Annotation of sys/arch/mvme68k/dev/ssh_script.ss, Revision 1.1.1.1
1.1 nbrk 1: ; $OpenBSD: ssh_script.ss,v 1.1 2001/02/18 17:41:09 deraadt 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)
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