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196ba1fc PH |
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 |