStore bit 2 banks word mesaMicrocodeVersion word ] manifest lHardwareInfo = (size HardwareInfo)/16 manifest [ // "Alto" types UnknownMachine = 0 AltoI = 1 AltoII = 2 AltoIIXM = 3 Dolphin = 4 Dorado = 5 ] manifest [ // control store types RAM0only = 0 RAMandROM = 1 RAM3K = 2 ] manifest [ bank0only = #100000 banks0123 = #170000 allBanks = #177777 ] manifest HardwareConfiguration = #3 // where it's left in memory // Some conventions: // AltoType is in [1..5] // 0 => unknown // 1 => Alto I // 2 => Alto II // 3 => Alto II XM // 4 => Dolphin // 5 => Dorado // ControlStore is in [0..2] // 0 => RAM0 only // 1 => RAM0 and ROM1 // 2 => RAM0, RAM1, and RAM2 //------------------------------------------------------------------ // UserParam types //------------------------------------------------------------------ manifest mesaMemoryMask = privateType + 10 //------------------------------------------------------------------ structure BltItem: //------------------------------------------------------------------ [ firstSourceM1 word lastDest word minusCount word ] manifest lBltItem = size BltItem/16 //------------------------------------------------------------------ structure BootMap: //------------------------------------------------------------------ [ fp @FP firstpage word address^0,(255-lFP-1) word ] manifest lBootMap = 256 //------------------------------------------------------------------ structure BootList: //------------------------------------------------------------------ [ pageMap word firstDa word initialState word blt^0,4 @BltItem // could be any number of these terminator word // = 0 ] manifest lBootList = size BootList/16 manifest [ // indices for BootList.blt blMesaNova1 = 0 blMesaNova2 = 1 blInterruptVector = 2 blInitialState = 3 blPageMap = 4 ] //------------------------------------------------------------------ structure VersionStamp: //------------------------------------------------------------------ [ net bit 8 host bit 8 time: [ low word high word ] ] manifest lVersionStamp = size VersionStamp/16 //------------------------------------------------------------------ structure StateVector: //------------------------------------------------------------------ [ stk^0,7 word instbyte byte fill bit 4 stkptr bit 4 X word Y word ] manifest lStateVector = size StateVector/16 //------------------------------------------------------------------ structure ImagePrefix: //------------------------------------------------------------------ [ versionident word version @VersionStamp creator @VersionStamp options word diskAddresses word leaderDA word state @StateVector loadStateBase word initialLoadStateBase word type bit 2 fill bit 1 loadStatePages bit 13 ] manifest lImagePrefix = size ImagePrefix/16 manifest [ // image types bootmesa = 0 makeimage = 1 checkfile = 2 other = 3 ] //------------------------------------------------------------------ structure MapItem: //------------------------------------------------------------------ [ page byte count bit 7 tag bit 1 da word base word ] manifest [ lnormalMapItem = 1 lchangeMapItem = 3 ] //------------------------------------------------------------------ // SD constants - These must match SDDefs.mesa //------------------------------------------------------------------ manifest [ SystemDispatch = #1100 sGoingAway = #111 sProcessTrap = #17 ] //------------------------------------------------------------------ // Magic addresses //------------------------------------------------------------------ manifest [ PointerToBootMap = #24 TXV = #25 //Transfer Vector for Nova Code PuntData = #456 FirstProcess = #1075 LastProcess = #1076 FirstStateVector = #1077 xNovaCode = #174400 MesaStart = #20 //Starting address in RAM ] //------------------------------------------------------------------ // Interrupt constants //------------------------------------------------------------------ manifest [ TimeoutInterruptLevel = 4 TimeoutInterruptBit = 1 lshift TimeoutInterruptLevel ParityInterruptLevel = 0 ParityInterruptBit = 1 lshift ParityInterruptLevel ] //------------------------------------------------------------------ // Interface Items //------------------------------------------------------------------ external // OS [ // procedures Closes CreateDiskStream DisableInterrupts EnableInterrupts Endofs GetCompleteFa GetCurrentFa Gets JumpToFa Junta InLd MoveBlock MyFrame OpenFile OsFinish OutLd PositionPage PositionPtr Puts ReadBlock RealDiskDA Resets SetFilePos TruncateDiskStream Wns Ws Zero // variables dsp fpComCm keys lvUserFinishProc sysDisk ] external // Run.bcpl [ AbortMsg GiveMicrocodeVersion KeyboardWait LoadInternalMicrocode memoryBanks // bit mask (100000b rshift bank) microcodeLoaded // bit mask (1 lshift bank) Run ] external // Configuration.bcpl [ DetermineConfiguration ROMCompatibility ] external // MesaImage.br [ MesaImage ] external // XMesaImage.br [ XMesaImage ] external // XMesaOverflow.br [ XMesaOverflow ] external // Mesa-Nova (1 & 2) .asm [ EMLOOP MesaNova1 MesaNovaSize1 AC1Ptr AbsoluteTXV CleanUpQueueUser RequeueSubUser WakeHeadImplementer STOPUser AdvanceTimerPtr processTrapPtr firstProcessPtr lastProcessPtr firstStateVectorPtr PScode MesaNova2 MesaNovaSize2 STOPImplementer CleanUpQueueImplementer RequeueSubImplementer WakeHeadUser OSFPtr OutLdPtr InLdPtr FinishPtr FinProcPtr ] external // MBOOT.asm [ MBOOT SwatFlag ]