| 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 |