| /* nova_tt.c: NOVA console terminal simulator | |
| Copyright (c) 1993-2005, Robert M. Supnik | |
| Permission is hereby granted, free of charge, to any person obtaining a | |
| copy of this software and associated documentation files (the "Software"), | |
| to deal in the Software without restriction, including without limitation | |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| and/or sell copies of the Software, and to permit persons to whom the | |
| Software is furnished to do so, subject to the following conditions: | |
| The above copyright notice and this permission notice shall be included in | |
| all copies or substantial portions of the Software. | |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
| IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| Except as contained in this notice, the name of Robert M Supnik shall not be | |
| used in advertising or otherwise to promote the sale, use or other dealings | |
| in this Software without prior written authorization from Robert M Supnik. | |
| tti terminal input | |
| tto terminal output | |
| 29-Dec-03 RMS Added console backpressure support | |
| 25-Apr-03 RMS Revised for extended file support | |
| 05-Jan-02 RMS Fixed calling sequence for setmod | |
| 03-Oct-02 RMS Added DIBs | |
| 30-May-02 RMS Widened POS to 32b | |
| 30-Nov-01 RMS Added extended SET/SHOW support | |
| 17-Sep-01 RMS Removed multiconsole support | |
| 07-Sep-01 RMS Moved function prototypes | |
| 31-May-01 RMS Added multiconsole support | |
| */ | |
| #include "nova_defs.h" | |
| #define UNIT_V_DASHER (UNIT_V_UF + 0) /* Dasher mode */ | |
| #define UNIT_DASHER (1 << UNIT_V_DASHER) | |
| extern int32 int_req, dev_busy, dev_done, dev_disable; | |
| int32 tti (int32 pulse, int32 code, int32 AC); | |
| int32 tto (int32 pulse, int32 code, int32 AC); | |
| t_stat tti_svc (UNIT *uptr); | |
| t_stat tto_svc (UNIT *uptr); | |
| t_stat tti_reset (DEVICE *dptr); | |
| t_stat tto_reset (DEVICE *dptr); | |
| t_stat ttx_setmod (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| /* TTI data structures | |
| tti_dev TTI device descriptor | |
| tti_unit TTI unit descriptor | |
| tti_reg TTI register list | |
| ttx_mod TTI/TTO modifiers list | |
| */ | |
| DIB tti_dib = { DEV_TTI, INT_TTI, PI_TTI, &tti }; | |
| UNIT tti_unit = { UDATA (&tti_svc, 0, 0), KBD_POLL_WAIT }; | |
| REG tti_reg[] = { | |
| { ORDATA (BUF, tti_unit.buf, 8) }, | |
| { FLDATA (BUSY, dev_busy, INT_V_TTI) }, | |
| { FLDATA (DONE, dev_done, INT_V_TTI) }, | |
| { FLDATA (DISABLE, dev_disable, INT_V_TTI) }, | |
| { FLDATA (INT, int_req, INT_V_TTI) }, | |
| { DRDATA (POS, tti_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (TIME, tti_unit.wait, 24), REG_NZ + PV_LEFT }, | |
| { NULL } | |
| }; | |
| MTAB ttx_mod[] = { | |
| { UNIT_DASHER, 0, "ANSI", "ANSI", &ttx_setmod }, | |
| { UNIT_DASHER, UNIT_DASHER, "Dasher", "DASHER", &ttx_setmod }, | |
| { 0 } | |
| }; | |
| DEVICE tti_dev = { | |
| "TTI", &tti_unit, tti_reg, ttx_mod, | |
| 1, 10, 31, 1, 8, 8, | |
| NULL, NULL, &tti_reset, | |
| NULL, NULL, NULL, | |
| &tti_dib, 0 | |
| }; | |
| /* TTO data structures | |
| tto_dev TTO device descriptor | |
| tto_unit TTO unit descriptor | |
| tto_reg TTO register list | |
| */ | |
| DIB tto_dib = { DEV_TTO, INT_TTO, PI_TTO, &tto }; | |
| UNIT tto_unit = { UDATA (&tto_svc, 0, 0), SERIAL_OUT_WAIT }; | |
| REG tto_reg[] = { | |
| { ORDATA (BUF, tto_unit.buf, 8) }, | |
| { FLDATA (BUSY, dev_busy, INT_V_TTO) }, | |
| { FLDATA (DONE, dev_done, INT_V_TTO) }, | |
| { FLDATA (DISABLE, dev_disable, INT_V_TTO) }, | |
| { FLDATA (INT, int_req, INT_V_TTO) }, | |
| { DRDATA (POS, tto_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (TIME, tto_unit.wait, 24), PV_LEFT }, | |
| { NULL } | |
| }; | |
| DEVICE tto_dev = { | |
| "TTO", &tto_unit, tto_reg, ttx_mod, | |
| 1, 10, 31, 1, 8, 8, | |
| NULL, NULL, &tto_reset, | |
| NULL, NULL, NULL, | |
| &tto_dib, 0 | |
| }; | |
| /* Terminal input: IOT routine */ | |
| int32 tti (int32 pulse, int32 code, int32 AC) | |
| { | |
| int32 iodata; | |
| iodata = (code == ioDIA)? tti_unit.buf & 0377: 0; | |
| switch (pulse) { /* decode IR<8:9> */ | |
| case iopS: /* start */ | |
| dev_busy = dev_busy | INT_TTI; /* set busy */ | |
| dev_done = dev_done & ~INT_TTI; /* clear done, int */ | |
| int_req = int_req & ~INT_TTI; | |
| break; | |
| case iopC: /* clear */ | |
| dev_busy = dev_busy & ~INT_TTI; /* clear busy */ | |
| dev_done = dev_done & ~INT_TTI; /* clear done, int */ | |
| int_req = int_req & ~INT_TTI; | |
| break; | |
| } /* end switch */ | |
| return iodata; | |
| } | |
| /* Unit service */ | |
| t_stat tti_svc (UNIT *uptr) | |
| { | |
| int32 temp; | |
| sim_activate (&tti_unit, tti_unit.wait); /* continue poll */ | |
| if ((temp = sim_poll_kbd ()) < SCPE_KFLAG) return temp; /* no char or error? */ | |
| tti_unit.buf = temp & 0177; | |
| if ((tti_unit.flags & UNIT_DASHER) && (tti_unit.buf == '\r')) | |
| tti_unit.buf = '\n'; /* Dasher: cr -> nl */ | |
| dev_busy = dev_busy & ~INT_TTI; /* clear busy */ | |
| dev_done = dev_done | INT_TTI; /* set done */ | |
| int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable); | |
| tti_unit.pos = tti_unit.pos + 1; | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat tti_reset (DEVICE *dptr) | |
| { | |
| tti_unit.buf = 0; | |
| dev_busy = dev_busy & ~INT_TTI; /* clear busy */ | |
| dev_done = dev_done & ~INT_TTI; /* clear done, int */ | |
| int_req = int_req & ~INT_TTI; | |
| sim_activate (&tti_unit, tti_unit.wait); /* activate unit */ | |
| return SCPE_OK; | |
| } | |
| /* Terminal output: IOT routine */ | |
| int32 tto (int32 pulse, int32 code, int32 AC) | |
| { | |
| if (code == ioDOA) tto_unit.buf = AC & 0377; | |
| switch (pulse) { /* decode IR<8:9> */ | |
| case iopS: /* start */ | |
| dev_busy = dev_busy | INT_TTO; /* set busy */ | |
| dev_done = dev_done & ~INT_TTO; /* clear done, int */ | |
| int_req = int_req & ~INT_TTO; | |
| sim_activate (&tto_unit, tto_unit.wait); /* activate unit */ | |
| break; | |
| case iopC: /* clear */ | |
| dev_busy = dev_busy & ~INT_TTO; /* clear busy */ | |
| dev_done = dev_done & ~INT_TTO; /* clear done, int */ | |
| int_req = int_req & ~INT_TTO; | |
| sim_cancel (&tto_unit); /* deactivate unit */ | |
| break; | |
| } /* end switch */ | |
| return 0; | |
| } | |
| /* Unit service */ | |
| t_stat tto_svc (UNIT *uptr) | |
| { | |
| int32 c; | |
| t_stat r; | |
| c = tto_unit.buf & 0177; | |
| if ((tto_unit.flags & UNIT_DASHER) && (c == 031)) c = '\b'; | |
| if ((r = sim_putchar_s (c)) != SCPE_OK) { /* output; error? */ | |
| sim_activate (uptr, uptr->wait); /* try again */ | |
| return ((r == SCPE_STALL)? SCPE_OK: r); /* !stall? report */ | |
| } | |
| dev_busy = dev_busy & ~INT_TTO; /* clear busy */ | |
| dev_done = dev_done | INT_TTO; /* set done */ | |
| int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable); | |
| tto_unit.pos = tto_unit.pos + 1; | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat tto_reset (DEVICE *dptr) | |
| { | |
| tto_unit.buf = 0; | |
| dev_busy = dev_busy & ~INT_TTO; /* clear busy */ | |
| dev_done = dev_done & ~INT_TTO; /* clear done, int */ | |
| int_req = int_req & ~INT_TTO; | |
| sim_cancel (&tto_unit); /* deactivate unit */ | |
| return SCPE_OK; | |
| } | |
| t_stat ttx_setmod (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| tti_unit.flags = (tti_unit.flags & ~UNIT_DASHER) | val; | |
| tto_unit.flags = (tto_unit.flags & ~UNIT_DASHER) | val; | |
| return SCPE_OK; | |
| } |