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196ba1fc PH |
1 | /* sds_stddev.c: SDS 940 standard devices\r |
2 | \r | |
3 | Copyright (c) 2001-2005, 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 | tti keyboard\r | |
29 | tto teleprinter\r | |
30 | \r | |
31 | 29-Dec-03 RMS Added console backpressure support\r | |
32 | 25-Apr-03 RMS Revised for extended file support\r | |
33 | */\r | |
34 | \r | |
35 | #include "sds_defs.h"\r | |
36 | \r | |
37 | #define TT_CR 052 /* typewriter */\r | |
38 | #define TT_TB 072\r | |
39 | #define TT_BS 032\r | |
40 | \r | |
41 | extern uint32 xfr_req;\r | |
42 | extern int32 stop_invins, stop_invdev, stop_inviop;\r | |
43 | int32 ptr_sor = 0; /* start of rec */\r | |
44 | int32 ptr_stopioe = 1; /* stop on err */\r | |
45 | int32 ptp_ldr = 0; /* no leader */\r | |
46 | int32 ptp_stopioe = 1;\r | |
47 | DSPT std_tplt[] = { { 1, 0 }, { 0, 0 } }; /* template */\r | |
48 | \r | |
49 | DEVICE ptr_dev, ptp_dev;\r | |
50 | t_stat ptr (uint32 fnc, uint32 inst, uint32 *dat);\r | |
51 | t_stat ptr_svc (UNIT *uptr);\r | |
52 | t_stat ptr_reset (DEVICE *dptr);\r | |
53 | t_stat ptr_boot (int32 unitno, DEVICE *dptr);\r | |
54 | void ptr_set_err (void);\r | |
55 | t_stat ptp (uint32 fnc, uint32 inst, uint32 *dat);\r | |
56 | t_stat ptp_svc (UNIT *uptr);\r | |
57 | t_stat ptp_reset (DEVICE *dptr);\r | |
58 | t_stat ptp_out (int32 dat);\r | |
59 | void ptp_set_err (void);\r | |
60 | t_stat tti (uint32 fnc, uint32 inst, uint32 *dat);\r | |
61 | t_stat tti_svc (UNIT *uptr);\r | |
62 | t_stat tti_reset (DEVICE *dptr);\r | |
63 | t_stat tto (uint32 fnc, uint32 inst, uint32 *dat);\r | |
64 | t_stat tto_svc (UNIT *uptr);\r | |
65 | t_stat tto_reset (DEVICE *dptr);\r | |
66 | \r | |
67 | extern const char ascii_to_sds[128];\r | |
68 | extern const char sds_to_ascii[64];\r | |
69 | extern const char odd_par[64];\r | |
70 | \r | |
71 | /* PTR data structures\r | |
72 | \r | |
73 | ptr_dev PTR device descriptor\r | |
74 | ptr_unit PTR unit\r | |
75 | ptr_reg PTR register list\r | |
76 | */\r | |
77 | \r | |
78 | DIB ptr_dib = { CHAN_W, DEV_PTR, XFR_PTR, std_tplt, &ptr };\r | |
79 | \r | |
80 | UNIT ptr_unit = {\r | |
81 | UDATA (&ptr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0),\r | |
82 | SERIAL_IN_WAIT\r | |
83 | };\r | |
84 | \r | |
85 | REG ptr_reg[] = {\r | |
86 | { ORDATA (BUF, ptr_unit.buf, 7) },\r | |
87 | { FLDATA (XFR, xfr_req, XFR_V_PTR) },\r | |
88 | { FLDATA (SOR, ptr_sor, 0) },\r | |
89 | { DRDATA (POS, ptr_unit.pos, T_ADDR_W), PV_LEFT },\r | |
90 | { DRDATA (TIME, ptr_unit.wait, 24), REG_NZ + PV_LEFT },\r | |
91 | { FLDATA (STOP_IOE, ptr_stopioe, 0) },\r | |
92 | { NULL }\r | |
93 | };\r | |
94 | \r | |
95 | MTAB ptr_mod[] = {\r | |
96 | { MTAB_XTD|MTAB_VDV, 0, "CHANNEL", "CHANNEL",\r | |
97 | &set_chan, &show_chan, NULL },\r | |
98 | { 0 }\r | |
99 | };\r | |
100 | \r | |
101 | DEVICE ptr_dev = {\r | |
102 | "PTR", &ptr_unit, ptr_reg, ptr_mod,\r | |
103 | 1, 10, 31, 1, 8, 8,\r | |
104 | NULL, NULL, &ptr_reset,\r | |
105 | &ptr_boot, NULL, NULL,\r | |
106 | &ptr_dib, DEV_DISABLE\r | |
107 | };\r | |
108 | \r | |
109 | /* PTP data structures\r | |
110 | \r | |
111 | ptp_dev PTP device descriptor\r | |
112 | ptp_unit PTP unit\r | |
113 | ptp_reg PTP register list\r | |
114 | */\r | |
115 | \r | |
116 | DIB ptp_dib = { CHAN_W, DEV_PTP, XFR_PTP, std_tplt, &ptp };\r | |
117 | \r | |
118 | UNIT ptp_unit = {\r | |
119 | UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE, 0), SERIAL_OUT_WAIT\r | |
120 | };\r | |
121 | \r | |
122 | REG ptp_reg[] = {\r | |
123 | { ORDATA (BUF, ptp_unit.buf, 7) },\r | |
124 | { FLDATA (XFR, xfr_req, XFR_V_PTP) },\r | |
125 | { FLDATA (LDR, ptp_ldr, 0) },\r | |
126 | { DRDATA (POS, ptp_unit.pos, T_ADDR_W), PV_LEFT },\r | |
127 | { DRDATA (TIME, ptp_unit.wait, 24), REG_NZ + PV_LEFT },\r | |
128 | { FLDATA (STOP_IOE, ptp_stopioe, 0) },\r | |
129 | { NULL }\r | |
130 | };\r | |
131 | \r | |
132 | MTAB ptp_mod[] = {\r | |
133 | { MTAB_XTD|MTAB_VDV, 0, "CHANNEL", "CHANNEL",\r | |
134 | &set_chan, &show_chan, NULL },\r | |
135 | { 0 }\r | |
136 | };\r | |
137 | \r | |
138 | DEVICE ptp_dev = {\r | |
139 | "PTP", &ptp_unit, ptp_reg, ptp_mod,\r | |
140 | 1, 10, 31, 1, 8, 8,\r | |
141 | NULL, NULL, &ptp_reset,\r | |
142 | NULL, NULL, NULL,\r | |
143 | &ptp_dib, DEV_DISABLE\r | |
144 | };\r | |
145 | \r | |
146 | /* TTI data structures\r | |
147 | \r | |
148 | tti_dev TTI device descriptor\r | |
149 | tti_unit TTI unit\r | |
150 | tti_reg TTI register list\r | |
151 | */\r | |
152 | \r | |
153 | DIB tti_dib = { CHAN_W, DEV_TTI, XFR_TTI, std_tplt, &tti };\r | |
154 | \r | |
155 | UNIT tti_unit = { UDATA (&tti_svc, 0, 0), KBD_POLL_WAIT };\r | |
156 | \r | |
157 | REG tti_reg[] = {\r | |
158 | { ORDATA (BUF, tti_unit.buf, 6) },\r | |
159 | { FLDATA (XFR, xfr_req, XFR_V_TTI) },\r | |
160 | { DRDATA (POS, tti_unit.pos, T_ADDR_W), PV_LEFT },\r | |
161 | { DRDATA (TIME, tti_unit.wait, 24), REG_NZ + PV_LEFT },\r | |
162 | { NULL }\r | |
163 | };\r | |
164 | \r | |
165 | MTAB tti_mod[] = {\r | |
166 | { MTAB_XTD|MTAB_VDV, 0, "CHANNEL", "CHANNEL",\r | |
167 | &set_chan, &show_chan, &tti_dib },\r | |
168 | { 0 }\r | |
169 | };\r | |
170 | \r | |
171 | DEVICE tti_dev = {\r | |
172 | "TTI", &tti_unit, tti_reg, tti_mod,\r | |
173 | 1, 10, 31, 1, 8, 8,\r | |
174 | NULL, NULL, &tti_reset,\r | |
175 | NULL, NULL, NULL,\r | |
176 | &tti_dib, 0\r | |
177 | };\r | |
178 | \r | |
179 | /* TTO data structures\r | |
180 | \r | |
181 | tto_dev TTO device descriptor\r | |
182 | tto_unit TTO unit\r | |
183 | tto_reg TTO register list\r | |
184 | */\r | |
185 | \r | |
186 | DIB tto_dib = { CHAN_W, DEV_TTO, XFR_TTO, std_tplt, &tto };\r | |
187 | \r | |
188 | UNIT tto_unit = { UDATA (&tto_svc, 0, 0), SERIAL_OUT_WAIT };\r | |
189 | \r | |
190 | REG tto_reg[] = {\r | |
191 | { ORDATA (BUF, tto_unit.buf, 6) },\r | |
192 | { FLDATA (XFR, xfr_req, XFR_V_TTO) },\r | |
193 | { DRDATA (POS, tto_unit.pos, T_ADDR_W), PV_LEFT },\r | |
194 | { DRDATA (TIME, tto_unit.wait, 24), REG_NZ + PV_LEFT },\r | |
195 | { NULL }\r | |
196 | };\r | |
197 | \r | |
198 | MTAB tto_mod[] = {\r | |
199 | { MTAB_XTD|MTAB_VDV, 0, "CHANNEL", "CHANNEL",\r | |
200 | &set_chan, &show_chan, &tto_dib },\r | |
201 | { 0 }\r | |
202 | };\r | |
203 | \r | |
204 | DEVICE tto_dev = {\r | |
205 | "TTO", &tto_unit, tto_reg, tto_mod,\r | |
206 | 1, 10, 31, 1, 8, 8,\r | |
207 | NULL, NULL, &tto_reset,\r | |
208 | NULL, NULL, NULL,\r | |
209 | &tto_dib, 0\r | |
210 | };\r | |
211 | \r | |
212 | /* Paper tape reader\r | |
213 | \r | |
214 | conn - inst = EOM0, dat = NULL\r | |
215 | eom1 - inst = EOM1, dat = NULL\r | |
216 | sks - inst = SKS, dat = ptr to result\r | |
217 | disc - inst = device number, dat = NULL\r | |
218 | wreor - inst = device number, dat = NULL\r | |
219 | read - inst = device number, dat = ptr to data\r | |
220 | write - inst = device number, dat = ptr to result\r | |
221 | \r | |
222 | The paper tape reader is a streaming input device. Once started, it\r | |
223 | continues to read until disconnected. Leader before the current record\r | |
224 | is ignored; leader after the current record sets channel EndOfRecord.\r | |
225 | */\r | |
226 | \r | |
227 | t_stat ptr (uint32 fnc, uint32 inst, uint32 *dat)\r | |
228 | {\r | |
229 | int32 new_ch;\r | |
230 | \r | |
231 | switch (fnc) { /* case function */\r | |
232 | \r | |
233 | case IO_CONN: /* connect */\r | |
234 | new_ch = I_GETEOCH (inst); /* get new chan */\r | |
235 | if (new_ch != ptr_dib.chan) return SCPE_IERR; /* inv conn? err */\r | |
236 | ptr_sor = 1; /* start of rec */\r | |
237 | xfr_req = xfr_req & ~XFR_PTR; /* clr xfr flag */\r | |
238 | sim_activate (&ptr_unit, ptr_unit.wait); /* activate */\r | |
239 | break;\r | |
240 | \r | |
241 | case IO_DISC: /* disconnect */\r | |
242 | ptr_sor = 0; /* clear state */\r | |
243 | xfr_req = xfr_req & ~XFR_PTR; /* clr xfr flag */\r | |
244 | sim_cancel (&ptr_unit); /* deactivate unit */\r | |
245 | break;\r | |
246 | \r | |
247 | case IO_READ: /* read */\r | |
248 | xfr_req = xfr_req & ~XFR_PTR; /* clr xfr flag */\r | |
249 | *dat = ptr_unit.buf & 077; /* get buf data */\r | |
250 | if (ptr_unit.buf != odd_par[*dat]) /* good parity? */\r | |
251 | chan_set_flag (ptr_dib.chan, CHF_ERR); /* no, error */\r | |
252 | break;\r | |
253 | \r | |
254 | case IO_WREOR: /* write eor */\r | |
255 | break;\r | |
256 | \r | |
257 | case IO_EOM1: /* EOM mode 1*/\r | |
258 | case IO_WRITE: /* write */\r | |
259 | CRETINS; /* error */\r | |
260 | }\r | |
261 | \r | |
262 | return SCPE_OK;\r | |
263 | }\r | |
264 | \r | |
265 | /* Unit service */\r | |
266 | \r | |
267 | t_stat ptr_svc (UNIT *uptr)\r | |
268 | {\r | |
269 | int32 temp;\r | |
270 | \r | |
271 | if ((ptr_unit.flags & UNIT_ATT) == 0) { /* attached? */\r | |
272 | ptr_set_err (); /* no, err, disc */\r | |
273 | CRETIOE (ptr_stopioe, SCPE_UNATT);\r | |
274 | }\r | |
275 | if ((temp = getc (ptr_unit.fileref)) == EOF) { /* end of file? */\r | |
276 | ptr_set_err (); /* yes, err, disc */\r | |
277 | if (feof (ptr_unit.fileref)) { /* end of file? */\r | |
278 | if (ptr_stopioe) printf ("PTR end of file\n");\r | |
279 | else return SCPE_OK;\r | |
280 | }\r | |
281 | else perror ("PTR I/O error"); /* I/O error */\r | |
282 | clearerr (ptr_unit.fileref);\r | |
283 | return SCPE_IOERR;\r | |
284 | }\r | |
285 | ptr_unit.pos = ptr_unit.pos + 1; /* inc position */\r | |
286 | if (temp) { /* leader/gap? */\r | |
287 | ptr_unit.buf = temp & 0177; /* no, save char */\r | |
288 | xfr_req = xfr_req | XFR_PTR; /* set xfr flag */\r | |
289 | ptr_sor = 0; /* in record */\r | |
290 | }\r | |
291 | else if (!ptr_sor) /* end record? */\r | |
292 | chan_set_flag (ptr_dib.chan, CHF_EOR); /* ignore leader */\r | |
293 | sim_activate (&ptr_unit, ptr_unit.wait); /* get next char */\r | |
294 | return SCPE_OK;\r | |
295 | }\r | |
296 | \r | |
297 | /* Fatal error */\r | |
298 | \r | |
299 | void ptr_set_err (void)\r | |
300 | {\r | |
301 | chan_set_flag (ptr_dib.chan, CHF_EOR | CHF_ERR); /* eor, error */\r | |
302 | chan_disc (ptr_dib.chan); /* disconnect */\r | |
303 | xfr_req = xfr_req & ~XFR_PTR; /* clear xfr */\r | |
304 | sim_cancel (&ptr_unit); /* stop */\r | |
305 | return;\r | |
306 | }\r | |
307 | \r | |
308 | /* Reset routine */\r | |
309 | \r | |
310 | t_stat ptr_reset (DEVICE *dptr)\r | |
311 | {\r | |
312 | chan_disc (ptr_dib.chan); /* disconnect */\r | |
313 | ptr_sor = 0; /* clear state */\r | |
314 | ptr_unit.buf = 0;\r | |
315 | xfr_req = xfr_req & ~XFR_PTR; /* clr xfr flag */\r | |
316 | sim_cancel (&ptr_unit); /* deactivate unit */\r | |
317 | return SCPE_OK;\r | |
318 | }\r | |
319 | \r | |
320 | /* Boot routine - simulate FILL console command */\r | |
321 | \r | |
322 | t_stat ptr_boot (int32 unitno, DEVICE *dptr)\r | |
323 | {\r | |
324 | extern uint32 P, M[];\r | |
325 | \r | |
326 | M[0] = 077777771; /* -7B */\r | |
327 | M[1] = 007100000; /* LDX 0 */\r | |
328 | M[2] = 000203604; /* EOM 3604B */\r | |
329 | M[3] = 003200002; /* WIM 2 */\r | |
330 | M[4] = 000100002; /* BRU 2 */\r | |
331 | P = 1; /* start at 1 */\r | |
332 | return SCPE_OK;\r | |
333 | }\r | |
334 | \r | |
335 | /* Paper tape punch\r | |
336 | \r | |
337 | conn - inst = EOM0, dat = NULL\r | |
338 | eom1 - inst = EOM1, dat = NULL\r | |
339 | sks - inst = SKS, dat = ptr to result\r | |
340 | disc - inst = device number, dat = NULL\r | |
341 | wreor - inst = device number, dat = NULL\r | |
342 | read - inst = device number, dat = ptr to data\r | |
343 | write - inst = device number, dat = ptr to result\r | |
344 | \r | |
345 | The paper tape punch is an asynchronous streaming output device. That is,\r | |
346 | it can never cause a channel rate error; if no data is available, it waits.\r | |
347 | */\r | |
348 | \r | |
349 | t_stat ptp (uint32 fnc, uint32 inst, uint32 *dat)\r | |
350 | {\r | |
351 | int32 new_ch;\r | |
352 | \r | |
353 | switch (fnc) { /* case function */\r | |
354 | \r | |
355 | case IO_CONN:\r | |
356 | new_ch = I_GETEOCH (inst); /* get new chan */\r | |
357 | if (new_ch != ptp_dib.chan) return SCPE_IERR; /* inv conn? err */\r | |
358 | ptp_ldr = (inst & CHC_NLDR)? 0: 1; /* leader? */\r | |
359 | xfr_req = xfr_req & ~XFR_PTP; /* clr xfr flag */\r | |
360 | sim_activate (&ptp_unit, ptp_unit.wait); /* activate */\r | |
361 | break;\r | |
362 | \r | |
363 | case IO_DISC: /* disconnect */\r | |
364 | ptp_ldr = 0; /* clear state */\r | |
365 | xfr_req = xfr_req & ~XFR_PTP; /* clr xfr flag */\r | |
366 | sim_cancel (&ptp_unit); /* deactivate unit */\r | |
367 | break;\r | |
368 | \r | |
369 | case IO_WRITE: /* write */\r | |
370 | xfr_req = xfr_req & ~XFR_PTP; /* clr xfr flag */\r | |
371 | sim_activate (&ptp_unit, ptp_unit.wait); /* activate */\r | |
372 | ptp_unit.buf = odd_par[(*dat) & 077]; /* save data */\r | |
373 | return ptp_out (ptp_unit.buf); /* punch w/ par */\r | |
374 | \r | |
375 | case IO_WREOR: /* write eor */\r | |
376 | break;\r | |
377 | \r | |
378 | case IO_EOM1: /* EOM mode 1*/\r | |
379 | case IO_READ: /* read */\r | |
380 | CRETINS; /* error */\r | |
381 | }\r | |
382 | \r | |
383 | return SCPE_OK;\r | |
384 | }\r | |
385 | \r | |
386 | /* Unit service */\r | |
387 | \r | |
388 | t_stat ptp_svc (UNIT *uptr)\r | |
389 | {\r | |
390 | int32 i;\r | |
391 | t_stat r = SCPE_OK;\r | |
392 | \r | |
393 | if (ptp_ldr) { /* need leader? */\r | |
394 | for (i = 0; i < 12; i++) { /* punch leader */\r | |
395 | if (r = ptp_out (0)) break;\r | |
396 | }\r | |
397 | }\r | |
398 | ptp_ldr = 0; /* clear flag */\r | |
399 | chan_set_ordy (ptp_dib.chan); /* ptp ready */\r | |
400 | return r;\r | |
401 | }\r | |
402 | \r | |
403 | /* Punch I/O */\r | |
404 | \r | |
405 | t_stat ptp_out (int32 dat)\r | |
406 | {\r | |
407 | if ((ptp_unit.flags & UNIT_ATT) == 0) { /* attached? */\r | |
408 | ptp_set_err (); /* no, disc, err */\r | |
409 | CRETIOE (ptp_stopioe, SCPE_UNATT);\r | |
410 | }\r | |
411 | if (putc (dat, ptp_unit.fileref) == EOF) { /* I/O error? */\r | |
412 | ptp_set_err (); /* yes, disc, err */\r | |
413 | perror ("PTP I/O error"); /* print msg */\r | |
414 | clearerr (ptp_unit.fileref);\r | |
415 | return SCPE_IOERR;\r | |
416 | }\r | |
417 | ptp_unit.pos = ptp_unit.pos + 1; /* inc position */\r | |
418 | return SCPE_OK;\r | |
419 | }\r | |
420 | \r | |
421 | /* Fatal error */\r | |
422 | \r | |
423 | void ptp_set_err (void)\r | |
424 | {\r | |
425 | chan_set_flag (ptp_dib.chan, CHF_ERR); /* error */\r | |
426 | chan_disc (ptp_dib.chan); /* disconnect */\r | |
427 | xfr_req = xfr_req & ~XFR_PTP; /* clear xfr */\r | |
428 | sim_cancel (&ptp_unit); /* stop */\r | |
429 | return;\r | |
430 | }\r | |
431 | \r | |
432 | /* Reset routine */\r | |
433 | \r | |
434 | t_stat ptp_reset (DEVICE *dptr)\r | |
435 | {\r | |
436 | chan_disc (ptp_dib.chan); /* disconnect */\r | |
437 | ptp_ldr = 0; /* clear state */\r | |
438 | ptp_unit.buf = 0;\r | |
439 | xfr_req = xfr_req & ~XFR_PTP; /* clr xfr flag */\r | |
440 | sim_cancel (&ptp_unit); /* deactivate unit */\r | |
441 | return SCPE_OK;\r | |
442 | }\r | |
443 | \r | |
444 | /* Typewriter input\r | |
445 | \r | |
446 | conn - inst = EOM0, dat = NULL\r | |
447 | eom1 - inst = EOM1, dat = NULL\r | |
448 | sks - inst = SKS, dat = ptr to result\r | |
449 | disc - inst = device number, dat = NULL\r | |
450 | wreor - inst = device number, dat = NULL\r | |
451 | read - inst = device number, dat = ptr to data\r | |
452 | write - inst = device number, dat = ptr to result\r | |
453 | \r | |
454 | The typewriter input is an asynchronous input device. That is, it can\r | |
455 | never cause a channel rate error; if no data is available, it waits.\r | |
456 | */\r | |
457 | \r | |
458 | t_stat tti (uint32 fnc, uint32 inst, uint32 *dat)\r | |
459 | {\r | |
460 | int32 new_ch;\r | |
461 | \r | |
462 | switch (fnc) { /* case function */\r | |
463 | \r | |
464 | case IO_CONN: /* connect */\r | |
465 | new_ch = I_GETEOCH (inst); /* get new chan */\r | |
466 | if (new_ch != tti_dib.chan) return SCPE_IERR; /* inv conn? err */\r | |
467 | xfr_req = xfr_req & ~XFR_TTI; /* clr xfr flag */\r | |
468 | break;\r | |
469 | \r | |
470 | case IO_DISC: /* disconnect */\r | |
471 | xfr_req = xfr_req & ~XFR_TTI; /* clr xfr flag */\r | |
472 | break;\r | |
473 | \r | |
474 | case IO_READ: /* read */\r | |
475 | xfr_req = xfr_req & ~XFR_TTI; /* clr xfr flag */\r | |
476 | *dat = tti_unit.buf; /* get buf data */\r | |
477 | break;\r | |
478 | \r | |
479 | case IO_WREOR: /* write eor */\r | |
480 | break;\r | |
481 | \r | |
482 | case IO_EOM1: /* EOM mode 1*/\r | |
483 | case IO_WRITE: /* write */\r | |
484 | CRETINS; /* error */\r | |
485 | }\r | |
486 | \r | |
487 | return SCPE_OK;\r | |
488 | }\r | |
489 | \r | |
490 | /* Unit service */\r | |
491 | \r | |
492 | t_stat tti_svc (UNIT *uptr)\r | |
493 | {\r | |
494 | int32 temp;\r | |
495 | \r | |
496 | sim_activate (&tti_unit, tti_unit.wait); /* continue poll */\r | |
497 | if ((temp = sim_poll_kbd ()) < SCPE_KFLAG) return temp; /* no char or error? */\r | |
498 | if (temp & SCPE_BREAK) return SCPE_OK; /* ignore break */\r | |
499 | temp = temp & 0177;\r | |
500 | tti_unit.pos = tti_unit.pos + 1;\r | |
501 | if (ascii_to_sds[temp] >= 0) {\r | |
502 | tti_unit.buf = ascii_to_sds[temp]; /* internal rep */\r | |
503 | sim_putchar (temp); /* echo */\r | |
504 | if (temp == '\r') sim_putchar ('\n'); /* lf after cr */\r | |
505 | xfr_req = xfr_req | XFR_TTI; /* set xfr flag */\r | |
506 | }\r | |
507 | else sim_putchar (007); /* ding! */\r | |
508 | return SCPE_OK;\r | |
509 | }\r | |
510 | \r | |
511 | t_stat tti_reset (DEVICE *dptr)\r | |
512 | {\r | |
513 | chan_disc (tti_dib.chan); /* disconnect */\r | |
514 | tti_unit.buf = 0; /* clear state */\r | |
515 | xfr_req = xfr_req & ~XFR_TTI; /* clr xfr flag */\r | |
516 | sim_activate (&tti_unit, tti_unit.wait); /* start poll */\r | |
517 | return SCPE_OK;\r | |
518 | }\r | |
519 | \r | |
520 | /* Typewriter output\r | |
521 | \r | |
522 | conn - inst = EOM0, dat = NULL\r | |
523 | eom1 - inst = EOM1, dat = NULL\r | |
524 | sks - inst = SKS, dat = ptr to result\r | |
525 | disc - inst = device number, dat = NULL\r | |
526 | wreor - inst = device number, dat = NULL\r | |
527 | read - inst = device number, dat = ptr to data\r | |
528 | write - inst = device number, dat = ptr to result\r | |
529 | \r | |
530 | The typewriter output is an asynchronous streaming output device. That is,\r | |
531 | it can never cause a channel rate error; if no data is available, it waits.\r | |
532 | */\r | |
533 | \r | |
534 | t_stat tto (uint32 fnc, uint32 inst, uint32 *dat)\r | |
535 | {\r | |
536 | int32 new_ch;\r | |
537 | \r | |
538 | switch (fnc) { /* case function */\r | |
539 | \r | |
540 | case IO_CONN:\r | |
541 | new_ch = I_GETEOCH (inst); /* get new chan */\r | |
542 | if (new_ch != tto_dib.chan) return SCPE_IERR; /* inv conn? err */\r | |
543 | xfr_req = xfr_req & ~XFR_TTO; /* clr xfr flag */\r | |
544 | sim_activate (&tto_unit, tto_unit.wait); /* activate */\r | |
545 | break;\r | |
546 | \r | |
547 | case IO_DISC: /* disconnect */\r | |
548 | xfr_req = xfr_req & ~XFR_TTO; /* clr xfr flag */\r | |
549 | sim_cancel (&tto_unit); /* deactivate unit */\r | |
550 | break;\r | |
551 | \r | |
552 | case IO_WRITE: /* write */\r | |
553 | xfr_req = xfr_req & ~XFR_TTO; /* clr xfr flag */\r | |
554 | tto_unit.buf = (*dat) & 077; /* save data */\r | |
555 | sim_activate (&tto_unit, tto_unit.wait); /* activate */\r | |
556 | break;\r | |
557 | \r | |
558 | case IO_WREOR: /* write eor */\r | |
559 | break;\r | |
560 | \r | |
561 | case IO_EOM1: /* EOM mode 1*/\r | |
562 | case IO_READ: /* read */\r | |
563 | CRETINS; /* error */\r | |
564 | }\r | |
565 | \r | |
566 | return SCPE_OK;\r | |
567 | }\r | |
568 | \r | |
569 | /* Unit service */\r | |
570 | \r | |
571 | t_stat tto_svc (UNIT *uptr)\r | |
572 | {\r | |
573 | int32 asc;\r | |
574 | t_stat r;\r | |
575 | \r | |
576 | if (uptr->buf == TT_CR) asc = '\r'; /* control chars? */\r | |
577 | else if (uptr->buf == TT_BS) asc = '\b';\r | |
578 | else if (uptr->buf == TT_TB) asc = '\t';\r | |
579 | else asc = sds_to_ascii[uptr->buf]; /* translate */\r | |
580 | if ((r = sim_putchar_s (asc)) != SCPE_OK) { /* output; error? */\r | |
581 | sim_activate (uptr, uptr->wait); /* retry */\r | |
582 | return ((r == SCPE_STALL)? SCPE_OK: r); /* !stall? report */\r | |
583 | }\r | |
584 | uptr->pos = uptr->pos + 1; /* inc position */\r | |
585 | chan_set_ordy (tto_dib.chan); /* tto rdy */\r | |
586 | if (asc == '\r') { /* CR? */\r | |
587 | sim_putchar ('\n'); /* add lf */\r | |
588 | uptr->pos = uptr->pos + 1; /* inc position */\r | |
589 | }\r | |
590 | return SCPE_OK;\r | |
591 | }\r | |
592 | \r | |
593 | /* Reset routine */\r | |
594 | \r | |
595 | t_stat tto_reset (DEVICE *dptr)\r | |
596 | {\r | |
597 | chan_disc (tto_dib.chan); /* disconnect */\r | |
598 | tto_unit.buf = 0; /* clear state */\r | |
599 | xfr_req = xfr_req & ~XFR_TTO; /* clr xfr flag */\r | |
600 | sim_cancel (&tto_unit); /* deactivate unit */\r | |
601 | return SCPE_OK;\r | |
602 | }\r |