| 1 | /* i1620_lp.c: IBM 1443 line printer simulator\r |
| 2 | \r |
| 3 | Copyright (c) 2002-2007, 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 | lpt 1443 line printer\r |
| 27 | \r |
| 28 | 19-Jan-07 RMS Added UNIT_TEXT flag\r |
| 29 | 21-Sep-05 RMS Revised translation tables for 7094/1401 compatibility\r |
| 30 | 29-Dec-03 RMS Fixed bug in scheduling\r |
| 31 | 25-Apr-03 RMS Revised for extended file support\r |
| 32 | */\r |
| 33 | \r |
| 34 | #include "i1620_defs.h"\r |
| 35 | \r |
| 36 | #define LPT_BSIZE 197 /* buffer size */\r |
| 37 | \r |
| 38 | #define K_IMM 0x10 /* control now */\r |
| 39 | #define K_LIN 0x20 /* spc lines */\r |
| 40 | #define K_CH10 0x40 /* chan 10 */\r |
| 41 | #define K_LCNT 0x03 /* line count */\r |
| 42 | #define K_CHAN 0x0F /* channel */\r |
| 43 | \r |
| 44 | extern uint8 M[MAXMEMSIZE];\r |
| 45 | extern uint8 ind[NUM_IND];\r |
| 46 | extern UNIT cpu_unit;\r |
| 47 | extern uint32 io_stop;\r |
| 48 | \r |
| 49 | uint32 cct[CCT_LNT] = { 03 }; /* car ctrl tape */\r |
| 50 | int32 cct_lnt = 66, cct_ptr = 0; /* cct len, ptr */\r |
| 51 | int32 lpt_bptr = 0; /* lpt buf ptr */\r |
| 52 | char lpt_buf[LPT_BSIZE + 1]; /* lpt buf */\r |
| 53 | int32 lpt_savctrl = 0; /* saved spc ctrl */\r |
| 54 | \r |
| 55 | t_stat lpt_svc (UNIT *uptr);\r |
| 56 | t_stat lpt_reset (DEVICE *dptr);\r |
| 57 | t_stat lpt_attach (UNIT *uptr, char *cptr);\r |
| 58 | void lpt_buf_init (void);\r |
| 59 | t_stat lpt_num (uint32 pa, uint32 len, uint32 f1);\r |
| 60 | t_stat lpt_print (void);\r |
| 61 | t_stat lpt_space (int32 lines, int32 lflag);\r |
| 62 | \r |
| 63 | #define CHP(ch,val) ((val) & (1 << (ch)))\r |
| 64 | \r |
| 65 | /* LPT data structures\r |
| 66 | \r |
| 67 | lpt_dev LPT device descriptor\r |
| 68 | lpt_unit LPT unit descriptor\r |
| 69 | lpt_reg LPT register list\r |
| 70 | */\r |
| 71 | \r |
| 72 | UNIT lpt_unit = {\r |
| 73 | UDATA (&lpt_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 50)\r |
| 74 | };\r |
| 75 | \r |
| 76 | REG lpt_reg[] = {\r |
| 77 | { BRDATA (LBUF, lpt_buf, 8, 8, LPT_BSIZE + 1) },\r |
| 78 | { DRDATA (BPTR, lpt_bptr, 8) },\r |
| 79 | { HRDATA (PCTL, lpt_savctrl, 8) },\r |
| 80 | { FLDATA (PRCHK, ind[IN_PRCHK], 0) },\r |
| 81 | { FLDATA (PRCH9, ind[IN_PRCH9], 0) },\r |
| 82 | { FLDATA (PRCH12, ind[IN_PRCH12], 0) },\r |
| 83 | { FLDATA (PRBSY, ind[IN_PRBSY], 0) },\r |
| 84 | { DRDATA (POS, lpt_unit.pos, T_ADDR_W), PV_LEFT },\r |
| 85 | { BRDATA (CCT, cct, 8, 32, CCT_LNT) },\r |
| 86 | { DRDATA (CCTP, cct_ptr, 8), PV_LEFT },\r |
| 87 | { DRDATA (CCTL, cct_lnt, 8), REG_RO + PV_LEFT },\r |
| 88 | { NULL }\r |
| 89 | };\r |
| 90 | \r |
| 91 | DEVICE lpt_dev = {\r |
| 92 | "LPT", &lpt_unit, lpt_reg, NULL,\r |
| 93 | 1, 10, 31, 1, 8, 7,\r |
| 94 | NULL, NULL, &lpt_reset,\r |
| 95 | NULL, &lpt_attach, NULL\r |
| 96 | };\r |
| 97 | \r |
| 98 | /* Data tables */\r |
| 99 | \r |
| 100 | /* Numeric (flag plus digit) to lineprinter (ASCII) */\r |
| 101 | \r |
| 102 | const char num_to_lpt[32] = {\r |
| 103 | '0', '1', '2', '3', '4', '5', '6', '7',\r |
| 104 | '8', '9', '|', ' ', '@', ':', ' ', 'G',\r |
| 105 | '-', 'J', 'K', 'L', 'M', 'N', 'O', 'P',\r |
| 106 | 'Q', 'R', 'W', ' ', '*', ' ', -1, 'X'\r |
| 107 | };\r |
| 108 | \r |
| 109 | /* Alphameric (digit pair) to lineprinter (ASCII) */\r |
| 110 | \r |
| 111 | const char alp_to_lpt[256] = {\r |
| 112 | ' ', -1, '?', '.', ')', -1, -1, -1, /* 00 */\r |
| 113 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 114 | '+', -1, '!', '$', '*', ' ', -1, -1, /* 10 */\r |
| 115 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 116 | '-', '/', '|', ',', '(', -1, -1, -1, /* 20 */\r |
| 117 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 118 | -1, -1, '0', '=', '@', ':', -1, -1, /* 30 */\r |
| 119 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 120 | -1, 'A', 'B', 'C', 'D', 'E', 'F', 'G', /* 40 */\r |
| 121 | 'H', 'I', -1, -1, -1, -1, -1, -1,\r |
| 122 | '-', 'J', 'K', 'L', 'M', 'N', 'O', 'P', /* 50 */\r |
| 123 | 'Q', 'R', -1, -1, -1, -1, -1, -1,\r |
| 124 | -1, '/', 'S', 'T', 'U', 'V', 'W', 'X', /* 60 */\r |
| 125 | 'Y', 'Z', -1, -1, -1, -1, -1, -1,\r |
| 126 | '0', '1', '2', '3', '4', '5', '6', '7', /* 70 */\r |
| 127 | '8', '9', -1, -1, -1, -1, -1, -1,\r |
| 128 | -1, -1, -1, -1, -1, -1, -1, -1, /* 80 */\r |
| 129 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 130 | -1, -1, -1, -1, -1, -1, -1, -1, /* 90 */\r |
| 131 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 132 | -1, -1, -1, -1, -1, -1, -1, -1, /* A0 */\r |
| 133 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 134 | -1, -1, -1, -1, -1, -1, -1, -1, /* B0 */\r |
| 135 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 136 | -1, -1, -1, -1, -1, -1, -1, -1, /* C0 */\r |
| 137 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 138 | -1, -1, -1, -1, -1, -1, -1, -1, /* D0 */\r |
| 139 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 140 | -1, -1, -1, -1, -1, -1, -1, -1, /* E0 */\r |
| 141 | -1, -1, -1, -1, -1, -1, -1, -1,\r |
| 142 | -1, -1, -1, -1, -1, -1, -1, -1, /* F0 */\r |
| 143 | -1, -1, -1, -1, -1, -1, -1, -1\r |
| 144 | };\r |
| 145 | \r |
| 146 | /* Line printer IO routine\r |
| 147 | \r |
| 148 | - Hard errors halt the system.\r |
| 149 | - Invalid characters print a blank, set the WRCHK and PRCHK\r |
| 150 | flags, and halt the system if IO stop is set.\r |
| 151 | */\r |
| 152 | \r |
| 153 | t_stat lpt (uint32 op, uint32 pa, uint32 f0, uint32 f1)\r |
| 154 | {\r |
| 155 | int8 lpc;\r |
| 156 | uint8 z, d;\r |
| 157 | t_stat r, sta;\r |
| 158 | \r |
| 159 | sta = SCPE_OK;\r |
| 160 | sim_cancel (&lpt_unit); /* "stall" until */\r |
| 161 | ind[IN_PRBSY] = 0; /* printer free */\r |
| 162 | \r |
| 163 | switch (op) { /* decode op */\r |
| 164 | \r |
| 165 | case OP_K: /* control */\r |
| 166 | lpt_savctrl = (f0 << 4) | f1; /* form ctrl */\r |
| 167 | if (lpt_savctrl & K_IMM) return lpt_print (); /* immediate? */\r |
| 168 | break;\r |
| 169 | \r |
| 170 | case OP_DN:\r |
| 171 | return lpt_num (pa, 20000 - (pa % 20000), f1); /* dump numeric */\r |
| 172 | \r |
| 173 | case OP_WN:\r |
| 174 | return lpt_num (pa, 0, f1); /* write numeric */\r |
| 175 | \r |
| 176 | case OP_WA:\r |
| 177 | for ( ; lpt_bptr < LPT_BSIZE; lpt_bptr++) { /* only fill buf */\r |
| 178 | d = M[pa] & DIGIT; /* get digit */\r |
| 179 | z = M[pa - 1] & DIGIT; /* get zone */\r |
| 180 | if ((d & REC_MARK) == REC_MARK) break; /* 8-2 char? */\r |
| 181 | lpc = alp_to_lpt[(z << 4) | d]; /* translate pair */\r |
| 182 | if (lpc < 0) { /* bad char? */\r |
| 183 | ind[IN_WRCHK] = ind[IN_PRCHK] = 1; /* wr chk */\r |
| 184 | if (io_stop) sta = STOP_INVCHR; /* set return status */\r |
| 185 | }\r |
| 186 | lpt_buf[lpt_bptr] = lpc & 0x7F; /* fill buffer */\r |
| 187 | pa = ADDR_A (pa, 2); /* incr mem addr */\r |
| 188 | }\r |
| 189 | if ((f1 & 1) == 0) { ; /* print now? */\r |
| 190 | r = lpt_print (); /* print line */\r |
| 191 | if (r != SCPE_OK) return r;\r |
| 192 | }\r |
| 193 | return sta;\r |
| 194 | \r |
| 195 | default: /* invalid function */\r |
| 196 | return STOP_INVFNC;\r |
| 197 | }\r |
| 198 | \r |
| 199 | return SCPE_OK;\r |
| 200 | }\r |
| 201 | \r |
| 202 | /* Print numeric */\r |
| 203 | \r |
| 204 | t_stat lpt_num (uint32 pa, uint32 len, uint32 f1)\r |
| 205 | {\r |
| 206 | uint32 end;\r |
| 207 | uint8 d;\r |
| 208 | int8 lpc;\r |
| 209 | t_stat r, sta;\r |
| 210 | \r |
| 211 | sta = SCPE_OK;\r |
| 212 | end = pa + len;\r |
| 213 | for ( ; lpt_bptr < LPT_BSIZE; lpt_bptr++) { /* only fill buf */\r |
| 214 | d = M[pa]; /* get digit */\r |
| 215 | if (len? (pa >= end): /* end reached? */\r |
| 216 | ((d & REC_MARK) == REC_MARK)) break;\r |
| 217 | lpc = num_to_lpt[d]; /* translate */\r |
| 218 | if (lpc < 0) { /* bad char? */\r |
| 219 | ind[IN_WRCHK] = ind[IN_PRCHK] = 1; /* wr chk */\r |
| 220 | if (io_stop) sta = STOP_INVCHR; /* set return status */\r |
| 221 | }\r |
| 222 | lpt_buf[lpt_bptr++] = lpc & 0x7F; /* fill buffer */\r |
| 223 | PP (pa); /* incr mem addr */\r |
| 224 | }\r |
| 225 | if ((f1 & 1) == 0) { /* print now? */\r |
| 226 | r = lpt_print (); /* print line */\r |
| 227 | if (r != SCPE_OK) return r;\r |
| 228 | }\r |
| 229 | return sta;\r |
| 230 | }\r |
| 231 | \r |
| 232 | /* Print and space */\r |
| 233 | \r |
| 234 | t_stat lpt_print (void)\r |
| 235 | {\r |
| 236 | int32 i, chan, ctrl = lpt_savctrl;\r |
| 237 | \r |
| 238 | if ((lpt_unit.flags & UNIT_ATT) == 0) { /* not attached? */\r |
| 239 | ind[IN_PRCHK] = ind[IN_WRCHK] = 1; /* wr, pri check */\r |
| 240 | return SCPE_UNATT;\r |
| 241 | }\r |
| 242 | \r |
| 243 | ind[IN_PRBSY] = 1; /* print busy */\r |
| 244 | sim_activate (&lpt_unit, lpt_unit.wait); /* start timer */\r |
| 245 | \r |
| 246 | for (i = LPT_WIDTH; i <= LPT_BSIZE; i++) /* clear unprintable */\r |
| 247 | lpt_buf[i] = ' ';\r |
| 248 | while ((lpt_bptr > 0) && (lpt_buf[lpt_bptr - 1] == ' '))\r |
| 249 | lpt_buf[--lpt_bptr] = 0; /* trim buffer */\r |
| 250 | if (lpt_bptr) { /* any line? */\r |
| 251 | fputs (lpt_buf, lpt_unit.fileref); /* print */\r |
| 252 | lpt_unit.pos = ftell (lpt_unit.fileref); /* update pos */\r |
| 253 | lpt_buf_init (); /* reinit buf */\r |
| 254 | if (ferror (lpt_unit.fileref)) { /* error? */\r |
| 255 | ind[IN_PRCHK] = ind[IN_WRCHK] = 1; /* wr, pri check */\r |
| 256 | perror ("LPT I/O error");\r |
| 257 | clearerr (lpt_unit.fileref);\r |
| 258 | return SCPE_IOERR;\r |
| 259 | }\r |
| 260 | }\r |
| 261 | \r |
| 262 | lpt_savctrl = 0x61; /* reset ctrl */\r |
| 263 | if ((ctrl & K_LIN) == ((ctrl & K_IMM)? 0: K_LIN)) /* space lines? */\r |
| 264 | return lpt_space (ctrl & K_LCNT, FALSE);\r |
| 265 | chan = lpt_savctrl & K_CHAN; /* basic chan */\r |
| 266 | if (lpt_savctrl & K_CH10) { /* chan 10-12? */\r |
| 267 | if (chan == 0) chan = 10;\r |
| 268 | else if (chan == 3) chan = 11;\r |
| 269 | else if (chan == 4) chan = 12;\r |
| 270 | else chan = 0;\r |
| 271 | }\r |
| 272 | if ((chan == 0) || (chan > 12)) return STOP_INVFNC;\r |
| 273 | for (i = 1; i < cct_lnt + 1; i++) { /* sweep thru cct */\r |
| 274 | if (CHP (chan, cct[(cct_ptr + i) % cct_lnt]))\r |
| 275 | return lpt_space (i, TRUE);\r |
| 276 | }\r |
| 277 | return STOP_CCT; /* runaway channel */\r |
| 278 | }\r |
| 279 | \r |
| 280 | /* Space routine - space or skip n lines\r |
| 281 | \r |
| 282 | Inputs:\r |
| 283 | count = number of lines to space or skip\r |
| 284 | sflag = skip (TRUE) or space (FALSE)\r |
| 285 | */\r |
| 286 | \r |
| 287 | t_stat lpt_space (int32 count, int32 sflag)\r |
| 288 | {\r |
| 289 | int32 i;\r |
| 290 | \r |
| 291 | cct_ptr = (cct_ptr + count) % cct_lnt; /* adv cct, mod lnt */\r |
| 292 | if (sflag && CHP (0, cct[cct_ptr])) /* skip, top of form? */\r |
| 293 | fputs ("\n\f", lpt_unit.fileref); /* nl, ff */\r |
| 294 | else {\r |
| 295 | for (i = 0; i < count; i++) /* count lines */\r |
| 296 | fputc ('\n', lpt_unit.fileref);\r |
| 297 | }\r |
| 298 | lpt_unit.pos = ftell (lpt_unit.fileref); /* update position */\r |
| 299 | ind[IN_PRCH9] = CHP (9, cct[cct_ptr]) != 0; /* set indicators */\r |
| 300 | ind[IN_PRCH12] = CHP (12, cct[cct_ptr]) != 0;\r |
| 301 | if (ferror (lpt_unit.fileref)) { /* error? */\r |
| 302 | ind[IN_PRCHK] = ind[IN_WRCHK] = 1; /* wr, pri check */\r |
| 303 | perror ("LPT I/O error");\r |
| 304 | clearerr (lpt_unit.fileref);\r |
| 305 | return SCPE_IOERR;\r |
| 306 | }\r |
| 307 | return SCPE_OK;\r |
| 308 | }\r |
| 309 | \r |
| 310 | /* Unit service - clear printer busy */\r |
| 311 | \r |
| 312 | t_stat lpt_svc (UNIT *uptr)\r |
| 313 | {\r |
| 314 | ind[IN_PRBSY] = 0;\r |
| 315 | return SCPE_OK;\r |
| 316 | }\r |
| 317 | \r |
| 318 | /* Initialize lpt buffer */\r |
| 319 | \r |
| 320 | void lpt_buf_init (void)\r |
| 321 | {\r |
| 322 | int32 i;\r |
| 323 | \r |
| 324 | lpt_bptr = 0;\r |
| 325 | for (i = 0; i < LPT_WIDTH + 1; i++) lpt_buf[i] = 0;\r |
| 326 | return;\r |
| 327 | }\r |
| 328 | \r |
| 329 | /* Reset routine */\r |
| 330 | \r |
| 331 | t_stat lpt_reset (DEVICE *dptr)\r |
| 332 | {\r |
| 333 | lpt_buf_init (); /* clear buffer */\r |
| 334 | cct_ptr = 0; /* clear cct ptr */\r |
| 335 | lpt_savctrl = 0x61; /* clear cct action */\r |
| 336 | ind[IN_PRCHK] = ind[IN_PRBSY] = 0; /* clear indicators */\r |
| 337 | ind[IN_PRCH9] = ind[IN_PRCH12] = 0;\r |
| 338 | return SCPE_OK;\r |
| 339 | }\r |
| 340 | \r |
| 341 | /* Attach routine */\r |
| 342 | \r |
| 343 | t_stat lpt_attach (UNIT *uptr, char *cptr)\r |
| 344 | {\r |
| 345 | lpt_reset (&lpt_dev);\r |
| 346 | return attach_unit (uptr, cptr);\r |
| 347 | }\r |