| /* nova_pt.c: NOVA paper tape read/punch 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. | |
| ptr paper tape reader | |
| ptp paper tape punch | |
| 25-Apr-03 RMS Revised for extended file support | |
| 03-Oct-02 RMS Added DIBs | |
| 30-May-02 RMS Widened POS to 32b | |
| 29-Nov-01 RMS Added read only unit support | |
| */ | |
| #include "nova_defs.h" | |
| extern int32 int_req, dev_busy, dev_done, dev_disable; | |
| int32 ptr_stopioe = 0, ptp_stopioe = 0; /* stop on error */ | |
| int32 ptr (int32 pulse, int32 code, int32 AC); | |
| int32 ptp (int32 pulse, int32 code, int32 AC); | |
| t_stat ptr_svc (UNIT *uptr); | |
| t_stat ptp_svc (UNIT *uptr); | |
| t_stat ptr_reset (DEVICE *dptr); | |
| t_stat ptp_reset (DEVICE *dptr); | |
| /* PTR data structures | |
| ptr_dev PTR device descriptor | |
| ptr_unit PTR unit descriptor | |
| ptr_reg PTR register list | |
| */ | |
| DIB ptr_dib = { DEV_PTR, INT_PTR, PI_PTR, &ptr }; | |
| UNIT ptr_unit = { | |
| UDATA (&ptr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0), | |
| SERIAL_IN_WAIT | |
| }; | |
| REG ptr_reg[] = { | |
| { ORDATA (BUF, ptr_unit.buf, 8) }, | |
| { FLDATA (BUSY, dev_busy, INT_V_PTR) }, | |
| { FLDATA (DONE, dev_done, INT_V_PTR) }, | |
| { FLDATA (DISABLE, dev_disable, INT_V_PTR) }, | |
| { FLDATA (INT, int_req, INT_V_PTR) }, | |
| { DRDATA (POS, ptr_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (TIME, ptr_unit.wait, 24), PV_LEFT }, | |
| { FLDATA (STOP_IOE, ptr_stopioe, 0) }, | |
| { NULL } | |
| }; | |
| DEVICE ptr_dev = { | |
| "PTR", &ptr_unit, ptr_reg, NULL, | |
| 1, 10, 31, 1, 8, 8, | |
| NULL, NULL, &ptr_reset, | |
| NULL, NULL, NULL, | |
| &ptr_dib, 0 | |
| }; | |
| /* PTP data structures | |
| ptp_dev PTP device descriptor | |
| ptp_unit PTP unit descriptor | |
| ptp_reg PTP register list | |
| */ | |
| DIB ptp_dib = { DEV_PTP, INT_PTP, PI_PTP, &ptp }; | |
| UNIT ptp_unit = { | |
| UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE, 0), SERIAL_OUT_WAIT | |
| }; | |
| REG ptp_reg[] = { | |
| { ORDATA (BUF, ptp_unit.buf, 8) }, | |
| { FLDATA (BUSY, dev_busy, INT_V_PTP) }, | |
| { FLDATA (DONE, dev_done, INT_V_PTP) }, | |
| { FLDATA (DISABLE, dev_disable, INT_V_PTP) }, | |
| { FLDATA (INT, int_req, INT_V_PTP) }, | |
| { DRDATA (POS, ptp_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (TIME, ptp_unit.wait, 24), PV_LEFT }, | |
| { FLDATA (STOP_IOE, ptp_stopioe, 0) }, | |
| { NULL } | |
| }; | |
| DEVICE ptp_dev = { | |
| "PTP", &ptp_unit, ptp_reg, NULL, | |
| 1, 10, 31, 1, 8, 8, | |
| NULL, NULL, &ptp_reset, | |
| NULL, NULL, NULL, | |
| &ptp_dib, 0 | |
| }; | |
| /* Paper tape reader: IOT routine */ | |
| int32 ptr (int32 pulse, int32 code, int32 AC) | |
| { | |
| int32 iodata; | |
| iodata = (code == ioDIA)? ptr_unit.buf & 0377: 0; | |
| switch (pulse) { /* decode IR<8:9> */ | |
| case iopS: /* start */ | |
| dev_busy = dev_busy | INT_PTR; /* set busy */ | |
| dev_done = dev_done & ~INT_PTR; /* clear done, int */ | |
| int_req = int_req & ~INT_PTR; | |
| sim_activate (&ptr_unit, ptr_unit.wait); /* activate unit */ | |
| break; | |
| case iopC: /* clear */ | |
| dev_busy = dev_busy & ~INT_PTR; /* clear busy */ | |
| dev_done = dev_done & ~INT_PTR; /* clear done, int */ | |
| int_req = int_req & ~INT_PTR; | |
| sim_cancel (&ptr_unit); /* deactivate unit */ | |
| break; | |
| } /* end switch */ | |
| return iodata; | |
| } | |
| /* Unit service */ | |
| t_stat ptr_svc (UNIT *uptr) | |
| { | |
| int32 temp; | |
| if ((ptr_unit.flags & UNIT_ATT) == 0) /* attached? */ | |
| return IORETURN (ptr_stopioe, SCPE_UNATT); | |
| if ((temp = getc (ptr_unit.fileref)) == EOF) { /* end of file? */ | |
| if (feof (ptr_unit.fileref)) { | |
| if (ptr_stopioe) printf ("PTR end of file\n"); | |
| else return SCPE_OK; | |
| } | |
| else perror ("PTR I/O error"); | |
| clearerr (ptr_unit.fileref); | |
| return SCPE_IOERR; | |
| } | |
| dev_busy = dev_busy & ~INT_PTR; /* clear busy */ | |
| dev_done = dev_done | INT_PTR; /* set done */ | |
| int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable); | |
| ptr_unit.buf = temp & 0377; | |
| ptr_unit.pos = ptr_unit.pos + 1; | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat ptr_reset (DEVICE *dptr) | |
| { | |
| ptr_unit.buf = 0; | |
| dev_busy = dev_busy & ~INT_PTR; /* clear busy */ | |
| dev_done = dev_done & ~INT_PTR; /* clear done, int */ | |
| int_req = int_req & ~INT_PTR; | |
| sim_cancel (&ptr_unit); /* deactivate unit */ | |
| return SCPE_OK; | |
| } | |
| /* Paper tape punch: IOT routine */ | |
| int32 ptp (int32 pulse, int32 code, int32 AC) | |
| { | |
| if (code == ioDOA) ptp_unit.buf = AC & 0377; | |
| switch (pulse) { /* decode IR<8:9> */ | |
| case iopS: /* start */ | |
| dev_busy = dev_busy | INT_PTP; /* set busy */ | |
| dev_done = dev_done & ~INT_PTP; /* clear done, int */ | |
| int_req = int_req & ~INT_PTP; | |
| sim_activate (&ptp_unit, ptp_unit.wait); /* activate unit */ | |
| break; | |
| case iopC: /* clear */ | |
| dev_busy = dev_busy & ~INT_PTP; /* clear busy */ | |
| dev_done = dev_done & ~INT_PTP; /* clear done, int */ | |
| int_req = int_req & ~INT_PTP; | |
| sim_cancel (&ptp_unit); /* deactivate unit */ | |
| break; | |
| } /* end switch */ | |
| return 0; | |
| } | |
| /* Unit service */ | |
| t_stat ptp_svc (UNIT *uptr) | |
| { | |
| dev_busy = dev_busy & ~INT_PTP; /* clear busy */ | |
| dev_done = dev_done | INT_PTP; /* set done */ | |
| int_req = (int_req & ~INT_DEV) | (dev_done & ~dev_disable); | |
| if ((ptp_unit.flags & UNIT_ATT) == 0) /* attached? */ | |
| return IORETURN (ptp_stopioe, SCPE_UNATT); | |
| if (putc (ptp_unit.buf, ptp_unit.fileref) == EOF) { | |
| perror ("PTP I/O error"); | |
| clearerr (ptp_unit.fileref); | |
| return SCPE_IOERR; | |
| } | |
| ptp_unit.pos = ptp_unit.pos + 1; | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat ptp_reset (DEVICE *dptr) | |
| { | |
| ptp_unit.buf = 0; | |
| dev_busy = dev_busy & ~INT_PTP; /* clear busy */ | |
| dev_done = dev_done & ~INT_PTP; /* clear done, int */ | |
| int_req = int_req & ~INT_PTP; | |
| sim_cancel (&ptp_unit); /* deactivate unit */ | |
| return SCPE_OK; | |
| } |