888 lines
32 KiB
C
888 lines
32 KiB
C
/* pdp18b_lp.c: 18b PDP's line printer simulator
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Copyright (c) 1993-2017, Robert M Supnik
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Robert M Supnik shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from Robert M Supnik.
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lp62 (PDP-4) Type 62 line printer
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lp647 (PDP-7,9) Type 647 line printer
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lp09 (PDP-9,15) LP09 line printer
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lp15 (PDP-15) LP15 line printer
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13-Mar-17 RMS Annotated fall throughs in switch
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10-Mar-16 RMS Added 3-cycle databreak set/show entry
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07-Mar-16 RMS Revised for dynamically allocated memory
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13-Sep-15 RMS Added APIVEC register
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19-Jan-07 RMS Added UNIT_TEXT flag
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11-Jun-06 RMS Made character translation table global scope
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14-Jan-04 RMS Revised IO device call interface
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23-Jul-03 RMS Fixed overprint bug in Type 62
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25-Apr-03 RMS Revised for extended file support
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05-Feb-03 RMS Added LP09, fixed conditionalization
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05-Oct-02 RMS Added DIB, device number support
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30-May-02 RMS Widened POS to 32b
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03-Feb-02 RMS Fixed typo (Robert Alan Byer)
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25-Nov-01 RMS Revised interrupt structure
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19-Sep-01 RMS Fixed bug in 647
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13-Feb-01 RMS Revised for register arrays
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15-Feb-01 RMS Fixed 3 cycle data break sequence
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30-Oct-00 RMS Standardized register naming
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20-Aug-98 RMS Fixed compilation problem in BeOS
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03-Jan-97 RMS Fixed bug in Type 62 state handling
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*/
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#include "pdp18b_defs.h"
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extern int32 int_hwre[API_HLVL+1];
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extern int32 api_vec[API_HLVL][32];
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const char fio_to_asc[64] = {
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' ','1','2','3','4','5','6','7','8','9','\'','~','#','V','^','<',
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'0','/','S','T','U','V','W','X','Y','Z','"',',','>','^','-','?',
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'o','J','K','L','M','N','O','P','Q','R','$','=','-',')','-','(',
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'_','A','B','C','D','E','F','G','H','I','*','.','+',']','|','['
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};
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#if defined (TYPE62)
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/* Type 62 line printer */
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#define LP62_BSIZE 120 /* line size */
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#define BPTR_MAX 40 /* pointer max */
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#define BPTR_MASK 077 /* buf ptr max */
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int32 lp62_spc = 0; /* print vs spc */
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int32 lp62_ovrpr = 0; /* overprint */
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int32 lp62_stopioe = 0;
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int32 lp62_bp = 0; /* buffer ptr */
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char lp62_buf[LP62_BSIZE + 1] = { 0 };
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static const char *lp62_cc[] = {
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"\n",
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"\n\n",
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"\n\n\n",
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"\n\n\n\n\n\n",
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"\n\n\n\n\n\n\n\n\n\n\n",
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"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
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"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
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"\f"
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};
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int32 lp62_65 (int32 dev, int32 pulse, int32 dat);
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int32 lp62_66 (int32 dev, int32 pulse, int32 dat);
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int32 lp62_iors (void);
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t_stat lp62_svc (UNIT *uptr);
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t_stat lp62_reset (DEVICE *dptr);
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/* Type 62 LPT data structures
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lp62_dev LPT device descriptor
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lp62_unit LPT unit
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lp62_reg LPT register list
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*/
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DIB lp62_dib = { DEV_LPT, 2, &lp62_iors, { &lp62_65, &lp62_66 } };
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UNIT lp62_unit = {
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UDATA (&lp62_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0), SERIAL_OUT_WAIT
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};
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REG lp62_reg[] = {
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{ ORDATAD (BUF, lp62_unit.buf, 8, "last data item processed") },
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{ FLDATAD (INT, int_hwre[API_LPT], INT_V_LPT, "interrupt pending flag") },
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{ FLDATAD (DONE, int_hwre[API_LPT], INT_V_LPT, "device done flag") },
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{ FLDATAD (SPC, int_hwre[API_LPTSPC], INT_V_LPTSPC, "spacing done flag") },
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{ DRDATAD (BPTR, lp62_bp, 6, "print buffer pointer") },
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{ ORDATA (STATE, lp62_spc, 6), REG_HRO },
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{ FLDATA (OVRPR, lp62_ovrpr, 0), REG_HRO },
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{ DRDATAD (POS, lp62_unit.pos, T_ADDR_W, "position in the output file"), PV_LEFT },
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{ DRDATAD (TIME, lp62_unit.wait, 24, "time from I/O initiation to interrupt"), PV_LEFT },
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{ FLDATAD (STOP_IOE, lp62_stopioe, 0, "stop on I/O error") },
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{ BRDATAD (LBUF, lp62_buf, 8, 8, LP62_BSIZE, "line buffer") },
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{ ORDATA (DEVNO, lp62_dib.dev, 6), REG_HRO },
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{ NULL }
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};
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MTAB lp62_mod[] = {
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{ MTAB_XTD|MTAB_VDV, 0, "DEVNO", "DEVNO", &set_devno, &show_devno },
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{ 0 }
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};
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DEVICE lp62_dev = {
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"LPT", &lp62_unit, lp62_reg, lp62_mod,
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1, 10, 31, 1, 8, 8,
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NULL, NULL, &lp62_reset,
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NULL, NULL, NULL,
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&lp62_dib, DEV_DISABLE
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};
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/* IOT routines */
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int32 lp62_65 (int32 dev, int32 pulse, int32 dat)
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{
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int32 i;
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if ((pulse & 01) && TST_INT (LPT)) /* LPSF */
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dat = IOT_SKP | dat;
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if (pulse & 02) {
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int32 sb = pulse & 060; /* subopcode */
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if (sb == 000) /* LPCF */
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CLR_INT (LPT);
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if ((sb == 040) && (lp62_bp < BPTR_MAX)) { /* LPLD */
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i = lp62_bp * 3; /* cvt to chr ptr */
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lp62_buf[i] = fio_to_asc[(dat >> 12) & 077];
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lp62_buf[i + 1] = fio_to_asc[(dat >> 6) & 077];
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lp62_buf[i + 2] = fio_to_asc[dat & 077];
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lp62_bp = (lp62_bp + 1) & BPTR_MASK;
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}
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}
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if (pulse & 04) { /* LPSE */
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lp62_spc = 0; /* print */
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sim_activate (&lp62_unit, lp62_unit.wait); /* activate */
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}
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return dat;
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}
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int32 lp62_66 (int32 dev, int32 pulse, int32 dat)
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{
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if ((pulse & 01) && TST_INT (LPTSPC)) /* LSSF */
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dat = IOT_SKP | dat;
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if (pulse & 02) /* LSCF */
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CLR_INT (LPTSPC);
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if (pulse & 04) { /* LSPR */
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lp62_spc = 020 | (dat & 07); /* space */
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sim_activate (&lp62_unit, lp62_unit.wait); /* activate */
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}
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return dat;
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}
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/* Unit service, action based on lp62_spc
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lp62_spc = 0 write buffer to file, set overprint
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lp62_spc = 2x space command x, clear overprint
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*/
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t_stat lp62_svc (UNIT *uptr)
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{
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int32 i;
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if (lp62_spc) { /* space? */
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SET_INT (LPTSPC); /* set flag */
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if ((uptr->flags & UNIT_ATT) == 0) /* attached? */
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return IORETURN (lp62_stopioe, SCPE_UNATT);
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fputs (lp62_cc[lp62_spc & 07], uptr->fileref); /* print cctl */
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uptr->pos = ftell (uptr->fileref); /* update position */
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if (ferror (uptr->fileref)) { /* error? */
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sim_perror ("LPT I/O error");
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clearerr (uptr->fileref);
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return SCPE_IOERR;
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}
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lp62_ovrpr = 0; /* clear overprint */
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}
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else {
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SET_INT (LPT); /* print */
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if ((uptr->flags & UNIT_ATT) == 0) /* attached? */
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return IORETURN (lp62_stopioe, SCPE_UNATT);
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if (lp62_ovrpr) /* overprint? */
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fputc ('\r', uptr->fileref);
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fputs (lp62_buf, uptr->fileref); /* print buffer */
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uptr->pos = ftell (uptr->fileref); /* update position */
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if (ferror (uptr->fileref)) { /* test error */
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sim_perror ("LPT I/O error");
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clearerr (uptr->fileref);
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return SCPE_IOERR;
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}
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lp62_bp = 0;
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for (i = 0; i <= LP62_BSIZE; i++) /* clear buffer */
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lp62_buf[i] = 0;
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lp62_ovrpr = 1; /* set overprint */
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}
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return SCPE_OK;
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}
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/* Reset routine */
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t_stat lp62_reset (DEVICE *dptr)
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{
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int32 i;
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CLR_INT (LPT); /* clear intrs */
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CLR_INT (LPTSPC);
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sim_cancel (&lp62_unit); /* deactivate unit */
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lp62_bp = 0; /* clear buffer ptr */
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for (i = 0; i <= LP62_BSIZE; i++) /* clear buffer */
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lp62_buf[i] = 0;
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lp62_spc = 0; /* clear state */
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lp62_ovrpr = 0; /* clear overprint */
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return SCPE_OK;
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}
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/* IORS routine */
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int32 lp62_iors (void)
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{
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return (TST_INT (LPT)? IOS_LPT: 0) |
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(TST_INT (LPTSPC)? IOS_LPT1: 0);
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}
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#endif
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#if defined (TYPE647)
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/* Type 647 line printer */
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#define LP647_BSIZE 120 /* line size */
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int32 lp647_don = 0; /* ready */
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int32 lp647_ie = 1; /* int enable */
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int32 lp647_err = 0; /* error */
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int32 lp647_iot = 0; /* saved state */
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int32 lp647_stopioe = 0;
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int32 lp647_bp = 0; /* buffer ptr */
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char lp647_buf[LP647_BSIZE] = { 0 };
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static const char *lp647_cc[] = {
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"\n",
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"\n\n",
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"\n\n\n",
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"\n\n\n\n\n\n",
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"\n\n\n\n\n\n\n\n\n\n\n",
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"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
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"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
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"\f"
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};
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int32 lp647_65 (int32 dev, int32 pulse, int32 dat);
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int32 lp647_66 (int32 dev, int32 pulse, int32 dat);
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int32 lp647_iors (void);
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t_stat lp647_svc (UNIT *uptr);
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t_stat lp647_reset (DEVICE *dptr);
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t_stat lp647_attach (UNIT *uptr, CONST char *cptr);
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t_stat lp647_detach (UNIT *uptr);
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/* Type 647 LPT data structures
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lp647_dev LPT device descriptor
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lp647_unit LPT unit
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lp647_reg LPT register list
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*/
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DIB lp647_dib = { DEV_LPT, 2, &lp647_iors, { &lp647_65, &lp647_66 } };
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UNIT lp647_unit = {
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UDATA (&lp647_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0), SERIAL_OUT_WAIT
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};
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REG lp647_reg[] = {
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{ ORDATAD (BUF, lp647_unit.buf, 8, "last data item processed") },
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{ FLDATAD (INT, int_hwre[API_LPT], INT_V_LPT, "interrupt pending flag") },
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{ FLDATAD (DONE, lp647_don, 0, "device done flag") },
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#if defined (PDP9)
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{ FLDATAD (ENABLE, lp647_ie, 0, "interrupt enable") },
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#endif
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{ FLDATAD (ERR, lp647_err, 0, "error flag") },
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{ DRDATAD (BPTR, lp647_bp, 7, "print buffer pointer") },
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{ ORDATA (SCMD, lp647_iot, 6), REG_HRO },
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{ DRDATAD (POS, lp647_unit.pos, T_ADDR_W, "position in the output file"), PV_LEFT },
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{ DRDATAD (TIME, lp647_unit.wait, 24, "time from I/O initiation to interrupt"), PV_LEFT },
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{ FLDATAD (STOP_IOE, lp647_stopioe, 0, "stop on I/O error") },
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{ BRDATAD (LBUF, lp647_buf, 8, 8, LP647_BSIZE, "line buffer") },
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{ ORDATA (DEVNO, lp647_dib.dev, 6), REG_HRO },
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{ NULL }
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};
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MTAB lp647_mod[] = {
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{ MTAB_XTD|MTAB_VDV, 0, "DEVNO", "DEVNO", &set_devno, &show_devno },
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{ 0 }
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};
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DEVICE lp647_dev = {
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"LPT", &lp647_unit, lp647_reg, lp647_mod,
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1, 10, 31, 1, 8, 8,
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NULL, NULL, &lp647_reset,
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NULL, &lp647_attach, &lp647_detach,
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&lp647_dib, DEV_DISABLE
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};
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/* IOT routines */
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int32 lp647_65 (int32 dev, int32 pulse, int32 dat)
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{
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int32 i, sb;
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sb = pulse & 060; /* subcode */
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if ((pulse & 01) && lp647_don) /* LPSF */
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dat = IOT_SKP | dat;
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if (pulse & 02) { /* pulse 02 */
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lp647_don = 0; /* clear done */
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CLR_INT (LPT); /* clear int req */
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if (sb == 000) { /* LPCB */
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for (i = 0; i < LP647_BSIZE; i++)
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lp647_buf[i] = 0;
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lp647_bp = 0; /* reset buf ptr */
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lp647_don = 1; /* set done */
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if (lp647_ie) /* set int */
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SET_INT (LPT);
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}
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}
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if (pulse & 004) { /* LPDI */
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switch (sb) { /* case on subcode */
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case 000: /* LPDI */
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#if defined (PDP9)
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lp647_ie = 0; /* clear int enable */
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CLR_INT (LPT); /* clear int req */
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#endif
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break;
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case 040: /* LPB3 */
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if (lp647_bp < LP647_BSIZE) {
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lp647_buf[lp647_bp] = lp647_buf[lp647_bp] | ((dat >> 12) & 077);
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lp647_bp = lp647_bp + 1;
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}
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/* fall through */
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case 020: /* LPB2 */
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if (lp647_bp < LP647_BSIZE) {
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lp647_buf[lp647_bp] = lp647_buf[lp647_bp] | ((dat >> 6) & 077);
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lp647_bp = lp647_bp + 1;
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}
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/* fall through */
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case 060: /* LPB1 */
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if (lp647_bp < LP647_BSIZE) {
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lp647_buf[lp647_bp] = lp647_buf[lp647_bp] | (dat & 077);
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lp647_bp = lp647_bp + 1;
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}
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lp647_don = 1; /* set done */
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if (lp647_ie) /* set int */
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SET_INT (LPT);
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break;
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} /* end case */
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}
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return dat;
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}
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int32 lp647_66 (int32 dev, int32 pulse, int32 dat)
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{
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if ((pulse & 01) && lp647_err) /* LPSE */
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dat = IOT_SKP | dat;
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if (pulse & 02) { /* LPCF */
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lp647_don = 0; /* clear done, int */
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CLR_INT (LPT);
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}
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if (pulse & 04) {
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if ((pulse & 060) < 060) { /* LPLS, LPPB, LPPS */
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lp647_iot = (pulse & 060) | (dat & 07); /* save parameters */
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sim_activate (&lp647_unit, lp647_unit.wait); /* activate */
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}
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#if defined (PDP9)
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else { /* LPEI */
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lp647_ie = 1; /* set int enable */
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if (lp647_don)
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SET_INT (LPT);
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}
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#endif
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}
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return dat;
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}
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/* Unit service. lp647_iot specifies the action to be taken
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lp647_iot = 0x print only
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lp647_iot = 2x space only, x is spacing command
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lp647_iot = 4x print then space, x is spacing command
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*/
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t_stat lp647_svc (UNIT *uptr)
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{
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int32 i;
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char pbuf[LP647_BSIZE + 2];
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lp647_don = 1;
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if (lp647_ie) /* set flag */
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SET_INT (LPT);
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if ((uptr->flags & UNIT_ATT) == 0) { /* not attached? */
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lp647_err = 1; /* set error */
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return IORETURN (lp647_stopioe, SCPE_UNATT);
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}
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if ((lp647_iot & 020) == 0) { /* print? */
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for (i = 0; i < lp647_bp; i++) /* translate buffer */
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pbuf[i] = lp647_buf[i] | ((lp647_buf[i] >= 040)? 0: 0100);
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if ((lp647_iot & 060) == 0)
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pbuf[lp647_bp++] = '\r';
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pbuf[lp647_bp++] = 0; /* append nul */
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for (i = 0; i < LP647_BSIZE; i++) /* clear buffer */
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lp647_buf[i] = 0;
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fputs (pbuf, uptr->fileref); /* print buffer */
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uptr->pos = ftell (uptr->fileref); /* update position */
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if (ferror (uptr->fileref)) { /* error? */
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sim_perror ("LPT I/O error");
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clearerr (uptr->fileref);
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lp647_bp = 0;
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return SCPE_IOERR;
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}
|
|
lp647_bp = 0; /* clear buffer ptr */
|
|
}
|
|
if (lp647_iot & 060) { /* space? */
|
|
fputs (lp647_cc[lp647_iot & 07], uptr->fileref); /* write cctl */
|
|
uptr->pos = ftell (uptr->fileref); /* update position */
|
|
if (ferror (uptr->fileref)) { /* error? */
|
|
sim_perror ("LPT I/O error");
|
|
clearerr (uptr->fileref);
|
|
return SCPE_IOERR;
|
|
}
|
|
}
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Reset routine */
|
|
|
|
t_stat lp647_reset (DEVICE *dptr)
|
|
{
|
|
int32 i;
|
|
|
|
lp647_don = 0; /* clear done */
|
|
lp647_err = (lp647_unit.flags & UNIT_ATT)? 0: 1; /* clr/set error */
|
|
lp647_ie = 1; /* set enable */
|
|
CLR_INT (LPT); /* clear int */
|
|
sim_cancel (&lp647_unit); /* deactivate unit */
|
|
lp647_bp = 0; /* clear buffer ptr */
|
|
lp647_iot = 0; /* clear state */
|
|
for (i = 0; i < LP647_BSIZE; i++) /* clear buffer */
|
|
lp647_buf[i] = 0;
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* IORS routine */
|
|
|
|
int32 lp647_iors (void)
|
|
{
|
|
return (lp647_don? IOS_LPT: 0) | (lp647_err? IOS_LPT1: 0);
|
|
}
|
|
|
|
/* Attach routine */
|
|
|
|
t_stat lp647_attach (UNIT *uptr, CONST char *cptr)
|
|
{
|
|
t_stat reason;
|
|
|
|
reason = attach_unit (uptr, cptr);
|
|
lp647_err = (lp647_unit.flags & UNIT_ATT)? 0: 1; /* clr/set error */
|
|
return reason;
|
|
}
|
|
|
|
/* Detach routine */
|
|
|
|
t_stat lp647_detach (UNIT *uptr)
|
|
{
|
|
lp647_err = 1;
|
|
return detach_unit (uptr);
|
|
}
|
|
|
|
#endif
|
|
|
|
#if defined (LP09)
|
|
|
|
/* LP09 line printer */
|
|
|
|
#define LP09_BSIZE 132 /* line size */
|
|
|
|
int32 lp09_don = 0; /* ready */
|
|
int32 lp09_err = 0; /* error */
|
|
int32 lp09_ie = 1; /* int enable */
|
|
int32 lp09_stopioe = 0;
|
|
|
|
int32 lp09_66 (int32 dev, int32 pulse, int32 dat);
|
|
int32 lp09_iors (void);
|
|
t_stat lp09_svc (UNIT *uptr);
|
|
t_stat lp09_reset (DEVICE *dptr);
|
|
t_stat lp09_attach (UNIT *uptr, CONST char *cptr);
|
|
t_stat lp09_detach (UNIT *uptr);
|
|
|
|
/* LP09 LPT data structures
|
|
|
|
lp09_dev LPT device descriptor
|
|
lp09_unit LPT unit
|
|
lp09_reg LPT register list
|
|
*/
|
|
|
|
DIB lp09_dib = { DEV_LPT, 2, &lp09_iors, { NULL, &lp09_66 } };
|
|
|
|
UNIT lp09_unit = {
|
|
UDATA (&lp09_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0), SERIAL_OUT_WAIT
|
|
};
|
|
|
|
REG lp09_reg[] = {
|
|
{ ORDATAD (BUF, lp09_unit.buf, 7, "last data item processed") },
|
|
{ FLDATAD (INT, int_hwre[API_LPT], INT_V_LPT, "interrupt pending flag") },
|
|
{ FLDATAD (DONE, lp09_don, 0, "device done flag") },
|
|
{ FLDATAD (ENABLE, lp09_ie, 0, "interrupt enable") },
|
|
{ FLDATAD (ERR, lp09_err, 0, "error flag") },
|
|
{ DRDATAD (POS, lp09_unit.pos, T_ADDR_W, "position in the output file"), PV_LEFT },
|
|
{ DRDATAD (TIME, lp09_unit.wait, 24, "time from initiation to inturrupt"), PV_LEFT },
|
|
{ FLDATAD (STOP_IOE, lp09_stopioe, 0, "stop on I/O error") },
|
|
{ ORDATA (DEVNO, lp09_dib.dev, 6), REG_HRO },
|
|
{ ORDATA (APIVEC, api_vec[API_LPT][INT_V_LPT], 6), REG_HRO },
|
|
{ NULL }
|
|
};
|
|
|
|
MTAB lp09_mod[] = {
|
|
{ MTAB_XTD|MTAB_VDV, 0, "DEVNO", "DEVNO", &set_devno, &show_devno },
|
|
{ 0 }
|
|
};
|
|
|
|
DEVICE lp09_dev = {
|
|
"LP9", &lp09_unit, lp09_reg, lp09_mod,
|
|
1, 10, 31, 1, 8, 8,
|
|
NULL, NULL, &lp09_reset,
|
|
NULL, &lp09_attach, &lp09_detach,
|
|
&lp09_dib, DEV_DISABLE | DEV_DIS
|
|
};
|
|
|
|
/* IOT routines */
|
|
|
|
int32 lp09_66 (int32 dev, int32 pulse, int32 dat)
|
|
{
|
|
int32 sb = pulse & 060; /* subopcode */
|
|
|
|
if (pulse & 001) {
|
|
if ((sb == 000) && lp09_don) /* LSDF */
|
|
dat = IOT_SKP | dat;
|
|
if ((sb == 020) && lp09_err) /* LSEF */
|
|
dat = IOT_SKP | dat;
|
|
}
|
|
if (pulse & 002) {
|
|
if (sb == 000) { /* LSCF */
|
|
lp09_don = 0; /* clear done, int */
|
|
CLR_INT (LPT);
|
|
}
|
|
else if (sb == 020) { /* LPLD */
|
|
lp09_don = 0; /* clear done, int */
|
|
CLR_INT (LPT);
|
|
lp09_unit.buf = dat & 0177; /* load char */
|
|
if ((lp09_unit.buf == 015) || (lp09_unit.buf == 014) ||
|
|
(lp09_unit.buf == 012))
|
|
sim_activate (&lp09_unit, lp09_unit.wait);
|
|
else dat = dat | (lp09_svc (&lp09_unit) << IOT_V_REASON);
|
|
}
|
|
}
|
|
if (pulse & 004) {
|
|
if (sb == 000) { /* LIOF */
|
|
lp09_ie = 0; /* clear int enab */
|
|
CLR_INT (LPT); /* clear int */
|
|
}
|
|
else if (sb == 040) { /* LION */
|
|
lp09_ie = 1; /* set int enab */
|
|
if (lp09_don) /* if done, set int */
|
|
SET_INT (LPT);
|
|
}
|
|
}
|
|
return dat;
|
|
}
|
|
|
|
/* Unit service */
|
|
|
|
t_stat lp09_svc (UNIT *uptr)
|
|
{
|
|
int32 c;
|
|
|
|
lp09_don = 1; /* set done */
|
|
if (lp09_ie) /* int enb? req int */
|
|
SET_INT (LPT);
|
|
if ((uptr->flags & UNIT_ATT) == 0) { /* not attached? */
|
|
lp09_err = 1; /* set error */
|
|
return IORETURN (lp09_stopioe, SCPE_UNATT);
|
|
}
|
|
c = uptr->buf & 0177; /* get char */
|
|
if ((c == 0) || (c == 0177)) /* skip NULL, DEL */
|
|
return SCPE_OK;
|
|
fputc (c, uptr->fileref); /* print char */
|
|
uptr->pos = ftell (uptr->fileref); /* update position */
|
|
if (ferror (uptr->fileref)) { /* error? */
|
|
sim_perror ("LPT I/O error");
|
|
clearerr (uptr->fileref);
|
|
return SCPE_IOERR;
|
|
}
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Reset routine */
|
|
|
|
t_stat lp09_reset (DEVICE *dptr)
|
|
{
|
|
lp09_don = 0; /* clear done */
|
|
lp09_err = (lp09_unit.flags & UNIT_ATT)? 0: 1; /* compute error */
|
|
lp09_ie = 1; /* set enable */
|
|
CLR_INT (LPT); /* clear int */
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* IORS routine */
|
|
|
|
int32 lp09_iors (void)
|
|
{
|
|
return (lp09_don? IOS_LPT: 0);
|
|
}
|
|
|
|
/* Attach routine */
|
|
|
|
t_stat lp09_attach (UNIT *uptr, CONST char *cptr)
|
|
{
|
|
t_stat reason;
|
|
|
|
reason = attach_unit (uptr, cptr);
|
|
lp09_err = (lp09_unit.flags & UNIT_ATT)? 0: 1; /* clr/set error */
|
|
return reason;
|
|
}
|
|
|
|
/* Detach routine */
|
|
|
|
t_stat lp09_detach (UNIT *uptr)
|
|
{
|
|
lp09_err = 1;
|
|
return detach_unit (uptr);
|
|
}
|
|
|
|
#endif
|
|
|
|
#if defined (LP15)
|
|
|
|
/* LP15 line printer */
|
|
|
|
#define LP15_BSIZE 132 /* line size */
|
|
#define LPT_CA 035 /* current addr */
|
|
|
|
/* Status register */
|
|
|
|
#define STA_ERR 0400000 /* error */
|
|
#define STA_ALM 0200000 /* alarm */
|
|
#define STA_OVF 0100000 /* line overflow */
|
|
#define STA_IHT 0040000 /* illegal HT */
|
|
#define STA_BUSY 0020000 /* busy */
|
|
#define STA_DON 0010000 /* done */
|
|
#define STA_ILK 0004000 /* interlock */
|
|
#define STA_EFLGS (STA_ALM | STA_OVF | STA_IHT | STA_ILK)
|
|
#define STA_CLR 0003777 /* always clear */
|
|
|
|
extern int32 *M;
|
|
int32 lp15_sta = 0;
|
|
int32 lp15_ie = 1;
|
|
int32 lp15_stopioe = 0;
|
|
int32 lp15_mode = 0;
|
|
int32 lp15_lc = 0;
|
|
int32 lp15_bp = 0;
|
|
char lp15_buf[LP15_BSIZE + 1] = { 0 };
|
|
|
|
int32 lp15_65 (int32 dev, int32 pulse, int32 dat);
|
|
int32 lp15_66 (int32 dev, int32 pulse, int32 dat);
|
|
int32 lp15_iors (void);
|
|
t_stat lp15_svc (UNIT *uptr);
|
|
t_stat lp15_reset (DEVICE *dptr);
|
|
|
|
int32 lp15_updsta (int32 New);
|
|
|
|
/* LP15 LPT data structures
|
|
|
|
lp15_dev LPT device descriptor
|
|
lp15_unit LPT unit
|
|
lp15_reg LPT register list
|
|
*/
|
|
|
|
DIB lp15_dib = { DEV_LPT, 2, &lp15_iors, { &lp15_65, &lp15_66 } };
|
|
|
|
UNIT lp15_unit = {
|
|
UDATA (&lp15_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_TEXT, 0), SERIAL_OUT_WAIT
|
|
};
|
|
|
|
REG lp15_reg[] = {
|
|
{ ORDATAD (STA, lp15_sta, 18, "status register") },
|
|
{ FLDATAD (INT, int_hwre[API_LPT], INT_V_LPT, "interrupt pending flag") },
|
|
{ FLDATAD (ENABLE, lp15_ie, 0, "interrupt enable") },
|
|
{ DRDATAD (LCNT, lp15_lc, 9, "line counter") },
|
|
{ DRDATAD (BPTR, lp15_bp, 8, "print buffer pointer") },
|
|
{ FLDATAD (MODE, lp15_mode, 0, "mode flag") },
|
|
{ DRDATAD (POS, lp15_unit.pos, T_ADDR_W, "position in the output file"), PV_LEFT },
|
|
{ DRDATAD (TIME, lp15_unit.wait, 24, "time from I/O initiation to interrupt"), PV_LEFT },
|
|
{ FLDATAD (STOP_IOE, lp15_stopioe, 0, "stop on I/O error") },
|
|
{ BRDATAD (LBUF, lp15_buf, 8, 8, LP15_BSIZE, "line buffer") },
|
|
{ ORDATA (DEVNO, lp15_dib.dev, 6), REG_HRO },
|
|
{ ORDATA (APIVEC, api_vec[API_LPT][INT_V_LPT], 6), REG_HRO },
|
|
{ NULL }
|
|
};
|
|
|
|
MTAB lp15_mod[] = {
|
|
{ MTAB_XTD|MTAB_VDV|MTAB_NMO, LPT_CA, "CA", "CA", &set_3cyc_reg, &show_3cyc_reg, (void *)"CA" },
|
|
{ MTAB_XTD|MTAB_VDV, 0, "DEVNO", "DEVNO", &set_devno, &show_devno },
|
|
{ 0 }
|
|
};
|
|
|
|
DEVICE lp15_dev = {
|
|
"LPT", &lp15_unit, lp15_reg, lp15_mod,
|
|
1, 10, 31, 1, 8, 8,
|
|
NULL, NULL, &lp15_reset,
|
|
NULL, NULL, NULL,
|
|
&lp15_dib, DEV_DISABLE
|
|
};
|
|
|
|
/* IOT routines */
|
|
|
|
int32 lp15_65 (int32 dev, int32 pulse, int32 dat)
|
|
{
|
|
int32 header, sb;
|
|
|
|
sb = pulse & 060; /* subopcode */
|
|
if (pulse & 01) {
|
|
if ((sb == 000) && (lp15_sta & (STA_ERR | STA_DON))) /* LPSF */
|
|
dat = IOT_SKP | dat;
|
|
else if ((sb == 020) || (sb == 040)) { /* LPP1, LPPM */
|
|
sim_activate (&lp15_unit, lp15_unit.wait); /* activate */
|
|
header = M[(M[LPT_CA] + 1) & AMASK]; /* get first word */
|
|
M[LPT_CA] = (M[LPT_CA] + 2) & DMASK;
|
|
lp15_mode = header & 1; /* mode */
|
|
if (sb == 040) /* line count */
|
|
lp15_lc = 1;
|
|
else lp15_lc = (header >> 9) & 0377;
|
|
if (lp15_lc == 0)
|
|
lp15_lc = 256;
|
|
lp15_bp = 0; /* reset buf ptr */
|
|
}
|
|
else if (sb == 060) /* LPDI */
|
|
lp15_ie = 0;
|
|
}
|
|
if ((pulse & 02) && (sb == 040)) /* LPOS, LPRS */
|
|
dat = dat | lp15_updsta (0);
|
|
if ((pulse & 04) && (sb == 040)) /* LPEI */
|
|
lp15_ie = 1;
|
|
lp15_updsta (0); /* update status */
|
|
return dat;
|
|
}
|
|
|
|
int32 lp15_66 (int32 dev, int32 pulse, int32 dat)
|
|
{
|
|
if (pulse == 021) /* LPCD */
|
|
lp15_sta = lp15_sta & ~STA_DON;
|
|
if (pulse == 041) /* LPCF */
|
|
lp15_sta = 0;
|
|
lp15_updsta (0); /* update status */
|
|
return dat;
|
|
}
|
|
|
|
/* Unit service */
|
|
|
|
t_stat lp15_svc (UNIT *uptr)
|
|
{
|
|
int32 i, ccnt, more, w0, w1;
|
|
char c[5];
|
|
static const char *ctrl[040] = {
|
|
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
|
|
NULL, NULL, "\n", "\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
|
|
"\f", "\r", NULL, NULL,
|
|
"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n",
|
|
"\n\n", "\n\n\n", "\n",
|
|
"\n\n\n\n\n\n\n\n\n\n", NULL, NULL, NULL,
|
|
NULL, NULL, NULL, "\r", NULL, NULL, NULL, NULL
|
|
};
|
|
|
|
if ((uptr->flags & UNIT_ATT) == 0) { /* not attached? */
|
|
lp15_updsta (STA_DON | STA_ALM); /* set done, err */
|
|
return IORETURN (lp15_stopioe, SCPE_UNATT);
|
|
}
|
|
|
|
for (more = 1; more != 0; ) { /* loop until ctrl */
|
|
w0 = M[(M[LPT_CA] + 1) & AMASK]; /* get first word */
|
|
w1 = M[(M[LPT_CA] + 2) & AMASK]; /* get second word */
|
|
M[LPT_CA] = (M[LPT_CA] + 2) & DMASK; /* advance mem addr */
|
|
if (lp15_mode) { /* unpacked? */
|
|
c[0] = w0 & 0177;
|
|
c[1] = w1 & 0177;
|
|
ccnt = 2;
|
|
}
|
|
else { /* packed */
|
|
c[0] = (w0 >> 11) & 0177;
|
|
c[1] = (w0 >> 4) & 0177;
|
|
c[2] = (((w0 << 3) | (w1 >> 15))) & 0177;
|
|
c[3] = (w1 >> 8) & 0177;
|
|
c[4] = (w1 >> 1) & 0177;
|
|
ccnt = 5;
|
|
}
|
|
for (i = 0; i < ccnt; i++) { /* loop through */
|
|
if ((c[i] <= 037) && ctrl[c[i]]) { /* control char? */
|
|
lp15_buf[lp15_bp] = 0; /* append nul */
|
|
fputs (lp15_buf, uptr->fileref); /* print line */
|
|
fputs (ctrl[c[i]], uptr->fileref); /* space */
|
|
uptr->pos = ftell (uptr->fileref);
|
|
if (ferror (uptr->fileref)) { /* error? */
|
|
sim_perror ("LPT I/O error");
|
|
clearerr (uptr->fileref);
|
|
lp15_bp = 0;
|
|
lp15_updsta (STA_DON | STA_ALM);
|
|
return SCPE_IOERR;
|
|
}
|
|
lp15_bp = more = 0;
|
|
}
|
|
else {
|
|
if (lp15_bp < LP15_BSIZE)
|
|
lp15_buf[lp15_bp++] = c[i];
|
|
else lp15_sta = lp15_sta | STA_OVF;
|
|
}
|
|
}
|
|
}
|
|
|
|
lp15_lc = lp15_lc - 1; /* decr line count */
|
|
if (lp15_lc) /* more to do? */
|
|
sim_activate (&lp15_unit, uptr->wait);
|
|
else lp15_updsta (STA_DON); /* no, set done */
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* Update status */
|
|
|
|
int32 lp15_updsta (int32 New)
|
|
{
|
|
lp15_sta = (lp15_sta | New) & ~(STA_CLR | STA_ERR | STA_BUSY);
|
|
if (lp15_sta & STA_EFLGS) /* update errors */
|
|
lp15_sta = lp15_sta | STA_ERR;
|
|
if (sim_is_active (&lp15_unit))
|
|
lp15_sta = lp15_sta | STA_BUSY;
|
|
if (lp15_ie && (lp15_sta & STA_DON))
|
|
SET_INT (LPT);
|
|
else CLR_INT (LPT); /* update int */
|
|
return lp15_sta;
|
|
}
|
|
|
|
/* Reset routine */
|
|
|
|
t_stat lp15_reset (DEVICE *dptr)
|
|
{
|
|
lp15_mode = lp15_lc = lp15_bp = 0; /* clear controls */
|
|
sim_cancel (&lp15_unit); /* deactivate unit */
|
|
lp15_sta = 0; /* clear status */
|
|
lp15_ie = 1; /* enable interrupts */
|
|
lp15_updsta (0); /* update status */
|
|
return SCPE_OK;
|
|
}
|
|
|
|
/* IORS routine */
|
|
|
|
int32 lp15_iors (void)
|
|
{
|
|
return ((lp15_sta & STA_DON)? IOS_LPT: 0);
|
|
}
|
|
|
|
#endif
|