| 1 | /* i1401_cd.c: IBM 1402 card reader/punch\r |
| 2 | \r |
| 3 | Copyright (c) 1993-2007, 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 | cdr card reader\r |
| 27 | cdp card punch\r |
| 28 | stack stackers (5 units)\r |
| 29 | 0 normal\r |
| 30 | 1 1\r |
| 31 | 2 2/8\r |
| 32 | 3 unused\r |
| 33 | 4 4\r |
| 34 | \r |
| 35 | Cards are represented as ASCII text streams terminated by newlines.\r |
| 36 | This allows cards to be created and edited as normal files.\r |
| 37 | \r |
| 38 | 28-Jun-07 RMS Added support for SS overlap modifiers\r |
| 39 | 19-Jan-07 RMS Added UNIT_TEXT flag\r |
| 40 | 20-Sep-05 RMS Revised for new code tables, compatible colbinary treatment\r |
| 41 | 30-Aug-05 RMS Fixed read, punch to ignore modifier on 1,4 char inst\r |
| 42 | (reported by Van Snyder)\r |
| 43 | 14-Nov-04 WVS Added column binary support\r |
| 44 | 25-Apr-03 RMS Revised for extended file support\r |
| 45 | 30-May-02 RMS Widened POS to 32b\r |
| 46 | 30-Jan-02 RMS New zero footprint card bootstrap from Van Snyder\r |
| 47 | 29-Nov-01 RMS Added read only unit support\r |
| 48 | 13-Apr-01 RMS Revised for register arrays\r |
| 49 | */\r |
| 50 | \r |
| 51 | #include "i1401_defs.h"\r |
| 52 | #include <ctype.h>\r |
| 53 | \r |
| 54 | #define UNIT_V_PCH (UNIT_V_UF + 0) /* output conv */\r |
| 55 | #define UNIT_PCH (1 << UNIT_V_PCH)\r |
| 56 | \r |
| 57 | extern uint8 M[];\r |
| 58 | extern int32 ind[64], ssa, iochk;\r |
| 59 | extern int32 conv_old;\r |
| 60 | \r |
| 61 | int32 s1sel, s2sel, s4sel, s8sel;\r |
| 62 | char rbuf[2 * CBUFSIZE]; /* > CDR_WIDTH */\r |
| 63 | t_stat cdr_svc (UNIT *uptr);\r |
| 64 | t_stat cdr_boot (int32 unitno, DEVICE *dptr);\r |
| 65 | t_stat cdr_attach (UNIT *uptr, char *cptr);\r |
| 66 | t_stat cd_reset (DEVICE *dptr);\r |
| 67 | int32 bcd2asc (int32 c, UNIT *uptr);\r |
| 68 | char colbin_to_bcd (uint32 cb);\r |
| 69 | \r |
| 70 | /* Card reader data structures\r |
| 71 | \r |
| 72 | cdr_dev CDR descriptor\r |
| 73 | cdr_unit CDR unit descriptor\r |
| 74 | cdr_reg CDR register list\r |
| 75 | */\r |
| 76 | \r |
| 77 | UNIT cdr_unit = {\r |
| 78 | UDATA (&cdr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE+UNIT_TEXT, 0), 100\r |
| 79 | };\r |
| 80 | \r |
| 81 | REG cdr_reg[] = {\r |
| 82 | { FLDATA (LAST, ind[IN_LST], 0) },\r |
| 83 | { FLDATA (ERR, ind[IN_READ], 0) },\r |
| 84 | { FLDATA (S1, s1sel, 0) },\r |
| 85 | { FLDATA (S2, s2sel, 0) },\r |
| 86 | { DRDATA (POS, cdr_unit.pos, T_ADDR_W), PV_LEFT },\r |
| 87 | { DRDATA (TIME, cdr_unit.wait, 24), PV_LEFT },\r |
| 88 | { BRDATA (BUF, rbuf, 8, 8, CDR_WIDTH) },\r |
| 89 | { NULL }\r |
| 90 | };\r |
| 91 | \r |
| 92 | DEVICE cdr_dev = {\r |
| 93 | "CDR", &cdr_unit, cdr_reg, NULL,\r |
| 94 | 1, 10, 31, 1, 8, 7,\r |
| 95 | NULL, NULL, &cd_reset,\r |
| 96 | &cdr_boot, &cdr_attach, NULL\r |
| 97 | };\r |
| 98 | \r |
| 99 | /* CDP data structures\r |
| 100 | \r |
| 101 | cdp_dev CDP device descriptor\r |
| 102 | cdp_unit CDP unit descriptor\r |
| 103 | cdp_reg CDP register list\r |
| 104 | */\r |
| 105 | \r |
| 106 | UNIT cdp_unit = {\r |
| 107 | UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0)\r |
| 108 | };\r |
| 109 | \r |
| 110 | REG cdp_reg[] = {\r |
| 111 | { FLDATA (ERR, ind[IN_PNCH], 0) },\r |
| 112 | { FLDATA (S4, s4sel, 0) },\r |
| 113 | { FLDATA (S8, s8sel, 0) },\r |
| 114 | { DRDATA (POS, cdp_unit.pos, T_ADDR_W), PV_LEFT },\r |
| 115 | { NULL }\r |
| 116 | };\r |
| 117 | \r |
| 118 | MTAB cdp_mod[] = {\r |
| 119 | { UNIT_PCH, 0, "business set", "BUSINESS" },\r |
| 120 | { UNIT_PCH, UNIT_PCH, "Fortran set", "FORTRAN" },\r |
| 121 | { 0 }\r |
| 122 | };\r |
| 123 | \r |
| 124 | DEVICE cdp_dev = {\r |
| 125 | "CDP", &cdp_unit, cdp_reg, cdp_mod,\r |
| 126 | 1, 10, 31, 1, 8, 7,\r |
| 127 | NULL, NULL, &cd_reset,\r |
| 128 | NULL, NULL, NULL\r |
| 129 | };\r |
| 130 | \r |
| 131 | /* Stacker data structures\r |
| 132 | \r |
| 133 | stack_dev STACK device descriptor\r |
| 134 | stack_unit STACK unit descriptors\r |
| 135 | stack_reg STACK register list\r |
| 136 | */\r |
| 137 | \r |
| 138 | UNIT stack_unit[] = {\r |
| 139 | { UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0) },\r |
| 140 | { UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0) },\r |
| 141 | { UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0) },\r |
| 142 | { UDATA (NULL, UNIT_DIS, 0) }, /* unused */\r |
| 143 | { UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0) }\r |
| 144 | };\r |
| 145 | \r |
| 146 | REG stack_reg[] = {\r |
| 147 | { DRDATA (POS0, stack_unit[0].pos, T_ADDR_W), PV_LEFT },\r |
| 148 | { DRDATA (POS1, stack_unit[1].pos, T_ADDR_W), PV_LEFT },\r |
| 149 | { DRDATA (POS28, stack_unit[2].pos, T_ADDR_W), PV_LEFT },\r |
| 150 | { DRDATA (POS4, stack_unit[4].pos, T_ADDR_W), PV_LEFT },\r |
| 151 | { NULL }\r |
| 152 | };\r |
| 153 | \r |
| 154 | DEVICE stack_dev = {\r |
| 155 | "STKR", stack_unit, stack_reg, cdp_mod,\r |
| 156 | 5, 10, 31, 1, 8, 7,\r |
| 157 | NULL, NULL, &cd_reset,\r |
| 158 | NULL, NULL, NULL\r |
| 159 | };\r |
| 160 | \r |
| 161 | /* Card read routine\r |
| 162 | \r |
| 163 | Modifiers have been checked by the caller\r |
| 164 | C modifier is recognized (column binary is implemented)\r |
| 165 | */\r |
| 166 | \r |
| 167 | t_stat read_card (int32 ilnt, int32 mod)\r |
| 168 | {\r |
| 169 | int32 i, cbn, c1, c2;\r |
| 170 | t_stat r;\r |
| 171 | \r |
| 172 | if (sim_is_active (&cdr_unit)) { /* busy? */\r |
| 173 | sim_cancel (&cdr_unit); /* cancel */\r |
| 174 | if (r = cdr_svc (&cdr_unit)) return r; /* process */\r |
| 175 | }\r |
| 176 | if ((cdr_unit.flags & UNIT_ATT) == 0) return SCPE_UNATT; /* attached? */\r |
| 177 | ind[IN_READ] = ind[IN_LST] = s1sel = s2sel = 0; /* default stacker */\r |
| 178 | cbn = ((ilnt == 2) || (ilnt == 5)) && (mod == BCD_C); /* col binary? */\r |
| 179 | for (i = 0; i < 2 * CBUFSIZE; i++) rbuf[i] = 0; /* clear extended buf */\r |
| 180 | fgets (rbuf, (cbn)? 2 * CBUFSIZE: CBUFSIZE, /* rd bin/char card */\r |
| 181 | cdr_unit.fileref);\r |
| 182 | if (feof (cdr_unit.fileref)) return STOP_NOCD; /* eof? */\r |
| 183 | if (ferror (cdr_unit.fileref)) { /* error? */\r |
| 184 | ind[IN_READ] = 1; \r |
| 185 | perror ("Card reader I/O error");\r |
| 186 | clearerr (cdr_unit.fileref);\r |
| 187 | if (iochk) return SCPE_IOERR;\r |
| 188 | return SCPE_OK;\r |
| 189 | }\r |
| 190 | cdr_unit.pos = ftell (cdr_unit.fileref); /* update position */\r |
| 191 | if (ssa) { /* if last cd on */\r |
| 192 | getc (cdr_unit.fileref); /* see if more */\r |
| 193 | if (feof (cdr_unit.fileref)) ind[IN_LST] = 1; /* eof? set flag */\r |
| 194 | fseek (cdr_unit.fileref, cdr_unit.pos, SEEK_SET);\r |
| 195 | }\r |
| 196 | if (cbn) { /* column binary */\r |
| 197 | for (i = 0; i < CDR_WIDTH; i++) {\r |
| 198 | if (conv_old) {\r |
| 199 | c1 = ascii2bcd (rbuf[i]);\r |
| 200 | c2 = ascii2bcd (rbuf[CDR_WIDTH + i]);\r |
| 201 | }\r |
| 202 | else {\r |
| 203 | c1 = ascii2bcd (rbuf[2 * i]);\r |
| 204 | c2 = ascii2bcd (rbuf[(2 * i) + 1]);\r |
| 205 | }\r |
| 206 | M[CD_CBUF1 + i] = (M[CD_CBUF1 + i] & WM) | c1;\r |
| 207 | M[CD_CBUF2 + i] = (M[CD_CBUF2 + i] & WM) | c2;\r |
| 208 | M[CDR_BUF + i] = colbin_to_bcd ((c1 << 6) | c2);\r |
| 209 | } /* end for i */\r |
| 210 | } /* end if col bin */\r |
| 211 | else { /* normal read */\r |
| 212 | for (i = 0; i < CDR_WIDTH; i++) { /* cvt to BCD */\r |
| 213 | rbuf[i] = ascii2bcd (rbuf[i]);\r |
| 214 | M[CDR_BUF + i] = (M[CDR_BUF + i] & WM) | rbuf[i];\r |
| 215 | }\r |
| 216 | }\r |
| 217 | M[CDR_BUF - 1] = 060; /* mem mark */\r |
| 218 | sim_activate (&cdr_unit, cdr_unit.wait); /* activate */\r |
| 219 | return SCPE_OK;\r |
| 220 | }\r |
| 221 | \r |
| 222 | /* Card reader service. If a stacker select is active, copy to the\r |
| 223 | selected stacker. Otherwise, copy to the normal stacker. If the\r |
| 224 | unit is unattached, simply exit.\r |
| 225 | */\r |
| 226 | \r |
| 227 | t_stat cdr_svc (UNIT *uptr)\r |
| 228 | {\r |
| 229 | int32 i;\r |
| 230 | \r |
| 231 | if (s1sel) uptr = &stack_unit[1]; /* stacker 1? */\r |
| 232 | else if (s2sel) uptr = &stack_unit[2]; /* stacker 2? */\r |
| 233 | else uptr = &stack_unit[0]; /* then default */\r |
| 234 | if ((uptr->flags & UNIT_ATT) == 0) return SCPE_OK; /* attached? */\r |
| 235 | for (i = 0; i < CDR_WIDTH; i++)\r |
| 236 | rbuf[i] = bcd2ascii (rbuf[i], uptr->flags & UNIT_PCH);\r |
| 237 | for (i = CDR_WIDTH - 1; (i >= 0) && (rbuf[i] == ' '); i--) rbuf[i] = 0;\r |
| 238 | rbuf[CDR_WIDTH] = 0; /* null at end */\r |
| 239 | fputs (rbuf, uptr->fileref); /* write card */\r |
| 240 | fputc ('\n', uptr->fileref); /* plus new line */\r |
| 241 | uptr->pos = ftell (uptr->fileref); /* update position */\r |
| 242 | if (ferror (uptr->fileref)) { /* error? */\r |
| 243 | perror ("Card stacker I/O error");\r |
| 244 | clearerr (uptr->fileref);\r |
| 245 | if (iochk) return SCPE_IOERR;\r |
| 246 | }\r |
| 247 | return SCPE_OK;\r |
| 248 | }\r |
| 249 | \r |
| 250 | /* Card punch routine\r |
| 251 | \r |
| 252 | Modifiers have been checked by the caller\r |
| 253 | C modifier is recognized (column binary is implemented)\r |
| 254 | */\r |
| 255 | \r |
| 256 | t_stat punch_card (int32 ilnt, int32 mod)\r |
| 257 | {\r |
| 258 | int32 i, cbn, c1, c2;\r |
| 259 | static char pbuf[(2 * CDP_WIDTH) + 1]; /* + null */\r |
| 260 | t_bool use_h;\r |
| 261 | UNIT *uptr;\r |
| 262 | \r |
| 263 | if (s8sel) uptr = &stack_unit[2]; /* stack 8? */\r |
| 264 | else if (s4sel) uptr = &stack_unit[4]; /* stack 4? */\r |
| 265 | else uptr = &cdp_unit; /* normal output */\r |
| 266 | if ((uptr->flags & UNIT_ATT) == 0) return SCPE_UNATT; /* attached? */\r |
| 267 | use_h = uptr->flags & UNIT_PCH;\r |
| 268 | ind[IN_PNCH] = s4sel = s8sel = 0; /* clear flags */\r |
| 269 | cbn = ((ilnt == 2) || (ilnt == 5)) && (mod == BCD_C); /* col binary? */\r |
| 270 | \r |
| 271 | M[CDP_BUF - 1] = 012; /* set prev loc */\r |
| 272 | if (cbn) { /* column binary */\r |
| 273 | for (i = 0; i < CDP_WIDTH; i++) {\r |
| 274 | c1 = bcd2ascii (M[CD_CBUF1 + i] & CHAR, use_h);\r |
| 275 | c2 = bcd2ascii (M[CD_CBUF2 + i] & CHAR, use_h);\r |
| 276 | if (conv_old) {\r |
| 277 | pbuf[i] = c1;\r |
| 278 | pbuf[i + CDP_WIDTH] = c2;\r |
| 279 | }\r |
| 280 | else {\r |
| 281 | pbuf[2 * i] = c1;\r |
| 282 | pbuf[(2 * i) + 1] = c2;\r |
| 283 | }\r |
| 284 | }\r |
| 285 | for (i = 2 * CDP_WIDTH - 1; (i >= 0) && (pbuf[i] == ' '); i--)\r |
| 286 | pbuf[i] = 0;\r |
| 287 | pbuf[2 * CDP_WIDTH] = 0; /* trailing null */\r |
| 288 | }\r |
| 289 | else { /* normal */\r |
| 290 | for (i = 0; i < CDP_WIDTH; i++)\r |
| 291 | pbuf[i] = bcd2ascii (M[CDP_BUF + i] & CHAR, use_h);\r |
| 292 | for (i = CDP_WIDTH - 1; (i >= 0) && (pbuf[i] == ' '); i--)\r |
| 293 | pbuf[i] = 0;\r |
| 294 | pbuf[CDP_WIDTH] = 0; /* trailing null */\r |
| 295 | }\r |
| 296 | fputs (pbuf, uptr->fileref); /* output card */\r |
| 297 | fputc ('\n', uptr->fileref); /* plus new line */\r |
| 298 | uptr->pos = ftell (uptr->fileref); /* update position */\r |
| 299 | if (ferror (uptr->fileref)) { /* error? */\r |
| 300 | perror ("Card punch I/O error");\r |
| 301 | clearerr (uptr->fileref);\r |
| 302 | if (iochk) return SCPE_IOERR;\r |
| 303 | ind[IN_PNCH] = 1;\r |
| 304 | }\r |
| 305 | return SCPE_OK;\r |
| 306 | }\r |
| 307 | \r |
| 308 | /* Select stack routine\r |
| 309 | \r |
| 310 | Modifiers have been checked by the caller\r |
| 311 | Modifiers are 1, 2, 4, 8 for the respective stack,\r |
| 312 | or $, ., square for overlap control (ignored).\r |
| 313 | */\r |
| 314 | \r |
| 315 | t_stat select_stack (int32 ilnt, int32 mod)\r |
| 316 | {\r |
| 317 | if (mod == BCD_ONE) s1sel = 1;\r |
| 318 | else if (mod == BCD_TWO) s2sel = 1;\r |
| 319 | else if (mod == BCD_FOUR) s4sel = 1;\r |
| 320 | else if (mod == BCD_EIGHT) s8sel = 1;\r |
| 321 | return SCPE_OK;\r |
| 322 | }\r |
| 323 | \r |
| 324 | /* Card reader/punch reset */\r |
| 325 | \r |
| 326 | t_stat cd_reset (DEVICE *dptr)\r |
| 327 | {\r |
| 328 | ind[IN_LST] = ind[IN_READ] = ind[IN_PNCH] = 0; /* clear indicators */\r |
| 329 | s1sel = s2sel = s4sel = s8sel = 0; /* clear stacker sel */\r |
| 330 | sim_cancel (&cdr_unit); /* clear reader event */\r |
| 331 | return SCPE_OK;\r |
| 332 | }\r |
| 333 | \r |
| 334 | /* Card reader attach */\r |
| 335 | \r |
| 336 | t_stat cdr_attach (UNIT *uptr, char *cptr)\r |
| 337 | {\r |
| 338 | ind[IN_LST] = ind[IN_READ] = 0; /* clear last card */\r |
| 339 | return attach_unit (uptr, cptr);\r |
| 340 | }\r |
| 341 | \r |
| 342 | /* Bootstrap routine */\r |
| 343 | \r |
| 344 | #define BOOT_START 0\r |
| 345 | #define BOOT_LEN (sizeof (boot_rom) / sizeof (unsigned char))\r |
| 346 | \r |
| 347 | static const unsigned char boot_rom[] = {\r |
| 348 | OP_R + WM, OP_NOP + WM /* R, NOP */\r |
| 349 | };\r |
| 350 | \r |
| 351 | t_stat cdr_boot (int32 unitno, DEVICE *dptr)\r |
| 352 | {\r |
| 353 | int32 i;\r |
| 354 | extern int32 saved_IS;\r |
| 355 | \r |
| 356 | for (i = 0; i < CDR_WIDTH; i++) M[CDR_BUF + i] = 0; /* clear buffer */\r |
| 357 | for (i = 0; i < BOOT_LEN; i++) M[BOOT_START + i] = boot_rom[i];\r |
| 358 | saved_IS = BOOT_START;\r |
| 359 | return SCPE_OK;\r |
| 360 | }\r |
| 361 | \r |
| 362 | /* Column binary to BCD\r |
| 363 | \r |
| 364 | This is based on documentation in the IBM 1620 manual and may not be\r |
| 365 | accurate for the 7094. Each row (12,11,0,1..9) is interpreted as a bit\r |
| 366 | pattern, and the appropriate bits are set. (Double punches inclusive\r |
| 367 | OR, eg, 1,8,9 is 9.) On the 1620, double punch errors are detected;\r |
| 368 | since the 7094 only reads column binary, double punches are ignored.\r |
| 369 | \r |
| 370 | Bit order, left to right, is 12, 11, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.\r |
| 371 | The for loop works right to left, so the table is reversed. */\r |
| 372 | \r |
| 373 | static const char row_val[12] = {\r |
| 374 | 011, 010, 007, 006, 005, 004,\r |
| 375 | 003, 002, 001, 020, 040, 060\r |
| 376 | };\r |
| 377 | \r |
| 378 | char colbin_to_bcd (uint32 cb)\r |
| 379 | {\r |
| 380 | uint32 i;\r |
| 381 | char bcd;\r |
| 382 | \r |
| 383 | for (i = 0, bcd = 0; i < 12; i++) { /* 'sum' rows */\r |
| 384 | if (cb & (1 << i)) bcd |= row_val[i];\r |
| 385 | }\r |
| 386 | return bcd;\r |
| 387 | }\r |