Mercurial > hg > Members > kono > nitros9-code
annotate defs/pipedefs @ 1219:5d025106d1ea
Rodney added bitfield instructions
| author | boisy |
|---|---|
| date | Tue, 01 Jul 2003 02:55:21 +0000 |
| parents | 0a678473d5cf |
| children | 8d4b5ee1cee4 |
| rev | line source |
|---|---|
| 516 | 1 IFEQ PIPEDEFS |
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c07686556109
Added ifeq statements at top to allow for multiple use's of same def
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c07686556109
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3 PIPEDEFS set 1 |
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c07686556109
Added ifeq statements at top to allow for multiple use's of same def
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4 |
| 1200 | 5 ******************************************************************** |
| 6 * PipeDefs - Pipe File Manager Definitions | |
| 516 | 7 * |
| 1200 | 8 * $Id$ |
| 516 | 9 * |
| 1200 | 10 * Edt/Rev YYYY/MM/DD Modified by |
| 11 * Comment | |
| 12 * ------------------------------------------------------------------ | |
| 13 * 1988/12/03 Chris J. Burke | |
| 14 * Coded from new PIPEMAN comments. | |
| 516 | 15 |
| 16 | |
| 0 | 17 nam PipeDefs |
| 1200 | 18 ttl Pipe File Manager Definitions |
| 0 | 19 |
| 1200 | 20 |
| 0 | 21 * |
| 22 * IOMan equates duplicated for PipeMan use | |
| 23 * | |
| 24 | |
| 25 NPATHS set 16 ;Maximum local paths per task -- must match IOMan | |
| 26 NameMax set 29 ;Maximum length of a file name | |
| 27 | |
| 28 * | |
| 29 * Device Driver Static Storage Layout | |
| 30 * | |
| 31 org V.User | |
| 32 V.List rmb 2 ;Pointer to 1st pipe's pipe buffer | |
| 33 PManMem equ . ;Device driver memory (drive table equivalent) | |
| 34 | |
| 35 * | |
| 36 * Pipe Buffer Data Structure | |
| 37 * | |
| 38 org 0 | |
| 39 PP.PD rmb 2 ;Pointer to shared path descriptor | |
| 40 PP.Next rmb 2 ;Pointer to next pipe buffer in system map | |
| 41 PP.Prev rmb 2 ;Pointer to previous pipe buffer in system map | |
| 42 PP.Rsrv rmb 2 ;Reserved | |
| 43 PP.Data equ . ;Data buffer begins at this offset | |
| 44 | |
| 45 * | |
| 46 * Unique Path Descriptor Variables | |
| 47 * | |
| 48 org PD.FST | |
| 49 *** PP.Read must have bit 4 clear; PP.Writ must be PP.Read XOR 4 | |
| 50 PD.Read equ . | |
| 51 PD.RPID rmb 1 ;Process ID of reader waiting on signal | |
| 52 PD.RCT rmb 1 ;Number of blocked readers | |
| 53 PD.RSIG rmb 1 ;Signal to send reader | |
| 54 PD.REOR rmb 1 ;Read EOR character | |
| 55 PD.Writ equ . | |
| 56 PD.WPID rmb 1 ;Process ID of writer waiting on signal | |
| 57 PD.WCT rmb 1 ;Number of blocked writers | |
| 58 PD.WSIG rmb 1 ;Signal to send writer | |
| 59 PD.WEOR rmb 1 ;Write EOR character (dummy) | |
| 60 *** End of special section | |
| 61 PD.End rmb 2 ;Pointer to end of pipe buffer | |
| 62 PD.NxtI rmb 2 ;Next in pointer | |
| 63 PD.NxtO rmb 2 ;Next out pointer | |
| 64 PD.RFlg rmb 1 ;"Ready" flag | |
| 65 PD.Wrtn rmb 1 ;"Written" flag | |
| 66 PD.BCnt rmb 2 ;# queue elements currently bufered | |
| 67 PD.Own rmb 1 ;Process ID of pipe original creator | |
| 68 PD.Keep rmb 1 ;Non-zero if pipe has been kept open artificailly | |
| 69 PD.QSiz rmb 2 ;Max. elements in queue (copied from OPT section) | |
| 70 | |
| 71 * | |
| 72 * Path descriptor option section | |
| 73 * | |
| 74 * Note that PD.Name overlaps with the last byte of PD.ECnt. | |
| 75 * PD.ECnt is copied to PD.QSiz as part of OPEN or CREATE, | |
| 76 * to make room for the pipe name. | |
| 77 * | |
| 78 org (PD.OPT+1) | |
| 79 PD.ESiz rmb 1 ;Size of each queue element | |
| 80 PD.ECnt rmb 2 ;Max. elements in queue (initial position) | |
| 516 | 81 IFGT Level-1 |
| 82 org (PD.OPT+3) | |
| 83 PD.Name rmb NameMax | |
| 84 ENDC | |
| 0 | 85 |
| 86 * | |
| 87 * Device Descriptor definitions | |
| 88 * | |
| 89 IT.PDC equ $12 ;Pipe device class (like IT.DTP, IT.DVC) | |
| 90 org IT.PDC | |
| 91 rmb 1 ;Leave room for device class | |
| 92 IT.ESiz rmb 1 ;Size of each queue element | |
| 93 IT.ECnt rmb 2 ;Max. elements in queue (initial position) | |
| 94 | |
| 95 * End of pipedefs | |
| 96 | |
| 516 | 97 ENDC |
| 98 |