| 1 | /* s3_lp.c: IBM 1403 line printer simulator\r |
| 2 | \r |
| 3 | Copyright (c) 2001-2005, Charles E. Owen\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 Charles E. Owen 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 Charles E. Owen.\r |
| 25 | \r |
| 26 | lpt 1403 line printer\r |
| 27 | \r |
| 28 | 25-Apr-03 RMS Revised for extended file support\r |
| 29 | 08-Oct-02 RMS Added impossible function catcher\r |
| 30 | */\r |
| 31 | \r |
| 32 | #include "s3_defs.h"\r |
| 33 | \r |
| 34 | extern uint8 M[];\r |
| 35 | extern char bcd_to_ascii[64];\r |
| 36 | extern int32 iochk, ind[64];\r |
| 37 | int32 cct[CCT_LNT] = { 03 };\r |
| 38 | int32 cctlnt = 66, cctptr = 0, lines = 0, lflag = 0;\r |
| 39 | t_stat lpt_reset (DEVICE *dptr);\r |
| 40 | t_stat lpt_attach (UNIT *uptr, char *cptr);\r |
| 41 | t_stat write_line (int32 ilnt, int32 mod);\r |
| 42 | t_stat space (int32 lines, int32 lflag);\r |
| 43 | t_stat carriage_control (int32 action, int32 mod);\r |
| 44 | extern unsigned char ebcdic_to_ascii[256];\r |
| 45 | \r |
| 46 | #define UNIT_V_PCHAIN (UNIT_V_UF + 0)\r |
| 47 | #define UNIT_M_PCHAIN 03\r |
| 48 | #define M_UCS 00 /* Universal */\r |
| 49 | #define M_PCF 00 /* full */\r |
| 50 | #define M_PCA 01 /* business */\r |
| 51 | #define M_PCH 02 /* Fortran */\r |
| 52 | #define UNIT_PCHAIN (UNIT_M_PCHAIN << UNIT_V_PCHAIN)\r |
| 53 | #define UCS (M_UCS << UNIT_V_PCHAIN)\r |
| 54 | #define PCF (M_PCF << UNIT_V_PCHAIN)\r |
| 55 | #define PCA (M_PCA << UNIT_V_PCHAIN)\r |
| 56 | #define PCH (M_PCH << UNIT_V_PCHAIN)\r |
| 57 | #define GET_PCHAIN(x) (((x) >> UNIT_V_PCHAIN) & UNIT_M_PCHAIN)\r |
| 58 | #define CHP(ch,val) ((val) & (1 << (ch)))\r |
| 59 | \r |
| 60 | int32 LPDAR; /* Data Address */\r |
| 61 | int32 LPFLR; /* Forms Length */\r |
| 62 | int32 LPIAR; /* Image address */\r |
| 63 | int32 linectr; /* current line # */\r |
| 64 | int32 lpterror = 0;\r |
| 65 | int32 CC9 = 0;\r |
| 66 | int32 CC12 = 0;\r |
| 67 | \r |
| 68 | /* LPT data structures\r |
| 69 | \r |
| 70 | lpt_dev LPT device descriptor\r |
| 71 | lpt_unit LPT unit descriptor\r |
| 72 | lpt_reg LPT register list\r |
| 73 | */\r |
| 74 | \r |
| 75 | UNIT lpt_unit = { UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE, 0) };\r |
| 76 | \r |
| 77 | REG lpt_reg[] = {\r |
| 78 | { FLDATA (ERR, lpterror, 0) },\r |
| 79 | { HRDATA (LPDAR, LPDAR, 16) },\r |
| 80 | { HRDATA (LPFLR, LPFLR, 8) },\r |
| 81 | { HRDATA (LPIAR, LPIAR, 16) },\r |
| 82 | { DRDATA (LINECT, linectr, 8) },\r |
| 83 | { DRDATA (POS, lpt_unit.pos, T_ADDR_W), PV_LEFT },\r |
| 84 | { BRDATA (CCT, cct, 8, 32, CCT_LNT) },\r |
| 85 | { DRDATA (LINES, lines, 8), PV_LEFT },\r |
| 86 | { DRDATA (CCTP, cctptr, 8), PV_LEFT },\r |
| 87 | { DRDATA (CCTL, cctlnt, 8), REG_RO + PV_LEFT },\r |
| 88 | { GRDATA (CHAIN, lpt_unit.flags, 10, 2, UNIT_V_PCHAIN), REG_HRO },\r |
| 89 | { NULL }\r |
| 90 | };\r |
| 91 | \r |
| 92 | MTAB lpt_mod[] = {\r |
| 93 | { UNIT_PCHAIN, UCS, "UCS", "UCS", NULL },\r |
| 94 | { UNIT_PCHAIN, PCA, "A chain", "PCA", NULL },\r |
| 95 | { UNIT_PCHAIN, PCH, "H chain", "PCH", NULL },\r |
| 96 | { 0 }\r |
| 97 | };\r |
| 98 | \r |
| 99 | DEVICE lpt_dev = {\r |
| 100 | "LPT", &lpt_unit, lpt_reg, lpt_mod,\r |
| 101 | 1, 10, 31, 1, 8, 7,\r |
| 102 | NULL, NULL, &lpt_reset,\r |
| 103 | NULL, NULL, NULL\r |
| 104 | };\r |
| 105 | \r |
| 106 | \r |
| 107 | /* -------------------------------------------------------------------- */\r |
| 108 | \r |
| 109 | /* Printer: master routine */\r |
| 110 | \r |
| 111 | int32 lpt (int32 op, int32 m, int32 n, int32 data)\r |
| 112 | {\r |
| 113 | int32 iodata;\r |
| 114 | switch (op) {\r |
| 115 | case 0: /* SIO 1403 */\r |
| 116 | iodata = 0;\r |
| 117 | printf("\0");\r |
| 118 | switch (n) {\r |
| 119 | case 0x00: /* Spacing only */\r |
| 120 | if (data > 0 && data < 4)\r |
| 121 | iodata = carriage_control(2, data);\r |
| 122 | break;\r |
| 123 | case 0x02: /* Print & space */\r |
| 124 | iodata = write_line(0, 0);\r |
| 125 | if (data > 3) data = 0;\r |
| 126 | if (iodata == SCPE_OK)\r |
| 127 | iodata = carriage_control(2, data);\r |
| 128 | break;\r |
| 129 | case 0x04: /* Skip only */\r |
| 130 | iodata = carriage_control(4, data);\r |
| 131 | break;\r |
| 132 | case 0x06: /* Print and skip */\r |
| 133 | iodata = write_line(0, 0);\r |
| 134 | if (iodata == SCPE_OK)\r |
| 135 | iodata = carriage_control(4, data);\r |
| 136 | break;\r |
| 137 | default: \r |
| 138 | return STOP_INVDEV;\r |
| 139 | } \r |
| 140 | return iodata;\r |
| 141 | case 1: /* LIO 1403 */\r |
| 142 | switch (n) {\r |
| 143 | case 0x00: /* LPFLR */\r |
| 144 | LPFLR = (data >> 8) & 0xff;\r |
| 145 | break;\r |
| 146 | case 0x04:\r |
| 147 | LPIAR = data & 0xffff;\r |
| 148 | break;\r |
| 149 | case 0x06:\r |
| 150 | LPDAR = data & 0xffff;\r |
| 151 | break;\r |
| 152 | default:\r |
| 153 | return STOP_INVDEV;\r |
| 154 | } \r |
| 155 | return SCPE_OK;\r |
| 156 | case 2: /* TIO 1403 */\r |
| 157 | iodata = 0;\r |
| 158 | switch (n) {\r |
| 159 | case 0x00: /* Not ready/check */\r |
| 160 | if (lpterror)\r |
| 161 | iodata = 1;\r |
| 162 | if ((lpt_unit.flags & UNIT_ATT) == 0) \r |
| 163 | iodata = 1; \r |
| 164 | break;\r |
| 165 | case 0x02: /* Buffer Busy */\r |
| 166 | iodata = 0;\r |
| 167 | break;\r |
| 168 | case 0x04: /* Carriage Busy */\r |
| 169 | iodata = 0;\r |
| 170 | break;\r |
| 171 | case 0x06: /* Printer busy */\r |
| 172 | iodata = 0;\r |
| 173 | break;\r |
| 174 | default:\r |
| 175 | return (STOP_INVDEV << 16); \r |
| 176 | } \r |
| 177 | return ((SCPE_OK << 16) | iodata); \r |
| 178 | case 3: /* SNS 1403 */\r |
| 179 | switch (n) {\r |
| 180 | case 0x00: /* Line count */\r |
| 181 | iodata = (linectr << 8);\r |
| 182 | break;\r |
| 183 | case 0x02: /* Timing data */\r |
| 184 | iodata = 0;\r |
| 185 | break;\r |
| 186 | case 0x03: /* Check data */\r |
| 187 | iodata = 0;\r |
| 188 | break;\r |
| 189 | case 0x04: /* LPIAR */\r |
| 190 | iodata = LPIAR;\r |
| 191 | break;\r |
| 192 | case 0x06: /* LPDAR */\r |
| 193 | iodata = LPDAR; \r |
| 194 | break;\r |
| 195 | default:\r |
| 196 | return (STOP_INVDEV << 16);\r |
| 197 | } \r |
| 198 | return ((SCPE_OK << 16) | iodata); \r |
| 199 | case 4: /* APL 1403 */\r |
| 200 | iodata = 0;\r |
| 201 | return ((SCPE_OK << 16) | iodata); \r |
| 202 | default:\r |
| 203 | break;\r |
| 204 | } \r |
| 205 | printf (">>LPT non-existent function %d\n", op);\r |
| 206 | return SCPE_OK; \r |
| 207 | }\r |
| 208 | \r |
| 209 | \r |
| 210 | /* Print routine\r |
| 211 | \r |
| 212 | Modifiers have been checked by the caller\r |
| 213 | S = suppress automatic newline\r |
| 214 | */\r |
| 215 | \r |
| 216 | t_stat write_line (int32 ilnt, int32 mod)\r |
| 217 | {\r |
| 218 | int32 i, t, lc;\r |
| 219 | static char lbuf[LPT_WIDTH + 1]; /* + null */\r |
| 220 | \r |
| 221 | if ((lpt_unit.flags & UNIT_ATT) == 0)\r |
| 222 | return SCPE_UNATT; \r |
| 223 | \r |
| 224 | lpterror = 0;\r |
| 225 | lc = LPDAR; /* clear error */\r |
| 226 | for (i = 0; i < LPT_WIDTH; i++) { /* convert print buf */\r |
| 227 | t = M[lc];\r |
| 228 | lbuf[i] = ebcdic_to_ascii[t & 0xff];\r |
| 229 | M[lc] = 0x40; /* HJS MOD */\r |
| 230 | lc++;\r |
| 231 | }\r |
| 232 | for (i = LPT_WIDTH - 1; (i >= 0) && (lbuf[i] == ' '); i--) lbuf[i] = 0;\r |
| 233 | fputs (lbuf, lpt_unit.fileref); /* write line */\r |
| 234 | if (lines) space (lines, lflag); /* cc action? do it */\r |
| 235 | else if (mod == 0) space (1, FALSE); /* default? 1 line */\r |
| 236 | else {\r |
| 237 | fputc ('\r', lpt_unit.fileref); /* sup -> overprint */\r |
| 238 | lpt_unit.pos = ftell (lpt_unit.fileref); /* update position */\r |
| 239 | }\r |
| 240 | lines = lflag = 0; /* clear cc action */\r |
| 241 | if (ferror (lpt_unit.fileref)) { /* error? */\r |
| 242 | perror ("Line printer I/O error");\r |
| 243 | clearerr (lpt_unit.fileref);\r |
| 244 | lpterror = 1;\r |
| 245 | }\r |
| 246 | return SCPE_OK;\r |
| 247 | }\r |
| 248 | \r |
| 249 | /* Carriage control routine\r |
| 250 | \r |
| 251 | Parameters:\r |
| 252 | action = 00, skip to channel now\r |
| 253 | = 01, space lines after\r |
| 254 | = 02, space lines now\r |
| 255 | = 03, skip to channel after\r |
| 256 | = 04, skip to line number\r |
| 257 | mod = number of lines or channel number or line number\r |
| 258 | */\r |
| 259 | \r |
| 260 | t_stat carriage_control (int32 action, int32 mod)\r |
| 261 | {\r |
| 262 | int32 i;\r |
| 263 | \r |
| 264 | if ((lpt_unit.flags & UNIT_ATT) == 0)\r |
| 265 | return SCPE_UNATT; \r |
| 266 | \r |
| 267 | switch (action) {\r |
| 268 | case 0: /* to channel now */\r |
| 269 | if ((mod == 0) || (mod > 12) || CHP (mod, cct[cctptr])) return SCPE_OK;\r |
| 270 | for (i = 1; i < cctlnt + 1; i++) { /* sweep thru cct */\r |
| 271 | if (CHP (mod, cct[(cctptr + i) % cctlnt]))\r |
| 272 | return space (i, TRUE);\r |
| 273 | }\r |
| 274 | return STOP_INVDEV; /* runaway channel */\r |
| 275 | case 1: /* space after */\r |
| 276 | if (mod <= 3) {\r |
| 277 | lines = mod; /* save # lines */\r |
| 278 | lflag = FALSE; /* flag spacing */\r |
| 279 | CC9 = CC12 = 0;\r |
| 280 | }\r |
| 281 | return SCPE_OK;\r |
| 282 | case 2: /* space now */\r |
| 283 | if (mod <= 3) return space (mod, FALSE);\r |
| 284 | return SCPE_OK;\r |
| 285 | case 3: /* to channel after */\r |
| 286 | if ((mod == 0) || (mod > 12)) return SCPE_OK; /* check channel */\r |
| 287 | CC9 = CC12 = 0;\r |
| 288 | for (i = 1; i < cctlnt + 1; i++) { /* sweep thru cct */\r |
| 289 | if (CHP (mod, cct[(cctptr + i) % cctlnt])) {\r |
| 290 | lines = i; /* save # lines */\r |
| 291 | lflag = TRUE; /* flag skipping */\r |
| 292 | return SCPE_OK;\r |
| 293 | }\r |
| 294 | }\r |
| 295 | return STOP_INVDEV; \r |
| 296 | case 4: /* To line # */\r |
| 297 | if (mod < 2) {\r |
| 298 | fputs ("\n\f", lpt_unit.fileref); /* nl, ff */\r |
| 299 | linectr = 1;\r |
| 300 | } else {\r |
| 301 | if (mod <= linectr) {\r |
| 302 | fputs ("\n\f", lpt_unit.fileref);\r |
| 303 | linectr = 1;\r |
| 304 | } \r |
| 305 | while (1) {\r |
| 306 | if (linectr == mod)\r |
| 307 | break;\r |
| 308 | space(1, 0);\r |
| 309 | } \r |
| 310 | } \r |
| 311 | return SCPE_OK;\r |
| 312 | } \r |
| 313 | return SCPE_OK;\r |
| 314 | }\r |
| 315 | \r |
| 316 | /* Space routine - space or skip n lines\r |
| 317 | \r |
| 318 | Inputs:\r |
| 319 | count = number of lines to space or skip\r |
| 320 | sflag = skip (TRUE) or space (FALSE)\r |
| 321 | */\r |
| 322 | \r |
| 323 | t_stat space (int32 count, int32 sflag)\r |
| 324 | {\r |
| 325 | int32 i;\r |
| 326 | \r |
| 327 | if ((lpt_unit.flags & UNIT_ATT) == 0) return SCPE_UNATT;\r |
| 328 | cctptr = (cctptr + count) % cctlnt; /* adv cct, mod lnt */\r |
| 329 | if (sflag && CHP (0, cct[cctptr])) { /* skip, top of form? */\r |
| 330 | fputs ("\n\f", lpt_unit.fileref); /* nl, ff */\r |
| 331 | linectr = 1;\r |
| 332 | } else {\r |
| 333 | for (i = 0; i < count; i++) fputc ('\n', lpt_unit.fileref);\r |
| 334 | }\r |
| 335 | lpt_unit.pos = ftell (lpt_unit.fileref); /* update position */\r |
| 336 | CC9 = CHP (9, cct[cctptr]) != 0; /* set indicators */\r |
| 337 | CC12 = CHP (12, cct[cctptr]) != 0;\r |
| 338 | linectr += count;\r |
| 339 | if (linectr > LPFLR) \r |
| 340 | linectr -= LPFLR;\r |
| 341 | return SCPE_OK;\r |
| 342 | }\r |
| 343 | \r |
| 344 | /* Reset routine */\r |
| 345 | \r |
| 346 | t_stat lpt_reset (DEVICE *dptr)\r |
| 347 | {\r |
| 348 | cctptr = 0; /* clear cct ptr */\r |
| 349 | lines = linectr = lflag = 0; /* no cc action */\r |
| 350 | lpterror = 0;\r |
| 351 | return SCPE_OK;\r |
| 352 | }\r |
| 353 | \r |
| 354 | /* Attach routine */\r |
| 355 | \r |
| 356 | t_stat lpt_attach (UNIT *uptr, char *cptr)\r |
| 357 | {\r |
| 358 | cctptr = 0; /* clear cct ptr */\r |
| 359 | lines = 0; /* no cc action */\r |
| 360 | lpterror = 0;\r |
| 361 | linectr = 0;\r |
| 362 | return attach_unit (uptr, cptr);\r |
| 363 | }\r |