| 1 | /* i1401_lp.c: IBM 1403 line printer simulator\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 | lpt 1403 line printer\r |
| 27 | \r |
| 28 | 19-Jan-07 RMS Added UNIT_TEXT flag\r |
| 29 | 07-Mar-05 RMS Fixed bug in write_line (reported by Van Snyder)\r |
| 30 | 25-Apr-03 RMS Revised for extended file support\r |
| 31 | 30-May-02 RMS Widened POS to 32b\r |
| 32 | 13-Apr-01 RMS Revised for register arrays\r |
| 33 | */\r |
| 34 | \r |
| 35 | #include "i1401_defs.h"\r |
| 36 | \r |
| 37 | extern uint8 M[];\r |
| 38 | extern char bcd_to_ascii_old[64];\r |
| 39 | extern char bcd_to_ascii_a[64], bcd_to_ascii_h[64];\r |
| 40 | extern char bcd_to_pca[64], bcd_to_pch[64];\r |
| 41 | extern int32 iochk, ind[64];\r |
| 42 | extern t_bool conv_old;\r |
| 43 | \r |
| 44 | int32 cct[CCT_LNT] = { 03 };\r |
| 45 | int32 cctlnt = 66, cctptr = 0, lines = 0, lflag = 0;\r |
| 46 | \r |
| 47 | t_stat lpt_reset (DEVICE *dptr);\r |
| 48 | t_stat lpt_attach (UNIT *uptr, char *cptr);\r |
| 49 | t_stat space (int32 lines, int32 lflag);\r |
| 50 | \r |
| 51 | char *pch_table_old[4] = {\r |
| 52 | bcd_to_ascii_old, bcd_to_pca, bcd_to_pch, bcd_to_ascii_old\r |
| 53 | };\r |
| 54 | char *pch_table[4] = {\r |
| 55 | bcd_to_ascii_a, bcd_to_pca, bcd_to_pch, bcd_to_ascii_h\r |
| 56 | };\r |
| 57 | \r |
| 58 | #define UNIT_V_FT (UNIT_V_UF + 0)\r |
| 59 | #define UNIT_V_48 (UNIT_V_UF + 1)\r |
| 60 | #define UNIT_FT (1 << UNIT_V_FT)\r |
| 61 | #define UNIT_48 (1 << UNIT_V_48)\r |
| 62 | #define GET_PCHAIN(x) (((x) >> UNIT_V_FT) & (UNIT_FT|UNIT_48))\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 (NULL, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0)\r |
| 74 | };\r |
| 75 | \r |
| 76 | REG lpt_reg[] = {\r |
| 77 | { FLDATA (ERR, ind[IN_LPT], 0) },\r |
| 78 | { DRDATA (POS, lpt_unit.pos, T_ADDR_W), PV_LEFT },\r |
| 79 | { BRDATA (CCT, cct, 8, 32, CCT_LNT) },\r |
| 80 | { DRDATA (LINES, lines, 8), PV_LEFT },\r |
| 81 | { DRDATA (CCTP, cctptr, 8), PV_LEFT },\r |
| 82 | { DRDATA (CCTL, cctlnt, 8), REG_RO + PV_LEFT },\r |
| 83 | { NULL }\r |
| 84 | };\r |
| 85 | \r |
| 86 | MTAB lpt_mod[] = {\r |
| 87 | { UNIT_48, UNIT_48, "48 character chain", "48" },\r |
| 88 | { UNIT_48, 0, "64 character chain", "64" },\r |
| 89 | { UNIT_FT, UNIT_FT, "Fortran set", "FORTRAN" },\r |
| 90 | { UNIT_FT, 0, "business set", "BUSINESS" },\r |
| 91 | { UNIT_FT|UNIT_48, 0, NULL, "PCF" }, /* obsolete */\r |
| 92 | { UNIT_FT|UNIT_48, UNIT_48, NULL, "PCA" },\r |
| 93 | { UNIT_FT|UNIT_48, UNIT_FT|UNIT_48, NULL, "PCH" },\r |
| 94 | { 0 }\r |
| 95 | };\r |
| 96 | \r |
| 97 | DEVICE lpt_dev = {\r |
| 98 | "LPT", &lpt_unit, lpt_reg, lpt_mod,\r |
| 99 | 1, 10, 31, 1, 8, 7,\r |
| 100 | NULL, NULL, &lpt_reset,\r |
| 101 | NULL, &lpt_attach, NULL\r |
| 102 | };\r |
| 103 | \r |
| 104 | /* Print routine\r |
| 105 | \r |
| 106 | Modifiers have been checked by the caller\r |
| 107 | SQUARE = word mark mode\r |
| 108 | S = suppress automatic newline\r |
| 109 | */\r |
| 110 | \r |
| 111 | t_stat write_line (int32 ilnt, int32 mod)\r |
| 112 | {\r |
| 113 | int32 i, t, wm, sup;\r |
| 114 | char *bcd2asc;\r |
| 115 | static char lbuf[LPT_WIDTH + 1]; /* + null */\r |
| 116 | \r |
| 117 | if ((lpt_unit.flags & UNIT_ATT) == 0) return SCPE_UNATT; /* attached? */\r |
| 118 | wm = ((ilnt == 2) || (ilnt == 5)) && (mod == BCD_SQUARE);\r |
| 119 | sup = ((ilnt == 2) || (ilnt == 5)) && (mod == BCD_S);\r |
| 120 | ind[IN_LPT] = 0; /* clear error */\r |
| 121 | if (conv_old) /* get print chain */\r |
| 122 | bcd2asc = pch_table_old[GET_PCHAIN (lpt_unit.flags)];\r |
| 123 | else bcd2asc = pch_table[GET_PCHAIN (lpt_unit.flags)];\r |
| 124 | for (i = 0; i < LPT_WIDTH; i++) { /* convert print buf */\r |
| 125 | t = M[LPT_BUF + i];\r |
| 126 | if (wm) lbuf[i] = (t & WM)? '1': ' '; /* wmarks -> 1 or sp */\r |
| 127 | else lbuf[i] = bcd2asc[t & CHAR]; /* normal */\r |
| 128 | }\r |
| 129 | lbuf[LPT_WIDTH] = 0; /* trailing null */\r |
| 130 | for (i = LPT_WIDTH - 1; (i >= 0) && (lbuf[i] == ' '); i--) lbuf[i] = 0;\r |
| 131 | fputs (lbuf, lpt_unit.fileref); /* write line */\r |
| 132 | if (lines) space (lines, lflag); /* cc action? do it */\r |
| 133 | else if (sup == 0) space (1, FALSE); /* default? 1 line */\r |
| 134 | else {\r |
| 135 | fputc ('\r', lpt_unit.fileref); /* sup -> overprint */\r |
| 136 | lpt_unit.pos = ftell (lpt_unit.fileref); /* update position */\r |
| 137 | }\r |
| 138 | lines = lflag = 0; /* clear cc action */\r |
| 139 | if (ferror (lpt_unit.fileref)) { /* error? */\r |
| 140 | ind[IN_LPT] = 1;\r |
| 141 | perror ("Line printer I/O error");\r |
| 142 | clearerr (lpt_unit.fileref);\r |
| 143 | if (iochk) return SCPE_IOERR;\r |
| 144 | }\r |
| 145 | return SCPE_OK;\r |
| 146 | }\r |
| 147 | \r |
| 148 | /* Carriage control routine\r |
| 149 | \r |
| 150 | The modifier has not been checked, its format is\r |
| 151 | <5:4> = 00, skip to channel now\r |
| 152 | = 01, space lines after\r |
| 153 | = 10, space lines now\r |
| 154 | = 11, skip to channel after\r |
| 155 | <3:0> = number of lines or channel number\r |
| 156 | */\r |
| 157 | \r |
| 158 | t_stat carriage_control (int32 mod)\r |
| 159 | {\r |
| 160 | int32 i, action;\r |
| 161 | \r |
| 162 | action = (mod & ZONE) >> V_ZONE; /* get mod type */\r |
| 163 | mod = mod & DIGIT; /* isolate value */\r |
| 164 | \r |
| 165 | switch (action) {\r |
| 166 | \r |
| 167 | case 0: /* to channel now */\r |
| 168 | if ((mod == 0) || (mod > 12) || CHP (mod, cct[cctptr])) return SCPE_OK;\r |
| 169 | for (i = 1; i < cctlnt + 1; i++) { /* sweep thru cct */\r |
| 170 | if (CHP (mod, cct[(cctptr + i) % cctlnt]))\r |
| 171 | return space (i, TRUE);\r |
| 172 | }\r |
| 173 | return STOP_CCT; /* runaway channel */\r |
| 174 | \r |
| 175 | case 1: /* space after */\r |
| 176 | if (mod <= 3) {\r |
| 177 | lines = mod; /* save # lines */\r |
| 178 | lflag = FALSE; /* flag spacing */\r |
| 179 | ind[IN_CC9] = ind[IN_CC12] = 0;\r |
| 180 | }\r |
| 181 | return SCPE_OK;\r |
| 182 | \r |
| 183 | case 2: /* space now */\r |
| 184 | if (mod <= 3) return space (mod, FALSE);\r |
| 185 | return SCPE_OK;\r |
| 186 | \r |
| 187 | case 3: /* to channel after */\r |
| 188 | if ((mod == 0) || (mod > 12)) return SCPE_OK; /* check channel */\r |
| 189 | ind[IN_CC9] = ind[IN_CC12] = 0;\r |
| 190 | for (i = 1; i < cctlnt + 1; i++) { /* sweep thru cct */\r |
| 191 | if (CHP (mod, cct[(cctptr + i) % cctlnt])) {\r |
| 192 | lines = i; /* save # lines */\r |
| 193 | lflag = TRUE; /* flag skipping */\r |
| 194 | return SCPE_OK;\r |
| 195 | }\r |
| 196 | }\r |
| 197 | return STOP_CCT; /* runaway channel */\r |
| 198 | }\r |
| 199 | \r |
| 200 | return SCPE_OK;\r |
| 201 | }\r |
| 202 | \r |
| 203 | /* Space routine - space or skip n lines\r |
| 204 | \r |
| 205 | Inputs:\r |
| 206 | count = number of lines to space or skip\r |
| 207 | sflag = skip (TRUE) or space (FALSE)\r |
| 208 | */\r |
| 209 | \r |
| 210 | t_stat space (int32 count, int32 sflag)\r |
| 211 | {\r |
| 212 | int32 i;\r |
| 213 | \r |
| 214 | if ((lpt_unit.flags & UNIT_ATT) == 0) return SCPE_UNATT;\r |
| 215 | cctptr = (cctptr + count) % cctlnt; /* adv cct, mod lnt */\r |
| 216 | if (sflag && CHP (0, cct[cctptr])) /* skip, top of form? */\r |
| 217 | fputs ("\n\f", lpt_unit.fileref); /* nl, ff */\r |
| 218 | else {\r |
| 219 | for (i = 0; i < count; i++) fputc ('\n', lpt_unit.fileref);\r |
| 220 | }\r |
| 221 | lpt_unit.pos = ftell (lpt_unit.fileref); /* update position */\r |
| 222 | ind[IN_CC9] = CHP (9, cct[cctptr]) != 0; /* set indicators */\r |
| 223 | ind[IN_CC12] = CHP (12, cct[cctptr]) != 0;\r |
| 224 | return SCPE_OK;\r |
| 225 | }\r |
| 226 | \r |
| 227 | /* Reset routine */\r |
| 228 | \r |
| 229 | t_stat lpt_reset (DEVICE *dptr)\r |
| 230 | {\r |
| 231 | cctptr = 0; /* clear cct ptr */\r |
| 232 | lines = lflag = 0; /* no cc action */\r |
| 233 | ind[IN_LPT] = 0;\r |
| 234 | return SCPE_OK;\r |
| 235 | }\r |
| 236 | \r |
| 237 | /* Attach routine */\r |
| 238 | \r |
| 239 | t_stat lpt_attach (UNIT *uptr, char *cptr)\r |
| 240 | {\r |
| 241 | cctptr = 0; /* clear cct ptr */\r |
| 242 | lines = 0; /* no cc action */\r |
| 243 | ind[IN_LPT] = 0;\r |
| 244 | return attach_unit (uptr, cptr);\r |
| 245 | }\r |