| /* i1401_lp.c: IBM 1403 line printer simulator | |
| Copyright (c) 1993-2005, Robert M. Supnik | |
| Permission is hereby granted, free of charge, to any person obtaining a | |
| copy of this software and associated documentation files (the "Software"), | |
| to deal in the Software without restriction, including without limitation | |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| and/or sell copies of the Software, and to permit persons to whom the | |
| Software is furnished to do so, subject to the following conditions: | |
| The above copyright notice and this permission notice shall be included in | |
| all copies or substantial portions of the Software. | |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
| IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| Except as contained in this notice, the name of Robert M Supnik shall not be | |
| used in advertising or otherwise to promote the sale, use or other dealings | |
| in this Software without prior written authorization from Robert M Supnik. | |
| lpt 1403 line printer | |
| 07-Mar-05 RMS Fixed bug in write_line (reported by Van Snyder) | |
| 25-Apr-03 RMS Revised for extended file support | |
| 30-May-02 RMS Widened POS to 32b | |
| 13-Apr-01 RMS Revised for register arrays | |
| */ | |
| #include "i1401_defs.h" | |
| extern uint8 M[]; | |
| extern char bcd_to_ascii_old[64]; | |
| extern char bcd_to_ascii_a[64], bcd_to_ascii_h[64]; | |
| extern char bcd_to_pca[64], bcd_to_pch[64]; | |
| extern int32 iochk, ind[64]; | |
| extern t_bool conv_old; | |
| int32 cct[CCT_LNT] = { 03 }; | |
| int32 cctlnt = 66, cctptr = 0, lines = 0, lflag = 0; | |
| t_stat lpt_reset (DEVICE *dptr); | |
| t_stat lpt_attach (UNIT *uptr, char *cptr); | |
| t_stat space (int32 lines, int32 lflag); | |
| char *pch_table_old[4] = { | |
| bcd_to_ascii_old, bcd_to_pca, bcd_to_pch, bcd_to_ascii_old | |
| }; | |
| char *pch_table[4] = { | |
| bcd_to_ascii_a, bcd_to_pca, bcd_to_pch, bcd_to_ascii_h | |
| }; | |
| #define UNIT_V_FT (UNIT_V_UF + 0) | |
| #define UNIT_V_48 (UNIT_V_UF + 1) | |
| #define UNIT_FT (1 << UNIT_V_FT) | |
| #define UNIT_48 (1 << UNIT_V_48) | |
| #define GET_PCHAIN(x) (((x) >> UNIT_V_FT) & (UNIT_FT|UNIT_48)) | |
| #define CHP(ch,val) ((val) & (1 << (ch))) | |
| /* LPT data structures | |
| lpt_dev LPT device descriptor | |
| lpt_unit LPT unit descriptor | |
| lpt_reg LPT register list | |
| */ | |
| UNIT lpt_unit = { | |
| UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE, 0) | |
| }; | |
| REG lpt_reg[] = { | |
| { FLDATA (ERR, ind[IN_LPT], 0) }, | |
| { DRDATA (POS, lpt_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { BRDATA (CCT, cct, 8, 32, CCT_LNT) }, | |
| { DRDATA (LINES, lines, 8), PV_LEFT }, | |
| { DRDATA (CCTP, cctptr, 8), PV_LEFT }, | |
| { DRDATA (CCTL, cctlnt, 8), REG_RO + PV_LEFT }, | |
| { NULL } | |
| }; | |
| MTAB lpt_mod[] = { | |
| { UNIT_48, UNIT_48, "48 character chain", "48" }, | |
| { UNIT_48, 0, "64 character chain", "64" }, | |
| { UNIT_FT, UNIT_FT, "Fortran set", "FORTRAN" }, | |
| { UNIT_FT, 0, "business set", "BUSINESS" }, | |
| { UNIT_FT|UNIT_48, 0, NULL, "PCF" }, /* obsolete */ | |
| { UNIT_FT|UNIT_48, UNIT_48, NULL, "PCA" }, | |
| { UNIT_FT|UNIT_48, UNIT_FT|UNIT_48, NULL, "PCH" }, | |
| { 0 } | |
| }; | |
| DEVICE lpt_dev = { | |
| "LPT", &lpt_unit, lpt_reg, lpt_mod, | |
| 1, 10, 31, 1, 8, 7, | |
| NULL, NULL, &lpt_reset, | |
| NULL, &lpt_attach, NULL | |
| }; | |
| /* Print routine | |
| Modifiers have been checked by the caller | |
| SQUARE = word mark mode | |
| S = suppress automatic newline | |
| */ | |
| t_stat write_line (int32 ilnt, int32 mod) | |
| { | |
| int32 i, t, wm, sup; | |
| char *bcd2asc; | |
| static char lbuf[LPT_WIDTH + 1]; /* + null */ | |
| if ((lpt_unit.flags & UNIT_ATT) == 0) return SCPE_UNATT; /* attached? */ | |
| wm = ((ilnt == 2) || (ilnt == 5)) && (mod == BCD_SQUARE); | |
| sup = ((ilnt == 2) || (ilnt == 5)) && (mod == BCD_S); | |
| ind[IN_LPT] = 0; /* clear error */ | |
| if (conv_old) /* get print chain */ | |
| bcd2asc = pch_table_old[GET_PCHAIN (lpt_unit.flags)]; | |
| else bcd2asc = pch_table[GET_PCHAIN (lpt_unit.flags)]; | |
| for (i = 0; i < LPT_WIDTH; i++) { /* convert print buf */ | |
| t = M[LPT_BUF + i]; | |
| if (wm) lbuf[i] = (t & WM)? '1': ' '; /* wmarks -> 1 or sp */ | |
| else lbuf[i] = bcd2asc[t & CHAR]; /* normal */ | |
| } | |
| lbuf[LPT_WIDTH] = 0; /* trailing null */ | |
| for (i = LPT_WIDTH - 1; (i >= 0) && (lbuf[i] == ' '); i--) lbuf[i] = 0; | |
| fputs (lbuf, lpt_unit.fileref); /* write line */ | |
| if (lines) space (lines, lflag); /* cc action? do it */ | |
| else if (sup == 0) space (1, FALSE); /* default? 1 line */ | |
| else { | |
| fputc ('\r', lpt_unit.fileref); /* sup -> overprint */ | |
| lpt_unit.pos = ftell (lpt_unit.fileref); /* update position */ | |
| } | |
| lines = lflag = 0; /* clear cc action */ | |
| if (ferror (lpt_unit.fileref)) { /* error? */ | |
| perror ("Line printer I/O error"); | |
| clearerr (lpt_unit.fileref); | |
| if (iochk) return SCPE_IOERR; | |
| ind[IN_LPT] = 1; | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Carriage control routine | |
| The modifier has not been checked, its format is | |
| <5:4> = 00, skip to channel now | |
| = 01, space lines after | |
| = 10, space lines now | |
| = 11, skip to channel after | |
| <3:0> = number of lines or channel number | |
| */ | |
| t_stat carriage_control (int32 mod) | |
| { | |
| int32 i, action; | |
| action = (mod & ZONE) >> V_ZONE; /* get mod type */ | |
| mod = mod & DIGIT; /* isolate value */ | |
| switch (action) { | |
| case 0: /* to channel now */ | |
| if ((mod == 0) || (mod > 12) || CHP (mod, cct[cctptr])) return SCPE_OK; | |
| for (i = 1; i < cctlnt + 1; i++) { /* sweep thru cct */ | |
| if (CHP (mod, cct[(cctptr + i) % cctlnt])) | |
| return space (i, TRUE); | |
| } | |
| return STOP_CCT; /* runaway channel */ | |
| case 1: /* space after */ | |
| if (mod <= 3) { | |
| lines = mod; /* save # lines */ | |
| lflag = FALSE; /* flag spacing */ | |
| ind[IN_CC9] = ind[IN_CC12] = 0; | |
| } | |
| return SCPE_OK; | |
| case 2: /* space now */ | |
| if (mod <= 3) return space (mod, FALSE); | |
| return SCPE_OK; | |
| case 3: /* to channel after */ | |
| if ((mod == 0) || (mod > 12)) return SCPE_OK; /* check channel */ | |
| ind[IN_CC9] = ind[IN_CC12] = 0; | |
| for (i = 1; i < cctlnt + 1; i++) { /* sweep thru cct */ | |
| if (CHP (mod, cct[(cctptr + i) % cctlnt])) { | |
| lines = i; /* save # lines */ | |
| lflag = TRUE; /* flag skipping */ | |
| return SCPE_OK; | |
| } | |
| } | |
| return STOP_CCT; /* runaway channel */ | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Space routine - space or skip n lines | |
| Inputs: | |
| count = number of lines to space or skip | |
| sflag = skip (TRUE) or space (FALSE) | |
| */ | |
| t_stat space (int32 count, int32 sflag) | |
| { | |
| int32 i; | |
| if ((lpt_unit.flags & UNIT_ATT) == 0) return SCPE_UNATT; | |
| cctptr = (cctptr + count) % cctlnt; /* adv cct, mod lnt */ | |
| if (sflag && CHP (0, cct[cctptr])) /* skip, top of form? */ | |
| fputs ("\n\f", lpt_unit.fileref); /* nl, ff */ | |
| else { | |
| for (i = 0; i < count; i++) fputc ('\n', lpt_unit.fileref); | |
| } | |
| lpt_unit.pos = ftell (lpt_unit.fileref); /* update position */ | |
| ind[IN_CC9] = CHP (9, cct[cctptr]) != 0; /* set indicators */ | |
| ind[IN_CC12] = CHP (12, cct[cctptr]) != 0; | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat lpt_reset (DEVICE *dptr) | |
| { | |
| cctptr = 0; /* clear cct ptr */ | |
| lines = lflag = 0; /* no cc action */ | |
| ind[IN_LPT] = 0; | |
| return SCPE_OK; | |
| } | |
| /* Attach routine */ | |
| t_stat lpt_attach (UNIT *uptr, char *cptr) | |
| { | |
| cctptr = 0; /* clear cct ptr */ | |
| lines = 0; /* no cc action */ | |
| ind[IN_LPT] = 0; | |
| return attach_unit (uptr, cptr); | |
| } |