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94 lines
2.7 KiB
Plaintext
94 lines
2.7 KiB
Plaintext
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;__________________________________________________________________________________________________
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;
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; File: NetBootEqu.a
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;
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; Contains: Network boot equates
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;
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; Written by: Patrick Dyson
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;
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; Copyright © 1989-1990 by Apple Computer, Inc. All rights reserved.
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;
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; Change History (most recent first):
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;
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; <4> 2/20/90 PWD Fixed drive storage equate for extra field on drive queue
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; element. Conflict with local equate caused crash on XO @ drive
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; install time.
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; <3> 12/28/89 SWC Fixed header and set tabs to 4.
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; <2> 12/19/89 PWD Adding to bbs.
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; <1.0> 10/30/89 PWD Adding to EASE
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;__________________________________________________________________________________________________
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;
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; These are the machine ids to ask for boot images with.
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;
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MacMachID EQU 4 ; Machine ID for Spin
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SEMachID EQU 5 ; Machine ID for Mac SEs et all
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;
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; The offsets for our globals
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;
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dProto EQU 0 ; boot protocol id (byte)
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dProtoSlot EQU dProto+1 ; slot for proto driver
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dProtoID EQU dProtoSlot+1 ; ID for driver
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dProtoDriveNum EQU dProtoID+1 ; drive entry number
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dProtoRefNum EQU dProtoDriveNum+1 ; b. proto driver refnum (0 if closed)
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dLastError EQU dProtoRefNum+2 ; last, untranslated error
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doldToExtFS EQU dLastError+2 ; place to save external file system hook when
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; we patch in our routine to catch the mount
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dQDGlobals EQU doldToExtFS+4 ; QD globals
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dMyPort EQU dQDGlobals+grafSize ; our grafport (0 if not open)
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dEnd EQU dMyPort+4 ; end of globals
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dGlobalsSize EQU dEnd ; size of globals
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;
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; Our param block record for calling the .atBoot driver
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;
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returnVCB EQU csCode+2 ; (Ptr) space for return VCB pointer
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returnDrvQ EQU returnVCB+4 ; (Ptr) ditto for drive queue element
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pad EQU returnDrvQ+4
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netBootParamsize EQU pad+7 ; pad out to standard control block
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;
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; our private storage on the end of a drive queue element
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;
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drvStorage EQU dQDrvSz2+2 ; the end of a drive queue element
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;
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; and our extfsID
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;
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dFSID EQU 1 ; to be tagged on our drive queue element
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;
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; Boot protocol driver csCodes
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;
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getBootBlocks EQU 1 ;
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getSysVol EQU 2 ;
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mountSysVol EQU 3 ;
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BPgoodBye EQU 4 ;
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getDriverGlobals EQU 5 ;
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;
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; Boot protocol driver error codes
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;
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dTryAgain EQU -1 ; negative for non-fatal
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dNoError EQU 0 ; zero for no error
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dNeverAgain EQU 1 ; positive for fatal
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;
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; assorted stuff
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;
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controlBit EQU 3 ; Bit for control key down
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controlByte EQU 7 ; Byte for control keys
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; the flags byte
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BOOT_ENABLE EQU $80 ; <pd 4>bit for booting (1 = boot)
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BOOT_RESERVED EQU $70 ; <pd 4>reserved bits
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BOOT_RETRIES EQU $0F ; <pd 4>number of seconds to skip net booting (0-15)
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