[Cyan]<D0Source>CedarUCode.Dm!4>MIOCDefs.Mc

% File: MIOCDefs.mc

Edit by Danielson on July 23, 1980 3:27 PM:
IOMisc bits for half-duplex bit-synchronous
Edit by Danielson on May 21, 1980 3:58 PM:
New bits for TTY error status
Edit by Danielson on March 21, 1980 5:54 PM:
IOMisc bits for intraframe fill
Edit by Danielson on January 21, 1980 4:48 PM:
Added status bits
Edit by Danielson on January 16, 1980 12:59 PM

MIOC microcode definitions.

%

SET TASK [0];

* Registers used by MIOC code

RV[IOInt0,0];RV[IOSave,0];RV[IOR0,0];
RV[IOInt1,1];
RV[IOTemp0,2];
RV[IOTemp1,3];

RV[IOTemp4,4]; RV[IOPollCmd,4];
RV[IOTemp5,5]; RV[IOResults,5];
RV[IOTemp6,6]; RV[IOTimerInit,6];
RV[IOTemp7,7]; RV[IOTimer,7];

RV[IOTemp10,10]; RV[IOPollStat,10];
RV[IOTemp11,11]; RV[IOPollRegs,11];
RV[IOTemp12,12];
RV[IOMisc,13];* Misc (see below)

RV[IOiocb,14];* IOCB pointer (LONG)
RV[IOiocbHi,15];
RV[IOcsb,16];* CSB pointer (LONG)
RV[IOcsbHi,17];

* IOMisc bits

MC[IOMiscInput,000001];* Input in progress
MC[IOMiscCount,000036];* Current event count
MC[IOMiscFake,000040];* Fake wakeup in progress
MC[IOMiscEnabled,004000];* Chip transmitter enabled

MC[IOMiscFill,000400];* Send fill char ASAP (Byte only)
MC[IOMiscSentFirst,001000];* Sent 1st fill char (Byte only)
MC[IOMiscTimeout,002000];* Timeout occurred (Byte only)

MC[IOMiscEOFTImeout,2000];* Enable EOF timeouts (Bit only)
MC[IOMiscEOFBits,3400];* EOF bits (Bit only)
MC[IOMiscEOFIncr,1000];* Increment EOF state (Bit only)

MC[IOMiscTTYStatEnd,000200];* Bad stat forced end (TTY only)
MC[IOMiscTTYTimeout,000400];* TTY timeout (TTY only)
MC[IOMiscTTYChars,001000];* TTY chars in buffer (TTY only)

* Dispatch and other macros

MACRO[IOWakeDisp,DISPATCH[#1,15,3]];* Wakeup type dispatch
MACRO[IOIntDisp,DISPATCH[#1,14,4]];* Interrupt type dispatch
MACRO[IOPollerDisp,DISPATCH[#1,1,4]];* Poller command dispatch
MACRO[IOLoadNotifyHi,AND@[ADD[LSHIFT[#1,14],#2],177400]C];
MACRO[IOLoadNotifyLo,AND@[ADD[LSHIFT[#1,14],#2],000377]C];
MACRO[IOEventBit,RSHIFT[100000,#1]];* Macro to build event words
* At locations

SET [IOStartXmtrLoc,ADD[LSHIFT[IOPage,10],235]];* Interrupt type
SET [IOTimeoutLoc,ADD[LSHIFT[IOPage,10],236]];* Interrupt type
SET [IOInitOverlayLoc,ADD[LSHIFT[IOPage,10],237]];* Initialization for overlay
SET [IOIntrLoc,ADD[LSHIFT[IOPage,10],240]];* Interrupt type

SET [IOPollLoc,ADD[LSHIFT[IOPage,10],320]];* Action type
SET [IOWakeupLoc,ADD[LSHIFT[IOPage,10],340]];* Wakeup type
SET [IOFixedLoc,ADD[LSHIFT[IOPage,10],360]];* Fixed locations

* Fixed locations

SET [IORdRegALoc,ADD[IOFixedLoc,0]];* Read command--channel A
SET [IORdRegBLoc,ADD[IOFixedLoc,1]];* Read command--channel B
SET [IOWrRegALoc,ADD[IOFixedLoc,2]];* Write command--channel A
SET [IOWrRegBLoc,ADD[IOFixedLoc,3]];* Write command--channel B
SET [IORdDataALoc,ADD[IOFixedLoc,4]];* Read data--channel A
SET [IORdDataBLoc,ADD[IOFixedLoc,5]];* Read data--channel B
SET [IOWrDataALoc,ADD[IOFixedLoc,6]];* Write data--channel A
SET [IOWrDataBLoc,ADD[IOFixedLOc,7]];* Write data--channel B
SET [IOIntrDoneLoc,ADD[IOFixedLoc,10]];* End code for RS232C
SET [IODoNotifyLoc,ADD[IOFixedLoc,11]];* Naked notify code

* CSB offsets

MC[IOcsbPrinterMask,0];* Printer wakeup mask
MC[IOcsbPoller,4];* Poller Command/Reg/Data
MC[IOcsbResults,5];* Results from Poller Command
MC[IOcsbTimerInit,6];* Timer initialize value
MC[IOcsbTimer,7];* Timer current value
MC[IOcsbOut,10];* Output ring read pointer
MC[IOcsbIn,11];* Input ring write pointer
MC[IOcsbMask,12];* Wakeup mask
MC[IOcsbRegs,14];* Reg3/Reg5 data
MC[IOcsbStat,15];* Status
MC[IOcsbTables,16];* LONG POINTER to tables

* IOCB definition

MC[IOIOCBNext,0];* Next IOCB in chain
MC[IOIOCBBCC,1];* Current value of checksum
MC[IOIOCBState,2];* Current state information
MC[IOIOCBStat,3];* IOCB status bits
MC[IOIOCBBuffer,4];* Pointer to data buffer
MC[IOIOCBMaxCount,6];* Buffer length
MC[IOIOCBOffset,7];* Offset to start of data
MC[IOIOCBStart,10];* Starting offset
MC[IOIOCBSynch,11];* Condition variable
MC[IOIOCBBits,12];* Completion bits

* Comm chip commands

MC[IONull,00];* Null command
MC[IOAbort,10];* Send SDLC abort
MC[IOResetExt,20];* Reset external status
MC[IOResetChan,30];* Reset channel
MC[IOEnabIntr,40];* Interrupt on next character
MC[IOResetXmtr,50];* Reset transmitter interrupt
MC[IOResetError,60];* Reset error
MC[IOReturnIntr,70];* Return from interrupt
MC[IOResetRcvrCRC,100];* Reset receiver CRC
MC[IOResetXmtrCRC,200];* Reset transmitter CRC
MC[IOResetUnderrun,300];* Reset underrun/EOM latch

* Load Comm command bits

SET[IOM1,10000];* M1 channel
SET[IOWr,0];* Write
SET[IORd,20000];* Read
SET[IOData,0];* Select data registers
SET[IOCmd,40000];* Select command registers
SET[IOChanA,0];* Select channel A
SET[IOChanB,100000];* Select channel B

* Load interval timer command bits

SET[IOitWrite,400];* Write
SET[IOitRead,1000];* Read
SET[IOitA1,2000];* Addressing bit A1
SET[IOitA0,4000];* Addressing bit A0
SET[IOitEnable,10000];* Enable timer 3 gate

* MIOC output registers

SET[IOResetMIOC,0];* Reset MIOC
SET[IOErrorReset,1];* Reset Error
SET[IOAllowWakeup,2];* Allow Wakeup (if BIT 17 = 1)
SET[IOLoadTimer,3];* Load Interval Timer
SET[IOLoadRS232,4];* Load Communication Chip
SET[IOLoadAutoDial,5];* Load Auto Dialer
SET[IOLoadPlotterCmd,6];* Load Plotter Command
SET[IOLoadPlotterData,7];* Load Plotter Data
MC[IOfOutputReset,14];*Does not use Odata bits

SET[IOLoadPrinter,15];* Load Printer
SET[IOResetTimer,16];* Reset Timer
SET[IOClearRingLatch,17];* Clear Ring Latch

* MIOC input registers

SET[IOReadMIOCID,0];* Read ID
SET[IOReadWakeup,1];* Read Wakeup Status
SET[IOReadTimer,2];* Read Timer Data/Status
SET[IOReadRS232,3];* Read RS232 Data/Status
SET[IOReadAutoDial,4];* Read AutoDial Data/Status
SET[IOReadPlotter,5];* Read Plotter Status
SET[IOReadPrinter,6];* Read Printer Status

MC[IOMIOCId,010000];* Magic Id for MIOC
MC[IOTTYBadStatus,160];* Parity, Framing, DataLost