| /* hp2100_lps.c: HP 2100 12653A 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. | |
| lps 12653A 2767 line printer | |
| (based on 12566B microcircuit interface) | |
| 19-Nov-04 JDB Added restart when set online, etc. | |
| Fixed col count for non-printing chars | |
| 01-Oct-04 JDB Added SET OFFLINE/ONLINE, POWEROFF/POWERON | |
| Fixed status returns for error conditions | |
| Fixed handling of non-printing characters | |
| Fixed handling of characters after column 80 | |
| Improved timing model accuracy for RTE | |
| Added fast/realistic timing | |
| Added debug printouts | |
| 03-Jun-04 RMS Fixed timing (found by Dave Bryan) | |
| 26-Apr-04 RMS Fixed SFS x,C and SFC x,C | |
| Implemented DMA SRQ (follows FLG) | |
| 25-Apr-03 RMS Revised for extended file support | |
| 24-Oct-02 RMS Added microcircuit test features | |
| 30-May-02 RMS Widened POS to 32b | |
| 03-Dec-01 RMS Changed DEVNO to use extended SET/SHOW | |
| 07-Sep-01 RMS Moved function prototypes | |
| 21-Nov-00 RMS Fixed flag, fbf power up state | |
| Added command flop | |
| 15-Oct-00 RMS Added variable device number support | |
| The 2767 impact printer has a rotating drum with 80 columns of 64 raised | |
| characters. ASCII codes 32 through 95 (SPACE through "_") form the print | |
| repertoire. The printer responds to the control characters FF, LF, and CR. | |
| The 80 columns are divided into four zones of 20 characters each that are | |
| addressed sequentially. Received characters are buffered in a 20-character | |
| memory. When the 20th printable character is received, the current zone is | |
| printed, and the memory is reset. In the absence of print command | |
| characters, a zone print operation will commence after each group of 20 | |
| printable characters is transmitted to the printer. | |
| The print command characters have these actions: | |
| * CR -- print the characters in the current zone, reset to zone 1, and clear | |
| the buffer memory. | |
| * LF -- same as CR, plus advances the paper one line. | |
| * FF -- same as CR, plus advances the paper to the top of the next form. | |
| The 2767 provides two status bits via the interface: | |
| bit 15 -- printer not ready | |
| bit 0 -- printer busy | |
| The expected status returns are: | |
| 100001 -- power off or cable disconnected | |
| 100001 -- initial power on, then changes to 000001 within sixty | |
| seconds of initial power on | |
| 000001 -- power on, paper unloaded or printer offline or not idle | |
| 000000 -- power on, paper loaded and printer online and idle | |
| These simulator commands provide the listed printer states: | |
| SET LPS POWEROFF --> power off or cable disconnected | |
| SET LPS POWERON --> power on | |
| SET LPS OFFLINE --> printer offline | |
| SET LPS ONLINE --> printer online | |
| ATT LPS <file> --> paper loaded | |
| DET LPS --> paper out | |
| References: | |
| - 2767A Line Printer Operating and Service Manual (02767-90002, Oct-1973) | |
| - 12566B, 12566B-001, 12566B-002, 12566B-003 Microcircuit Interface Kits | |
| Operating and Service Manual (12566-90015, Apr-1976) | |
| The following implemented behaviors have been inferred from secondary sources | |
| (diagnostics, operating system drivers, etc.), due to absent or contradictory | |
| authoritative information; future correction may be needed: | |
| 1. Paper out sets BUSY instead of NOT READY. | |
| 2. Print operation in progress sets BUSY instead of NOT READY. | |
| 3. Characters not in the print repertoire are replaced with blanks. | |
| 4. The 81st and succeeding characters overprint the current line. | |
| */ | |
| #include "hp2100_defs.h" | |
| #define LPS_ZONECNT 20 /* zone char count */ | |
| #define LPS_PAGECNT 80 /* page char count */ | |
| #define LPS_PAGELNT 60 /* page line length */ | |
| #define LPS_FORMLNT 66 /* form line length */ | |
| /* Printer power states */ | |
| #define LPS_ON 0 /* power is on */ | |
| #define LPS_OFF 1 /* power is off */ | |
| #define LPS_TURNING_ON 2 /* power is turning on */ | |
| #define LPS_BUSY 0000001 /* busy status */ | |
| #define LPS_NRDY 0100000 /* not ready status */ | |
| #define LPS_PWROFF LPS_BUSY | LPS_NRDY /* power-off status */ | |
| #define UNIT_V_DIAG (UNIT_V_UF + 0) /* diagnostic mode */ | |
| #define UNIT_V_POWEROFF (UNIT_V_UF + 1) /* unit powered off */ | |
| #define UNIT_V_OFFLINE (UNIT_V_UF + 2) /* unit offline */ | |
| #define UNIT_DIAG (1 << UNIT_V_DIAG) | |
| #define UNIT_POWEROFF (1 << UNIT_V_POWEROFF) | |
| #define UNIT_OFFLINE (1 << UNIT_V_OFFLINE) | |
| extern uint32 PC; | |
| extern uint32 dev_cmd[2], dev_ctl[2], dev_flg[2], dev_fbf[2], dev_srq[2]; | |
| extern FILE *sim_deb; | |
| int32 lps_ccnt = 0; /* character count */ | |
| int32 lps_lcnt = 0; /* line count */ | |
| int32 lps_stopioe = 0; /* stop on error */ | |
| int32 lps_sta = 0; /* printer status */ | |
| int32 lps_timing = 1; /* timing type */ | |
| uint32 lps_power = LPS_ON; /* power state */ | |
| /* Hardware timing: | |
| (based on 1580 instr/msec) instr msec calc msec | |
| ------------------------ | |
| - character transfer time : ctime = 2 2 us | |
| - per-zone printing time : ptime = 55300 35 40 | |
| - per-line paper slew time : stime = 17380 11 13 | |
| - power-on ready delay time : rtime = 158000 100 | |
| NOTE: the printer acknowledges before the print motion has stopped to allow | |
| for continuous slew, so the set times are a bit less than the calculated | |
| operation time from the manual. | |
| */ | |
| int32 lps_ctime = 0; /* char xfer time */ | |
| int32 lps_ptime = 0; /* zone printing time */ | |
| int32 lps_stime = 0; /* paper slew time */ | |
| int32 lps_rtime = 0; /* power-on ready time */ | |
| typedef int32 TIMESET[4]; /* set of controller times */ | |
| int32 *const lps_timers[] = { &lps_ctime, &lps_ptime, &lps_stime, &lps_rtime }; | |
| const TIMESET lps_times[2] = { | |
| { 2, 55300, 17380, 158000 }, /* REALTIME */ | |
| { 2, 1000, 1000, 1000 } /* FASTTIME */ | |
| }; | |
| DEVICE lps_dev; | |
| int32 lpsio (int32 inst, int32 IR, int32 dat); | |
| t_stat lps_svc (UNIT *uptr); | |
| t_stat lps_reset (DEVICE *dptr); | |
| t_stat lps_restart (UNIT *uptr, int32 value, char *cptr, void *desc); | |
| t_stat lps_poweroff (UNIT *uptr, int32 value, char *cptr, void *desc); | |
| t_stat lps_poweron (UNIT *uptr, int32 value, char *cptr, void *desc); | |
| t_stat lps_attach (UNIT *uptr, char *cptr); | |
| t_stat lps_set_timing (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat lps_show_timing (FILE *st, UNIT *uptr, int32 val, void *desc); | |
| /* LPS data structures | |
| lps_dev LPS device descriptor | |
| lps_unit LPS unit descriptor | |
| lps_reg LPS register list | |
| */ | |
| DIB lps_dib = { LPS, 0, 0, 0, 0, 0, &lpsio }; | |
| UNIT lps_unit = { | |
| UDATA (&lps_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_DISABLE, 0) | |
| }; | |
| REG lps_reg[] = { | |
| { ORDATA (BUF, lps_unit.buf, 16) }, | |
| { ORDATA (STA, lps_sta, 16) }, | |
| { ORDATA (POWER, lps_power, 2), REG_RO }, | |
| { FLDATA (CMD, lps_dib.cmd, 0) }, | |
| { FLDATA (CTL, lps_dib.ctl, 0) }, | |
| { FLDATA (FLG, lps_dib.flg, 0) }, | |
| { FLDATA (FBF, lps_dib.fbf, 0) }, | |
| { FLDATA (SRQ, lps_dib.srq, 0) }, | |
| { DRDATA (CCNT, lps_ccnt, 7), PV_LEFT }, | |
| { DRDATA (LCNT, lps_lcnt, 7), PV_LEFT }, | |
| { DRDATA (POS, lps_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (CTIME, lps_ctime, 24), PV_LEFT }, | |
| { DRDATA (PTIME, lps_ptime, 24), PV_LEFT }, | |
| { DRDATA (STIME, lps_stime, 24), PV_LEFT }, | |
| { DRDATA (RTIME, lps_rtime, 24), PV_LEFT }, | |
| { FLDATA (TIMING, lps_timing, 0), REG_HRO }, | |
| { FLDATA (STOP_IOE, lps_stopioe, 0) }, | |
| { ORDATA (DEVNO, lps_dib.devno, 6), REG_HRO }, | |
| { NULL } | |
| }; | |
| MTAB lps_mod[] = { | |
| { UNIT_DIAG, UNIT_DIAG, "diagnostic mode", "DIAG", NULL }, | |
| { UNIT_DIAG, 0, "printer mode", "PRINTER", NULL }, | |
| { UNIT_POWEROFF, UNIT_POWEROFF, "power off", "POWEROFF", lps_poweroff }, | |
| { UNIT_POWEROFF, 0, "power on", "POWERON", lps_poweron }, | |
| { UNIT_OFFLINE, UNIT_OFFLINE, "offline", "OFFLINE", NULL }, | |
| { UNIT_OFFLINE, 0, "online", "ONLINE", lps_restart }, | |
| { MTAB_XTD | MTAB_VDV, 0, NULL, "REALTIME", | |
| &lps_set_timing, NULL, NULL }, | |
| { MTAB_XTD | MTAB_VDV, 1, NULL, "FASTTIME", | |
| &lps_set_timing, NULL, NULL }, | |
| { MTAB_XTD | MTAB_VDV, 0, "TIMING", NULL, | |
| NULL, &lps_show_timing, NULL }, | |
| { MTAB_XTD | MTAB_VDV, 0, "DEVNO", "DEVNO", | |
| &hp_setdev, &hp_showdev, &lps_dev }, | |
| { 0 } | |
| }; | |
| DEVICE lps_dev = { | |
| "LPS", &lps_unit, lps_reg, lps_mod, | |
| 1, 10, 31, 1, 8, 8, | |
| NULL, NULL, &lps_reset, | |
| NULL, &lps_attach, NULL, | |
| &lps_dib, DEV_DISABLE | DEV_DIS | DEV_DEBUG | |
| }; | |
| /* IO instructions */ | |
| int32 lpsio (int32 inst, int32 IR, int32 dat) | |
| { | |
| int32 dev, sched; | |
| dev = IR & I_DEVMASK; /* get device no */ | |
| switch (inst) { /* case on opcode */ | |
| case ioFLG: /* flag clear/set */ | |
| if ((IR & I_HC) == 0) { setFSR (dev); } /* STF */ | |
| break; | |
| case ioSFC: /* skip flag clear */ | |
| if (FLG (dev) == 0) PC = (PC + 1) & VAMASK; | |
| break; | |
| case ioSFS: /* skip flag set */ | |
| if (FLG (dev) != 0) PC = (PC + 1) & VAMASK; | |
| break; | |
| case ioOTX: /* output */ | |
| if (DEBUG_PRS (lps_dev)) | |
| fprintf (sim_deb, ">>LPS OTx: Character %06o output\n", dat); | |
| lps_unit.buf = dat; | |
| break; | |
| case ioLIX: /* load */ | |
| dat = 0; /* default sta = 0 */ | |
| case ioMIX: /* merge */ | |
| if ((lps_unit.flags & UNIT_DIAG) == 0) { /* real lpt? */ | |
| if (lps_power == LPS_ON) { /* power on? */ | |
| if (((lps_unit.flags & UNIT_ATT) == 0) || /* paper out? */ | |
| (lps_unit.flags & UNIT_OFFLINE) || /* offline? */ | |
| sim_is_active (&lps_unit)) lps_sta = LPS_BUSY; | |
| else lps_sta = 0; | |
| } | |
| else lps_sta = LPS_PWROFF; | |
| } | |
| dat = dat | lps_sta; /* diag, rtn status */ | |
| if (DEBUG_PRS (lps_dev)) | |
| fprintf (sim_deb, ">>LPS LIx: Status %06o returned\n", dat); | |
| break; | |
| case ioCTL: /* control clear/set */ | |
| if (IR & I_CTL) { /* CLC */ | |
| clrCMD (dev); /* clear ctl, cmd */ | |
| clrCTL (dev); | |
| } | |
| else { /* STC */ | |
| setCMD (dev); /* set ctl, cmd */ | |
| setCTL (dev); | |
| if (lps_unit.flags & UNIT_DIAG) /* diagnostic? */ | |
| sim_activate (&lps_unit, 1); /* loop back */ | |
| else { /* real lpt, sched */ | |
| if (DEBUG_PRS (lps_dev)) fprintf (sim_deb, | |
| ">>LPS STC: Character %06o scheduled for line %d, column %d, ", | |
| lps_unit.buf, lps_lcnt + 1, lps_ccnt + 1); | |
| if ((lps_unit.buf != '\f') && | |
| (lps_unit.buf != '\n') && | |
| (lps_unit.buf != '\r')) { /* normal char */ | |
| lps_ccnt = lps_ccnt + 1; /* incr char counter */ | |
| if (lps_ccnt % LPS_ZONECNT == 0) /* end of zone? */ | |
| sched = lps_ptime; /* print zone */ | |
| else sched = lps_ctime; /* xfer char */ | |
| } | |
| else { /* print cmd */ | |
| if (lps_ccnt % LPS_ZONECNT == 0) /* last zone printed? */ | |
| sched = lps_ctime; /* yes, so just char time */ | |
| else sched = lps_ptime; /* no, so print needed */ | |
| lps_ccnt = 0; /* reset char counter */ | |
| if (lps_unit.buf == '\n') { /* line advance */ | |
| lps_lcnt = (lps_lcnt + 1) % LPS_PAGELNT; | |
| if (lps_lcnt > 0) sched = sched + lps_stime; | |
| else sched = sched + /* allow for perf skip */ | |
| lps_stime * (LPS_FORMLNT - LPS_PAGELNT); | |
| } | |
| else if (lps_unit.buf == '\f') { /* form advance */ | |
| sched = sched + lps_stime * (LPS_FORMLNT - lps_lcnt); | |
| lps_lcnt = 0; | |
| } | |
| } | |
| sim_activate (&lps_unit, sched); | |
| if (DEBUG_PRS (lps_dev)) | |
| fprintf (sim_deb, "time = %d\n", sched); | |
| } | |
| } | |
| break; | |
| default: | |
| break; | |
| } | |
| if (IR & I_HC) { clrFSR (dev); } /* H/C option */ | |
| return dat; | |
| } | |
| /* Unit service */ | |
| t_stat lps_svc (UNIT *uptr) | |
| { | |
| int32 dev; | |
| int32 c = uptr->buf & 0177; | |
| if (lps_power == LPS_TURNING_ON) { /* printer warmed up? */ | |
| lps_power = LPS_ON; /* change state */ | |
| lps_restart (uptr, 0, NULL, NULL); /* restart I/O if hung */ | |
| if (DEBUG_PRS (lps_dev)) | |
| fputs (">>LPS svc: Power state is ON\n", sim_deb); | |
| return SCPE_OK; /* done */ | |
| } | |
| dev = lps_dib.devno; /* get dev no */ | |
| if (uptr->flags & UNIT_DIAG) { /* diagnostic? */ | |
| lps_sta = uptr->buf; /* loop back */ | |
| clrCMD (dev); /* clear cmd */ | |
| setFSR (dev); /* set flag, fbf */ | |
| return SCPE_OK; /* done */ | |
| } | |
| if ((uptr->flags & UNIT_ATT) == 0) /* attached? */ | |
| return IORETURN (lps_stopioe, SCPE_UNATT); | |
| else if (uptr->flags & UNIT_OFFLINE) /* offline? */ | |
| return IORETURN (lps_stopioe, STOP_OFFLINE); | |
| else if (uptr->flags & UNIT_POWEROFF) /* powered off? */ | |
| return IORETURN (lps_stopioe, STOP_PWROFF); | |
| clrCMD (dev); /* clear cmd */ | |
| setFSR (dev); /* set flag, fbf */ | |
| if (((c < ' ') || (c > '_')) && /* non-printing char? */ | |
| (c != '\f') && (c != '\n') && (c != '\r')) { | |
| if (DEBUG_PRS (lps_dev)) | |
| fprintf (sim_deb, ">>LPS svc: Character %06o erased\n", c); | |
| c = ' '; /* replace with blank */ | |
| } | |
| if (lps_ccnt > LPS_PAGECNT) { /* 81st character? */ | |
| fputc ('\r', uptr->fileref); /* return to line start */ | |
| uptr->pos = uptr->pos + 1; /* update pos */ | |
| lps_ccnt = 1; /* reset char counter */ | |
| if (DEBUG_PRS (lps_dev)) | |
| fputs (">>LPS svc: Line wraparound to column 1\n", sim_deb); | |
| } | |
| fputc (c, uptr->fileref); /* "print" char */ | |
| uptr->pos = uptr->pos + 1; /* update pos */ | |
| if (DEBUG_PRS (lps_dev)) | |
| fprintf (sim_deb, ">>LPS svc: Character %06o printed\n", c); | |
| if ((lps_lcnt == 0) && (c == '\n')) { /* LF did TOF? */ | |
| fputc ('\f', uptr->fileref); /* do perf skip */ | |
| uptr->pos = uptr->pos + 1; /* update pos */ | |
| if (DEBUG_PRS (lps_dev)) | |
| fputs (">>LPS svc: Perforation skip to TOF\n", sim_deb); | |
| } | |
| if (ferror (uptr->fileref)) { | |
| perror ("LPS I/O error"); | |
| clearerr (uptr->fileref); | |
| return SCPE_IOERR; | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Reset routine - called from SCP, flags in DIB */ | |
| t_stat lps_reset (DEVICE *dptr) | |
| { | |
| lps_dib.cmd = lps_dib.ctl = 0; /* clear cmd, ctl */ | |
| lps_dib.flg = lps_dib.fbf = lps_dib.srq = 1; /* set flg, fbf, srq */ | |
| lps_sta = lps_unit.buf = 0; | |
| lps_power = LPS_ON; /* power is on */ | |
| sim_cancel (&lps_unit); /* deactivate unit */ | |
| lps_set_timing (NULL, lps_timing, NULL, NULL); /* init timing set */ | |
| return SCPE_OK; | |
| } | |
| /* Restart I/O routine | |
| If I/O is started via STC, and the printer is powered off, offline, | |
| or out of paper, the CTL and CMD flip-flops will set, a service event | |
| will be scheduled, and the service routine will be entered. If | |
| STOP_IOE is not set, the I/O operation will "hang" at that point | |
| until the printer is powered on, set online, or paper is supplied | |
| (attached). | |
| If a pending operation is "hung" when this routine is called, it is | |
| restarted, which clears CTL and sets FBF and FLG, completing the | |
| original I/O request. | |
| */ | |
| t_stat lps_restart (UNIT *uptr, int32 value, char *cptr, void *desc) | |
| { | |
| if (lps_dib.cmd && lps_dib.ctl && !sim_is_active (uptr)) | |
| sim_activate (uptr, 0); /* reschedule I/O */ | |
| return SCPE_OK; | |
| } | |
| /* Printer power off */ | |
| t_stat lps_poweroff (UNIT *uptr, int32 value, char *cptr, void *desc) | |
| { | |
| lps_power = LPS_OFF; /* change state */ | |
| if (DEBUG_PRS (lps_dev)) fputs (">>LPS set: Power state is OFF\n", sim_deb); | |
| return SCPE_OK; | |
| } | |
| /* Printer power on */ | |
| t_stat lps_poweron (UNIT *uptr, int32 value, char *cptr, void *desc) | |
| { | |
| if (lps_unit.flags & UNIT_DIAG) { /* diag mode? */ | |
| lps_power = LPS_ON; /* no delay */ | |
| if (DEBUG_PRS (lps_dev)) | |
| fputs (">>LPS set: Power state is ON\n", sim_deb); | |
| } | |
| else { | |
| lps_power = LPS_TURNING_ON; /* change state */ | |
| lps_unit.flags |= UNIT_OFFLINE; /* set offline */ | |
| sim_activate (&lps_unit, lps_rtime); /* schedule ready */ | |
| if (DEBUG_PRS (lps_dev)) fprintf (sim_deb, | |
| ">>LPS set: Power state is TURNING ON, scheduled time = %d\n", | |
| lps_rtime ); | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Attach routine */ | |
| t_stat lps_attach (UNIT *uptr, char *cptr) | |
| { | |
| lps_ccnt = lps_lcnt = 0; /* top of form */ | |
| lps_restart (uptr, 0, NULL, NULL); /* restart I/O if hung */ | |
| return attach_unit (uptr, cptr); | |
| } | |
| /* Set printer timing */ | |
| t_stat lps_set_timing (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| int32 i; | |
| lps_timing = (val != 0); /* determine choice */ | |
| for (i = 0; i < (sizeof (lps_timers) / sizeof (lps_timers[0])); i++) | |
| *lps_timers[i] = lps_times[lps_timing][i]; /* assign times */ | |
| return SCPE_OK; | |
| } | |
| /* Show printer timing */ | |
| t_stat lps_show_timing (FILE *st, UNIT *uptr, int32 val, void *desc) | |
| { | |
| if (lps_timing) fputs ("fast timing", st); | |
| else fputs ("realistic timing", st); | |
| return SCPE_OK; | |
| } |