df6475181c
1. New Features 1.1 GRI-909 - This is a new simulator for the GRI-909. - It has been hand-tested; so far, no software has been discovered. 1.2 VAX - SET CPU CONHALT will cause a HALT instruction to return to the boot ROM console rather than to SIMH. SET CPU SIMHALT restores the default behavior. - BRB/W self at IPL 1F stops the simulator. This is the default behavior of VMS at exit. 1.3 PDP-18b - ATTACH -A PTR/PTP attaches the reader and punch in ASCII mode. In ASCII mode, the reader automatically sets the high order bit of incoming alphabetic data, and the punch clears the high order bit of outgoing data. 1.4 SCP - DO -V echoes commands from the file as they are executed. - Under Windows, execution priority is set BELOW_NORMAL when the simulator is running. 2. Release Notes 2.1 Bugs Fixed - PDP-11 CPU: fixed updating of MMR0 on a memory management error. - VAX FPA: changed function names to avoid conflict with C math library. - 1401 MT: read end of record generates group mark without word mark. - 1401 DP: fixed address generation and checking. - SCP: an EXIT within a DO command will cause the simulator to exit. 3. In Progress - Interdata 16b/32b: coded, not tested. - SDS 940: coded, not tested. - IBM 1620: coded, not tested. If you would like to help with the debugging of the untested simulators, they can be made available by special request.
266 lines
8.2 KiB
C
266 lines
8.2 KiB
C
/* pdp18b_tt1.c: 18b PDP's second Teletype
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Copyright (c) 1993-2002, 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
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be 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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tti1 keyboard
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tto1 teleprinter
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30-May-02 RMS Widened POS to 32b
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06-Jan-02 RMS Added enable/disable support
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30-Dec-01 RMS Added show statistics, set disconnect
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30-Nov-01 RMS Added extended SET/SHOW support
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25-Nov-01 RMS Revised interrupt structure
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19-Sep-01 RMS Fixed typo
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17-Sep-01 RMS Changed to use terminal multiplexor library
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07-Sep-01 RMS Moved function prototypes
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10-Jun-01 RMS Cleaned up IOT decoding to reflect hardware
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*/
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#include "pdp18b_defs.h"
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#include "sim_sock.h"
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#include "sim_tmxr.h"
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#include <ctype.h>
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#define UNIT_V_UC (UNIT_V_UF + 0) /* UC only */
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#define UNIT_UC (1 << UNIT_V_UC)
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extern int32 int_hwre[API_HLVL+1], dev_enb;
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extern int32 tmxr_poll; /* calibrated poll */
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TMLN tt1_ldsc = { 0 }; /* line descriptors */
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TMXR tt_desc = { 1, 0, &tt1_ldsc }; /* mux descriptor */
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t_stat tti1_svc (UNIT *uptr);
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t_stat tto1_svc (UNIT *uptr);
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t_stat tti1_reset (DEVICE *dptr);
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t_stat tto1_reset (DEVICE *dptr);
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t_stat tti1_attach (UNIT *uptr, char *cptr);
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t_stat tti1_detach (UNIT *uptr);
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t_stat tti1_summ (FILE *st, UNIT *uptr, int32 val, void *desc);
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t_stat tti1_show (FILE *st, UNIT *uptr, int32 val, void *desc);
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/* TTI1 data structures
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tti1_dev TTI1 device descriptor
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tti1_unit TTI1 unit
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tto1_mod TTI1 modifier list
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tti1_reg TTI1 register list
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*/
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UNIT tti1_unit = { UDATA (&tti1_svc, UNIT_ATTABLE+UNIT_UC, 0), KBD_POLL_WAIT };
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REG tti1_reg[] = {
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{ ORDATA (BUF, tti1_unit.buf, 8) },
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{ FLDATA (INT, int_hwre[API_TTI1], INT_V_TTI1) },
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{ FLDATA (DONE, int_hwre[API_TTI1], INT_V_TTI1) },
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{ FLDATA (UC, tti1_unit.flags, UNIT_V_UC), REG_HRO },
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{ DRDATA (POS, tt1_ldsc.rxcnt, 32), PV_LEFT },
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{ DRDATA (TIME, tti1_unit.wait, 24), REG_NZ + PV_LEFT },
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{ FLDATA (*DEVENB, dev_enb, ENB_V_TTI1), REG_HRO },
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{ NULL } };
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MTAB tti1_mod[] = {
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{ UNIT_UC, 0, "lower case", "LC", NULL },
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{ UNIT_UC, UNIT_UC, "upper case", "UC", NULL },
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{ UNIT_ATT, UNIT_ATT, "summary", NULL, NULL, &tti1_summ },
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{ MTAB_XTD | MTAB_VDV, 0, NULL, "DISCONNECT",
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&tmxr_dscln, NULL, &tt_desc },
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{ MTAB_XTD | MTAB_VDV | MTAB_NMO, 1, "CONNECTIONS", NULL,
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NULL, &tti1_show, NULL },
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{ MTAB_XTD | MTAB_VDV | MTAB_NMO, 0, "STATISTICS", NULL,
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NULL, &tti1_show, NULL },
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{ MTAB_XTD|MTAB_VDV, ENB_TTI1, NULL, "ENABLED", &set_enb },
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{ MTAB_XTD|MTAB_VDV, ENB_TTI1, NULL, "DISABLED", &set_dsb },
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{ 0 } };
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DEVICE tti1_dev = {
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"TTI1", &tti1_unit, tti1_reg, tti1_mod,
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1, 10, 31, 1, 8, 8,
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&tmxr_ex, &tmxr_dep, &tti1_reset,
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NULL, &tti1_attach, &tti1_detach };
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/* TTO1 data structures
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tto1_dev TTO1 device descriptor
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tto1_unit TTO1 unit
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tto1_mod TTO1 modifier list
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tto1_reg TTO1 register list
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*/
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UNIT tto1_unit = { UDATA (&tto1_svc, UNIT_UC, 0), SERIAL_OUT_WAIT };
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REG tto1_reg[] = {
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{ ORDATA (BUF, tto1_unit.buf, 8) },
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{ FLDATA (INT, int_hwre[API_TTO1], INT_V_TTO1) },
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{ FLDATA (DONE, int_hwre[API_TTO1], INT_V_TTO1) },
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{ DRDATA (POS, tt1_ldsc.txcnt, 32), PV_LEFT },
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{ DRDATA (TIME, tto1_unit.wait, 24), PV_LEFT },
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{ FLDATA (*DEVENB, dev_enb, ENB_V_TTI1), REG_HRO },
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{ NULL } };
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MTAB tto1_mod[] = {
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{ UNIT_UC, 0, "lower case", "LC", NULL },
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{ UNIT_UC, UNIT_UC, "upper case", "UC", NULL },
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{ 0 } };
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DEVICE tto1_dev = {
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"TTO1", &tto1_unit, tto1_reg, tto1_mod,
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1, 10, 31, 1, 8, 8,
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NULL, NULL, &tto1_reset,
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NULL, NULL, NULL };
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/* Terminal input: IOT routine */
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int32 tti1 (int32 pulse, int32 AC)
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{
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if (pulse & 001) { /* KSF1 */
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if (TST_INT (TTI1)) AC = AC | IOT_SKP; }
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if (pulse & 002) { /* KRB1 */
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CLR_INT (TTI1); /* clear flag */
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AC= AC | tti1_unit.buf; } /* return buffer */
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return AC;
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}
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/* Unit service */
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t_stat tti1_svc (UNIT *uptr)
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{
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int32 temp, newln;
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if (tt1_ldsc.conn) { /* connected? */
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tmxr_poll_rx (&tt_desc); /* poll for input */
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if (temp = tmxr_getc_ln (&tt1_ldsc)) { /* get char */
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temp = temp & 0177;
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if ((uptr -> flags & UNIT_UC) &&
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islower (temp)) temp = toupper (temp);
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uptr -> buf = temp | 0200; /* got char */
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SET_INT (TTI1); } /* set flag */
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sim_activate (uptr, uptr -> wait); } /* continue poll */
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if (uptr -> flags & UNIT_ATT) { /* attached? */
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newln = tmxr_poll_conn (&tt_desc, uptr); /* poll connect */
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if (newln >= 0) { /* got one? */
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sim_activate (&tti1_unit, tti1_unit.wait);
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tt1_ldsc.rcve = 1; } /* rcv enabled */
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sim_activate (uptr, tmxr_poll); } /* sched poll */
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return SCPE_OK;
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}
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/* Reset routine */
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t_stat tti1_reset (DEVICE *dptr)
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{
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tti1_unit.buf = 0; /* clear buffer */
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CLR_INT (TTI1); /* clear flag */
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if (tt1_ldsc.conn) { /* if conn, */
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sim_activate (&tti1_unit, tti1_unit.wait); /* activate, */
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tt1_ldsc.rcve = 1; } /* enable */
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else if (tti1_unit.flags & UNIT_ATT) /* if attached, */
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sim_activate (&tti1_unit, tmxr_poll); /* activate */
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else sim_cancel (&tti1_unit); /* else stop */
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return SCPE_OK;
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}
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/* Terminal output: IOT routine */
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int32 tto1 (int32 pulse, int32 AC)
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{
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if (pulse & 001) { /* TSF */
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if (TST_INT (TTO1)) AC = AC | IOT_SKP; }
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if (pulse & 002) CLR_INT (TTO1); /* clear flag */
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if (pulse & 004) { /* load buffer */
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sim_activate (&tto1_unit, tto1_unit.wait); /* activate unit */
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tto1_unit.buf = AC & 0377; } /* load buffer */
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return AC;
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}
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/* Unit service */
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t_stat tto1_svc (UNIT *uptr)
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{
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int32 out;
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SET_INT (TTO1); /* set flag */
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out = tto1_unit.buf & 0177;
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if (tt1_ldsc.conn) { /* connected? */
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if (tt1_ldsc.xmte) { /* tx enabled? */
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if (!(tto1_unit.flags & UNIT_UC) ||
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((out >= 007) && (out <= 0137)))
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tmxr_putc_ln (&tt1_ldsc, out); /* output char */
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tmxr_poll_tx (&tt_desc); } /* poll xmt */
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else { tmxr_poll_tx (&tt_desc); /* poll xmt */
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sim_activate (&tto1_unit, tmxr_poll); /* wait */
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return SCPE_OK; } }
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return SCPE_OK;
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}
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/* Reset routine */
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t_stat tto1_reset (DEVICE *dptr)
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{
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tto1_unit.buf = 0; /* clear buffer */
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CLR_INT (TTO1); /* clear flag */
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sim_cancel (&tto1_unit); /* deactivate unit */
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return SCPE_OK;
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}
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/* Attach routine */
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t_stat tti1_attach (UNIT *uptr, char *cptr)
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{
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t_stat r;
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r = tmxr_attach (&tt_desc, uptr, cptr); /* attach */
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if (r != SCPE_OK) return r; /* error */
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sim_activate (uptr, tmxr_poll); /* start poll */
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return SCPE_OK;
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}
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/* Detach routine */
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t_stat tti1_detach (UNIT *uptr)
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{
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t_stat r;
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r = tmxr_detach (&tt_desc, uptr); /* detach */
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tt1_ldsc.rcve = 0; /* disable rcv */
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sim_cancel (uptr); /* stop poll */
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return r;
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}
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/* Show summary processor */
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t_stat tti1_summ (FILE *st, UNIT *uptr, int32 val, void *desc)
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{
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if (tt1_ldsc.conn) fprintf (st, "connected");
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else fprintf (st, "disconnected");
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return SCPE_OK;
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}
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/* SHOW CONN/STAT processor */
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t_stat tti1_show (FILE *st, UNIT *uptr, int32 val, void *desc)
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{
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if (val) tmxr_fconns (st, &tt1_ldsc, -1);
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else tmxr_fstats (st, &tt1_ldsc, -1);
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return SCPE_OK;
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}
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