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|00000000| 53 75 62 6a 65 63 74 3a | 20 62 6d 20 2d 20 6f 64 |Subject:| bm - od|
|00000010| 64 20 61 64 64 72 65 73 | 73 20 6f 70 74 69 6d 69 |d addres|s optimi|
|00000020| 7a 61 74 69 6f 6e 0a 4e | 65 77 73 67 72 6f 75 70 |zation.N|ewsgroup|
|00000030| 73 3a 20 6d 6f 64 2e 73 | 6f 75 72 63 65 73 0a 41 |s: mod.s|ources.A|
|00000040| 70 70 72 6f 76 65 64 3a | 20 6a 70 6e 40 70 61 6e |pproved:| jpn@pan|
|00000050| 64 61 2e 55 55 43 50 0a | 0a 4d 6f 64 2e 73 6f 75 |da.UUCP.|.Mod.sou|
|00000060| 72 63 65 73 3a 20 20 56 | 6f 6c 75 6d 65 20 35 2c |rces:  V|olume 5,|
|00000070| 20 49 73 73 75 65 20 31 | 36 0a 53 75 62 6d 69 74 | Issue 1|6.Submit|
|00000080| 74 65 64 20 62 79 3a 20 | 74 61 6c 63 6f 74 74 21 |ted by: |talcott!|
|00000090| 74 6f 70 61 7a 21 6c 6c | 6c 2d 63 72 67 21 63 73 |topaz!ll|l-crg!cs|
|000000a0| 75 73 74 61 6e 21 63 61 | 73 65 79 0a 0a 5b 20 49 |ustan!ca|sey..[ I|
|000000b0| 20 68 61 76 65 6e 27 74 | 20 74 72 69 65 64 20 74 | haven't| tried t|
|000000c0| 68 69 73 2c 20 62 75 74 | 20 49 20 62 65 74 20 79 |his, but| I bet y|
|000000d0| 6f 75 20 6f 64 64 2d 61 | 64 64 72 65 73 73 2d 6d |ou odd-a|ddress-m|
|000000e0| 61 63 68 69 6e 65 20 70 | 65 6f 70 6c 65 20 77 69 |achine p|eople wi|
|000000f0| 6c 6c 0a 20 20 62 65 20 | 68 61 70 70 79 20 74 6f |ll.  be |happy to|
|00000100| 20 73 65 65 20 74 68 69 | 73 20 66 69 78 20 2d 20 | see thi|s fix - |
|00000110| 6d 6f 64 65 72 61 74 6f | 72 0a 5d 0a 0a 48 69 2c |moderato|r.]..Hi,|
|00000120| 0a 20 20 49 27 76 65 20 | 6a 75 73 74 20 72 65 63 |.  I've |just rec|
|00000130| 65 6e 74 6c 79 20 70 6f | 72 74 65 65 64 20 62 6d |ently po|rteed bm|
|00000140| 20 74 6f 20 61 20 50 44 | 50 2d 31 31 20 72 75 6e | to a PD|P-11 run|
|00000150| 6e 75 6e 67 20 75 6e 64 | 65 72 20 74 68 65 20 41 |nung und|er the A|
|00000160| 75 67 75 73 74 20 73 65 | 69 73 6d 6f 0a 64 69 73 |ugust se|ismo.dis|
|00000170| 74 72 69 62 75 74 69 6f | 6e 20 6f 66 20 42 53 44 |tributio|n of BSD|
|00000180| 32 2e 39 2e 20 20 49 74 | 20 74 75 72 6e 73 20 6f |2.9.  It| turns o|
|00000190| 75 74 20 74 68 69 73 20 | 77 61 73 6e 27 74 20 61 |ut this |wasn't a|
|000001a0| 6e 20 65 61 73 79 20 70 | 72 6f 63 65 73 73 20 61 |n easy p|rocess a|
|000001b0| 74 20 61 6c 6c 20 61 6e | 64 0a 49 20 77 61 73 20 |t all an|d.I was |
|000001c0| 6d 6f 72 65 20 74 68 61 | 74 20 33 20 68 6f 75 72 |more tha|t 3 hour|
|000001d0| 73 20 69 6e 74 6f 20 69 | 74 20 62 65 66 6f 72 65 |s into i|t before|
|000001e0| 20 49 20 66 6f 75 6e 64 | 20 6f 75 74 20 77 68 79 | I found| out why|
|000001f0| 20 62 6d 20 72 61 6e 20 | 63 6f 72 72 65 63 74 6c | bm ran |correctl|
|00000200| 79 2c 20 62 75 74 0a 61 | 6c 6d 6f 73 74 20 34 20 |y, but.a|lmost 4 |
|00000210| 74 69 6d 65 73 20 73 6c | 6f 77 65 72 20 74 68 61 |times sl|ower tha|
|00000220| 6e 20 66 67 72 65 70 21 | 20 20 54 68 65 20 70 72 |n fgrep!|  The pr|
|00000230| 6f 62 6c 65 6d 20 77 61 | 73 20 62 6d 20 64 6f 69 |oblem wa|s bm doi|
|00000240| 6e 67 20 49 2f 4f 20 6f | 6e 20 6f 64 64 0a 61 64 |ng I/O o|n odd.ad|
|00000250| 64 72 65 73 73 65 73 20 | 61 6e 64 2f 6f 72 20 67 |dresses |and/or g|
|00000260| 6f 69 6e 67 20 66 6f 72 | 20 6f 64 64 20 6c 65 6e |oing for| odd len|
|00000270| 67 74 68 20 74 72 61 6e | 73 66 65 72 73 2e 20 20 |gth tran|sfers.  |
|00000280| 54 68 65 20 70 72 6f 62 | 6c 65 6d 20 72 65 73 74 |The prob|lem rest|
|00000290| 73 20 70 61 72 74 69 61 | 6c 6c 79 0a 77 69 74 68 |s partia|lly.with|
|000002a0| 20 74 68 65 20 50 44 50 | 2d 31 31 20 61 72 63 68 | the PDP|-11 arch|
|000002b0| 69 74 65 63 74 75 72 65 | 20 61 6e 64 20 70 61 72 |itecture| and par|
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|000002d0| 69 6d 70 6c 65 6d 65 6e | 74 61 74 69 6f 6e 20 6f |implemen|tation o|
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|000002f0| 20 6b 65 72 6e 65 6c 2e | 20 20 49 27 6c 6c 20 62 | kernel.|  I'll b|
|00000300| 65 20 66 69 78 69 6e 67 | 20 63 6f 70 79 6f 75 74 |e fixing| copyout|
|00000310| 20 28 61 6e 64 20 63 6f | 70 79 69 6e 20 6f 66 20 | (and co|pyin of |
|00000320| 63 6f 75 72 73 65 29 2c | 20 62 75 74 20 74 68 65 |course),| but the|
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|00000350| 61 69 6e 2e 20 20 41 6e | 64 20 61 73 20 74 68 65 |ain.  An|d as the|
|00000360| 20 50 44 50 20 69 73 6e | 27 74 20 74 68 65 20 6f | PDP isn|'t the o|
|00000370| 6e 6c 79 20 6d 61 63 68 | 69 6e 65 20 74 68 61 74 |nly mach|ine that|
|00000380| 0a 68 61 73 20 62 69 61 | 73 65 73 20 61 62 6f 75 |.has bia|ses abou|
|00000390| 74 20 6f 64 64 20 61 64 | 64 72 65 73 73 65 73 2c |t odd ad|dresses,|
|000003a0| 20 49 20 74 68 6f 75 67 | 68 74 20 49 27 64 20 66 | I thoug|ht I'd f|
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|000003f0| 0a 4c 65 69 74 68 20 28 | 43 61 73 65 79 29 20 4c |.Leith (|Casey) L|
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|000028b0| 20 63 61 6e 27 74 20 6f | 70 65 6e 20 25 73 5c 6e | can't o|pen %s\n|
|000028c0| 22 2c 2a 4f 70 74 50 74 | 72 29 3b 0a 09 09 09 4e |",*OptPt|r);....N|
|000028d0| 6f 74 46 6f 75 6e 64 2b | 2b 3b 0a 09 09 7d 20 65 |otFound+|+;...} e|
|000028e0| 6c 73 65 20 7b 0a 09 09 | 09 72 65 74 20 26 3d 20 |lse {...|.ret &= |
|000028f0| 45 78 65 63 75 74 65 28 | 44 65 73 63 56 65 63 2c |Execute(|DescVec,|
|00002900| 4e 50 61 74 73 2c 54 65 | 78 74 46 69 6c 65 2c 42 |NPats,Te|xtFile,B|
|00002910| 69 67 42 75 66 66 2b 32 | 29 3b 0a 09 09 09 69 66 |igBuff+2|);....if|
|00002920| 20 28 73 46 6c 61 67 20 | 26 26 20 21 72 65 74 29 | (sFlag |&& !ret)|
|00002930| 0a 09 09 09 09 65 78 69 | 74 28 30 29 3b 0a 09 09 |.....exi|t(0);...|
|00002940| 09 63 6c 6f 73 65 28 54 | 65 78 74 46 69 6c 65 29 |.close(T|extFile)|
|00002950| 3b 0a 09 09 7d 20 2f 2a | 20 69 66 20 2a 2f 0a 09 |;...} /*| if */..|
|00002960| 09 2b 2b 4f 70 74 50 74 | 72 3b 0a 09 7d 20 2f 2a |.++OptPt|r;..} /*|
|00002970| 20 77 68 69 6c 65 20 2a | 2f 0a 09 69 66 20 28 63 | while *|/..if (c|
|00002980| 46 6c 61 67 29 20 70 72 | 69 6e 74 66 28 22 25 64 |Flag) pr|intf("%d|
|00002990| 5c 6e 22 2c 4d 61 74 63 | 68 43 6f 75 6e 74 29 3b |\n",Matc|hCount);|
|000029a0| 0a 09 65 78 69 74 28 4e | 6f 74 46 6f 75 6e 64 20 |..exit(N|otFound |
|000029b0| 3f 20 32 20 3a 20 72 65 | 74 29 3b 0a 7d 20 2f 2a |? 2 : re|t);.} /*|
|000029c0| 20 6d 61 69 6e 20 2a 2f | 0a 53 48 41 52 5f 45 4f | main */|.SHAR_EO|
|000029d0| 46 0a 66 69 0a 65 78 69 | 74 20 30 0a 23 09 45 6e |F.fi.exi|t 0.#.En|
|000029e0| 64 20 6f 66 20 73 68 65 | 6c 6c 20 61 72 63 68 69 |d of she|ll archi|
|000029f0| 76 65 0a 0a 0a          |                         |ve...   |        |
+--------+-------------------------+-------------------------+--------+--------+