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196ba1fc PH |
1 | /* nova_pt.c: NOVA paper tape read/punch simulator\r |
2 | \r | |
3 | Copyright (c) 1993-2008, Robert M. Supnik\r | |
4 | \r | |
5 | Permission is hereby granted, free of charge, to any person obtaining a\r | |
6 | copy of this software and associated documentation files (the "Software"),\r | |
7 | to deal in the Software without restriction, including without limitation\r | |
8 | the rights to use, copy, modify, merge, publish, distribute, sublicense,\r | |
9 | and/or sell copies of the Software, and to permit persons to whom the\r | |
10 | Software is furnished to do so, subject to the following conditions:\r | |
11 | \r | |
12 | The above copyright notice and this permission notice shall be included in\r | |
13 | all copies or substantial portions of the Software.\r | |
14 | \r | |
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r | |
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r | |
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL\r | |
18 | ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r | |
19 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r | |
20 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r | |
21 | \r | |
22 | Except as contained in this notice, the name of Robert M Supnik shall not be\r | |
23 | used in advertising or otherwise to promote the sale, use or other dealings\r | |
24 | in this Software without prior written authorization from Robert M Supnik.\r | |
25 | \r | |
26 | ptr paper tape reader\r | |
27 | ptp paper tape punch\r | |
28 | \r | |
29 | 04-Jul-07 BKR added PTR and PTP device DISABLE capability,\r | |
30 | added 7B/8B support PTR and PTP (default is 8B),\r | |
31 | DEV_SET/CLR macros now used,\r | |
32 | PTR and PTP can now be DISABLED\r | |
33 | 25-Apr-03 RMS Revised for extended file support\r | |
34 | 03-Oct-02 RMS Added DIBs\r | |
35 | 30-May-02 RMS Widened POS to 32b\r | |
36 | 29-Nov-01 RMS Added read only unit support\r | |
37 | \r | |
38 | \r | |
39 | Notes:\r | |
40 | - data masked to 7- or 8- bits, based on 7B or 8B, default is 8-bits\r | |
41 | - register TIME is the delay between character read or write operations\r | |
42 | - register POS show the number of characters read from or sent to the PTR or PTP\r | |
43 | - register STOP_IOE determines return value issued if output to unattached PTR or PTP is attempted\r | |
44 | */\r | |
45 | \r | |
46 | #include "nova_defs.h"\r | |
47 | \r | |
48 | extern int32 int_req, dev_busy, dev_done, dev_disable ;\r | |
49 | extern int32 SR ;\r | |
50 | \r | |
51 | extern t_stat cpu_boot(int32 unitno, DEVICE * dptr ) ;\r | |
52 | \r | |
53 | \r | |
54 | int32 ptr_stopioe = 0, ptp_stopioe = 0; /* stop on error */\r | |
55 | \r | |
56 | int32 ptr (int32 pulse, int32 code, int32 AC);\r | |
57 | int32 ptp (int32 pulse, int32 code, int32 AC);\r | |
58 | t_stat ptr_svc (UNIT *uptr);\r | |
59 | t_stat ptp_svc (UNIT *uptr);\r | |
60 | t_stat ptr_reset (DEVICE *dptr);\r | |
61 | t_stat ptp_reset (DEVICE *dptr);\r | |
62 | t_stat ptr_boot (int32 unitno, DEVICE *dptr);\r | |
63 | \r | |
64 | \r | |
65 | /* 7 or 8 bit data mask support for either device */\r | |
66 | \r | |
67 | #define UNIT_V_8B (UNIT_V_UF + 0) /* 8b output */\r | |
68 | #define UNIT_8B (1 << UNIT_V_8B)\r | |
69 | \r | |
70 | \r | |
71 | /* PTR data structures\r | |
72 | \r | |
73 | ptr_dev PTR device descriptor\r | |
74 | ptr_unit PTR unit descriptor\r | |
75 | ptr_reg PTR register list\r | |
76 | */\r | |
77 | \r | |
78 | DIB ptr_dib = { DEV_PTR, INT_PTR, PI_PTR, &ptr };\r | |
79 | \r | |
80 | UNIT ptr_unit = { /* 2007-May-30, bkr */\r | |
81 | UDATA (&ptr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE+UNIT_8B, 0),\r | |
82 | SERIAL_IN_WAIT\r | |
83 | };\r | |
84 | \r | |
85 | REG ptr_reg[] = {\r | |
86 | { ORDATA (BUF, ptr_unit.buf, 8) },\r | |
87 | { FLDATA (BUSY, dev_busy, INT_V_PTR) },\r | |
88 | { FLDATA (DONE, dev_done, INT_V_PTR) },\r | |
89 | { FLDATA (DISABLE, dev_disable, INT_V_PTR) },\r | |
90 | { FLDATA (INT, int_req, INT_V_PTR) },\r | |
91 | { DRDATA (POS, ptr_unit.pos, T_ADDR_W), PV_LEFT },\r | |
92 | { DRDATA (TIME, ptr_unit.wait, 24), PV_LEFT },\r | |
93 | { FLDATA (STOP_IOE, ptr_stopioe, 0) },\r | |
94 | { NULL }\r | |
95 | };\r | |
96 | \r | |
97 | MTAB ptr_mod[] = /* 2007-May-30, bkr */\r | |
98 | {\r | |
99 | { UNIT_8B, 0, "7b", "7B", NULL },\r | |
100 | { UNIT_8B, UNIT_8B, "8b", "8B", NULL },\r | |
101 | { 0, 0, NULL, NULL, NULL }\r | |
102 | } ;\r | |
103 | \r | |
104 | DEVICE ptr_dev = {\r | |
105 | "PTR", &ptr_unit, ptr_reg, ptr_mod /* 2007-May-30, bkr */,\r | |
106 | 1, 10, 31, 1, 8, 8,\r | |
107 | NULL, NULL, &ptr_reset,\r | |
108 | &ptr_boot, NULL, NULL,\r | |
109 | &ptr_dib, DEV_DISABLE /* 2007-May-30, bkr */\r | |
110 | };\r | |
111 | \r | |
112 | /* PTP data structures\r | |
113 | \r | |
114 | ptp_dev PTP device descriptor\r | |
115 | ptp_unit PTP unit descriptor\r | |
116 | ptp_reg PTP register list\r | |
117 | */\r | |
118 | \r | |
119 | DIB ptp_dib = { DEV_PTP, INT_PTP, PI_PTP, &ptp };\r | |
120 | \r | |
121 | UNIT ptp_unit =\r | |
122 | {\r | |
123 | UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_8B, 0), SERIAL_OUT_WAIT\r | |
124 | };\r | |
125 | \r | |
126 | REG ptp_reg[] = {\r | |
127 | { ORDATA (BUF, ptp_unit.buf, 8) },\r | |
128 | { FLDATA (BUSY, dev_busy, INT_V_PTP) },\r | |
129 | { FLDATA (DONE, dev_done, INT_V_PTP) },\r | |
130 | { FLDATA (DISABLE, dev_disable, INT_V_PTP) },\r | |
131 | { FLDATA (INT, int_req, INT_V_PTP) },\r | |
132 | { DRDATA (POS, ptp_unit.pos, T_ADDR_W), PV_LEFT },\r | |
133 | { DRDATA (TIME, ptp_unit.wait, 24), PV_LEFT },\r | |
134 | { FLDATA (STOP_IOE, ptp_stopioe, 0) },\r | |
135 | { NULL }\r | |
136 | };\r | |
137 | \r | |
138 | MTAB ptp_mod[] =\r | |
139 | {\r | |
140 | { UNIT_8B, 0, "7b", "7B", NULL },\r | |
141 | { UNIT_8B, UNIT_8B, "8b", "8B", NULL },\r | |
142 | { 0, 0, NULL, NULL, NULL }\r | |
143 | } ;\r | |
144 | \r | |
145 | DEVICE ptp_dev =\r | |
146 | {\r | |
147 | "PTP", &ptp_unit, ptp_reg, ptp_mod /* 2007-May-30, bkr */,\r | |
148 | 1, 10, 31, 1, 8, 8,\r | |
149 | NULL, NULL, &ptp_reset,\r | |
150 | NULL, NULL, NULL,\r | |
151 | &ptp_dib, DEV_DISABLE /* 2007-May-30, bkr */\r | |
152 | };\r | |
153 | \r | |
154 | \r | |
155 | /* Paper tape reader: IOT routine */\r | |
156 | \r | |
157 | int32 ptr (int32 pulse, int32 code, int32 AC)\r | |
158 | {\r | |
159 | int32 iodata;\r | |
160 | \r | |
161 | iodata = (code == ioDIA)?\r | |
162 | ptr_unit.buf & 0377\r | |
163 | : 0;\r | |
164 | switch (pulse)\r | |
165 | { /* decode IR<8:9> */\r | |
166 | case iopS: /* start */\r | |
167 | DEV_SET_BUSY( INT_PTR ) ;\r | |
168 | DEV_CLR_DONE( INT_PTR ) ;\r | |
169 | DEV_UPDATE_INTR ;\r | |
170 | sim_activate (&ptr_unit, ptr_unit.wait); /* activate unit */\r | |
171 | break;\r | |
172 | \r | |
173 | case iopC: /* clear */\r | |
174 | DEV_CLR_BUSY( INT_PTR ) ;\r | |
175 | DEV_CLR_DONE( INT_PTR ) ;\r | |
176 | DEV_UPDATE_INTR ;\r | |
177 | sim_cancel (&ptr_unit); /* deactivate unit */\r | |
178 | break;\r | |
179 | } /* end switch */\r | |
180 | \r | |
181 | return iodata;\r | |
182 | }\r | |
183 | \r | |
184 | \r | |
185 | /* Unit service */\r | |
186 | \r | |
187 | t_stat ptr_svc (UNIT *uptr)\r | |
188 | {\r | |
189 | int32 temp;\r | |
190 | \r | |
191 | if ((ptr_unit.flags & UNIT_ATT) == 0) /* attached? */\r | |
192 | return IORETURN (ptr_stopioe, SCPE_UNATT);\r | |
193 | if ((temp = getc (ptr_unit.fileref)) == EOF) { /* end of file? */\r | |
194 | if (feof (ptr_unit.fileref)) {\r | |
195 | if (ptr_stopioe) printf ("PTR end of file\n");\r | |
196 | else return SCPE_OK;\r | |
197 | }\r | |
198 | else perror ("PTR I/O error");\r | |
199 | clearerr (ptr_unit.fileref);\r | |
200 | return SCPE_IOERR;\r | |
201 | }\r | |
202 | \r | |
203 | DEV_CLR_BUSY( INT_PTR ) ;\r | |
204 | DEV_SET_DONE( INT_PTR ) ;\r | |
205 | DEV_UPDATE_INTR ;\r | |
206 | ptr_unit.buf = temp & ((ptr_unit.flags & UNIT_8B)? 0377: 0177);\r | |
207 | ++(ptr_unit.pos);\r | |
208 | return SCPE_OK;\r | |
209 | }\r | |
210 | \r | |
211 | \r | |
212 | /* Reset routine */\r | |
213 | \r | |
214 | t_stat ptr_reset (DEVICE *dptr)\r | |
215 | {\r | |
216 | ptr_unit.buf = 0; /* <not DG compatible> */\r | |
217 | DEV_CLR_BUSY( INT_PTR ) ;\r | |
218 | DEV_CLR_DONE( INT_PTR ) ;\r | |
219 | DEV_UPDATE_INTR ;\r | |
220 | sim_cancel (&ptr_unit); /* deactivate unit */\r | |
221 | return SCPE_OK;\r | |
222 | }\r | |
223 | \r | |
224 | \r | |
225 | /* Boot routine */\r | |
226 | \r | |
227 | t_stat ptr_boot (int32 unitno, DEVICE *dptr)\r | |
228 | {\r | |
229 | ptr_reset( dptr ) ;\r | |
230 | /* set position to 0? */\r | |
231 | cpu_boot( unitno, dptr ) ;\r | |
232 | SR = /* low-speed: no high-order bit set */ DEV_PTR ;\r | |
233 | return ( SCPE_OK );\r | |
234 | } /* end of 'ptr_boot' */\r | |
235 | \r | |
236 | \r | |
237 | \r | |
238 | \r | |
239 | \r | |
240 | /* Paper tape punch: IOT routine */\r | |
241 | \r | |
242 | int32 ptp (int32 pulse, int32 code, int32 AC)\r | |
243 | {\r | |
244 | if (code == ioDOA)\r | |
245 | ptp_unit.buf = AC & 0377;\r | |
246 | \r | |
247 | switch (pulse)\r | |
248 | { /* decode IR<8:9> */\r | |
249 | case iopS: /* start */\r | |
250 | DEV_SET_BUSY( INT_PTP ) ;\r | |
251 | DEV_CLR_DONE( INT_PTP ) ;\r | |
252 | DEV_UPDATE_INTR ;\r | |
253 | sim_activate (&ptp_unit, ptp_unit.wait); /* activate unit */\r | |
254 | break;\r | |
255 | \r | |
256 | case iopC: /* clear */\r | |
257 | DEV_CLR_BUSY( INT_PTP ) ;\r | |
258 | DEV_CLR_DONE( INT_PTP ) ;\r | |
259 | DEV_UPDATE_INTR ;\r | |
260 | sim_cancel (&ptp_unit); /* deactivate unit */\r | |
261 | break;\r | |
262 | } /* end switch */\r | |
263 | \r | |
264 | return 0;\r | |
265 | }\r | |
266 | \r | |
267 | \r | |
268 | /* Unit service */\r | |
269 | \r | |
270 | t_stat ptp_svc (UNIT *uptr)\r | |
271 | {\r | |
272 | DEV_CLR_BUSY( INT_PTP ) ;\r | |
273 | DEV_SET_DONE( INT_PTP ) ;\r | |
274 | DEV_UPDATE_INTR ;\r | |
275 | if ((ptp_unit.flags & UNIT_ATT) == 0) /* attached? */\r | |
276 | return IORETURN (ptp_stopioe, SCPE_UNATT);\r | |
277 | if (putc ((ptp_unit.buf & ((ptp_unit.flags & UNIT_8B)? 0377: 0177)), ptp_unit.fileref) == EOF) {\r | |
278 | perror ("PTP I/O error");\r | |
279 | clearerr (ptp_unit.fileref);\r | |
280 | return SCPE_IOERR;\r | |
281 | }\r | |
282 | ++(ptp_unit.pos);\r | |
283 | return SCPE_OK;\r | |
284 | }\r | |
285 | \r | |
286 | \r | |
287 | /* Reset routine */\r | |
288 | \r | |
289 | t_stat ptp_reset (DEVICE *dptr)\r | |
290 | {\r | |
291 | ptp_unit.buf = 0; /* <not DG compatible> */\r | |
292 | DEV_CLR_BUSY( INT_PTP ) ;\r | |
293 | DEV_CLR_DONE( INT_PTP ) ;\r | |
294 | DEV_UPDATE_INTR ;\r | |
295 | sim_cancel (&ptp_unit); /* deactivate unit */\r | |
296 | return SCPE_OK;\r | |
297 | }\r |