| /* id_lp.c: Interdata line printer | |
| Copyright (c) 2001-2008, 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 M46-206 line printer | |
| 27-May-08 RMS Fixed bug in printing test (from Davis Johnson) | |
| 19-Jan-07 RMS Added UNIT_TEXT flag | |
| 25-Apr-03 RMS Revised for extended file support | |
| */ | |
| #include "id_defs.h" | |
| #include <ctype.h> | |
| /* Device definitions */ | |
| #define UNIT_V_UC (UNIT_V_UF + 0) /* UC only */ | |
| #define UNIT_UC (1 << UNIT_V_UC) | |
| #define SPC_BASE 0x40 /* spacing base */ | |
| #define VFU_BASE 0x78 /* VFU base */ | |
| #define VFU_WIDTH 0x8 /* VFU width */ | |
| #define LF 0xA | |
| #define VT 0xB | |
| #define VT_VFU 4 /* VFU chan for VT */ | |
| #define FF 0xC | |
| #define FF_VFU 8 /* VFU chan for FF */ | |
| #define CR 0xD | |
| #define VFUP(ch,val) ((val) & (1 << (ch))) /* VFU chan test */ | |
| /* Status byte, * = dynamic */ | |
| #define STA_PAPE 0x40 /* *paper empty */ | |
| #define STA_MASK (STA_BSY) /* static status */ | |
| uint32 lpt_sta = STA_BSY; /* status */ | |
| char lpxb[LPT_WIDTH + 1]; /* line buffer */ | |
| uint32 lpt_bptr = 0; /* buf ptr */ | |
| uint32 lpt_spnd = 0; /* space pending */ | |
| uint32 lpt_vfup = 0; /* VFU ptr */ | |
| uint32 lpt_vful = 1; /* VFU lnt */ | |
| uint8 lpt_vfut[VFU_LNT] = { 0xFF }; /* VFU tape */ | |
| uint32 lpt_arm = 0; /* int armed */ | |
| int32 lpt_ctime = 10; /* char time */ | |
| int32 lpt_stime = 1000; /* space time */ | |
| int32 lpt_stopioe = 0; /* stop on err */ | |
| extern uint32 int_req[INTSZ], int_enb[INTSZ]; | |
| DEVICE lpt_dev; | |
| uint32 lpt (uint32 dev, uint32 op, uint32 dat); | |
| t_stat lpt_svc (UNIT *uptr); | |
| t_stat lpt_reset (DEVICE *dptr); | |
| t_stat lpt_attach (UNIT *uptr, char *cptr); | |
| t_stat lpt_bufout (UNIT *uptr); | |
| t_stat lpt_vfu (UNIT *uptr, int32 ch); | |
| t_stat lpt_spc (UNIT *uptr, int32 cnt); | |
| /* LPT data structures | |
| lpt_dev LPT device descriptor | |
| lpt_unit LPT unit descriptors | |
| lpt_reg LPT register list | |
| */ | |
| DIB lpt_dib = { d_LPT, -1, v_LPT, NULL, &lpt, NULL }; | |
| UNIT lpt_unit = { UDATA (&lpt_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_UC+UNIT_TEXT, 0) }; | |
| REG lpt_reg[] = { | |
| { HRDATA (STA, lpt_sta, 8) }, | |
| { HRDATA (BUF, lpt_unit.buf, 7) }, | |
| { BRDATA (DBUF, lpxb, 16, 7, LPT_WIDTH) }, | |
| { HRDATA (DBPTR, lpt_bptr, 8) }, | |
| { HRDATA (VFUP, lpt_vfup, 8) }, | |
| { HRDATA (VFUL, lpt_vful, 8) }, | |
| { BRDATA (VFUT, lpt_vfut, 16, 8, VFU_LNT) }, | |
| { FLDATA (IREQ, int_req[l_LPT], i_LPT) }, | |
| { FLDATA (IENB, int_enb[l_LPT], i_LPT) }, | |
| { FLDATA (IARM, lpt_arm, 0) }, | |
| { DRDATA (POS, lpt_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (CTIME, lpt_ctime, 24), PV_LEFT }, | |
| { DRDATA (STIME, lpt_stime, 24), PV_LEFT }, | |
| { FLDATA (STOP_IOE, lpt_stopioe, 0) }, | |
| { HRDATA (DEVNO, lpt_dib.dno, 8), REG_HRO }, | |
| { NULL } | |
| }; | |
| MTAB lpt_mod[] = { | |
| { UNIT_UC, 0, "lower case", "LC", NULL }, | |
| { UNIT_UC, UNIT_UC, "upper case", "UC", NULL }, | |
| { MTAB_XTD|MTAB_VDV, 0, "DEVNO", "DEVNO", | |
| &set_dev, &show_dev, NULL }, | |
| { 0 } | |
| }; | |
| DEVICE lpt_dev = { | |
| "LPT", &lpt_unit, lpt_reg, lpt_mod, | |
| 1, 10, 31, 1, 16, 7, | |
| NULL, NULL, &lpt_reset, | |
| NULL, &lpt_attach, NULL, | |
| &lpt_dib, DEV_DISABLE | |
| }; | |
| /* Line printer: IO routine */ | |
| uint32 lpt (uint32 dev, uint32 op, uint32 dat) | |
| { | |
| int32 t; | |
| switch (op) { /* case IO op */ | |
| case IO_ADR: /* select */ | |
| return BY; /* byte only */ | |
| case IO_OC: /* command */ | |
| lpt_arm = int_chg (v_LPT, dat, lpt_arm); /* upd int ctrl */ | |
| break; | |
| case IO_WD: /* write */ | |
| t = lpt_unit.buf = dat & 0x7F; /* mask char */ | |
| lpt_sta = STA_BSY; /* set busy */ | |
| if (lpt_spnd || ((t >= LF) && (t <= CR))) /* space op? */ | |
| sim_activate (&lpt_unit, lpt_stime); | |
| else sim_activate (&lpt_unit, lpt_ctime); /* normal char */ | |
| break; | |
| case IO_SS: /* status */ | |
| t = lpt_sta & STA_MASK; /* status byte */ | |
| if ((lpt_unit.flags & UNIT_ATT) == 0) /* test paper out */ | |
| t = t | STA_EX | STA_PAPE | STA_BSY; | |
| return t; | |
| } | |
| return 0; | |
| } | |
| /* Unit service */ | |
| t_stat lpt_svc (UNIT *uptr) | |
| { | |
| int32 t; | |
| t_stat r = SCPE_OK; | |
| lpt_sta = 0; /* clear busy */ | |
| if (lpt_arm) /* armed? intr */ | |
| SET_INT (v_LPT); | |
| if ((uptr->flags & UNIT_ATT) == 0) /* attached? */ | |
| return IORETURN (lpt_stopioe, SCPE_UNATT); | |
| t = uptr->buf; /* get character */ | |
| if (lpt_spnd || ((t >= LF) && (t < CR))) { /* spc pend or spc op? */ | |
| lpt_spnd = 0; | |
| if (lpt_bufout (uptr) != SCPE_OK) /* print */ | |
| return SCPE_IOERR; | |
| if ((t == 1) || (t == LF)) /* single space */ | |
| lpt_spc (uptr, 1); | |
| else if (t == VT) /* VT->VFU */ | |
| r = lpt_vfu (uptr, VT_VFU - 1); | |
| else if (t == 0xC) /* FF->VFU */ | |
| r = lpt_vfu (uptr, FF_VFU - 1); | |
| else if ((t >= SPC_BASE) && (t < VFU_BASE)) | |
| lpt_spc (uptr, t - SPC_BASE); /* space */ | |
| else if ((t >= VFU_BASE) && (t < VFU_BASE + VFU_WIDTH)) | |
| r = lpt_vfu (uptr, t - VFU_BASE); /* VFU */ | |
| else fputs ("\r", uptr->fileref); /* overprint */ | |
| uptr->pos = ftell (uptr->fileref); /* update position */ | |
| if (ferror (lpt_unit.fileref)) { | |
| perror ("LPT I/O error"); | |
| clearerr (uptr->fileref); | |
| return SCPE_IOERR; | |
| } | |
| } | |
| else if (t == CR) { /* CR? */ | |
| lpt_spnd = 1; /* set spc pend */ | |
| return lpt_bufout (uptr); /* print line */ | |
| } | |
| else if (t >= 0x20) { /* printable? */ | |
| if ((uptr->flags & UNIT_UC) && islower (t)) /* UC only? */ | |
| t = toupper (t); | |
| if (lpt_bptr < LPT_WIDTH) | |
| lpxb[lpt_bptr++] = t; | |
| } | |
| return r; | |
| } | |
| /* Printing and spacing routines */ | |
| t_stat lpt_bufout (UNIT *uptr) | |
| { | |
| int32 i; | |
| t_stat r = SCPE_OK; | |
| if (lpt_bptr == 0) return SCPE_OK; /* any char in buf? */ | |
| for (i = LPT_WIDTH - 1; (i >= 0) && (lpxb[i] == ' '); i--) | |
| lpxb[i] = 0; /* backscan line */ | |
| if (lpxb[0]) { /* any char left? */ | |
| fputs (lpxb, uptr->fileref); /* write line */ | |
| lpt_unit.pos = ftell (uptr->fileref); /* update position */ | |
| if (ferror (uptr->fileref)) { | |
| perror ("LPT I/O error"); | |
| clearerr (uptr->fileref); | |
| r = SCPE_IOERR; | |
| } | |
| } | |
| lpt_bptr = 0; /* reset buffer */ | |
| for (i = 0; i < LPT_WIDTH; i++) | |
| lpxb[i] = ' '; | |
| lpxb[LPT_WIDTH] = 0; | |
| return r; | |
| } | |
| t_stat lpt_vfu (UNIT *uptr, int32 ch) | |
| { | |
| uint32 i, j; | |
| if ((ch == (FF_VFU - 1)) && VFUP (ch, lpt_vfut[0])) { /* top of form? */ | |
| fputs ("\n\f", uptr->fileref); /* nl + ff */ | |
| lpt_vfup = 0; /* top of page */ | |
| return SCPE_OK; | |
| } | |
| for (i = 1; i < lpt_vful + 1; i++) { /* sweep thru cct */ | |
| lpt_vfup = (lpt_vfup + 1) % lpt_vful; /* adv pointer */ | |
| if (VFUP (ch, lpt_vfut[lpt_vfup])) { /* chan punched? */ | |
| for (j = 0; j < i; j++) | |
| fputc ('\n', uptr->fileref); | |
| return SCPE_OK; | |
| } | |
| } | |
| return STOP_VFU; /* runaway channel */ | |
| } | |
| t_stat lpt_spc (UNIT *uptr, int32 cnt) | |
| { | |
| int32 i; | |
| if (cnt == 0) | |
| fputc ('\r', uptr->fileref); | |
| else { | |
| for (i = 0; i < cnt; i++) | |
| fputc ('\n', uptr->fileref); | |
| lpt_vfup = (lpt_vfup + cnt) % lpt_vful; | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat lpt_reset (DEVICE *dptr) | |
| { | |
| int32 i; | |
| sim_cancel (&lpt_unit); /* deactivate */ | |
| lpt_sta = 0; /* clr busy */ | |
| lpt_bptr = 0; /* clr buf ptr */ | |
| for (i = 0; i < LPT_WIDTH; i++) /* clr buf */ | |
| lpxb[i] = ' '; | |
| lpxb[LPT_WIDTH] = 0; | |
| CLR_INT (v_LPT); /* clearr int */ | |
| CLR_ENB (v_LPT); /* disable int */ | |
| lpt_arm = 0; /* disarm int */ | |
| return SCPE_OK; | |
| } | |
| /* Attach routine */ | |
| t_stat lpt_attach (UNIT *uptr, char *cptr) | |
| { | |
| lpt_vfup = 0; /* top of form */ | |
| return attach_unit (uptr, cptr); | |
| } | |
| /* Carriage control load routine */ | |
| t_stat lp_load (FILE *fileref, char *cptr, char *fnam) | |
| { | |
| int32 col, ptr, mask, vfubuf[VFU_LNT]; | |
| uint32 rpt; | |
| t_stat r; | |
| char cbuf[CBUFSIZE], gbuf[CBUFSIZE]; | |
| if (*cptr != 0) | |
| return SCPE_ARG; | |
| ptr = 0; | |
| for ( ; (cptr = fgets (cbuf, CBUFSIZE, fileref)) != NULL; ) { /* until eof */ | |
| mask = 0; | |
| if (*cptr == '(') { /* repeat count? */ | |
| cptr = get_glyph (cptr + 1, gbuf, ')'); /* get 1st field */ | |
| rpt = get_uint (gbuf, 10, VFU_LNT, &r); /* repeat count */ | |
| if (r != SCPE_OK) | |
| return SCPE_FMT; | |
| } | |
| else rpt = 1; | |
| while (*cptr != 0) { /* get col no's */ | |
| cptr = get_glyph (cptr, gbuf, ','); /* get next field */ | |
| col = get_uint (gbuf, 10, 7, &r); /* column number */ | |
| if (r != SCPE_OK) | |
| return SCPE_FMT; | |
| mask = mask | (1 << col); /* set bit */ | |
| } | |
| for ( ; rpt > 0; rpt--) { /* store vals */ | |
| if (ptr >= VFU_LNT) | |
| return SCPE_FMT; | |
| vfubuf[ptr++] = mask; | |
| } | |
| } | |
| if (ptr == 0) | |
| return SCPE_FMT; | |
| lpt_vful = ptr; | |
| lpt_vfup = 0; | |
| for (rpt = 0; rpt < lpt_vful; rpt++) | |
| lpt_vfut[rpt] = vfubuf[rpt]; | |
| return SCPE_OK; | |
| } |