;
;	File:		SCSIStandard.a
;
;	Contains:	xxx put contents here xxx
;
;	Written by:	xxx put writers here xxx
;
;	Copyright:	© 1993 by Apple Computer, Inc., all rights reserved.
;
;	Change History (most recent first):
;
;		 <1>	10/14/93	pdw		first checked in
;
;





;********************************************************************
; General SCSI stuff
;********************************************************************

; SCSI status


scsiStatGood			equ		$00	; Good Status
scsiStatCheckCondition	equ		$02	; Check Condition
scsiStatConditionMet	equ		$04	; Condition Met
scsiStatBusy			equ		$08	; Busy
scsiStatIntermediate	equ		$10	; Intermediate
scsiStatIntermedMet		equ		$14	; Intermediate - Condition Met
scsiStatResvConflict	equ		$18	; Reservation conflict
scsiStatTerminated		equ		$20	; Command terminated
scsiStatQFull			equ		$28	; Queue full


; SCSI messages

kCmdCompleteMsg					equ		$00
kExtendedMsg					equ		$01
kSaveDataPointerMsg				equ		$02
kRestorePointersMsg				equ		$03
kDisconnectMsg					equ		$04
kInitiatorDetectedErrorMsg		equ		$05
kAbortMsg						equ		$06
kMsgRejectMsg					equ		$07
kNoOperationMsg					equ		$08
kMsgParityErrorMsg				equ		$09
kLinkedCmdCompleteMsg			equ		$0a
kLinkedCmdCompleteWithFlagMsg	equ		$0b
kBusDeviceResetMsg				equ		$0c
kAbortTagMsg					equ		$0d
kClearQueueMsg					equ		$0e
kInitiateRecoveryMsg			equ		$0f
kReleaseRecoveryMsg				equ		$10
kTerminateIOProcessMsg			equ		$11
kSimpleQueueTag					equ		$20
kHeadOfQueueTagMsg				equ		$21
kOrderedQueueTagMsg				equ		$22
kIgnoreWideResidueMsg			equ		$23

				

; SCSI Phases	- 1st 8 phases (thru MessageInPhase) are straight off the chip's phase bits

kDataOutPhase			equ		0
kDataInPhase			equ		1
kCommandPhase			equ		2
kStatusPhase			equ		3
kMessageOutPhase		equ		6
kMessageInPhase			equ		7
kBusFreePhase			equ		8
kArbitratePhase			equ		9
kSelectPhase			equ		$A
kMessageInPhaseNACK		equ		$B