Commit | Line | Data |
---|---|---|
196ba1fc PH |
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 |