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| MacBinary | 1993-01-05 | 1.1 MB | [ONLN/HLX2] |
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This file was processed as: MacBinary
(archive/macBinary).
| Confidence | Program | Detection | Match Type | Support
|
|---|
| 10%
| dexvert
| MacBinary (archive/macBinary)
| fallback
| Supported |
| 100%
| file
| MacBinary II, inited, Tue Dec 22 10:35:37 1992, modified Tue Jan 5 09:54:27 1993, creator 'HLX2', type 'ONLN', 1157752 bytes "TN-Devices" , at 0x11aaf8 32378 bytes resource
| default (weak)
| |
| 99%
| file
| data
| default
| |
| 100%
| TrID
| MacBinary 2
| default (weak)
| |
| 100%
| siegfried
| fmt/1762 MacBinary (II)
| default
| |
| 100%
| lsar
| MacBinary
| default
|
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| id metadata |
|---|
| key | value |
|---|
| macFileType | [ONLN] |
| macFileCreator | [HLX2] |
hex view+--------+-------------------------+-------------------------+--------+--------+
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|00004680| 20 20 20 20 20 20 20 20 | 20 20 44 30 20 28 6f 75 | | D0 (ou|
|00004690| 74 70 75 74 29 20 20 20 | 20 20 20 20 ac 20 20 20 |tput) | . |
|000046a0| 20 65 72 72 6f 72 20 63 | 6f 64 65 20 0d 20 20 20 | error c|ode . |
|000046b0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000046c0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000046d0| 20 6e 6f 45 72 72 0d 20 | 20 20 20 20 20 20 20 20 | noErr. | |
|000046e0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 | | |
|000046f0| 20 20 20 20 20 20 20 20 | 20 20 20 71 45 72 72 0d | | qErr.|
|00004700| 49 6e 74 65 72 66 61 63 | 65 73 0d 54 68 72 6f 75 |Interfac|es.Throu|
|00004710| 67 68 20 61 20 73 65 71 | 75 65 6e 63 65 20 6f 66 |gh a seq|uence of|
|00004720| 20 63 61 74 61 63 6c 79 | 73 6d 69 63 20 65 76 65 | catacly|smic eve|
|00004730| 6e 74 73 2c 20 74 68 65 | 20 67 6c 75 65 20 63 6f |nts, the| glue co|
|00004740| 64 65 20 66 6f 72 20 5f | 44 72 76 72 49 6e 73 74 |de for _|DrvrInst|
|00004750| 61 6c 6c 20 61 6e 64 20 | 5f 44 72 76 72 52 65 6d |all and |_DrvrRem|
|00004760| 6f 76 65 20 77 61 73 20 | 6e 65 76 65 72 20 61 63 |ove was |never ac|
|00004770| 74 75 61 6c 6c 79 20 61 | 64 64 65 64 20 74 6f 20 |tually a|dded to |
|00004780| 74 68 65 20 4d 50 57 20 | 69 6e 74 65 72 66 61 63 |the MPW |interfac|
|00004790| 65 73 20 28 69 2e 65 2e | 2c 20 d2 57 65 20 66 6f |es (i.e.|, .We fo|
|000047a0| 72 67 6f 74 2e d3 29 2c | 20 73 6f 20 77 65 20 77 |rgot..),| so we w|
|000047b0| 69 6c 6c 20 69 6e 63 6c | 75 64 65 20 73 69 6d 70 |ill incl|ude simp|
|000047c0| 6c 65 20 67 6c 75 65 20 | 68 65 72 65 20 61 74 20 |le glue |here at |
|000047d0| 6e 6f 20 65 78 74 72 61 | 20 65 78 70 65 6e 73 65 |no extra| expense|
|000047e0| 20 74 6f 20 79 6f 75 2e | 0d 49 74 20 77 6f 75 6c | to you.|.It woul|
|000047f0| 64 20 62 65 20 61 64 76 | 69 73 61 62 6c 65 20 74 |d be adv|isable t|
|00004800| 6f 20 66 69 72 73 74 20 | 6c 6f 63 6b 20 74 68 65 |o first |lock the|
|00004810| 20 68 61 6e 64 6c 65 20 | 74 6f 20 79 6f 75 72 20 | handle |to your |
|00004820| 64 72 69 76 65 72 20 77 | 69 74 68 20 5f 48 4c 6f |driver w|ith _HLo|
|00004830| 63 6b 20 62 65 66 6f 72 | 65 20 6d 61 6b 69 6e 67 |ck befor|e making|
|00004840| 20 65 69 74 68 65 72 20 | 6f 66 20 74 68 65 73 65 | either |of these|
|00004850| 20 63 61 6c 6c 73 20 73 | 69 6e 63 65 20 6d 65 6d | calls s|ince mem|
|00004860| 6f 72 79 20 6d 61 79 20 | 62 65 20 6d 6f 76 65 64 |ory may |be moved|
|00004870| 2e 0d 20 20 20 20 20 20 | 20 3b 2d 2d 2d 2d 2d 2d |.. | ;------|
|00004880| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004890| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000048a0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|000048b0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 0d 20 20 20 20 20 20 |--------|-. |
|000048c0| 20 3b 20 46 55 4e 43 54 | 49 4f 4e 20 44 52 56 52 | ; FUNCT|ION DRVR|
|000048d0| 49 6e 73 74 61 6c 6c 28 | 64 72 76 72 48 61 6e 64 |Install(|drvrHand|
|000048e0| 6c 65 3a 48 61 6e 64 6c | 65 3b 20 72 65 66 4e 75 |le:Handl|e; refNu|
|000048f0| 6d 3a 49 4e 54 45 47 45 | 52 29 3a 4f 53 45 72 72 |m:INTEGE|R):OSErr|
|00004900| 3b 0d 20 20 20 20 20 20 | 20 3b 2d 2d 2d 2d 2d 2d |;. | ;------|
|00004910| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004920| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004930| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004940| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 0d 20 20 20 20 20 20 |--------|-. |
|00004950| 20 44 52 56 52 49 6e 73 | 74 61 6c 6c 20 20 20 20 | DRVRIns|tall |
|00004960| 20 20 50 52 4f 43 20 20 | 20 20 45 58 50 4f 52 54 | PROC | EXPORT|
|00004970| 0d 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 4d |. | M|
|00004980| 4f 56 45 41 2e 4c 20 20 | 20 20 20 20 20 20 20 20 |OVEA.L | |
|00004990| 20 28 53 50 29 2b 2c 20 | 41 31 20 20 20 20 3b 20 | (SP)+, |A1 ; |
|000049a0| 70 6f 70 20 72 65 74 75 | 72 6e 20 61 64 64 72 65 |pop retu|rn addre|
|000049b0| 73 73 0d 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |ss. | |
|000049c0| 20 4d 4f 56 45 2e 57 09 | 20 20 20 20 20 20 20 20 | MOVE.W.| |
|000049d0| 20 20 28 53 50 29 2b 2c | 20 44 30 20 20 20 20 3b | (SP)+,| D0 ;|
|000049e0| 20 64 72 69 76 65 72 20 | 72 65 66 65 72 65 6e 63 | driver |referenc|
|000049f0| 65 20 6e 75 6d 62 65 72 | 0d 20 20 20 20 20 20 20 |e number|. |
|00004a00| 20 20 20 20 20 20 20 4d | 4f 56 45 41 2e 4c 20 20 | M|OVEA.L |
|00004a10| 20 20 20 20 20 20 20 20 | 20 28 53 50 29 2b 2c 20 | | (SP)+, |
|00004a20| 41 30 20 20 20 20 3b 20 | 68 61 6e 64 6c 65 20 74 |A0 ; |handle t|
|00004a30| 6f 20 64 72 69 76 65 72 | 20 0d 20 20 20 20 20 20 |o driver| . |
|00004a40| 20 20 20 20 20 20 20 20 | 4d 4f 56 45 41 2e 4c 20 | |MOVEA.L |
|00004a50| 20 20 20 20 20 20 20 20 | 20 20 28 41 30 29 2c 20 | | (A0), |
|00004a60| 41 30 20 20 20 20 20 3b | 20 70 6f 69 6e 74 65 72 |A0 ;| pointer|
|00004a70| 20 74 6f 20 64 72 69 76 | 65 72 0d 20 20 20 20 20 | to driv|er. |
|00004a80| 20 20 20 20 20 20 20 20 | 20 5f 44 72 76 72 49 6e | | _DrvrIn|
|00004a90| 73 74 61 6c 6c 20 20 20 | 20 20 20 20 20 20 20 20 |stall | |
|00004aa0| 20 20 20 20 20 20 20 20 | 3b 20 24 41 30 33 44 0d | |; $A03D.|
|00004ab0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 4d 4f | | MO|
|00004ac0| 56 45 2e 57 20 20 20 20 | 20 20 20 20 20 20 20 20 |VE.W | |
|00004ad0| 44 30 2c 20 28 53 50 29 | 20 20 20 20 20 3b 20 67 |D0, (SP)| ; g|
|00004ae0| 65 74 20 65 72 72 6f 72 | 0d 20 20 20 20 20 20 20 |et error|. |
|00004af0| 20 20 20 20 20 20 20 4a | 4d 50 20 20 20 20 20 20 | J|MP |
|00004b00| 20 20 20 20 20 20 20 20 | 20 28 41 31 29 20 20 20 | | (A1) |
|00004b10| 20 20 20 20 20 20 3b 20 | 26 20 73 70 6c 69 74 0d | ; |& split.|
|00004b20| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 45 4e | | EN|
|00004b30| 44 50 50 52 4f 43 0d 20 | 20 20 20 20 20 20 3b 2d |DPPROC. | ;-|
|00004b40| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004b50| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004b60| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004b70| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 0d 20 |--------|------. |
|00004b80| 20 20 20 20 20 20 3b 20 | 46 55 4e 43 54 49 4f 4e | ; |FUNCTION|
|00004b90| 20 44 52 56 52 52 65 6d | 6f 76 65 28 72 65 66 4e | DRVRRem|ove(refN|
|00004ba0| 75 6d 3a 49 4e 54 45 47 | 45 52 29 3a 4f 53 45 72 |um:INTEG|ER):OSEr|
|00004bb0| 72 3b 0d 20 20 20 20 20 | 20 20 3b 2d 2d 2d 2d 2d |r;. | ;-----|
|00004bc0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004bd0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004be0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 2d 2d 2d 2d 2d 2d |--------|--------|
|00004bf0| 2d 2d 2d 2d 2d 2d 2d 2d | 2d 2d 0d 20 20 20 20 20 |--------|--. |
|00004c00| 20 20 44 52 56 52 52 65 | 6d 6f 76 65 20 20 20 20 | DRVRRe|move |
|00004c10| 20 20 50 52 4f 43 20 20 | 20 20 45 58 50 4f 52 54 | PROC | EXPORT|
|00004c20| 0d 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 4d |. | M|
|00004c30| 4f 56 45 41 2e 4c 20 20 | 20 20 20 20 20 20 20 20 |OVEA.L | |
|00004c40| 28 53 50 29 2b 2c 20 41 | 31 20 20 20 20 3b 20 70 |(SP)+, A|1 ; p|
|00004c50| 6f 70 20 72 65 74 75 72 | 6e 20 61 64 64 72 65 73 |op retur|n addres|
|00004c60| 73 0d 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |s. | |
|00004c70| 4d 4f 56 45 2e 57 20 20 | 20 20 20 20 20 20 20 20 |MOVE.W | |
|00004c80| 20 28 53 50 29 2b 2c 20 | 44 30 20 20 20 20 3b 20 | (SP)+, |D0 ; |
|00004c90| 64 72 69 76 65 72 20 72 | 65 66 65 72 65 6e 63 65 |driver r|eference|
|00004ca0| 20 6e 75 6d 62 65 72 0d | 20 20 20 20 20 20 20 20 | number.| |
|00004cb0| 20 20 20 20 20 20 5f 44 | 72 76 72 52 65 6d 6f 76 | _D|rvrRemov|
|00004cc0| 65 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |e | |
|00004cd0| 20 20 20 20 3b 20 24 41 | 30 33 45 0d 20 20 20 20 | ; $A|03E. |
|00004ce0| 20 20 20 20 20 20 20 20 | 20 20 4d 4f 56 45 2e 57 | | MOVE.W|
|00004cf0| 20 20 20 20 20 20 20 20 | 20 20 20 44 30 2c 20 28 | | D0, (|
|00004d00| 53 50 29 20 20 20 20 20 | 3b 20 67 65 74 20 65 72 |SP) |; get er|
|00004d10| 72 6f 72 0d 20 20 20 20 | 20 20 20 20 20 20 20 20 |ror. | |
|00004d20| 20 20 4a 4d 50 20 20 20 | 20 20 20 20 20 20 20 20 | JMP | |
|00004d30| 20 20 20 28 41 31 29 20 | 20 20 20 20 20 20 20 20 | (A1) | |
|00004d40| 3b 20 26 20 73 70 6c 69 | 74 0d 20 20 20 20 20 20 |; & spli|t. |
|00004d50| 20 20 20 20 20 20 20 20 | 45 4e 44 50 50 52 4f 43 | |ENDPPROC|
|00004d60| 0d 42 6f 6f 74 20 42 6c | 6f 63 6b 73 0d 44 65 76 |.Boot Bl|ocks.Dev|
|00004d70| 69 63 65 73 09 4d 2e 44 | 56 2e 42 6f 6f 74 42 6c |ices.M.D|V.BootBl|
|00004d80| 6f 63 6b 73 0d 52 65 76 | 69 73 65 64 20 62 79 3a |ocks.Rev|ised by:|
|00004d90| 09 09 4d 61 72 63 68 20 | 31 39 38 38 0d 57 72 69 |..March |1988.Wri|
|00004da0| 74 74 65 6e 20 62 79 3a | 09 42 6f 62 20 4a 6f 68 |tten by:|.Bob Joh|
|00004db0| 6e 73 6f 6e 09 4d 61 72 | 63 68 20 31 39 38 37 0d |nson.Mar|ch 1987.|
|00004dc0| 54 68 65 72 65 20 61 72 | 65 20 74 77 6f 20 75 6e |There ar|e two un|
|00004dd0| 64 6f 63 75 6d 65 6e 74 | 65 64 20 66 65 61 74 75 |document|ed featu|
|00004de0| 72 65 73 20 6f 66 20 74 | 68 65 20 42 6f 6f 74 20 |res of t|he Boot |
|00004df0| 42 6c 6f 63 6b 73 2e 20 | 54 68 69 73 20 6e 6f 74 |Blocks. |This not|
|00004e00| 65 20 77 69 6c 6c 20 64 | 65 73 63 72 69 62 65 20 |e will d|escribe |
|00004e10| 68 6f 77 20 74 68 65 79 | 20 63 75 72 72 65 6e 74 |how they| current|
|00004e20| 6c 79 20 77 6f 72 6b 2e | 0d 57 61 72 6e 69 6e 67 |ly work.|.Warning|
|00004e30| 3a 09 54 68 65 20 66 6f | 72 6d 61 74 20 61 6e 64 |:.The fo|rmat and|
|00004e40| 20 66 75 6e 63 74 69 6f | 6e 61 6c 69 74 79 20 6f | functio|nality o|
|00004e50| 66 20 74 68 65 20 42 6f | 6f 74 20 42 6c 6f 63 6b |f the Bo|ot Block|
|00004e60| 73 20 77 69 6c 6c 20 63 | 68 61 6e 67 65 20 69 6e |s will c|hange in|
|00004e70| 20 74 68 65 20 66 75 74 | 75 72 65 3b 20 64 65 70 | the fut|ure; dep|
|00004e80| 65 6e 64 65 6e 63 65 20 | 6f 6e 20 74 68 69 73 20 |endence |on this |
|00004e90| 69 6e 66 6f 72 6d 61 74 | 69 6f 6e 20 6d 61 79 20 |informat|ion may |
|00004ea0| 63 61 75 73 65 20 79 6f | 75 72 20 70 72 6f 67 72 |cause yo|ur progr|
|00004eb0| 61 6d 20 74 6f 20 66 61 | 69 6c 20 6f 6e 20 66 75 |am to fa|il on fu|
|00004ec0| 74 75 72 65 20 68 61 72 | 64 77 61 72 65 20 6f 72 |ture har|dware or|
|00004ed0| 20 77 69 74 68 20 66 75 | 74 75 72 65 20 53 79 73 | with fu|ture Sys|
|00004ee0| 74 65 6d 20 73 6f 66 74 | 77 61 72 65 2e 0d 54 68 |tem soft|ware..Th|
|00004ef0| 65 20 66 69 72 73 74 20 | 74 77 6f 20 73 65 63 74 |e first |two sect|
|00004f00| 6f 72 73 20 6f 66 20 61 | 20 62 6f 6f 74 61 62 6c |ors of a| bootabl|
|00004f10| 65 20 4d 61 63 69 6e 74 | 6f 73 68 20 64 69 73 6b |e Macint|osh disk|
|00004f20| 20 61 72 65 20 75 73 65 | 64 20 74 6f 20 73 74 6f | are use|d to sto|
|00004f30| 72 65 20 69 6e 66 6f 72 | 6d 61 74 69 6f 6e 20 6f |re infor|mation o|
|00004f40| 6e 20 68 6f 77 20 74 6f | 20 73 74 61 72 74 20 75 |n how to| start u|
|00004f50| 70 20 74 68 65 20 63 6f | 6d 70 75 74 65 72 2e 20 |p the co|mputer. |
|00004f60| 54 68 65 20 62 6c 6f 63 | 6b 73 20 63 6f 6e 74 61 |The bloc|ks conta|
|00004f70| 69 6e 20 76 61 72 69 6f | 75 73 20 70 61 72 61 6d |in vario|us param|
|00004f80| 65 74 65 72 73 20 74 68 | 61 74 20 74 68 65 20 73 |eters th|at the s|
|00004f90| 79 73 74 65 6d 20 75 73 | 65 73 20 74 6f 20 73 74 |ystem us|es to st|
|00004fa0| 61 72 74 75 70 20 73 75 | 63 68 20 61 73 20 74 68 |artup su|ch as th|
|00004fb0| 65 20 6e 61 6d 65 20 6f | 66 20 74 68 65 20 73 79 |e name o|f the sy|
|00004fc0| 73 74 65 6d 20 66 69 6c | 65 2c 20 74 68 65 20 6e |stem fil|e, the n|
|00004fd0| 61 6d 65 20 6f 66 20 74 | 68 65 20 46 69 6e 64 65 |ame of t|he Finde|
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|00004ff0| 6c 69 63 61 74 69 6f 6e | 20 74 6f 20 72 75 6e 20 |lication| to run |
|00005000| 61 74 20 62 6f 6f 74 20 | 74 69 6d 65 2c 20 74 68 |at boot |time, th|
|00005010| 65 20 6e 75 6d 62 65 72 | 20 6f 66 20 65 76 65 6e |e number| of even|
|00005020| 74 73 20 74 6f 20 61 6c | 6c 6f 77 2c 20 65 74 63 |ts to al|low, etc|
|00005030| 2e 0d 43 68 61 6e 67 69 | 6e 67 20 53 79 73 74 65 |..Changi|ng Syste|
|00005040| 6d 20 48 65 61 70 20 53 | 69 7a 65 0d 54 68 65 20 |m Heap S|ize.The |
|00005050| 62 6f 6f 74 20 62 6c 6f | 63 6b 73 20 64 69 63 74 |boot blo|cks dict|
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|00005090| 69 6e 67 2e 20 41 6e 79 | 20 63 6f 6d 6d 6f 6e 20 |ing. Any| common |
|000050a0| 73 65 63 74 6f 72 20 65 | 64 69 74 69 6e 67 20 70 |sector e|diting p|
|000050b0| 72 6f 67 72 61 6d 20 77 | 69 6c 6c 20 61 6c 6c 6f |rogram w|ill allo|
|000050c0| 77 20 79 6f 75 20 74 6f | 20 63 68 61 6e 67 65 20 |w you to| change |
|000050d0| 74 68 65 20 64 61 74 61 | 20 69 6e 20 74 68 65 20 |the data| in the |
|000050e0| 62 6f 6f 74 20 62 6c 6f | 63 6b 73 2e 20 43 68 61 |boot blo|cks. Cha|
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|00005110| 63 6f 6d 70 6c 69 73 68 | 65 64 20 62 79 20 63 68 |complish|ed by ch|
|00005120| 61 6e 67 69 6e 67 20 74 | 77 6f 20 70 61 72 61 6d |anging t|wo param|
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|00005150| 6e 67 20 77 6f 72 64 20 | 76 61 6c 75 65 20 61 74 |ng word |value at|
|00005160| 20 6c 6f 63 61 74 69 6f | 6e 20 24 38 36 20 69 6e | locatio|n $86 in|
|00005170| 20 42 6c 6f 63 6b 20 30 | 20 69 6e 64 69 63 61 74 | Block 0| indicat|
|00005180| 65 73 20 74 68 65 20 73 | 69 7a 65 20 6f 66 20 74 |es the s|ize of t|
|00005190| 68 65 20 73 79 73 74 65 | 6d 20 68 65 61 70 3b 20 |he syste|m heap; |
|000051a0| 74 68 65 20 77 6f 72 64 | 20 76 61 6c 75 65 20 61 |the word| value a|
|000051b0| 74 20 6c 6f 63 61 74 69 | 6f 6e 20 24 36 20 69 73 |t locati|on $6 is|
|000051c0| 20 74 68 65 20 76 65 72 | 73 69 6f 6e 20 6e 75 6d | the ver|sion num|
|000051d0| 62 65 72 20 6f 66 20 74 | 68 65 20 62 6f 6f 74 20 |ber of t|he boot |
|000051e0| 62 6c 6f 63 6b 73 2e 20 | 43 68 61 6e 67 69 6e 67 |blocks. |Changing|
|000051f0| 20 74 68 65 20 76 65 72 | 73 69 6f 6e 20 6e 75 6d | the ver|sion num|
|00005200| 62 65 72 20 74 6f 20 62 | 65 20 67 72 65 61 74 65 |ber to b|e greate|
|00005210| 72 20 74 68 61 6e 20 24 | 31 34 20 28 24 31 35 20 |r than $|14 ($15 |
|00005220| 69 73 20 72 65 63 6f 6d | 6d 65 6e 64 65 64 29 20 |is recom|mended) |
|00005230| 74 65 6c 6c 73 20 74 68 | 65 20 52 4f 4d 20 74 6f |tells th|e ROM to|
|00005240| 20 75 73 65 20 74 68 65 | 20 76 61 6c 75 65 20 61 | use the| value a|
|00005250| 74 20 24 38 36 20 66 6f | 72 20 74 68 65 20 73 79 |t $86 fo|r the sy|
|00005260| 73 74 65 6d 20 68 65 61 | 70 20 73 69 7a 65 2c 20 |stem hea|p size, |
|00005270| 6f 74 68 65 72 77 69 73 | 65 20 74 68 65 20 76 61 |otherwis|e the va|
|00005280| 6c 75 65 20 61 74 20 24 | 38 36 20 69 73 20 69 67 |lue at $|86 is ig|
|00005290| 6e 6f 72 65 64 2e 20 54 | 68 65 20 24 38 36 20 6c |nored. T|he $86 l|
|000052a0| 6f 63 61 74 69 6f 6e 20 | 6f 6e 6c 79 20 61 70 70 |ocation |only app|
|000052b0| 6c 69 65 73 20 74 6f 20 | 63 6f 6d 70 75 74 65 72 |lies to |computer|
|000052c0| 73 20 77 69 74 68 20 6d | 6f 72 65 20 74 68 61 6e |s with m|ore than|
|000052d0| 20 31 32 38 4b 20 6f 66 | 20 52 41 4d 2e 20 0d 53 | 128K of| RAM. .S|
|000052e0| 65 63 6f 6e 64 61 72 79 | 20 53 6f 75 6e 64 20 61 |econdary| Sound a|
|000052f0| 6e 64 20 56 69 64 65 6f | 20 50 61 67 65 73 0d 41 |nd Video| Pages.A|
|00005300| 6e 6f 74 68 65 72 20 6f | 63 63 61 73 69 6f 6e 61 |nother o|ccasiona|
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|00005320| 72 65 20 6f 66 20 74 68 | 65 20 62 6f 6f 74 20 62 |re of th|e boot b|
|00005330| 6c 6f 63 6b 73 20 69 73 | 20 74 68 65 20 61 62 69 |locks is| the abi|
|00005340| 6c 69 74 79 20 74 6f 20 | 73 70 65 63 69 66 79 20 |lity to |specify |
|00005350| 74 68 61 74 20 74 68 65 | 20 73 65 63 6f 6e 64 61 |that the| seconda|
|00005360| 72 79 20 73 6f 75 6e 64 | 20 61 6e 64 20 76 69 64 |ry sound| and vid|
|00005370| 65 6f 20 70 61 67 65 73 | 20 62 65 20 61 6c 6c 6f |eo pages| be allo|
|00005380| 63 61 74 65 64 20 61 74 | 20 62 6f 6f 74 20 74 69 |cated at| boot ti|
|00005390| 6d 65 2e 20 54 68 69 73 | 20 69 73 20 64 6f 6e 65 |me. This| is done|
|000053a0| 20 62 65 66 6f 72 65 20 | 61 20 64 65 62 75 67 67 | before |a debugg|
|000053b0| 65 72 20 69 73 20 6c 6f | 61 64 65 64 2c 20 73 6f |er is lo|aded, so|
|000053c0| 20 74 68 65 20 64 65 62 | 75 67 67 65 72 20 77 69 | the deb|ugger wi|
|000053d0| 6c 6c 20 6c 6f 61 64 20 | 62 65 6c 6f 77 20 74 68 |ll load |below th|
|000053e0| 65 20 61 6c 74 65 72 6e | 61 74 65 20 73 63 72 65 |e altern|ate scre|
|000053f0| 65 6e 2e 20 54 68 69 73 | 20 69 73 20 75 73 65 66 |en. This| is usef|
|00005400| 75 6c 20 66 6f 72 20 64 | 65 62 75 67 67 69 6e 67 |ul for d|ebugging|
|00005410| 20 73 6f 66 74 77 61 72 | 65 20 74 68 61 74 20 75 | softwar|e that u|
|00005420| 73 65 73 20 74 68 65 20 | 61 6c 74 65 72 6e 61 74 |ses the |alternat|
|00005430| 65 20 76 69 64 65 6f 20 | 70 61 67 65 2c 20 6c 69 |e video |page, li|
|00005440| 6b 65 20 70 61 67 65 2d | 66 6c 69 70 70 69 6e 67 |ke page-|flipping|
|00005450| 20 64 65 6d 6f 73 20 6f | 72 20 67 61 6d 65 73 2e | demos o|r games.|
|00005460| 20 54 6f 20 61 6c 6c 6f | 63 61 74 65 20 74 68 65 | To allo|cate the|
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|00006280| 20 53 43 53 49 20 44 69 | 73 6b 2e 20 54 68 65 72 | SCSI Di|sk. Ther|
|00006290| 65 20 63 61 6e 20 62 65 | 20 6d 6f 72 65 20 74 68 |e can be| more th|
|000062a0| 61 6e 20 6f 6e 65 20 4d | 61 63 69 6e 74 6f 73 68 |an one M|acintosh|
|000062b0| 20 76 6f 6c 75 6d 65 20 | 6f 6e 20 61 20 67 69 76 | volume |on a giv|
|000062c0| 65 6e 20 64 69 73 6b 2c | 20 6f 72 20 65 76 65 6e |en disk,| or even|
|000062d0| 20 6f 74 68 65 72 20 76 | 6f 6c 75 6d 65 73 20 74 | other v|olumes t|
|000062e0| 68 61 74 20 61 72 65 20 | 6e 6f 74 20 4d 61 63 69 |hat are |not Maci|
|000062f0| 6e 74 6f 73 68 20 76 6f | 6c 75 6d 65 73 2e 0d 31 |ntosh vo|lumes..1|
|00006300| 29 20 43 68 65 63 6b 20 | 74 68 65 20 53 43 53 49 |) Check |the SCSI|
|00006310| 20 70 6f 72 74 3a 0d 49 | 6d 6d 65 64 69 61 74 65 | port:.I|mmediate|
|00006320| 6c 79 20 61 66 74 65 72 | 20 74 68 65 20 52 41 4d |ly after| the RAM|
|00006330| 20 63 68 65 63 6b 2c 20 | 74 68 65 20 73 79 73 74 | check, |the syst|
|00006340| 65 6d 20 6c 6f 6f 6b 73 | 20 61 74 20 74 68 65 20 |em looks| at the |
|00006350| 53 43 53 49 20 70 6f 72 | 74 20 74 6f 20 73 65 65 |SCSI por|t to see|
|00006360| 20 69 66 20 74 68 65 72 | 65 20 61 72 65 20 61 6e | if ther|e are an|
|00006370| 79 20 64 72 69 76 65 73 | 20 63 6f 6e 6e 65 63 74 |y drives| connect|
|00006380| 65 64 2e 20 49 66 20 61 | 20 53 43 53 49 20 64 72 |ed. If a| SCSI dr|
|00006390| 69 76 65 20 69 73 20 66 | 6f 75 6e 64 20 74 68 65 |ive is f|ound the|
|000063a0| 20 73 79 73 74 65 6d 20 | 72 65 61 64 73 20 74 68 | system |reads th|
|000063b0| 65 20 53 43 53 49 20 70 | 61 72 74 69 74 69 6f 6e |e SCSI p|artition|
|000063c0| 20 69 6e 66 6f 72 6d 61 | 74 69 6f 6e 20 69 6e 20 | informa|tion in |
|000063d0| 62 6c 6f 63 6b 20 30 2e | 20 54 68 69 73 20 62 6c |block 0.| This bl|
|000063e0| 6f 63 6b 20 69 73 20 73 | 70 65 63 69 66 69 63 20 |ock is s|pecific |
|000063f0| 74 6f 20 53 43 53 49 20 | 64 72 69 76 65 73 20 61 |to SCSI |drives a|
+--------+-------------------------+-------------------------+--------+--------+
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