1 ; $NetBSD: oosiop.ss,v 1.2 2003/04/06 09:48:42 tsutsui Exp $ 2 3 ; 4 ; Copyright (c) 2001 Shuichiro URATA. All rights reserved. 5 ; 6 ; Redistribution and use in source and binary forms, with or without 7 ; modification, are permitted provided that the following conditions 8 ; are met: 9 ; 1. Redistributions of source code must retain the above copyright 10 ; notice, this list of conditions and the following disclaimer. 11 ; 2. Redistributions in binary form must reproduce the above copyright 12 ; notice, this list of conditions and the following disclaimer in the 13 ; documentation and/or other materials provided with the distribution. 14 ; 3. The name of the author may not be used to endorse or promote products 15 ; derived from this software without specific prior written permission. 16 ; 17 ; THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 ; IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 ; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 ; IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 ; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 ; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 ; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 ; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 ; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 ; THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 ; 28 29 ; NCR 53c700 script 30 ; 31 32 ARCH 700 33 34 ; interrupt codes 35 ABSOLUTE int_done = 0xbeef0000 36 ABSOLUTE int_msgin = 0xbeef0001 37 ABSOLUTE int_extmsg = 0xbeef0002 38 ABSOLUTE int_resel = 0xbeef0003 39 ABSOLUTE int_res_id = 0xbeef0004 40 ABSOLUTE int_resfail = 0xbeef0005 41 ABSOLUTE int_disc = 0xbeef0006 42 ABSOLUTE int_err = 0xdeadbeef 43 44 ; patch entries 45 ENTRY p_resel_msgin_move 46 ENTRY p_select 47 ENTRY p_datain_jump 48 ENTRY p_dataout_jump 49 ENTRY p_msgin_move 50 ENTRY p_msgout_move 51 ENTRY p_cmdout_move 52 ENTRY p_status_move 53 ENTRY p_extmsglen_move 54 ENTRY p_extmsgin_move 55 56 57 PROC oosiop_script: 58 59 ENTRY wait_reselect 60 wait_reselect: 61 WAIT RESELECT REL(reselect_fail) 62 INT int_resel 63 reselect_fail: 64 INT int_resfail 65 66 ENTRY wait_resel_identify 67 wait_resel_identify: 68 INT int_err, WHEN NOT MSG_IN 69 p_resel_msgin_move: 70 MOVE 0, 0, WHEN MSG_IN 71 INT int_res_id 72 73 ENTRY start_select 74 start_select: 75 p_select: 76 SELECT ATN 0, REL(wait_reselect) 77 78 ENTRY phasedispatch 79 phasedispatch: 80 JUMP REL(msgin), WHEN MSG_IN 81 JUMP REL(msgout), WHEN MSG_OUT 82 JUMP REL(status), WHEN STATUS 83 JUMP REL(cmdout), WHEN CMD 84 p_datain_jump: 85 JUMP 0, WHEN DATA_IN 86 p_dataout_jump: 87 JUMP 0, WHEN DATA_OUT 88 INT int_err 89 90 msgin: 91 CLEAR ATN 92 p_msgin_move: 93 MOVE 0, 0, WHEN MSG_IN 94 JUMP REL(complete), IF 0x00 95 JUMP REL(extmsgsetup), IF 0x01 96 JUMP REL(disconnect), IF 0x04 97 INT int_msgin 98 99 ENTRY ack_msgin 100 ack_msgin: 101 CLEAR ACK 102 JUMP REL(phasedispatch) 103 104 ENTRY sendmsg 105 sendmsg: 106 SET ATN 107 CLEAR ACK 108 msgout: 109 p_msgout_move: 110 MOVE 0, 0, WHEN MSG_OUT 111 CLEAR ATN 112 JUMP REL(phasedispatch) 113 114 cmdout: 115 CLEAR ATN 116 p_cmdout_move: 117 MOVE 0, 0, WHEN CMD 118 JUMP REL(phasedispatch) 119 120 status: 121 p_status_move: 122 MOVE 0, 0, WHEN STATUS 123 JUMP REL(phasedispatch) 124 125 disconnect: 126 CLEAR ACK 127 WAIT DISCONNECT 128 INT int_disc 129 130 complete: 131 CLEAR ACK 132 WAIT DISCONNECT 133 INT int_done 134 135 ; receive extended message length 136 extmsgsetup: 137 CLEAR ACK 138 INT int_err, IF NOT MSG_IN 139 p_extmsglen_move: 140 MOVE 0, 0, WHEN MSG_IN 141 INT int_extmsg 142 143 ; receive extended message 144 ENTRY rcv_extmsg 145 rcv_extmsg: 146 CLEAR ACK 147 INT int_err, IF NOT MSG_IN 148 p_extmsgin_move: 149 MOVE 0, 0, WHEN MSG_IN 150 INT int_msgin 151
Indexes created Sat Sep 20 22:09:52 GMT 2025