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/* nova_tt.c: NOVA console terminal simulator
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Copyright (c) 1993-2004, 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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29-Dec-03 RMS Added console backpressure support
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25-Apr-03 RMS Revised for extended file support
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05-Jan-02 RMS Fixed calling sequence for setmod
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03-Oct-02 RMS Added DIBs
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30-May-02 RMS Widened POS to 32b
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30-Nov-01 RMS Added extended SET/SHOW support
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17-Sep-01 RMS Removed multiconsole support
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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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#include "nova_defs.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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int32 tti (int32 pulse, int32 code, int32 AC);
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int32 tto (int32 pulse, int32 code, int32 AC);
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t_stat tti_svc (UNIT *uptr);
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t_stat tto_svc (UNIT *uptr);
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t_stat tti_reset (DEVICE *dptr);
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t_stat tto_reset (DEVICE *dptr);
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t_stat ttx_setmod (UNIT *uptr, int32 val, char *cptr, void *desc);
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/* TTI data structures
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tti_dev TTI device descriptor
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tti_unit TTI unit descriptor
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tti_reg TTI register list
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ttx_mod TTI/TTO modifiers list
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DIB tti_dib = { DEV_TTI, INT_TTI, PI_TTI, &tti };
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UNIT tti_unit = { UDATA (&tti_svc, 0, 0), KBD_POLL_WAIT };
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{ ORDATA (BUF, tti_unit.buf, 8) },
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{ FLDATA (BUSY, dev_busy, INT_V_TTI) },
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{ FLDATA (DONE, dev_done, INT_V_TTI) },
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{ FLDATA (DISABLE, dev_disable, INT_V_TTI) },
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{ FLDATA (INT, int_req, INT_V_TTI) },
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{ DRDATA (POS, tti_unit.pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, tti_unit.wait, 24), REG_NZ + PV_LEFT },
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{ UNIT_DASHER, 0, "ANSI", "ANSI", &ttx_setmod },
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{ UNIT_DASHER, UNIT_DASHER, "Dasher", "DASHER", &ttx_setmod },
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"TTI", &tti_unit, tti_reg, ttx_mod,
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NULL, NULL, &tti_reset,
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/* TTO data structures
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tto_dev TTO device descriptor
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tto_unit TTO unit descriptor
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tto_reg TTO register list
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DIB tto_dib = { DEV_TTO, INT_TTO, PI_TTO, &tto };
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UNIT tto_unit = { UDATA (&tto_svc, 0, 0), SERIAL_OUT_WAIT };
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{ ORDATA (BUF, tto_unit.buf, 8) },
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{ FLDATA (BUSY, dev_busy, INT_V_TTO) },
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{ FLDATA (DONE, dev_done, INT_V_TTO) },
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{ FLDATA (DISABLE, dev_disable, INT_V_TTO) },
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{ FLDATA (INT, int_req, INT_V_TTO) },
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{ DRDATA (POS, tto_unit.pos, T_ADDR_W), PV_LEFT },
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{ DRDATA (TIME, tto_unit.wait, 24), PV_LEFT },
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"TTO", &tto_unit, tto_reg, ttx_mod,
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NULL, NULL, &tto_reset,
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/* Terminal input: IOT routine */
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int32 tti (int32 pulse, int32 code, int32 AC)
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iodata = (code == ioDIA)? tti_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_TTI; /* set busy */
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dev_done = dev_done & ~INT_TTI; /* clear done, int */
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int_req = int_req & ~INT_TTI;
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case iopC: /* clear */
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dev_busy = dev_busy & ~INT_TTI; /* clear busy */
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dev_done = dev_done & ~INT_TTI; /* clear done, int */
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int_req = int_req & ~INT_TTI;
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break; } /* end switch */
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t_stat tti_svc (UNIT *uptr)
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sim_activate (&tti_unit, tti_unit.wait); /* continue poll */
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if ((temp = sim_poll_kbd ()) < SCPE_KFLAG) return temp; /* no char or error? */
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tti_unit.buf = temp & 0177;
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if ((tti_unit.flags & UNIT_DASHER) && (tti_unit.buf == '\r'))
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tti_unit.buf = '\n'; /* Dasher: cr -> nl */
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dev_busy = dev_busy & ~INT_TTI; /* clear busy */
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dev_done = dev_done | INT_TTI; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
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tti_unit.pos = tti_unit.pos + 1;
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t_stat tti_reset (DEVICE *dptr)
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dev_busy = dev_busy & ~INT_TTI; /* clear busy */
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dev_done = dev_done & ~INT_TTI; /* clear done, int */
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int_req = int_req & ~INT_TTI;
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sim_activate (&tti_unit, tti_unit.wait); /* activate unit */
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/* Terminal output: IOT routine */
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int32 tto (int32 pulse, int32 code, int32 AC)
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if (code == ioDOA) tto_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_TTO; /* set busy */
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dev_done = dev_done & ~INT_TTO; /* clear done, int */
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int_req = int_req & ~INT_TTO;
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sim_activate (&tto_unit, tto_unit.wait); /* activate unit */
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case iopC: /* clear */
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dev_busy = dev_busy & ~INT_TTO; /* clear busy */
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dev_done = dev_done & ~INT_TTO; /* clear done, int */
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int_req = int_req & ~INT_TTO;
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sim_cancel (&tto_unit); /* deactivate unit */
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break; } /* end switch */
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t_stat tto_svc (UNIT *uptr)
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c = tto_unit.buf & 0177;
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if ((tto_unit.flags & UNIT_DASHER) && (c == 031)) c = '\b';
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if ((r = sim_putchar_s (c)) != SCPE_OK) { /* output; error? */
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sim_activate (uptr, uptr->wait); /* try again */
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return ((r == SCPE_STALL)? SCPE_OK: r); } /* !stall? report */
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dev_busy = dev_busy & ~INT_TTO; /* clear busy */
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dev_done = dev_done | INT_TTO; /* set done */
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int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable);
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tto_unit.pos = tto_unit.pos + 1;
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t_stat tto_reset (DEVICE *dptr)
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dev_busy = dev_busy & ~INT_TTO; /* clear busy */
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dev_done = dev_done & ~INT_TTO; /* clear done, int */
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int_req = int_req & ~INT_TTO;
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sim_cancel (&tto_unit); /* deactivate unit */
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t_stat ttx_setmod (UNIT *uptr, int32 val, char *cptr, void *desc)
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tti_unit.flags = (tti_unit.flags & ~UNIT_DASHER) | val;
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tto_unit.flags = (tto_unit.flags & ~UNIT_DASHER) | val;
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removed
NOVA/nova_tt.c
