5531ccb175
These changes facilitate more robust parameter type checking and helps to identify unexpected coding errors. Most simulators can now also be compiled with a C++ compiler without warnings. Additionally, these changes have also been configured to facilitate easier backporting of simulator and device simulation modules to run under the simh v3.9+ SCP framework.
336 lines
12 KiB
C
336 lines
12 KiB
C
/* nova_tt1.c: NOVA second terminal simulator
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Copyright (c) 1993-2008, Robert M. Supnik
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Written by Bruce Ray and used with his gracious permission.
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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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tti1 second terminal input
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tto1 second terminal output
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19-Nov-08 RMS Revised for common TMXR show routines
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09-May-03 RMS Added network device flag
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05-Jan-03 RMS Fixed calling sequence for setmod
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03-Oct-02 RMS Added DIBs
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22-Aug-02 RMS Updated for changes in sim_tmxr
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30-May-02 RMS Widened POS to 32b
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06-Jan-02 RMS Revised 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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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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31-May-01 RMS Added multiconsole support
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26-Apr-01 RMS Added device enable/disable support
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*/
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#include "nova_defs.h"
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#include "sim_sock.h"
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#include "sim_tmxr.h"
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#define UNIT_V_DASHER (UNIT_V_UF + 0) /* Dasher mode */
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#define UNIT_DASHER (1 << UNIT_V_DASHER)
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extern int32 int_req, dev_busy, dev_done, dev_disable;
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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, 0, &tt1_ldsc }; /* mux descriptor */
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int32 tti1 (int32 pulse, int32 code, int32 AC);
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int32 tto1 (int32 pulse, int32 code, int32 AC);
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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 ttx1_setmod (UNIT *uptr, int32 val, CONST char *cptr, void *desc);
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t_stat tti1_attach (UNIT *uptr, CONST char *cptr);
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t_stat tti1_detach (UNIT *uptr);
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void ttx1_enbdis (int32 dis);
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/* TTI1 data structures
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tti1_dev TTI1 device descriptor
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tti1_unit TTI1 unit descriptor
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tti1_reg TTI1 register list
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ttx1_mod TTI1/TTO1 modifiers list
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*/
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DIB tti1_dib = { DEV_TTI1, INT_TTI1, PI_TTI1, &tti1 };
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UNIT tti1_unit = { UDATA (&tti1_svc, UNIT_ATTABLE, 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 (BUSY, dev_busy, INT_V_TTI1) },
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{ FLDATA (DONE, dev_done, INT_V_TTI1) },
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{ FLDATA (DISABLE, dev_disable, INT_V_TTI1) },
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{ FLDATA (INT, int_req, INT_V_TTI1) },
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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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{ NULL }
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};
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MTAB tti1_mod[] = {
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{ UNIT_DASHER, 0, "ANSI", "ANSI", &ttx1_setmod },
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{ UNIT_DASHER, UNIT_DASHER, "Dasher", "DASHER", &ttx1_setmod },
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{ UNIT_ATT, UNIT_ATT, "summary", NULL,
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NULL, &tmxr_show_summ, (void *) &tt_desc },
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{ MTAB_XTD | MTAB_VDV, 0, NULL, "DISCONNECT",
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&tmxr_dscln, NULL, (void *) &tt_desc },
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{ MTAB_XTD | MTAB_VDV | MTAB_NMO, 1, "CONNECTIONS", NULL,
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NULL, &tmxr_show_cstat, (void *) &tt_desc },
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{ MTAB_XTD | MTAB_VDV | MTAB_NMO, 0, "STATISTICS", NULL,
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NULL, &tmxr_show_cstat, (void *) &tt_desc },
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{ 0 }
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};
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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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&tti1_dib, DEV_MUX | DEV_DISABLE
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};
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/* TTO1 data structures
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tto1_dev TTO1 device descriptor
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tto1_unit TTO1 unit descriptor
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tto1_reg TTO1 register list
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*/
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DIB tto1_dib = { DEV_TTO1, INT_TTO1, PI_TTO1, &tto1 };
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UNIT tto1_unit = { UDATA (&tto1_svc, 0, 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 (BUSY, dev_busy, INT_V_TTO1) },
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{ FLDATA (DONE, dev_done, INT_V_TTO1) },
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{ FLDATA (DISABLE, dev_disable, INT_V_TTO1) },
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{ FLDATA (INT, int_req, 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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{ NULL }
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};
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MTAB tto1_mod[] = {
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{ UNIT_DASHER, 0, "ANSI", "ANSI", &ttx1_setmod },
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{ UNIT_DASHER, UNIT_DASHER, "Dasher", "DASHER", &ttx1_setmod },
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{ MTAB_XTD|MTAB_VUN|MTAB_NC, 0, "LOG", "LOG",
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&tmxr_set_log, &tmxr_show_log, &tt_desc },
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{ MTAB_XTD|MTAB_VUN|MTAB_NC, 0, NULL, "NOLOG",
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&tmxr_set_nolog, NULL, &tt_desc },
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{ 0 }
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};
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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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&tto1_dib, DEV_DISABLE | DEV_MUX
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};
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/* Terminal input: IOT routine */
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int32 tti1 (int32 pulse, int32 code, int32 AC)
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{
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int32 iodata;
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iodata = (code == ioDIA)? tti1_unit.buf & 0377: 0;
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switch (pulse) { /* decode IR<8:9> */
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case iopS: /* start */
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dev_busy = dev_busy | INT_TTI1; /* set busy */
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dev_done = dev_done & ~INT_TTI1; /* clear done, int */
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int_req = int_req & ~INT_TTI1;
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break;
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case iopC: /* clear */
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dev_busy = dev_busy & ~INT_TTI1; /* clear busy */
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dev_done = dev_done & ~INT_TTI1; /* clear done, int */
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int_req = int_req & ~INT_TTI1;
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break;
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} /* end switch */
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return iodata;
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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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uptr->buf = temp & 0177;
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if ((uptr->flags & UNIT_DASHER) &&
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(uptr->buf == '\r'))
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uptr->buf = '\n'; /* Dasher: cr->nl */
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dev_busy = dev_busy & ~INT_TTI1; /* clear busy */
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dev_done = dev_done | INT_TTI1; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
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}
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sim_activate (uptr, uptr->wait); /* continue poll */
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}
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if (uptr->flags & UNIT_ATT) { /* attached? */
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newln = tmxr_poll_conn (&tt_desc); /* 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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}
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sim_activate (uptr, tmxr_poll); /* sched poll */
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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 tti1_reset (DEVICE *dptr)
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{
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ttx1_enbdis (dptr->flags & DEV_DIS); /* sync devices */
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tti1_unit.buf = 0; /* <not DG compatible> */
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dev_busy = dev_busy & ~INT_TTI1; /* clear busy */
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dev_done = dev_done & ~INT_TTI1; /* clear done, int */
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int_req = int_req & ~INT_TTI1;
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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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}
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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 code, int32 AC)
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{
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if (code == ioDOA)
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tto1_unit.buf = AC & 0377;
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switch (pulse) { /* decode IR<8:9> */
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case iopS: /* start */
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dev_busy = dev_busy | INT_TTO1; /* set busy */
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dev_done = dev_done & ~INT_TTO1; /* clear done, int */
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int_req = int_req & ~INT_TTO1;
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sim_activate (&tto1_unit, tto1_unit.wait); /* activate unit */
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break;
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case iopC: /* clear */
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dev_busy = dev_busy & ~INT_TTO1; /* clear busy */
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dev_done = dev_done & ~INT_TTO1; /* clear done, int */
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int_req = int_req & ~INT_TTO1;
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sim_cancel (&tto1_unit); /* deactivate unit */
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break;
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} /* end switch */
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return 0;
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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 c;
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dev_busy = dev_busy & ~INT_TTO1; /* clear busy */
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dev_done = dev_done | INT_TTO1; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
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c = tto1_unit.buf & 0177;
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if ((tto1_unit.flags & UNIT_DASHER) && (c == 031))
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c = '\b';
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if (tt1_ldsc.conn) { /* connected? */
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if (tt1_ldsc.xmte) { /* tx enabled? */
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tmxr_putc_ln (&tt1_ldsc, c); /* output char */
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tmxr_poll_tx (&tt_desc); /* poll xmt */
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}
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else {
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tmxr_poll_tx (&tt_desc); /* poll xmt */
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sim_activate (&tto1_unit, tmxr_poll); /* wait */
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}
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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 tto1_reset (DEVICE *dptr)
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{
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ttx1_enbdis (dptr->flags & DEV_DIS); /* sync devices */
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tto1_unit.buf = 0; /* <not DG compatible> */
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dev_busy = dev_busy & ~INT_TTO1; /* clear busy */
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dev_done = dev_done & ~INT_TTO1; /* clear done, int */
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int_req = int_req & ~INT_TTO1;
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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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t_stat ttx1_setmod (UNIT *uptr, int32 val, CONST char *cptr, void *desc)
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{
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tti1_unit.flags = (tti1_unit.flags & ~UNIT_DASHER) | val;
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tto1_unit.flags = (tto1_unit.flags & ~UNIT_DASHER) | val;
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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, CONST 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) /* error */
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return r;
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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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/* Enable/disable device */
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void ttx1_enbdis (int32 dis)
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{
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if (dis) {
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tti1_dev.flags = tti1_dev.flags | DEV_DIS;
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tto1_dev.flags = tto1_dev.flags | DEV_DIS;
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}
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else {
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tti1_dev.flags = tti1_dev.flags & ~DEV_DIS;
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tto1_dev.flags = tto1_dev.flags & ~DEV_DIS;
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}
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return;
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}
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