Commit | Line | Data |
---|---|---|
196ba1fc PH |
1 | /* lgp_stddev.c: LGP-30 standard devices\r |
2 | \r | |
3 | Copyright (c) 2004-2005, 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 | tti typewriter input (keyboard and reader)\r | |
27 | tto typewriter output (printer and punch)\r | |
28 | ptr high speed reader\r | |
29 | ptpp high speed punch\r | |
30 | */\r | |
31 | \r | |
32 | #include "lgp_defs.h"\r | |
33 | #include <ctype.h>\r | |
34 | \r | |
35 | uint32 tt_wait = WPS / 10;\r | |
36 | uint32 tti_buf = 0;\r | |
37 | uint32 tti_rdy = 0;\r | |
38 | uint32 tto_uc = 0;\r | |
39 | uint32 tto_buf = 0;\r | |
40 | uint32 ttr_stopioe = 1;\r | |
41 | uint32 ptr_rdy = 0;\r | |
42 | uint32 ptr_stopioe = 1;\r | |
43 | uint32 ptp_stopioe = 1;\r | |
44 | \r | |
45 | extern uint32 A;\r | |
46 | extern uint32 inp_strt, inp_done;\r | |
47 | extern uint32 out_strt, out_done;\r | |
48 | extern UNIT cpu_unit;\r | |
49 | extern int32 sim_switches;\r | |
50 | \r | |
51 | t_stat tti_svc (UNIT *uptr);\r | |
52 | t_stat ttr_svc (UNIT *uptr);\r | |
53 | t_stat tto_svc (UNIT *uptr);\r | |
54 | t_stat tti_reset (DEVICE *uptr);\r | |
55 | t_stat tto_reset (DEVICE *uptr);\r | |
56 | t_stat ptr_svc (UNIT *uptr);\r | |
57 | t_stat ptp_svc (UNIT *uptr);\r | |
58 | t_stat ptr_reset (DEVICE *uptr);\r | |
59 | t_stat ptp_reset (DEVICE *uptr);\r | |
60 | t_stat tap_attach (UNIT *uptr, char *cptr);\r | |
61 | t_stat tap_attable (UNIT *uptr, int32 val, char *cptr, void *desc);\r | |
62 | t_stat read_reader (UNIT *uptr, int32 stop, int32 *c);\r | |
63 | t_stat write_tto (int32 flex);\r | |
64 | t_stat write_punch (UNIT *uptr, int32 flex);\r | |
65 | t_stat tti_rdrss (UNIT *uptr, int32 val, char *cptr, void *desc);\r | |
66 | t_stat punch_feed (UNIT *uptr, int32 val, char *cptr, void *desc);\r | |
67 | t_stat send_start (UNIT *uptr, int32 val, char *cptr, void *desc);\r | |
68 | \r | |
69 | extern uint32 shift_in (uint32 a, uint32 dat, uint32 sh4);\r | |
70 | \r | |
71 | /* Conversion tables */\r | |
72 | \r | |
73 | const int32 flex_to_ascii[128] = {\r | |
74 | -1 , 'z', '0', ' ', '>', 'b', '1', '-',\r | |
75 | '<' , 'y', '2', '+', '|', 'r', '3', ';',\r | |
76 | '\r', 'i', '4', '/','\\', 'd', '5', '.',\r | |
77 | '\t', 'n', '6', ',', -1 , 'm', '7', 'v',\r | |
78 | '\'', 'p', '8', 'o', -1 , 'e', '9', 'x',\r | |
79 | -1 , 'u', 'f', -1 , -1 , 't', 'g', -1 ,\r | |
80 | -1 , 'h', 'j', -1 , -1 , 'c', 'k', -1 ,\r | |
81 | -1 , 'a', 'q', -1 , -1 , 's', 'w', 0 ,\r | |
82 | \r | |
83 | -1 , 'Z', ')', ' ', -1 , 'B', 'L', '_',\r | |
84 | -1 , 'Y', '*', '=', '|', 'R', '"', ':',\r | |
85 | '\r', 'I', '^', '?','\\', 'D', '%', ']',\r | |
86 | '\t', 'N', '$', '[', -1 , 'M', '~', 'V',\r | |
87 | '\'', 'P', '#', 'O', -1 , 'E', '(', 'X',\r | |
88 | -1 , 'U', 'F', -1 , -1 , 'T', 'G', -1 ,\r | |
89 | -1 , 'H', 'J', -1 , -1 , 'C', 'K', -1 ,\r | |
90 | -1 , 'A', 'Q', -1 , -1 , 'S', 'W', 0\r | |
91 | };\r | |
92 | \r | |
93 | const int32 ascii_to_flex[128] = {\r | |
94 | -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 ,\r | |
95 | 024, 030, -1 , -1 , -1 , 020, -1 , -1 ,\r | |
96 | -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 ,\r | |
97 | -1 , -1 , -1 , -1 , -1 , -1 , -1 , -1 ,\r | |
98 | 003, -1 , 016, 042, 032, 026, -1 , 040,\r | |
99 | 046, 001, 012, 013, 033, 007, 027, 023,\r | |
100 | 002, 006, 012, 016, 022, 026, 032, 036,\r | |
101 | 042, 046, 017, 017, 004, 013, 010, 023,\r | |
102 | -1 , 071, 005, 065, 025, 045, 052, 056,\r | |
103 | 061, 021, 062, 066, 006, 035, 031, 043,\r | |
104 | 041, 072, 015, 075, 055, 051, 037, 076,\r | |
105 | 047, 011, 001, 033, -1 , 027, 022, 007,\r | |
106 | - 1, 071, 005, 065, 025, 045, 052, 056,\r | |
107 | 061, 021, 062, 066, 006, 035, 031, 043,\r | |
108 | 041, 072, 015, 075, 055, 051, 037, 076,\r | |
109 | 047, 011, 001, -1 , 014, -1 , 036, 077\r | |
110 | };\r | |
111 | \r | |
112 | static const uint8 flex_inp_valid[64] = {\r | |
113 | 1, 1, 1, 1, 0, 1, 1, 1,\r | |
114 | 0, 1, 1, 1, 0, 1, 1, 1,\r | |
115 | 0, 1, 1, 1, 0, 1, 1, 1,\r | |
116 | 0, 1, 1, 1, 0, 1, 1, 1,\r | |
117 | 1, 1, 1, 1, 0, 1, 1, 1,\r | |
118 | 0, 1, 1, 1, 0, 1, 1, 1,\r | |
119 | 0, 1, 1, 1, 0, 1, 1, 1,\r | |
120 | 0, 1, 1, 1, 0, 1, 1, 1\r | |
121 | };\r | |
122 | \r | |
123 | /* TTI data structures\r | |
124 | \r | |
125 | tti_dev TTI device descriptor\r | |
126 | tti_unit TTI unit descriptor\r | |
127 | tti_mod TTI modifier list\r | |
128 | tti_reg TTI register list\r | |
129 | */\r | |
130 | \r | |
131 | UNIT tti_unit[] = {\r | |
132 | { UDATA (&tti_svc, 0, 0) },\r | |
133 | { UDATA (&ttr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0) }\r | |
134 | };\r | |
135 | \r | |
136 | REG tti_reg[] = {\r | |
137 | { HRDATA (BUF, tti_buf, 6) },\r | |
138 | { FLDATA (RDY, tti_rdy, 0) },\r | |
139 | { DRDATA (KPOS, tti_unit[0].pos, T_ADDR_W), PV_LEFT },\r | |
140 | { DRDATA (RPOS, tti_unit[1].pos, T_ADDR_W), PV_LEFT },\r | |
141 | { DRDATA (TIME, tt_wait, 24), REG_NZ + PV_LEFT },\r | |
142 | { FLDATA (STOP_IOE, ttr_stopioe, 0) },\r | |
143 | { NULL }\r | |
144 | };\r | |
145 | \r | |
146 | MTAB tti_mod[] = {\r | |
147 | { UNIT_FLEX_D, UNIT_FLEX_D, NULL, "FLEX", &tap_attable },\r | |
148 | { UNIT_FLEX_D, 0, NULL, "ASCII", &tap_attable },\r | |
149 | { UNIT_ATT+UNIT_FLEX, UNIT_ATT+UNIT_FLEX,\r | |
150 | "file is Flex", NULL },\r | |
151 | { UNIT_ATT+UNIT_FLEX, UNIT_ATT,\r | |
152 | "file is ASCII", NULL },\r | |
153 | { UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE+UNIT_FLEX,\r | |
154 | "default is Flex", NULL },\r | |
155 | { UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE,\r | |
156 | "default is ASCII", NULL },\r | |
157 | { UNIT_ATTABLE+UNIT_NOCS, UNIT_ATTABLE+UNIT_NOCS,\r | |
158 | "ignore conditional stop", "NOCSTOP", &tap_attable },\r | |
159 | { UNIT_ATTABLE+UNIT_NOCS, UNIT_ATTABLE ,\r | |
160 | NULL, "CSTOP", &tap_attable },\r | |
161 | { MTAB_XTD|MTAB_VDV, 0, NULL, "START", &send_start },\r | |
162 | { MTAB_XTD|MTAB_VDV, 1, NULL, "RSTART", &tti_rdrss },\r | |
163 | { MTAB_XTD|MTAB_VDV, 0, NULL, "RSTOP", &tti_rdrss },\r | |
164 | { 0 }\r | |
165 | };\r | |
166 | \r | |
167 | DEVICE tti_dev = {\r | |
168 | "TTI", tti_unit, tti_reg, tti_mod,\r | |
169 | 2, 10, 31, 1, 16, 7,\r | |
170 | NULL, NULL, &tti_reset,\r | |
171 | NULL, &tap_attach, NULL\r | |
172 | };\r | |
173 | \r | |
174 | /* TTO data structures\r | |
175 | \r | |
176 | tto_dev TTO device descriptor\r | |
177 | tto_unit TTO unit descriptor\r | |
178 | tto_mod TTO modifier list\r | |
179 | tto_reg TTO register list\r | |
180 | */\r | |
181 | \r | |
182 | UNIT tto_unit[] = {\r | |
183 | { UDATA (&tto_svc, 0, 0) },\r | |
184 | { UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE, 0) }\r | |
185 | };\r | |
186 | \r | |
187 | REG tto_reg[] = {\r | |
188 | { HRDATA (BUF, tto_buf, 6) },\r | |
189 | { FLDATA (UC, tto_uc, 0) },\r | |
190 | { DRDATA (TPOS, tto_unit[0].pos, T_ADDR_W), PV_LEFT },\r | |
191 | { DRDATA (PPOS, tto_unit[1].pos, T_ADDR_W), PV_LEFT },\r | |
192 | { DRDATA (TIME, tt_wait, 24), PV_LEFT },\r | |
193 | { NULL }\r | |
194 | };\r | |
195 | \r | |
196 | MTAB tto_mod[] = {\r | |
197 | { UNIT_FLEX_D, UNIT_FLEX_D, NULL, "FLEX", &tap_attable },\r | |
198 | { UNIT_FLEX_D, 0, NULL, "ASCII", &tap_attable },\r | |
199 | { UNIT_ATT+UNIT_FLEX, UNIT_ATT+UNIT_FLEX,\r | |
200 | "file is Flex", NULL },\r | |
201 | { UNIT_ATT+UNIT_FLEX, UNIT_ATT,\r | |
202 | "file is ASCII", NULL },\r | |
203 | { UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE+UNIT_FLEX,\r | |
204 | "default is Flex", NULL },\r | |
205 | { UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE,\r | |
206 | "default is ASCII", NULL },\r | |
207 | { MTAB_XTD|MTAB_VUN, 0, NULL, "FEED", &punch_feed },\r | |
208 | { 0 }\r | |
209 | };\r | |
210 | \r | |
211 | DEVICE tto_dev = {\r | |
212 | "TTO", tto_unit, tto_reg, tto_mod,\r | |
213 | 2, 10, 31, 1, 16, 7,\r | |
214 | NULL, NULL, &tto_reset, \r | |
215 | NULL, &tap_attach, NULL\r | |
216 | };\r | |
217 | \r | |
218 | /* PTR data structures\r | |
219 | \r | |
220 | ptr_dev PTR device descriptor\r | |
221 | ptr_unit PTR unit descriptor\r | |
222 | ptr_mod PTR modifier list\r | |
223 | ptr_reg PTR register list\r | |
224 | */\r | |
225 | \r | |
226 | UNIT ptr_unit = {\r | |
227 | UDATA (&ptr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0), WPS / 200\r | |
228 | };\r | |
229 | \r | |
230 | REG ptr_reg[] = {\r | |
231 | { HRDATA (BUF, ptr_unit.buf, 6) },\r | |
232 | { FLDATA (RDY, ptr_rdy, 0) },\r | |
233 | { DRDATA (POS, ptr_unit.pos, T_ADDR_W), PV_LEFT },\r | |
234 | { DRDATA (TIME, ptr_unit.wait, 24), REG_NZ + PV_LEFT },\r | |
235 | { FLDATA (STOP_IOE, ptr_stopioe, 0) },\r | |
236 | { NULL }\r | |
237 | };\r | |
238 | \r | |
239 | MTAB ptr_mod[] = {\r | |
240 | { UNIT_FLEX_D, UNIT_FLEX_D, NULL, "FLEX", &tap_attable },\r | |
241 | { UNIT_FLEX_D, 0, NULL, "ASCII", &tap_attable },\r | |
242 | { UNIT_ATT+UNIT_FLEX, UNIT_ATT+UNIT_FLEX,\r | |
243 | "file is Flex", NULL },\r | |
244 | { UNIT_ATT+UNIT_FLEX, UNIT_ATT,\r | |
245 | "file is ASCII", NULL },\r | |
246 | { UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE+UNIT_FLEX,\r | |
247 | "default is Flex", NULL },\r | |
248 | { UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE,\r | |
249 | "default is ASCII", NULL },\r | |
250 | { 0 }\r | |
251 | };\r | |
252 | \r | |
253 | DEVICE ptr_dev = {\r | |
254 | "PTR", &ptr_unit, ptr_reg, ptr_mod,\r | |
255 | 1, 10, 31, 1, 16, 7,\r | |
256 | NULL, NULL, &ptr_reset,\r | |
257 | NULL, &tap_attach, NULL\r | |
258 | };\r | |
259 | \r | |
260 | /* PTP data structures\r | |
261 | \r | |
262 | ptp_dev PTP device descriptor\r | |
263 | ptp_unit PTP unit descriptor\r | |
264 | ptp_mod PTP modifier list\r | |
265 | ptp_reg PTP register list\r | |
266 | */\r | |
267 | \r | |
268 | UNIT ptp_unit = {\r | |
269 | UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE, 0), WPS / 20\r | |
270 | };\r | |
271 | \r | |
272 | REG ptp_reg[] = {\r | |
273 | { ORDATA (BUF, ptp_unit.buf, 8) },\r | |
274 | { DRDATA (POS, ptp_unit.pos, T_ADDR_W), PV_LEFT },\r | |
275 | { DRDATA (TIME, ptp_unit.wait, 24), PV_LEFT },\r | |
276 | { FLDATA (STOP_IOE, ptp_stopioe, 0) },\r | |
277 | { NULL }\r | |
278 | };\r | |
279 | \r | |
280 | MTAB ptp_mod[] = {\r | |
281 | { UNIT_FLEX_D, UNIT_FLEX_D, NULL, "FLEX", &tap_attable },\r | |
282 | { UNIT_FLEX_D, 0, NULL, "ASCII", &tap_attable },\r | |
283 | { UNIT_ATT+UNIT_FLEX, UNIT_ATT+UNIT_FLEX,\r | |
284 | "file is Flex", NULL },\r | |
285 | { UNIT_ATT+UNIT_FLEX, UNIT_ATT,\r | |
286 | "file is ASCII", NULL },\r | |
287 | { UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE+UNIT_FLEX,\r | |
288 | "default is Flex", NULL },\r | |
289 | { UNIT_ATTABLE+UNIT_ATT+UNIT_FLEX, UNIT_ATTABLE,\r | |
290 | "default is ASCII", NULL },\r | |
291 | { 0 }\r | |
292 | };\r | |
293 | \r | |
294 | DEVICE ptp_dev = {\r | |
295 | "PTP", &ptp_unit, ptp_reg, ptp_mod,\r | |
296 | 1, 10, 31, 1, 16, 7,\r | |
297 | NULL, NULL, &ptp_reset,\r | |
298 | NULL, &tap_attach, NULL\r | |
299 | };\r | |
300 | \r | |
301 | /* Input instruction */\r | |
302 | \r | |
303 | void op_i_strt (uint32 dev)\r | |
304 | {\r | |
305 | switch (dev) { /* case on device */\r | |
306 | \r | |
307 | case DEV_PT: /* ptr */\r | |
308 | sim_activate (&ptr_unit, ptr_unit.wait); /* activate */\r | |
309 | break;\r | |
310 | \r | |
311 | case DEV_TT: /* tti/ttr */\r | |
312 | if (Q_MANI) sim_putchar ('`'); /* manual input? */\r | |
313 | else sim_activate (&tti_unit[1], tt_wait); /* no, must be ttr */\r | |
314 | break;\r | |
315 | }\r | |
316 | return;\r | |
317 | } \r | |
318 | \r | |
319 | t_stat op_i (uint32 dev, uint32 ch, uint32 sh4)\r | |
320 | {\r | |
321 | if (Q_LGP21 && out_strt) return STOP_STALL; /* LGP-21? must be idle */\r | |
322 | if (!inp_strt) { /* input started? */\r | |
323 | inp_strt = 1; /* no, set start */\r | |
324 | inp_done = 0; /* clear done */\r | |
325 | A = shift_in (A, ch, sh4);\r | |
326 | tti_rdy = ptr_rdy = 0; /* no input */\r | |
327 | if (Q_LGP21 || Q_INPT) op_i_strt (dev); /* LGP-21 or PTR? start */\r | |
328 | }\r | |
329 | switch (dev) { /* case on device */\r | |
330 | \r | |
331 | case DEV_PT: /* ptr */\r | |
332 | if (ptr_rdy) { /* char ready? */\r | |
333 | ptr_rdy = 0; /* reset ready */\r | |
334 | if ((ptr_unit.buf != FLEX_DEL) && /* ignore delete and */\r | |
335 | (!Q_LGP21 || ((ptr_unit.buf & 3) == 2))) /* LGP-21 4b? zone != 2 */\r | |
336 | A = shift_in (A, ptr_unit.buf, sh4); /* shift data in */\r | |
337 | }\r | |
338 | break;\r | |
339 | \r | |
340 | case DEV_TT: /* tti/ttr */\r | |
341 | if (tti_rdy) { /* char ready? */\r | |
342 | tti_rdy = 0; /* reset ready */\r | |
343 | if ((tti_buf != FLEX_DEL) && /* ignore delete and */\r | |
344 | (!Q_LGP21 || ((tti_buf & 3) != 0))) /* LGP-21 4b? zone == 0 */\r | |
345 | A = shift_in (A, tti_buf, sh4); /* shift data in */\r | |
346 | }\r | |
347 | break;\r | |
348 | \r | |
349 | default: /* nx device */\r | |
350 | return STOP_NXDEV; /* return error */\r | |
351 | }\r | |
352 | \r | |
353 | if (inp_done) { /* done? */\r | |
354 | inp_strt = inp_done = 0; /* clear start, done */\r | |
355 | return SCPE_OK; /* no stall */\r | |
356 | }\r | |
357 | return STOP_STALL; /* stall */\r | |
358 | }\r | |
359 | \r | |
360 | /* Terminal keyboard unit service */\r | |
361 | \r | |
362 | t_stat tti_svc (UNIT *uptr)\r | |
363 | {\r | |
364 | int32 c, flex;\r | |
365 | \r | |
366 | sim_activate (uptr, tt_wait); /* continue poll */\r | |
367 | if ((c = sim_poll_kbd ()) < SCPE_KFLAG) return c; /* no char or error? */\r | |
368 | flex = ascii_to_flex[c & 0x1FF]; /* cvt to flex */\r | |
369 | if (flex > 0) { /* it's a typewriter... */\r | |
370 | write_tto (flex); /* always echos */\r | |
371 | if (tto_unit[1].flags & UNIT_ATT) /* ttp attached? */\r | |
372 | write_punch (&tto_unit[1], tto_buf); /* punch to ttp */\r | |
373 | }\r | |
374 | else write_tto ('\a'); /* don't echo bad */\r | |
375 | if (Q_MANI && (flex > 0) && flex_inp_valid[flex]) { /* wanted, valid? */\r | |
376 | if (flex == FLEX_CSTOP) inp_done = 1; /* conditional stop? */\r | |
377 | else tti_rdy = 1; /* no, set ready */\r | |
378 | tti_buf = flex; /* save char */\r | |
379 | uptr->pos = uptr->pos + 1;\r | |
380 | }\r | |
381 | return SCPE_OK;\r | |
382 | }\r | |
383 | \r | |
384 | /* Terminal reader unit service */\r | |
385 | \r | |
386 | t_stat ttr_svc (UNIT *uptr)\r | |
387 | {\r | |
388 | t_stat r;\r | |
389 | \r | |
390 | if (r = read_reader (uptr, ttr_stopioe, (int32 *) &tti_buf)) return r;\r | |
391 | if (!(uptr->flags & UNIT_NOCS) && /* cstop enable? */\r | |
392 | (tti_buf == FLEX_CSTOP)) inp_done = 1; /* cond stop? */\r | |
393 | else {\r | |
394 | tti_rdy = 1; /* no, set ready */\r | |
395 | sim_activate (uptr, tt_wait); /* cont reading */\r | |
396 | }\r | |
397 | write_tto (tti_buf); /* echo to tto */\r | |
398 | if (tto_unit[1].flags & UNIT_ATT) /* ttp attached? */\r | |
399 | return write_punch (&tto_unit[1], tti_buf); /* punch to ttp */\r | |
400 | return SCPE_OK;\r | |
401 | }\r | |
402 | \r | |
403 | /* Paper tape reader unit service */\r | |
404 | \r | |
405 | t_stat ptr_svc (UNIT *uptr)\r | |
406 | {\r | |
407 | t_stat r;\r | |
408 | \r | |
409 | if (r = read_reader (uptr, ptr_stopioe, &uptr->buf)) return r;\r | |
410 | if (uptr->buf == FLEX_CSTOP) inp_done = 1; /* cond stop? */\r | |
411 | else {\r | |
412 | ptr_rdy = 1; /* no, set ready */\r | |
413 | sim_activate (uptr, uptr->wait); /* cont reading */\r | |
414 | }\r | |
415 | return SCPE_OK;\r | |
416 | }\r | |
417 | \r | |
418 | /* Output instruction */\r | |
419 | \r | |
420 | t_stat op_p (uint32 dev, uint32 ch)\r | |
421 | {\r | |
422 | switch (dev) { /* case on device */\r | |
423 | \r | |
424 | case DEV_PT: /* paper tape punch */\r | |
425 | if (sim_is_active (&ptp_unit)) /* busy? */\r | |
426 | return (Q_LGP21? STOP_STALL: SCPE_OK); /* LGP-21: stall */\r | |
427 | ptp_unit.buf = ch; /* save char */\r | |
428 | sim_activate (&ptp_unit, ptp_unit.wait); /* activate ptp */\r | |
429 | break;\r | |
430 | \r | |
431 | case DEV_TT: /* typewriter */\r | |
432 | if (ch == 0) { /* start input? */\r | |
433 | if (!Q_LGP21 && !Q_INPT) /* ignore if LGP-21, ptr */\r | |
434 | op_i_strt (DEV_TT); /* start tti */\r | |
435 | return SCPE_OK; /* no stall */\r | |
436 | }\r | |
437 | if (sim_is_active (&tto_unit[0])) /* busy? */\r | |
438 | return (Q_LGP21? STOP_STALL: SCPE_OK); /* LGP-21: stall */\r | |
439 | tto_buf = ch; /* save char */\r | |
440 | sim_activate (&tto_unit[0], tt_wait); /* activate tto */\r | |
441 | break;\r | |
442 | \r | |
443 | default: /* unknown */\r | |
444 | return STOP_NXDEV; /* return error */\r | |
445 | }\r | |
446 | \r | |
447 | if (out_strt == 0) { /* output started? */\r | |
448 | out_strt = 1; /* flag start */\r | |
449 | out_done = 0; /* clear done */\r | |
450 | }\r | |
451 | return SCPE_OK; /* no stall */\r | |
452 | }\r | |
453 | \r | |
454 | /* Terminal printer unit service */\r | |
455 | \r | |
456 | t_stat tto_svc (UNIT *uptr)\r | |
457 | {\r | |
458 | t_stat r;\r | |
459 | \r | |
460 | if ((r = write_tto (tto_buf)) != SCPE_OK) { /* output; error? */\r | |
461 | sim_activate (uptr, tt_wait); /* try again */\r | |
462 | return ((r == SCPE_STALL)? SCPE_OK: r); /* !stall? report */\r | |
463 | }\r | |
464 | out_strt = 0;\r | |
465 | out_done = 1;\r | |
466 | if (tto_unit[1].flags & UNIT_ATT) /* ttp attached? */\r | |
467 | return write_punch (&tto_unit[1], tto_buf); /* punch to ttp */\r | |
468 | return SCPE_OK;\r | |
469 | }\r | |
470 | \r | |
471 | /* Paper tape punch unit service */\r | |
472 | \r | |
473 | t_stat ptp_svc (UNIT *uptr)\r | |
474 | {\r | |
475 | out_strt = 0;\r | |
476 | out_done = 1;\r | |
477 | if ((uptr->flags & UNIT_ATT) == 0) /* not attached? */\r | |
478 | return IORETURN (ptp_stopioe, SCPE_UNATT); /* error */\r | |
479 | return write_punch (uptr, uptr->buf); /* write to ptp */\r | |
480 | }\r | |
481 | \r | |
482 | /* Utility routines */\r | |
483 | \r | |
484 | t_stat read_reader (UNIT *uptr, int32 stop, int32 *fl)\r | |
485 | {\r | |
486 | int32 ch, flex;\r | |
487 | \r | |
488 | if ((uptr->flags & UNIT_ATT) == 0) /* attached? */\r | |
489 | return IORETURN (stop, SCPE_UNATT);\r | |
490 | do {\r | |
491 | if ((ch = getc (uptr->fileref)) == EOF) { /* read char */\r | |
492 | if (feof (uptr->fileref)) { /* err or eof? */\r | |
493 | if (stop) printf ("Reader end of file\n");\r | |
494 | else return SCPE_OK;\r | |
495 | }\r | |
496 | else perror ("Reader I/O error");\r | |
497 | clearerr (uptr->fileref);\r | |
498 | return SCPE_IOERR;\r | |
499 | }\r | |
500 | if (uptr->flags & UNIT_FLEX) /* transposed flex? */\r | |
501 | flex = ((ch << 1) | (ch >> 5)) & 0x3F; /* undo 612345 */\r | |
502 | else if (ch == '#') { /* encoded? */\r | |
503 | int32 d1 = getc (uptr->fileref); /* get 2 digits */\r | |
504 | int32 d2 = getc (uptr->fileref);\r | |
505 | if ((d1 == EOF) || (d2 == EOF)) { /* error? */\r | |
506 | if (feof (uptr->fileref)) { /* eof? */\r | |
507 | if (stop) printf ("Reader end of file\n");\r | |
508 | else return SCPE_OK;\r | |
509 | }\r | |
510 | else perror ("Reader I/O error");\r | |
511 | clearerr (uptr->fileref);\r | |
512 | return SCPE_IOERR;\r | |
513 | }\r | |
514 | flex = (((d1 - '0') * 10) + (d2 - '0')) & 0x3F;\r | |
515 | uptr->pos = uptr->pos + 2;\r | |
516 | }\r | |
517 | else flex = ascii_to_flex[ch & 0x7F]; /* convert */\r | |
518 | uptr->pos = uptr->pos + 1;\r | |
519 | } while (flex < 0); /* until valid */\r | |
520 | *fl = flex; /* return char */\r | |
521 | return SCPE_OK;\r | |
522 | }\r | |
523 | \r | |
524 | t_stat write_tto (int32 flex)\r | |
525 | {\r | |
526 | int32 ch;\r | |
527 | t_stat r;\r | |
528 | \r | |
529 | if (flex == FLEX_UC) tto_uc = 1; /* UC? set state */\r | |
530 | else if (flex == FLEX_LC) tto_uc = 0; /* LC? set state */\r | |
531 | else {\r | |
532 | if (flex == FLEX_BS) ch = '\b'; /* backspace? */\r | |
533 | else ch = flex_to_ascii[flex | (tto_uc << 6)]; /* cvt flex to ascii */\r | |
534 | if (ch > 0) { /* legit? */\r | |
535 | if (r = sim_putchar_s (ch)) return r; /* write char */\r | |
536 | tto_unit[0].pos = tto_unit[0].pos + 1;\r | |
537 | if (flex == FLEX_CR) { /* cr? */\r | |
538 | sim_putchar ('\n'); /* add lf */\r | |
539 | tto_unit[0].pos = tto_unit[0].pos + 1;\r | |
540 | }\r | |
541 | }\r | |
542 | }\r | |
543 | return SCPE_OK;\r | |
544 | }\r | |
545 | \r | |
546 | t_stat write_punch (UNIT *uptr, int32 flex)\r | |
547 | {\r | |
548 | int32 c, sta;\r | |
549 | \r | |
550 | if (uptr->flags & UNIT_FLEX) /* transposed flex? */\r | |
551 | c = ((flex >> 1) | (flex << 5)) & 0x3F; /* reorder to 612345 */\r | |
552 | else c = flex_to_ascii[flex]; /* convert to ASCII */\r | |
553 | if (c >= 0) sta = fputc (c, uptr->fileref); /* valid? */\r | |
554 | else sta = fprintf (uptr->fileref, "#%02d", flex); /* no, encode */\r | |
555 | if (sta == EOF) { /* error? */\r | |
556 | perror ("Punch I/O error"); /* error? */\r | |
557 | clearerr (uptr->fileref);\r | |
558 | return SCPE_IOERR;\r | |
559 | }\r | |
560 | uptr->pos = uptr->pos + ((c >= 0)? 1: 3); /* incr position */\r | |
561 | return SCPE_OK;\r | |
562 | }\r | |
563 | \r | |
564 | /* Reset routines */\r | |
565 | \r | |
566 | t_stat tti_reset (DEVICE *dptr)\r | |
567 | {\r | |
568 | sim_activate (&tti_unit[0], tt_wait);\r | |
569 | sim_cancel (&tti_unit[1]);\r | |
570 | tti_buf = 0;\r | |
571 | tti_rdy = 0;\r | |
572 | return SCPE_OK;\r | |
573 | }\r | |
574 | \r | |
575 | t_stat tto_reset (DEVICE *dptr)\r | |
576 | {\r | |
577 | sim_cancel (&tto_unit[0]);\r | |
578 | tto_buf = 0;\r | |
579 | tto_uc = 0;\r | |
580 | return SCPE_OK;\r | |
581 | }\r | |
582 | \r | |
583 | t_stat ptr_reset (DEVICE *dptr)\r | |
584 | {\r | |
585 | sim_cancel (&ptr_unit);\r | |
586 | ptr_unit.buf = 0;\r | |
587 | ptr_rdy = 0;\r | |
588 | return SCPE_OK;\r | |
589 | }\r | |
590 | \r | |
591 | t_stat ptp_reset (DEVICE *dptr)\r | |
592 | {\r | |
593 | sim_cancel (&ptp_unit);\r | |
594 | ptp_unit.buf = 0;\r | |
595 | return SCPE_OK;\r | |
596 | }\r | |
597 | \r | |
598 | /* Attach paper tape unit */\r | |
599 | \r | |
600 | t_stat tap_attach (UNIT *uptr, char *cptr)\r | |
601 | {\r | |
602 | t_stat r;\r | |
603 | \r | |
604 | if ((r = attach_unit (uptr,cptr)) != SCPE_OK) return r;\r | |
605 | if ((sim_switches & SWMASK ('F')) ||\r | |
606 | ((uptr->flags & UNIT_FLEX_D) && !(sim_switches & SWMASK ('A'))))\r | |
607 | uptr->flags = uptr->flags | UNIT_FLEX;\r | |
608 | else uptr->flags = uptr->flags & ~UNIT_FLEX;\r | |
609 | return SCPE_OK;\r | |
610 | }\r | |
611 | \r | |
612 | /* Validate unit is attachable */\r | |
613 | \r | |
614 | t_stat tap_attable (UNIT *uptr, int32 val, char *cptr, void *desc)\r | |
615 | {\r | |
616 | if (uptr->flags & UNIT_ATTABLE) return SCPE_OK;\r | |
617 | return SCPE_NOFNC;\r | |
618 | }\r | |
619 | \r | |
620 | /* Typewriter reader start/stop */\r | |
621 | \r | |
622 | t_stat tti_rdrss (UNIT *uptr, int32 val, char *cptr, void *desc)\r | |
623 | {\r | |
624 | if (val) {\r | |
625 | if ((tti_unit[1].flags & UNIT_ATT) == 0) return SCPE_UNATT;\r | |
626 | sim_activate (&tti_unit[1], tt_wait);\r | |
627 | }\r | |
628 | else sim_cancel (&tti_unit[1]);\r | |
629 | return SCPE_OK;\r | |
630 | }\r | |
631 | \r | |
632 | /* Punch feed routine */\r | |
633 | \r | |
634 | t_stat punch_feed (UNIT *uptr, int32 val, char *cptr, void *desc)\r | |
635 | {\r | |
636 | int32 cnt;\r | |
637 | t_stat r;\r | |
638 | \r | |
639 | if ((uptr->flags & UNIT_ATT) == 0) return SCPE_UNATT;\r | |
640 | if (cptr) {\r | |
641 | cnt = (int32) get_uint (cptr, 10, 512, &r);\r | |
642 | if ((r != SCPE_OK) || (cnt == 0)) return SCPE_ARG;\r | |
643 | }\r | |
644 | else cnt = 10;\r | |
645 | while (cnt-- > 0) {\r | |
646 | r = write_punch (uptr, 0);\r | |
647 | if (r != SCPE_OK) return r;\r | |
648 | }\r | |
649 | return SCPE_OK;\r | |
650 | }\r | |
651 | \r | |
652 | /* Send start signal */\r | |
653 | \r | |
654 | t_stat send_start (UNIT *uptr, int32 val, char *cptr, void *desc)\r | |
655 | {\r | |
656 | if (inp_strt) inp_done = 1;\r | |
657 | else if (out_strt) out_done = 1;\r | |
658 | return SCPE_OK;\r | |
659 | }\r |