| 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 |