| /* pdp11_pt.c: PC11 paper tape reader/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 | |
| 07-Jul-05 RMS Removed extraneous externs | |
| 19-May-03 RMS Revised for new conditional compilation scheme | |
| 25-Apr-03 RMS Revised for extended file support | |
| 12-Sep-02 RMS Split off from pdp11_stddev.c | |
| */ | |
| #if defined (VM_PDP10) /* PDP10 version */ | |
| #include "pdp10_defs.h" | |
| #define PT_DIS DEV_DIS | |
| extern int32 int_req; | |
| #elif defined (VM_VAX) /* VAX version */ | |
| #include "vax_defs.h" | |
| #define PT_DIS DEV_DIS | |
| extern int32 int_req[IPL_HLVL]; | |
| #else /* PDP-11 version */ | |
| #include "pdp11_defs.h" | |
| #define PT_DIS 0 | |
| extern int32 int_req[IPL_HLVL]; | |
| #endif | |
| #define PTRCSR_IMP (CSR_ERR+CSR_BUSY+CSR_DONE+CSR_IE) /* paper tape reader */ | |
| #define PTRCSR_RW (CSR_IE) | |
| #define PTPCSR_IMP (CSR_ERR + CSR_DONE + CSR_IE) /* paper tape punch */ | |
| #define PTPCSR_RW (CSR_IE) | |
| int32 ptr_csr = 0; /* control/status */ | |
| int32 ptr_stopioe = 0; /* stop on error */ | |
| int32 ptp_csr = 0; /* control/status */ | |
| int32 ptp_stopioe = 0; /* stop on error */ | |
| DEVICE ptr_dev, ptp_dev; | |
| t_stat ptr_rd (int32 *data, int32 PA, int32 access); | |
| t_stat ptr_wr (int32 data, int32 PA, int32 access); | |
| t_stat ptr_svc (UNIT *uptr); | |
| t_stat ptr_reset (DEVICE *dptr); | |
| t_stat ptr_attach (UNIT *uptr, char *ptr); | |
| t_stat ptr_detach (UNIT *uptr); | |
| t_stat ptp_rd (int32 *data, int32 PA, int32 access); | |
| t_stat ptp_wr (int32 data, int32 PA, int32 access); | |
| t_stat ptp_svc (UNIT *uptr); | |
| t_stat ptp_reset (DEVICE *dptr); | |
| t_stat ptp_attach (UNIT *uptr, char *ptr); | |
| t_stat ptp_detach (UNIT *uptr); | |
| /* PTR data structures | |
| ptr_dev PTR device descriptor | |
| ptr_unit PTR unit descriptor | |
| ptr_reg PTR register list | |
| */ | |
| DIB ptr_dib = { | |
| IOBA_PTR, IOLN_PTR, &ptr_rd, &ptr_wr, | |
| 1, IVCL (PTR), VEC_PTR, { NULL } | |
| }; | |
| UNIT ptr_unit = { | |
| UDATA (&ptr_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0), | |
| SERIAL_IN_WAIT | |
| }; | |
| REG ptr_reg[] = { | |
| { GRDATA (BUF, ptr_unit.buf, DEV_RDX, 8, 0) }, | |
| { GRDATA (CSR, ptr_csr, DEV_RDX, 16, 0) }, | |
| { FLDATA (INT, int_req, INT_V_PTR) }, | |
| { FLDATA (ERR, ptr_csr, CSR_V_ERR) }, | |
| { FLDATA (BUSY, ptr_csr, CSR_V_BUSY) }, | |
| { FLDATA (DONE, ptr_csr, CSR_V_DONE) }, | |
| { FLDATA (IE, ptr_csr, CSR_V_IE) }, | |
| { DRDATA (POS, ptr_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (TIME, ptr_unit.wait, 24), PV_LEFT }, | |
| { FLDATA (STOP_IOE, ptr_stopioe, 0) }, | |
| { FLDATA (DEVDIS, ptr_dev.flags, DEV_V_DIS), REG_HRO }, | |
| { NULL } | |
| }; | |
| MTAB ptr_mod[] = { | |
| { MTAB_XTD|MTAB_VDV, 0, "ADDRESS", NULL, | |
| NULL, &show_addr, NULL }, | |
| { MTAB_XTD|MTAB_VDV, 0, "VECTOR", NULL, | |
| NULL, &show_vec, NULL }, | |
| { 0 } | |
| }; | |
| DEVICE ptr_dev = { | |
| "PTR", &ptr_unit, ptr_reg, ptr_mod, | |
| 1, 10, 31, 1, DEV_RDX, 8, | |
| NULL, NULL, &ptr_reset, | |
| NULL, &ptr_attach, &ptr_detach, | |
| &ptr_dib, DEV_DISABLE | PT_DIS | DEV_UBUS | DEV_QBUS | |
| }; | |
| /* PTP data structures | |
| ptp_dev PTP device descriptor | |
| ptp_unit PTP unit descriptor | |
| ptp_reg PTP register list | |
| */ | |
| DIB ptp_dib = { | |
| IOBA_PTP, IOLN_PTP, &ptp_rd, &ptp_wr, | |
| 1, IVCL (PTP), VEC_PTP, { NULL } | |
| }; | |
| UNIT ptp_unit = { | |
| UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE, 0), SERIAL_OUT_WAIT | |
| }; | |
| REG ptp_reg[] = { | |
| { GRDATA (BUF, ptp_unit.buf, DEV_RDX, 8, 0) }, | |
| { GRDATA (CSR, ptp_csr, DEV_RDX, 16, 0) }, | |
| { FLDATA (INT, int_req, INT_V_PTP) }, | |
| { FLDATA (ERR, ptp_csr, CSR_V_ERR) }, | |
| { FLDATA (DONE, ptp_csr, CSR_V_DONE) }, | |
| { FLDATA (IE, ptp_csr, CSR_V_IE) }, | |
| { 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 } | |
| }; | |
| MTAB ptp_mod[] = { | |
| { MTAB_XTD|MTAB_VDV, 0, "ADDRESS", NULL, | |
| NULL, &show_addr, NULL }, | |
| { MTAB_XTD|MTAB_VDV, 0, "VECTOR", NULL, | |
| NULL, &show_vec, NULL }, | |
| { 0 } | |
| }; | |
| DEVICE ptp_dev = { | |
| "PTP", &ptp_unit, ptp_reg, ptp_mod, | |
| 1, 10, 31, 1, DEV_RDX, 8, | |
| NULL, NULL, &ptp_reset, | |
| NULL, &ptp_attach, &ptp_detach, | |
| &ptp_dib, DEV_DISABLE | PT_DIS | DEV_UBUS | DEV_QBUS | |
| }; | |
| /* Paper tape reader I/O address routines */ | |
| t_stat ptr_rd (int32 *data, int32 PA, int32 access) | |
| { | |
| switch ((PA >> 1) & 01) { /* decode PA<1> */ | |
| case 0: /* ptr csr */ | |
| *data = ptr_csr & PTRCSR_IMP; | |
| return SCPE_OK; | |
| case 1: /* ptr buf */ | |
| ptr_csr = ptr_csr & ~CSR_DONE; | |
| CLR_INT (PTR); | |
| *data = ptr_unit.buf & 0377; | |
| return SCPE_OK; | |
| } | |
| return SCPE_NXM; /* can't get here */ | |
| } | |
| t_stat ptr_wr (int32 data, int32 PA, int32 access) | |
| { | |
| switch ((PA >> 1) & 01) { /* decode PA<1> */ | |
| case 0: /* ptr csr */ | |
| if (PA & 1) return SCPE_OK; | |
| if ((data & CSR_IE) == 0) CLR_INT (PTR); | |
| else if (((ptr_csr & CSR_IE) == 0) && (ptr_csr & (CSR_ERR | CSR_DONE))) | |
| SET_INT (PTR); | |
| if (data & CSR_GO) { | |
| ptr_csr = (ptr_csr & ~CSR_DONE) | CSR_BUSY; | |
| CLR_INT (PTR); | |
| if (ptr_unit.flags & UNIT_ATT) /* data to read? */ | |
| sim_activate (&ptr_unit, ptr_unit.wait); | |
| else sim_activate (&ptr_unit, 0); /* error if not */ | |
| } | |
| ptr_csr = (ptr_csr & ~PTRCSR_RW) | (data & PTRCSR_RW); | |
| return SCPE_OK; | |
| case 1: /* ptr buf */ | |
| return SCPE_OK; | |
| } /* end switch PA */ | |
| return SCPE_NXM; /* can't get here */ | |
| } | |
| /* Paper tape reader service */ | |
| t_stat ptr_svc (UNIT *uptr) | |
| { | |
| int32 temp; | |
| ptr_csr = (ptr_csr | CSR_ERR) & ~CSR_BUSY; | |
| if (ptr_csr & CSR_IE) SET_INT (PTR); | |
| if ((ptr_unit.flags & UNIT_ATT) == 0) | |
| return IORETURN (ptr_stopioe, SCPE_UNATT); | |
| if ((temp = getc (ptr_unit.fileref)) == EOF) { | |
| 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; | |
| } | |
| ptr_csr = (ptr_csr | CSR_DONE) & ~CSR_ERR; | |
| ptr_unit.buf = temp & 0377; | |
| ptr_unit.pos = ptr_unit.pos + 1; | |
| return SCPE_OK; | |
| } | |
| /* Paper tape reader support routines */ | |
| t_stat ptr_reset (DEVICE *dptr) | |
| { | |
| ptr_unit.buf = 0; | |
| ptr_csr = 0; | |
| if ((ptr_unit.flags & UNIT_ATT) == 0) ptr_csr = ptr_csr | CSR_ERR; | |
| CLR_INT (PTR); | |
| sim_cancel (&ptr_unit); | |
| return SCPE_OK; | |
| } | |
| t_stat ptr_attach (UNIT *uptr, char *cptr) | |
| { | |
| t_stat reason; | |
| reason = attach_unit (uptr, cptr); | |
| if ((ptr_unit.flags & UNIT_ATT) == 0) ptr_csr = ptr_csr | CSR_ERR; | |
| else ptr_csr = ptr_csr & ~CSR_ERR; | |
| return reason; | |
| } | |
| t_stat ptr_detach (UNIT *uptr) | |
| { | |
| ptr_csr = ptr_csr | CSR_ERR; | |
| return detach_unit (uptr); | |
| } | |
| /* Paper tape punch I/O address routines */ | |
| t_stat ptp_rd (int32 *data, int32 PA, int32 access) | |
| { | |
| switch ((PA >> 1) & 01) { /* decode PA<1> */ | |
| case 0: /* ptp csr */ | |
| *data = ptp_csr & PTPCSR_IMP; | |
| return SCPE_OK; | |
| case 1: /* ptp buf */ | |
| *data = ptp_unit.buf; | |
| return SCPE_OK; | |
| } | |
| return SCPE_NXM; /* can't get here */ | |
| } | |
| t_stat ptp_wr (int32 data, int32 PA, int32 access) | |
| { | |
| switch ((PA >> 1) & 01) { /* decode PA<1> */ | |
| case 0: /* ptp csr */ | |
| if (PA & 1) return SCPE_OK; | |
| if ((data & CSR_IE) == 0) CLR_INT (PTP); | |
| else if (((ptp_csr & CSR_IE) == 0) && (ptp_csr & (CSR_ERR | CSR_DONE))) | |
| SET_INT (PTP); | |
| ptp_csr = (ptp_csr & ~PTPCSR_RW) | (data & PTPCSR_RW); | |
| return SCPE_OK; | |
| case 1: /* ptp buf */ | |
| if ((PA & 1) == 0) ptp_unit.buf = data & 0377; | |
| ptp_csr = ptp_csr & ~CSR_DONE; | |
| CLR_INT (PTP); | |
| if (ptp_unit.flags & UNIT_ATT) /* file to write? */ | |
| sim_activate (&ptp_unit, ptp_unit.wait); | |
| else sim_activate (&ptp_unit, 0); /* error if not */ | |
| return SCPE_OK; | |
| } /* end switch PA */ | |
| return SCPE_NXM; /* can't get here */ | |
| } | |
| /* Paper tape punch service */ | |
| t_stat ptp_svc (UNIT *uptr) | |
| { | |
| ptp_csr = ptp_csr | CSR_ERR | CSR_DONE; | |
| if (ptp_csr & CSR_IE) SET_INT (PTP); | |
| if ((ptp_unit.flags & UNIT_ATT) == 0) | |
| 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_csr = ptp_csr & ~CSR_ERR; | |
| ptp_unit.pos = ptp_unit.pos + 1; | |
| return SCPE_OK; | |
| } | |
| /* Paper tape punch support routines */ | |
| t_stat ptp_reset (DEVICE *dptr) | |
| { | |
| ptp_unit.buf = 0; | |
| ptp_csr = CSR_DONE; | |
| if ((ptp_unit.flags & UNIT_ATT) == 0) ptp_csr = ptp_csr | CSR_ERR; | |
| CLR_INT (PTP); | |
| sim_cancel (&ptp_unit); /* deactivate unit */ | |
| return SCPE_OK; | |
| } | |
| t_stat ptp_attach (UNIT *uptr, char *cptr) | |
| { | |
| t_stat reason; | |
| reason = attach_unit (uptr, cptr); | |
| if ((ptp_unit.flags & UNIT_ATT) == 0) ptp_csr = ptp_csr | CSR_ERR; | |
| else ptp_csr = ptp_csr & ~CSR_ERR; | |
| return reason; | |
| } | |
| t_stat ptp_detach (UNIT *uptr) | |
| { | |
| ptp_csr = ptp_csr | CSR_ERR; | |
| return detach_unit (uptr); | |
| } |