;Copyright (C) 1984, 1985 by Xerox Corporation. All rights reserved. ;-- stored as [Idun]<WDLion>Dove>IOPDefs.asm ;-- created on 14-Feb-84 11:13:22 ;-- This file contains public definitions which Opie exports to its clients. ;-- Any hardware dependent defintions which Opie uses can be found in ;-- hardOpie.asm, and Opie's private definitions are found in OpieDefs.asm. ; ;-- last edited by: ;-- JPM 24-Jul-85 12:00:42 :Added extendedBusPageOpieAddress ;-- JPM 26-Jun-85 15:40:03 :Removed Crash macro ;-- JPM 24-Jun-85 9:11:00 :Change taskContextBlock again ;-- JPM 20-Jun-85 10:25:05 :Change taskContextBlock ;-- JPM 15-May-85 13:42:34 :Opie redesign ;-- KEK 11-Mar-85 17:40:56 :fixed returnSPSS fatfinger ;-- KEK 2-Mar-85 19:07:37 :add returnSPSS, remove unexpaectedInterrupt and WatchDogTimeout. ;-- VXS 27-Nov-84 11:48:31 :Change DW to DB SIZE QueueEntry in TCB definition. ;-- VXS 20-Nov-84 22:15:55 :Move def of conditionTimeout to IOPMacro.asm ;-- VXS 20-Nov-84 17:06:21 :Take out hardware dependent non-exported definitions and move them into HardOpie.asm ;-- VXS 20-Nov-84 15:13:45 :change TCB structure item queue to taskQueue to avoid naming conflict. ;-- VXS 15-Nov-84 11:53:21 :Add ControlRegData to IOPEFCB ;-- VXS 14-Nov-84 12:59:30 :Introduce QueueEntry structure ;-- VXS 5-Nov-84 16:07:55 :Add map register memory image. ;-- VXS 1-Nov-84 13:19:02 :add conditionTimeout definition ;-- VXS 17-Oct-84 16:34:14 :change floppy and options DMA channels to i186IntrChannelforDMA0 and i186IntrChannelforDMA1 ; : instead of 1 and 2. Also change to using i186IntrChannelforTimer2 for the IOPE timer. ;-- VXS 16-Oct-84 19:26:32 :Add byte to TCB to make it an even number of words. ;-- VXS 12-Oct-84 18:19:09 :add new location to TCB so can restart a task. ;-- VXS 11-Oct-84 11:39:44 :Added mesa page map stuff to IOPE FCB ;-- VXS 11-Oct-84 10:10:30 :Remove Allow? macros ;-- VXS 4-Oct-84 19:15:42 :Add OpieAddressLow to be consistent with OpieAddressHigh alias. ;-- VXS 4-Oct-84 18:05:23 :Add AllowRDC and AllowPC macro definitions for SystemLoop ;-- VXS 4-Oct-84 17:24:28 :Add map register assignments. ;-- VXS 4-Oct-84 15:48:25 :Add TCB location generalMapData ;-- VXS 3-Oct-84 16:58:18 :Moved FloppyTimer stuff to HardDefs since timer 1 is hardwired to floppy stuff. ;-- VXS 1-Oct-84 19:54:31 :Changed some "sizeof" variables to use SIZE of the structure rather than use number by hand ;-- VXS 1-Oct-84 19:04:27 :Added definitions to allocate timer 0 to the floppy disk handler ;-- Corrected Spelling of IOPETimeIntCntrlReg to IOPETimerIntCntrlReg ;-- VXS 1-Oct-84 16:13:19 :Remove client condition definition bit (8000) ;-- VXS 26-Sep-84 15:46:20 :Changed GENONLY listing stuff at Interruptcontrollers macro call ;-- VXS 25-Sep-84 12:48:20 :Eliminate MesaLogicalByte from Opie Addresses ;-- VXS 24-Sep-84 18:30:22 :Change GEN to GENONLY for better listings. ;-- VXS 18-Sep-84 20:22:01 :Fix save,gen, restore stuff to be in first column ;-- VXS 17-Sep-84 18:47:01 :Add symbols for interrupt trouble routine AX indicator values ;-- VXS 17-Sep-84 17:04:20 :Add save,gen,restore around macro expansions to show symbol definitions ;-- VXS 6-Sep-84 14:26:26 :Add new Crash macro. ;-- VXS 27-Aug-84 15:58:46 :Add i8259OptionsSlaveIntrptMaskPort symbol. ;-- VXS 27-Aug-84 15:26:33 :Redefine Opie Addresses ;-- VXS 23-Aug-84 15:53:58 :change sizeOf???Available in IOPEFCB to endOf ;-- VXS 22-Aug-84 16:57:58 :Added i186LogicalOpieAddress (for ds:offset things) ;-- VXS 22-Aug-84 11:12:35 :Put in equates for Opie Addresses, Make IOPEFCB same size as TCBs are (why? find out later) ;-- VXS 14-Aug-84 12:32:57 :Change taskcontextblock for private stacks (take out entryipcs, put in taskSPSS) ;-- VXS 14-Aug-84 12:05:25 :Get rid of sizeofTCB ;-- VXS 7-Aug-84 13:58:01 :Change IntrptVctBase to IntrptVctType for correctness ;-- : Also SoftwareInterruptBase ← Type ;-- VXS 3-Aug-84 13:20:26 :Take out hardware stuff, will now be found in HardDefs.asm ;-- VXS 19-Jul-84 18:16:47 :Put in $GEN directive ;-- VXS 12-Jul-84 16:35:09 :Moved Devices macro here so IOregion can use it ;-- VXS 11-Jul-84 16:28:56 :Took out device specific symbol defs, put them into ; : seperate Definitions files. ;-- JPM 11-Jul-84 11:24:39 :added EEProm indexes (first pass per PJT, 25-Jun-84) ;-- VXS 9-Jul-84 18:23:32 :fixed erroneous definition of i8259EOINonSpecific ;-- VXS 5-Jul-84 16:14:29 :changed sizeofICB def to use SIZE ; :removed individual ICB symbol definitions, replaced ; : with Devices macro in IOPData.asm ; :Fixed error in EOI command port ;-- JPM 3-Jul-84 14:31:37 :added wordsInEEProm ;-- FXB 29-Jun-84 16:18:18 :added Umbilical Handler constants ;-- JMM 27-Jun-84 15:07:10 :Compatible with Opie Version 1 release. ;-- VXS 24-Jun-84 14:36:36 :Changed i80186SlaveIntrptOn to include all ; slave interrupt channels on the master ;-- ETN 26-Jun-84 15:30:15 :TCB struc. ;-- JMM 22-Jun-84 7:06:32 :Misc. fixes. ;-- ETN 21-Jun-84 18:33:26 :Remove IORegion EQUs ;-- JMM 19-Jun-84 22:05:24 :Misc. fixes. ;-- JMM 17-Jun-84 6:39:19 :structure updates. ;-- JMM 10-Jun-84 17:29:33 :Version 1 release. $NOGEN ;--------------------------------------------------- ; ; Constant Equates LowNibbleMask EQU 0FH HighNibbleMask EQU 0F0H Null EQU 0H Nibble EQU 4H ; ;-------------------------------------------------------------------------------- ;Opie DATA STRUCTURES: ; ;----------------------- ; Condition STRUC TCBLinkPtr DW ? Condition ENDS ; sizeOfCondition EQU SIZE Condition nonNilPtr EQU 8000H ;Since 0 is a valid offset, high bit in TCBLinkPtr ; signifies non-null ptr preNotifyFlag EQU 0001H ;If in the TCBLinkPtr for condition variable, ; means prenotify has happened. ;----------------------- ; ClientCondition STRUC handlerID DB ? ;ID of client conditionRelMaskPtr DB ? ; = (maskPtr - conditionPtr) conditionPtr DW ? ;in client's IORegion segment clientMask DW ? ;if 0, conditionRelMaskPtr ignored ClientCondition ENDS sizeOfClientCondition EQU SIZE ClientCondition ;----------------------- ; ;Here are definitions for Opie Addresses. ;An Opie address is a 32 bit quantity which is capable of describing the various ; address spaces and variations on those address spaces encountered in the IOP. ;The addresses are defined as a structure here for clarity, but it may be ; more convenient in actual coding to just use the type equates, and not use ; the structure offsets. ; ;Although this is not guaranteed for all future releases, the type field can ; be thought of as being broken up into 3 fields: ; Bits 7-6 Logical Address Space Selector ; Bits 5-4 Format Determination (Nil, Byte, Word, Page) ; Bits 3-0 Base Specification (dependent on Logical Address Space) ; ;There are several types of nil Opie Address, but only one is really supported. ; ;See OpieAddresses.txt for further discussion of these types. ; ;mesaLogical is mesaVirtual with real memory guaranteed to be behind the involved pages. nilOpieAddress EQU 0 extendedBusOpieAddress EQU 010H extendedBusPageOpieAddress EQU 030H IOPLogicalOpieAddress EQU 050H IOPIORegionOpieAddress EQU 051H PCLogicalOpieAddress EQU 090H mesaLogicalWordOpieAddress EQU 0E0H mesaEnvBaseWord EQU 0E1H mesaLogicalPageOpieAddress EQU 0F0H OpieAddress STRUC OpieAddressA15toA0 DW ? ;bits 15 to 0 OpieAddressA23toA16 DB ? ;bits 23 to 16 OpieAddressType DB ? ;first byte is type, see equates above OpieAddress ENDS ;If OpieAddressType = IOPIORegionOpieAddress OpieAddressHandlerID EQU BYTE PTR OpieAddressA23toA16 ;For accessing the high word as a word (low provided for consistency): OpieAddressHigh EQU WORD PTR OpieAddressA23toA16 OpieAddressLow EQU WORD PTR OpieAddressA15toA0 ;----------------------- ;Map register assignments (machine independent) PCEMapRegisterBase EQU 0 ;base is zero IORegionMapRegister EQU 8+0 ;Has lower 16k shadowed by EPROM. mesaVMMapRegister EQU 8+1 comRecMapRegister EQU 8+2 comSendMapRegister EQU 8+3 floppyDMAMapRegister EQU 8+4 optionDMAMapRegister EQU 8+5 generalMapRegister EQU 8+6 spareMapRegister EQU 8+7 ;Has upper 16K shadowed by EPROM. ; ;----------------------- ; QueueEntry STRUC IOPEQueueType DB ? ;e.g. system, timer nextHandlerID DB ? ;ID of next task in queue nextTCBLinkPtr DW ? ;offset of next task QueueEntry ENDS ;----------------------- ; taskContextBlock STRUC taskQueue DB (SIZE QueueEntry) DUP (?) taskCondition DW ? ;if in waitForCondition state taskICPtr DW ? ;set by ThisTaskServices taskSP DW ? ;holds stack pointer while waiting returnSPSS DW ? ;holds return-from-int addresses DW ? taskState DB ? ;Bits 7-4 Previous state, Bits 3-0 Present state. taskHandlerID DB ? ;set by InitializeTask timerValue DW ? ;counted down by timer taskContextBlock ENDS ;----------------------- ; ICBcodeBytes EQU 6 ;PUSHA, CALL FAR GenericInterruptProcessing interruptContext STRUC ;do not alter the order of the fields! interruptStatus DB ? ;task waiting, active, timed out, ... interruptHandlerID DB ? ;for task servicing this interrupt interruptTCBLinkPtr DW ? ;task (set by ThisTaskServices) interruptTimerValue DW ? ;counted down by watchdog (set by WaitForInterrupt) watchdogLinkPtr DW ? ;next IC in watchdog queue troubleIPCS DW ? ;proc called for unexpected interrupt DW ? ; (set by ThisTaskServices) interruptMask DB ? ;used for enable/disable interruptSlaveEOIcmd DB ? ;used to clear interrupt interruptController DW ? ;link to controller STRUC (private) interruptContext ENDS ; sizeOfIC EQU (SIZE interruptContext) ;in bytes! variableSizeOfIC EQU interruptMask-interruptStatus ;***equals number of bytes in the ; interruptContext that are variable interruptContextBlock STRUC ICBcode DB ICBCodeBytes DUP (?) ICBcontext DB (SIZE InterruptContext) DUP (?) interruptContextBlock ENDS ; sizeOfICB EQU (SIZE interruptContextBlock) ;in bytes! %*DEFINE(softwareIntrptVctType)() ;tell IOPMacro this is not defined.