siop_script.ss revision 1.3
1 ; $NetBSD: siop_script.ss,v 1.3 1995/08/18 15:28:11 chopps Exp $ 2 3 ; 4 ; Copyright (c) 1995 Michael L. Hitch 5 ; All rights reserved. 6 ; 7 ; Redistribution and use in source and binary forms, with or without 8 ; modification, are permitted provided that the following conditions 9 ; are met: 10 ; 1. Redistributions of source code must retain the above copyright 11 ; notice, this list of conditions and the following disclaimer. 12 ; 2. Redistributions in binary form must reproduce the above copyright 13 ; notice, this list of conditions and the following disclaimer in the 14 ; documentation and/or other materials provided with the distribution. 15 ; 3. All advertising materials mentioning features or use of this software 16 ; must display the following acknowledgement: 17 ; This product includes software developed by Michael L. Hitch. 18 ; 4. The name of the author may not be used to endorse or promote products 19 ; derived from this software without specific prior written permission 20 ; 21 ; THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 ; IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 ; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 ; IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 ; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 ; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 ; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 ; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 ; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 ; THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 ; 32 33 ; NCR 53c710 script 34 ; 35 ABSOLUTE ds_Device = 0 36 ABSOLUTE ds_MsgOut = ds_Device + 4 37 ABSOLUTE ds_Cmd = ds_MsgOut + 8 38 ABSOLUTE ds_Status = ds_Cmd + 8 39 ABSOLUTE ds_Msg = ds_Status + 8 40 ABSOLUTE ds_MsgIn = ds_Msg + 8 41 ABSOLUTE ds_ExtMsg = ds_MsgIn + 8 42 ABSOLUTE ds_SyncMsg = ds_ExtMsg + 8 43 ABSOLUTE ds_Data1 = ds_SyncMsg + 8 44 ABSOLUTE ds_Data2 = ds_Data1 + 8 45 ABSOLUTE ds_Data3 = ds_Data2 + 8 46 ABSOLUTE ds_Data4 = ds_Data3 + 8 47 ABSOLUTE ds_Data5 = ds_Data4 + 8 48 ABSOLUTE ds_Data6 = ds_Data5 + 8 49 ABSOLUTE ds_Data7 = ds_Data6 + 8 50 ABSOLUTE ds_Data8 = ds_Data7 + 8 51 ABSOLUTE ds_Data9 = ds_Data8 + 8 52 53 ABSOLUTE ok = 0xff00 54 ABSOLUTE err1 = 0xff01 55 ABSOLUTE err2 = 0xff02 56 ABSOLUTE err3 = 0xff03 57 ABSOLUTE err4 = 0xff04 58 ABSOLUTE err5 = 0xff05 59 ABSOLUTE err6 = 0xff06 60 ABSOLUTE err7 = 0xff07 61 ABSOLUTE err8 = 0xff08 62 ABSOLUTE err9 = 0xff09 63 ABSOLUTE err10 = 0xff0a 64 65 ENTRY scripts 66 ENTRY switch 67 ENTRY wait_reselect 68 ENTRY dataout 69 ENTRY datain 70 71 PROC scripts: 72 73 scripts: 74 75 SELECT ATN FROM ds_Device, REL(reselect) 76 ; 77 switch: 78 JUMP REL(msgin), WHEN MSG_IN 79 JUMP REL(msgout), IF MSG_OUT 80 JUMP REL(command_phase), IF CMD 81 JUMP REL(dataout), IF DATA_OUT 82 JUMP REL(datain), IF DATA_IN 83 JUMP REL(end), IF STATUS 84 85 INT err5 ; Unrecognized phase 86 87 msgin: 88 MOVE FROM ds_MsgIn, WHEN MSG_IN 89 JUMP REL(ext_msg), IF 0x01 ; extended message 90 JUMP REL(disc), IF 0x04 ; disconnect message 91 JUMP REL(msg_sdp), IF 0x02 ; save data pointers 92 JUMP REL(msg_rej), IF 0x07 ; message reject 93 JUMP REL(msg_rdp), IF 0x03 ; restore data pointers 94 INT err6 ; unrecognized message 95 96 msg_rdp: 97 msg_rej: 98 CLEAR ACK 99 CLEAR ATN 100 JUMP REL(switch) 101 102 ext_msg: 103 CLEAR ACK 104 MOVE FROM ds_ExtMsg, WHEN MSG_IN 105 JUMP REL(sync_msg), IF 0x03 106 int err7 ; extended message not SDTR 107 108 sync_msg: 109 CLEAR ACK 110 MOVE FROM ds_SyncMsg, WHEN MSG_IN 111 CLEAR ACK 112 JUMP REL(switch) 113 114 disc: 115 CLEAR ACK 116 WAIT DISCONNECT 117 118 int err2 ; signal disconnect w/o save DP 119 120 msg_sdp: 121 CLEAR ACK ; acknowledge message 122 JUMP REL(switch), WHEN NOT MSG_IN 123 MOVE FROM ds_ExtMsg, WHEN MSG_IN 124 INT err8, IF NOT 0x04 ; interrupt if not disconnect 125 CLEAR ACK 126 WAIT DISCONNECT 127 128 INT err1 ; signal disconnect 129 130 reselect: 131 wait_reselect: 132 WAIT RESELECT REL(select_adr) 133 MOVE LCRC to SFBR ; Save reselect ID 134 MOVE SFBR to SCRATCH0 135 136 INT err9, WHEN NOT MSG_IN ; didn't get IDENTIFY 137 MOVE FROM ds_Msg, WHEN MSG_IN 138 INT err3 ; let host know about reconnect 139 CLEAR ACK ; acknowlege the message 140 JUMP REL(switch) 141 142 143 select_adr: 144 MOVE SCNTL1 & 0x10 to SFBR ; get connected status 145 INT err4, IF 0x00 ; tell host if not connected 146 MOVE CTEST2 & 0x40 to SFBR ; clear Sig_P 147 JUMP REL(wait_reselect) ; and try reselect again 148 149 msgout: 150 MOVE FROM ds_MsgOut, WHEN MSG_OUT 151 JUMP REL(switch) 152 153 command_phase: 154 CLEAR ATN 155 MOVE FROM ds_Cmd, WHEN CMD 156 JUMP REL(switch) 157 158 dataout: 159 MOVE FROM ds_Data1, WHEN DATA_OUT 160 CALL REL(switch), WHEN NOT DATA_OUT 161 MOVE FROM ds_Data2, WHEN DATA_OUT 162 CALL REL(switch), WHEN NOT DATA_OUT 163 MOVE FROM ds_Data3, WHEN DATA_OUT 164 CALL REL(switch), WHEN NOT DATA_OUT 165 MOVE FROM ds_Data4, WHEN DATA_OUT 166 CALL REL(switch), WHEN NOT DATA_OUT 167 MOVE FROM ds_Data5, WHEN DATA_OUT 168 CALL REL(switch), WHEN NOT DATA_OUT 169 MOVE FROM ds_Data6, WHEN DATA_OUT 170 CALL REL(switch), WHEN NOT DATA_OUT 171 MOVE FROM ds_Data7, WHEN DATA_OUT 172 CALL REL(switch), WHEN NOT DATA_OUT 173 MOVE FROM ds_Data8, WHEN DATA_OUT 174 CALL REL(switch), WHEN NOT DATA_OUT 175 MOVE FROM ds_Data9, WHEN DATA_OUT 176 CALL REL(switch) 177 178 datain: 179 MOVE FROM ds_Data1, WHEN DATA_IN 180 CALL REL(switch), WHEN NOT DATA_IN 181 MOVE FROM ds_Data2, WHEN DATA_IN 182 CALL REL(switch), WHEN NOT DATA_IN 183 MOVE FROM ds_Data3, WHEN DATA_IN 184 CALL REL(switch), WHEN NOT DATA_IN 185 MOVE FROM ds_Data4, WHEN DATA_IN 186 CALL REL(switch), WHEN NOT DATA_IN 187 MOVE FROM ds_Data5, WHEN DATA_IN 188 CALL REL(switch), WHEN NOT DATA_IN 189 MOVE FROM ds_Data6, WHEN DATA_IN 190 CALL REL(switch), WHEN NOT DATA_IN 191 MOVE FROM ds_Data7, WHEN DATA_IN 192 CALL REL(switch), WHEN NOT DATA_IN 193 MOVE FROM ds_Data8, WHEN DATA_IN 194 CALL REL(switch), WHEN NOT DATA_IN 195 MOVE FROM ds_Data9, WHEN DATA_IN 196 CALL REL(switch) 197 198 end: 199 MOVE FROM ds_Status, WHEN STATUS 200 int err10, WHEN NOT MSG_IN ; status not followed by msg 201 MOVE FROM ds_Msg, WHEN MSG_IN 202 CLEAR ACK 203 WAIT DISCONNECT 204 INT ok ; signal completion 205 JUMP REL(wait_reselect) 206
Indexes created Fri Oct 03 02:09:57 GMT 2025