1 /* nova_pt.c: NOVA paper tape read/punch simulator
2
3 Copyright (c) 1993-2008, Robert M. Supnik
4
5 Permission is hereby granted, free of charge, to any person obtaining a
6 copy of this software and associated documentation files (the "Software"),
7 to deal in the Software without restriction, including without limitation
8 the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 and/or sell copies of the Software, and to permit persons to whom the
10 Software is furnished to do so, subject to the following conditions:
11
12 The above copyright notice and this permission notice shall be included in
13 all copies or substantial portions of the Software.
14
15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
19 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21
22 Except as contained in this notice, the name of Robert M Supnik shall not be
23 used in advertising or otherwise to promote the sale, use or other dealings
24 in this Software without prior written authorization from Robert M Supnik.
25
26 ptr paper tape reader
27 ptp paper tape punch
28
29 04-Jul-07 BKR added PTR and PTP device DISABLE capability,
30 added 7B/8B support PTR and PTP (default is 8B),
31 DEV_SET/CLR macros now used,
32 PTR and PTP can now be DISABLED
33 25-Apr-03 RMS Revised for extended file support
34 03-Oct-02 RMS Added DIBs
35 30-May-02 RMS Widened POS to 32b
36 29-Nov-01 RMS Added read only unit support
37
38
39 Notes:
40 - data masked to 7- or 8- bits, based on 7B or 8B, default is 8-bits
41 - register TIME is the delay between character read or write operations
42 - register POS show the number of characters read from or sent to the PTR or PTP
43 - register STOP_IOE determines return value issued if output to unattached PTR or PTP is attempted
44 */
45
46 #include "nova_defs.h"
47
48 extern int32 int_req, dev_busy, dev_done, dev_disable ;
49 extern int32 SR ;
50
51 extern t_stat cpu_boot(int32 unitno, DEVICE * dptr ) ;
52
53
54 int32 ptr_stopioe = 0, ptp_stopioe = 0; /* stop on error */
55
56 int32 ptr (int32 pulse, int32 code, int32 AC);
57 int32 ptp (int32 pulse, int32 code, int32 AC);
58 t_stat ptr_svc (UNIT *uptr);
59 t_stat ptp_svc (UNIT *uptr);
60 t_stat ptr_reset (DEVICE *dptr);
61 t_stat ptp_reset (DEVICE *dptr);
62 t_stat ptr_boot (int32 unitno, DEVICE *dptr);
63
64
65 /* 7 or 8 bit data mask support for either device */
66
67 #define UNIT_V_8B (UNIT_V_UF + 0) /* 8b output */
68 #define UNIT_8B (1 << UNIT_V_8B)
69
70
71 /* PTR data structures
72
73 ptr_dev PTR device descriptor
74 ptr_unit PTR unit descriptor
75 ptr_reg PTR register list
76 */
77
78 DIB ptr_dib = { DEV_PTR, INT_PTR, PI_PTR, &ptr };
79
80 UNIT ptr_unit = { /* 2007-May-30, bkr */
81 UDATA (&ptr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE+UNIT_8B, 0),
82 SERIAL_IN_WAIT
83 };
84
85 REG ptr_reg[] = {
86 { ORDATA (BUF, ptr_unit.buf, 8) },
87 { FLDATA (BUSY, dev_busy, INT_V_PTR) },
88 { FLDATA (DONE, dev_done, INT_V_PTR) },
89 { FLDATA (DISABLE, dev_disable, INT_V_PTR) },
90 { FLDATA (INT, int_req, INT_V_PTR) },
91 { DRDATA (POS, ptr_unit.pos, T_ADDR_W), PV_LEFT },
92 { DRDATA (TIME, ptr_unit.wait, 24), PV_LEFT },
93 { FLDATA (STOP_IOE, ptr_stopioe, 0) },
94 { NULL }
95 };
96
97 MTAB ptr_mod[] = /* 2007-May-30, bkr */
98 {
99 { UNIT_8B, 0, "7b", "7B", NULL },
100 { UNIT_8B, UNIT_8B, "8b", "8B", NULL },
101 { 0, 0, NULL, NULL, NULL }
102 } ;
103
104 DEVICE ptr_dev = {
105 "PTR", &ptr_unit, ptr_reg, ptr_mod /* 2007-May-30, bkr */,
106 1, 10, 31, 1, 8, 8,
107 NULL, NULL, &ptr_reset,
108 &ptr_boot, NULL, NULL,
109 &ptr_dib, DEV_DISABLE /* 2007-May-30, bkr */
110 };
111
112 /* PTP data structures
113
114 ptp_dev PTP device descriptor
115 ptp_unit PTP unit descriptor
116 ptp_reg PTP register list
117 */
118
119 DIB ptp_dib = { DEV_PTP, INT_PTP, PI_PTP, &ptp };
120
121 UNIT ptp_unit =
122 {
123 UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_8B, 0), SERIAL_OUT_WAIT
124 };
125
126 REG ptp_reg[] = {
127 { ORDATA (BUF, ptp_unit.buf, 8) },
128 { FLDATA (BUSY, dev_busy, INT_V_PTP) },
129 { FLDATA (DONE, dev_done, INT_V_PTP) },
130 { FLDATA (DISABLE, dev_disable, INT_V_PTP) },
131 { FLDATA (INT, int_req, INT_V_PTP) },
132 { DRDATA (POS, ptp_unit.pos, T_ADDR_W), PV_LEFT },
133 { DRDATA (TIME, ptp_unit.wait, 24), PV_LEFT },
134 { FLDATA (STOP_IOE, ptp_stopioe, 0) },
135 { NULL }
136 };
137
138 MTAB ptp_mod[] =
139 {
140 { UNIT_8B, 0, "7b", "7B", NULL },
141 { UNIT_8B, UNIT_8B, "8b", "8B", NULL },
142 { 0, 0, NULL, NULL, NULL }
143 } ;
144
145 DEVICE ptp_dev =
146 {
147 "PTP", &ptp_unit, ptp_reg, ptp_mod /* 2007-May-30, bkr */,
148 1, 10, 31, 1, 8, 8,
149 NULL, NULL, &ptp_reset,
150 NULL, NULL, NULL,
151 &ptp_dib, DEV_DISABLE /* 2007-May-30, bkr */
152 };
153
154
155 /* Paper tape reader: IOT routine */
156
ptr(int32 pulse,int32 code,int32 AC)157 int32 ptr (int32 pulse, int32 code, int32 AC)
158 {
159 int32 iodata;
160
161 iodata = (code == ioDIA)?
162 ptr_unit.buf & 0377
163 : 0;
164 switch (pulse)
165 { /* decode IR<8:9> */
166 case iopS: /* start */
167 DEV_SET_BUSY( INT_PTR ) ;
168 DEV_CLR_DONE( INT_PTR ) ;
169 DEV_UPDATE_INTR ;
170 sim_activate (&ptr_unit, ptr_unit.wait); /* activate unit */
171 break;
172
173 case iopC: /* clear */
174 DEV_CLR_BUSY( INT_PTR ) ;
175 DEV_CLR_DONE( INT_PTR ) ;
176 DEV_UPDATE_INTR ;
177 sim_cancel (&ptr_unit); /* deactivate unit */
178 break;
179 } /* end switch */
180
181 return iodata;
182 }
183
184
185 /* Unit service */
186
ptr_svc(UNIT * uptr)187 t_stat ptr_svc (UNIT *uptr)
188 {
189 int32 temp;
190
191 if ((ptr_unit.flags & UNIT_ATT) == 0) /* attached? */
192 return IORETURN (ptr_stopioe, SCPE_UNATT);
193 if ((temp = getc (ptr_unit.fileref)) == EOF) { /* end of file? */
194 if (feof (ptr_unit.fileref)) {
195 if (ptr_stopioe)
196 printf ("PTR end of file\n");
197 else return SCPE_OK;
198 }
199 else perror ("PTR I/O error");
200 clearerr (ptr_unit.fileref);
201 return SCPE_IOERR;
202 }
203
204 DEV_CLR_BUSY( INT_PTR ) ;
205 DEV_SET_DONE( INT_PTR ) ;
206 DEV_UPDATE_INTR ;
207 ptr_unit.buf = temp & ((ptr_unit.flags & UNIT_8B)? 0377: 0177);
208 ++(ptr_unit.pos);
209 return SCPE_OK;
210 }
211
212
213 /* Reset routine */
214
ptr_reset(DEVICE * dptr)215 t_stat ptr_reset (DEVICE *dptr)
216 {
217 ptr_unit.buf = 0; /* <not DG compatible> */
218 DEV_CLR_BUSY( INT_PTR ) ;
219 DEV_CLR_DONE( INT_PTR ) ;
220 DEV_UPDATE_INTR ;
221 sim_cancel (&ptr_unit); /* deactivate unit */
222 return SCPE_OK;
223 }
224
225
226 /* Boot routine */
227
ptr_boot(int32 unitno,DEVICE * dptr)228 t_stat ptr_boot (int32 unitno, DEVICE *dptr)
229 {
230 ptr_reset( dptr ) ;
231 /* set position to 0? */
232 cpu_boot( unitno, dptr ) ;
233 SR = /* low-speed: no high-order bit set */ DEV_PTR ;
234 return ( SCPE_OK );
235 } /* end of 'ptr_boot' */
236
237
238
239
240
241 /* Paper tape punch: IOT routine */
242
ptp(int32 pulse,int32 code,int32 AC)243 int32 ptp (int32 pulse, int32 code, int32 AC)
244 {
245 if (code == ioDOA)
246 ptp_unit.buf = AC & 0377;
247
248 switch (pulse)
249 { /* decode IR<8:9> */
250 case iopS: /* start */
251 DEV_SET_BUSY( INT_PTP ) ;
252 DEV_CLR_DONE( INT_PTP ) ;
253 DEV_UPDATE_INTR ;
254 sim_activate (&ptp_unit, ptp_unit.wait); /* activate unit */
255 break;
256
257 case iopC: /* clear */
258 DEV_CLR_BUSY( INT_PTP ) ;
259 DEV_CLR_DONE( INT_PTP ) ;
260 DEV_UPDATE_INTR ;
261 sim_cancel (&ptp_unit); /* deactivate unit */
262 break;
263 } /* end switch */
264
265 return 0;
266 }
267
268
269 /* Unit service */
270
ptp_svc(UNIT * uptr)271 t_stat ptp_svc (UNIT *uptr)
272 {
273 DEV_CLR_BUSY( INT_PTP ) ;
274 DEV_SET_DONE( INT_PTP ) ;
275 DEV_UPDATE_INTR ;
276 if ((ptp_unit.flags & UNIT_ATT) == 0) /* attached? */
277 return IORETURN (ptp_stopioe, SCPE_UNATT);
278 if (putc ((ptp_unit.buf & ((ptp_unit.flags & UNIT_8B)? 0377: 0177)), ptp_unit.fileref) == EOF) {
279 perror ("PTP I/O error");
280 clearerr (ptp_unit.fileref);
281 return SCPE_IOERR;
282 }
283 ++(ptp_unit.pos);
284 return SCPE_OK;
285 }
286
287
288 /* Reset routine */
289
ptp_reset(DEVICE * dptr)290 t_stat ptp_reset (DEVICE *dptr)
291 {
292 ptp_unit.buf = 0; /* <not DG compatible> */
293 DEV_CLR_BUSY( INT_PTP ) ;
294 DEV_CLR_DONE( INT_PTP ) ;
295 DEV_UPDATE_INTR ;
296 sim_cancel (&ptp_unit); /* deactivate unit */
297 return SCPE_OK;
298 }
299