| /* h316_stddev.c: Honeywell 316/516 standard devices | |
| Copyright (c) 1999-2005, 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 316/516-50 paper tape reader | |
| ptp 316/516-52 paper tape punch | |
| tty 316/516-33 teleprinter | |
| clk/options 316/516-12 real time clocks/internal options | |
| 05-Feb-05 RMS Fixed bug in OCP '0001 (found by Philipp Hachtmann) | |
| 31-Jan-05 RMS Fixed bug in TTY print (found by Philipp Hachtmann) | |
| 01-Dec-04 RMS Fixed problem in SKS '104 (reported by Philipp Hachtmann) | |
| Fixed bug in SKS '504 | |
| Added PTR detach routine, stops motion | |
| Added PTR/PTP ASCII file support | |
| Added TTR/TTP support | |
| 24-Oct-03 RMS Added DMA/DMC support | |
| 25-Apr-03 RMS Revised for extended file support | |
| 01-Mar-03 RMS Added SET/SHOW CLK FREQ support | |
| 22-Dec-02 RMS Added break support | |
| 01-Nov-02 RMS Added 7b/8b support to terminal | |
| 30-May-02 RMS Widened POS to 32b | |
| 03-Nov-01 RMS Implemented upper case for console output | |
| 29-Nov-01 RMS Added read only unit support | |
| 07-Sep-01 RMS Moved function prototypes | |
| The ASR-33/35 reader/punch logic, and the ASCII file support for all paper tape | |
| devices, logic is taken, with grateful thanks, from Adrian Wise's H316 emulator. | |
| Teletype reader transitions: | |
| - SET TTY2 START puts the reader in RUN | |
| - XOFF from keyboard/reader stops the reader after 1-2 more characters are read | |
| - XON from program starts the reader | |
| - Detach, SET TTY2 STOP, or end of file stops the reader | |
| Teletype punch transitions: | |
| - SET TTY3 START puts the punch in RUN | |
| - XOFF from program stops the punch after 1 more character is punched | |
| - TAPE from program starts the punch after 1 character delay | |
| - Detach or SET TTY3 STOP stops the punch | |
| */ | |
| #include "h316_defs.h" | |
| #include <ctype.h> | |
| #define CHAR_FLAG(c) (1u << (c)) | |
| #define BEL_FLAG CHAR_FLAG('\a') | |
| #define LF_FLAG CHAR_FLAG('\n') | |
| #define CR_FLAG CHAR_FLAG('\r') | |
| #define HT_FLAG CHAR_FLAG('\t') | |
| #define CNTL_SET (BEL_FLAG | HT_FLAG | LF_FLAG | CR_FLAG) | |
| #define UNIT_V_8B (UNIT_V_UF + 0) /* 8B */ | |
| #define UNIT_V_KSR (UNIT_V_UF + 1) /* KSR33 */ | |
| #define UNIT_V_ASC (UNIT_V_UF + 2) /* ASCII */ | |
| #define UNIT_V_UASC (UNIT_V_UF + 3) /* Unix ASCII */ | |
| #define UNIT_8B (1 << UNIT_V_8B) | |
| #define UNIT_KSR (1 << UNIT_V_KSR) | |
| #define UNIT_ASC (1 << UNIT_V_ASC) | |
| #define UNIT_UASC (1 << UNIT_V_UASC) | |
| #define STA u3 /* state bits */ | |
| #define LF_PEND 01 /* lf pending */ | |
| #define RUNNING 02 /* tape running */ | |
| #define XON 0021 | |
| #define TAPE 0022 | |
| #define XOFF 0023 | |
| #define RUBOUT 0377 | |
| extern uint16 M[]; | |
| extern int32 PC; | |
| extern int32 stop_inst; | |
| extern int32 C, dp, ext, extoff_pending, sc; | |
| extern int32 dev_int, dev_enb; | |
| extern int32 sim_switches; | |
| extern UNIT cpu_unit; | |
| uint32 ptr_motion = 0; /* read motion */ | |
| uint32 ptr_stopioe = 0; /* stop on error */ | |
| uint32 ptp_stopioe = 0; | |
| uint32 ptp_power = 0; /* punch power, time */ | |
| int32 ptp_ptime; | |
| uint32 ttr_stopioe = 0; | |
| uint32 tty_mode = 0; /* input (0), output (1) */ | |
| uint32 tty_buf = 0; /* tty buffer */ | |
| uint32 ttr_xoff_read = 0; | |
| uint32 ttp_tape_rcvd = 0; | |
| uint32 ttp_xoff_rcvd = 0; | |
| int32 clk_tps = 60; /* ticks per second */ | |
| int32 ptrio (int32 inst, int32 fnc, int32 dat, int32 dev); | |
| t_stat ptr_svc (UNIT *uptr); | |
| t_stat ptr_reset (DEVICE *dptr); | |
| t_stat ptr_boot (int32 unitno, DEVICE *dptr); | |
| int32 ptpio (int32 inst, int32 fnc, int32 dat, int32 dev); | |
| t_stat ptp_svc (UNIT *uptr); | |
| t_stat ptp_reset (DEVICE *dptr); | |
| int32 ttyio (int32 inst, int32 fnc, int32 dat, int32 dev); | |
| t_stat tti_svc (UNIT *uptr); | |
| t_stat tto_svc (UNIT *uptr); | |
| t_stat tty_reset (DEVICE *dptr); | |
| t_stat ttio_set_mode (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat ttrp_set_mode (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat ttrp_set_start_stop (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| int32 clkio (int32 inst, int32 fnc, int32 dat, int32 dev); | |
| t_stat clk_svc (UNIT *uptr); | |
| t_stat clk_reset (DEVICE *dptr); | |
| t_stat clk_set_freq (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat clk_show_freq (FILE *st, UNIT *uptr, int32 val, void *desc); | |
| t_stat pt_attach (UNIT *uptr, char *cptr); | |
| t_stat pt_detach (UNIT *uptr); | |
| t_stat tto_write (int32 c); | |
| t_stat ttp_write (int32 c); | |
| /* PTR data structures | |
| ptr_dev PTR device descriptor | |
| ptr_unit PTR unit descriptor | |
| ptr_mod PTR modifiers | |
| ptr_reg PTR register list | |
| */ | |
| DIB ptr_dib = { PTR, IOBUS, 1, &ptrio }; | |
| 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 (READY, dev_int, INT_V_PTR) }, | |
| { FLDATA (ENABLE, dev_enb, INT_V_PTR) }, | |
| { FLDATA (MOTION, ptr_motion, 0) }, | |
| { DRDATA (POS, ptr_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (TIME, ptr_unit.wait, 24), PV_LEFT }, | |
| { ORDATA (RSTATE, ptr_unit.STA, 2), REG_HIDDEN }, | |
| { FLDATA (STOP_IOE, ptr_stopioe, 0) }, | |
| { NULL } | |
| }; | |
| MTAB pt_mod[] = { | |
| { UNIT_ATT+UNIT_ASC+UNIT_UASC, UNIT_ATT+UNIT_ASC, "ASCII", NULL }, | |
| { UNIT_ATT+UNIT_ASC+UNIT_UASC, UNIT_ATT+UNIT_ASC+UNIT_UASC, "Unix ASCII", NULL }, | |
| { 0 } | |
| }; | |
| DEVICE ptr_dev = { | |
| "PTR", &ptr_unit, ptr_reg, pt_mod, | |
| 1, 10, 31, 1, 8, 8, | |
| NULL, NULL, &ptr_reset, | |
| &ptr_boot, &pt_attach, &pt_detach, | |
| &ptr_dib, 0 | |
| }; | |
| /* PTP data structures | |
| ptp_dev PTP device descriptor | |
| ptp_unit PTP unit descriptor | |
| ptp_mod PTP modifiers | |
| ptp_reg PTP register list | |
| */ | |
| DIB ptp_dib = { PTP, IOBUS, 1, &ptpio }; | |
| UNIT ptp_unit = { | |
| UDATA (&ptp_svc, UNIT_SEQ+UNIT_ATTABLE, 0), SERIAL_OUT_WAIT | |
| }; | |
| REG ptp_reg[] = { | |
| { ORDATA (BUF, ptp_unit.buf, 8) }, | |
| { FLDATA (READY, dev_int, INT_V_PTP) }, | |
| { FLDATA (ENABLE, dev_enb, INT_V_PTP) }, | |
| { FLDATA (POWER, ptp_power, 0) }, | |
| { DRDATA (POS, ptp_unit.pos, T_ADDR_W), PV_LEFT }, | |
| { ORDATA (PSTATE, ptp_unit.STA, 2), REG_HIDDEN }, | |
| { DRDATA (TIME, ptp_unit.wait, 24), PV_LEFT }, | |
| { DRDATA (PWRTIME, ptp_ptime, 24), PV_LEFT }, | |
| { FLDATA (STOP_IOE, ptp_stopioe, 0) }, | |
| { NULL } | |
| }; | |
| DEVICE ptp_dev = { | |
| "PTP", &ptp_unit, ptp_reg, pt_mod, | |
| 1, 10, 31, 1, 8, 8, | |
| NULL, NULL, &ptp_reset, | |
| NULL, &pt_attach, NULL, | |
| &ptp_dib, 0 | |
| }; | |
| /* TTY data structures | |
| tty_dev TTY device descriptor | |
| tty_unit TTY unit descriptor | |
| tty_reg TTY register list | |
| tty_mod TTy modifiers list | |
| */ | |
| #define TTI 0 | |
| #define TTO 1 | |
| #define TTR 2 | |
| #define TTP 3 | |
| DIB tty_dib = { TTY, IOBUS, 1, &ttyio }; | |
| UNIT tty_unit[] = { | |
| { UDATA (&tti_svc, UNIT_KSR, 0), KBD_POLL_WAIT }, | |
| { UDATA (&tto_svc, UNIT_KSR, 0), SERIAL_OUT_WAIT }, | |
| { UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE+UNIT_ROABLE, 0) }, | |
| { UDATA (NULL, UNIT_SEQ+UNIT_ATTABLE, 0) } | |
| }; | |
| REG tty_reg[] = { | |
| { ORDATA (BUF, tty_buf, 8) }, | |
| { FLDATA (MODE, tty_mode, 0) }, | |
| { FLDATA (READY, dev_int, INT_V_TTY) }, | |
| { FLDATA (ENABLE, dev_enb, INT_V_TTY) }, | |
| { DRDATA (KPOS, tty_unit[TTI].pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (KTIME, tty_unit[TTI].wait, 24), REG_NZ + PV_LEFT }, | |
| { DRDATA (TPOS, tty_unit[TTO].pos, T_ADDR_W), PV_LEFT }, | |
| { DRDATA (TTIME, tty_unit[TTO].wait, 24), REG_NZ + PV_LEFT }, | |
| { ORDATA (RXOFF, ttr_xoff_read, 2), REG_HIDDEN }, | |
| { ORDATA (RSTATE, tty_unit[TTR].STA, 2), REG_HIDDEN }, | |
| { DRDATA (RPOS, tty_unit[TTR].pos, T_ADDR_W), PV_LEFT }, | |
| { ORDATA (PTAPE, ttp_tape_rcvd, 2), REG_HIDDEN }, | |
| { ORDATA (PXOFF, ttp_xoff_rcvd, 2), REG_HIDDEN }, | |
| { ORDATA (PSTATE, tty_unit[TTP].STA, 2), REG_HIDDEN }, | |
| { DRDATA (PPOS, tty_unit[TTP].pos, T_ADDR_W), PV_LEFT }, | |
| { FLDATA (STOP_IOE, ttr_stopioe, 0) }, | |
| { NULL } | |
| }; | |
| MTAB tty_mod[] = { | |
| { UNIT_KSR+UNIT_8B+UNIT_ATTABLE, UNIT_KSR, "KSR", "KSR", &ttio_set_mode }, | |
| { UNIT_KSR+UNIT_8B+UNIT_ATTABLE, 0 , "7b" , "7B" , &ttio_set_mode }, | |
| { UNIT_KSR+UNIT_8B+UNIT_ATTABLE, UNIT_8B , "8b" , "8B" , &ttio_set_mode }, | |
| { UNIT_ATTABLE+UNIT_ASC+UNIT_UASC, UNIT_ATTABLE, NULL, "BINARY", | |
| &ttrp_set_mode }, | |
| { UNIT_ATTABLE+UNIT_ASC+UNIT_UASC, UNIT_ATTABLE+UNIT_ASC, "ASCII", "ASCII", | |
| &ttrp_set_mode }, | |
| { UNIT_ATTABLE+UNIT_ASC+UNIT_UASC, UNIT_ATTABLE+UNIT_ASC+UNIT_UASC, "Unix ASCII", "UASCII", | |
| &ttrp_set_mode }, | |
| { MTAB_XTD|MTAB_VUN|MTAB_NMO, 1, NULL, "START", &ttrp_set_start_stop }, | |
| { MTAB_XTD|MTAB_VUN|MTAB_NMO, 0, NULL, "STOP", &ttrp_set_start_stop }, | |
| { 0 } | |
| }; | |
| DEVICE tty_dev = { | |
| "TTY", tty_unit, tty_reg, tty_mod, | |
| 4, 10, 31, 1, 8, 8, | |
| NULL, NULL, &tty_reset, | |
| NULL, &pt_attach, &pt_detach, | |
| &tty_dib, 0 | |
| }; | |
| /* CLK data structures | |
| clk_dev CLK device descriptor | |
| clk_unit CLK unit descriptor | |
| clk_mod CLK modifiers | |
| clk_reg CLK register list | |
| */ | |
| DIB clk_dib = { CLK_KEYS, IOBUS, 1, &clkio }; | |
| UNIT clk_unit = { UDATA (&clk_svc, 0, 0), 16000 }; | |
| REG clk_reg[] = { | |
| { FLDATA (READY, dev_int, INT_V_CLK) }, | |
| { FLDATA (ENABLE, dev_enb, INT_V_CLK) }, | |
| { DRDATA (TIME, clk_unit.wait, 24), REG_NZ + PV_LEFT }, | |
| { DRDATA (TPS, clk_tps, 8), PV_LEFT + REG_HRO }, | |
| { NULL } | |
| }; | |
| MTAB clk_mod[] = { | |
| { MTAB_XTD|MTAB_VDV, 50, NULL, "50HZ", | |
| &clk_set_freq, NULL, NULL }, | |
| { MTAB_XTD|MTAB_VDV, 60, NULL, "60HZ", | |
| &clk_set_freq, NULL, NULL }, | |
| { MTAB_XTD|MTAB_VDV, 0, "FREQUENCY", NULL, | |
| NULL, &clk_show_freq, NULL }, | |
| { 0 } | |
| }; | |
| DEVICE clk_dev = { | |
| "CLK", &clk_unit, clk_reg, clk_mod, | |
| 1, 0, 0, 0, 0, 0, | |
| NULL, NULL, &clk_reset, | |
| NULL, NULL, NULL, | |
| &clk_dib, 0 | |
| }; | |
| /* Paper tape reader: IO routine */ | |
| int32 ptrio (int32 inst, int32 fnc, int32 dat, int32 dev) | |
| { | |
| switch (inst) { /* case on opcode */ | |
| case ioOCP: /* OCP */ | |
| if (fnc & 016) return IOBADFNC (dat); /* only fnc 0,1 */ | |
| ptr_motion = fnc ^ 1; | |
| if (fnc) sim_cancel (&ptr_unit); /* fnc 1? stop */ | |
| else sim_activate (&ptr_unit, ptr_unit.wait); /* fnc 0? start */ | |
| break; | |
| case ioSKS: /* SKS */ | |
| if (fnc & 013) return IOBADFNC (dat); /* only fnc 0,4 */ | |
| if (((fnc == 000) && TST_INT (INT_PTR)) || /* fnc 0? skip rdy */ | |
| ((fnc == 004) && !TST_INTREQ (INT_PTR))) /* fnc 4? skip !int */ | |
| return IOSKIP (dat); | |
| break; | |
| case ioINA: /* INA */ | |
| if (fnc) return IOBADFNC (dat); /* only fnc 0 */ | |
| if (TST_INT (INT_PTR)) { /* ready? */ | |
| CLR_INT (INT_PTR); /* clear ready */ | |
| if (ptr_motion) /* if motion, restart */ | |
| sim_activate (&ptr_unit, ptr_unit.wait); | |
| return IOSKIP (ptr_unit.buf | dat); /* ret buf, skip */ | |
| } | |
| break; | |
| } /* end case op */ | |
| return dat; | |
| } | |
| /* Unit service */ | |
| t_stat ptr_svc (UNIT *uptr) | |
| { | |
| int32 c; | |
| if ((uptr->flags & UNIT_ATT) == 0) /* attached? */ | |
| return IORETURN (ptr_stopioe, SCPE_UNATT); | |
| if (uptr->STA & LF_PEND) { /* lf pending? */ | |
| uptr->STA &= ~LF_PEND; /* clear flag */ | |
| c = 0212; /* insert LF */ | |
| } | |
| else { | |
| if ((c = getc (uptr->fileref)) == EOF) { /* read byte */ | |
| if (feof (uptr->fileref)) { | |
| if (ptr_stopioe) printf ("PTR end of file\n"); | |
| else return SCPE_OK; | |
| } | |
| else perror ("PTR I/O error"); | |
| clearerr (uptr->fileref); | |
| return SCPE_IOERR; | |
| } | |
| if ((uptr->flags & UNIT_UASC) && (c == '\n')) { /* Unix newline? */ | |
| c = 0215; /* insert CR */ | |
| uptr->STA |= LF_PEND; /* lf pending */ | |
| } | |
| else if ((uptr->flags & UNIT_ASC) && (c != 0)) /* ASCII? */ | |
| c = c | 0200; | |
| uptr->pos = ftell (uptr->fileref); /* update pos */ | |
| } | |
| SET_INT (INT_PTR); /* set ready flag */ | |
| uptr->buf = c & 0377; /* get byte */ | |
| return SCPE_OK; | |
| } | |
| /* Paper tape attach routine - set or clear ASC/UASC flags if specified */ | |
| t_stat pt_attach (UNIT *uptr, char *cptr) | |
| { | |
| t_stat r; | |
| if (!(uptr->flags & UNIT_ATTABLE)) return SCPE_NOFNC; | |
| if (r = attach_unit (uptr, cptr)) return r; | |
| if (sim_switches & SWMASK ('A')) /* -a? ASCII */ | |
| uptr->flags |= UNIT_ASC; | |
| else if (sim_switches & SWMASK ('U')) /* -u? Unix ASCII */ | |
| uptr->flags |= (UNIT_ASC|UNIT_UASC); | |
| else if (sim_switches & SWMASK ('B')) /* -b? binary */ | |
| uptr->flags &= ~(UNIT_ASC|UNIT_UASC); | |
| uptr->STA = 0; | |
| return r; | |
| } | |
| /* Detach routine - stop motion if not restore */ | |
| t_stat pt_detach (UNIT *uptr) | |
| { | |
| if (!(sim_switches & SIM_SW_REST)) sim_cancel (uptr); /* stop motion */ | |
| uptr->STA = 0; | |
| return detach_unit (uptr); | |
| } | |
| /* Reset routine */ | |
| t_stat ptr_reset (DEVICE *dptr) | |
| { | |
| CLR_INT (INT_PTR); /* clear ready, enb */ | |
| CLR_ENB (INT_PTR); | |
| ptr_unit.buf = 0; /* clear buffer */ | |
| ptr_unit.STA = 0; | |
| ptr_motion = 0; /* unit stopped */ | |
| sim_cancel (&ptr_unit); /* deactivate unit */ | |
| return SCPE_OK; | |
| } | |
| /* Paper tape reader bootstrap routine */ | |
| #define PBOOT_START 1 | |
| #define PBOOT_SIZE (sizeof (pboot) / sizeof (int32)) | |
| static const int32 pboot[] = { | |
| 0010057, /* STA 57 */ | |
| 0030001, /* OCP 1 */ | |
| 0131001, /* READ, INA 1001 */ | |
| 0002003, /* JMP READ */ | |
| 0101040, /* SNZ */ | |
| 0002003, /* JMP READ */ | |
| 0010000, /* STA 0 */ | |
| 0131001, /* READ1, INA 1001 */ | |
| 0002010, /* JMP READ1 */ | |
| 0041470, /* LGL 8 */ | |
| 0130001, /* READ2, INA 1 */ | |
| 0002013, /* JMP READ2 */ | |
| 0110000, /* STA* 0 */ | |
| 0024000, /* IRS 0 */ | |
| 0100040 /* SZE */ | |
| }; | |
| t_stat ptr_boot (int32 unitno, DEVICE *dptr) | |
| { | |
| int32 i; | |
| for (i = 0; i < PBOOT_SIZE; i++) /* copy bootstrap */ | |
| M[PBOOT_START + i] = pboot[i]; | |
| PC = PBOOT_START; | |
| return SCPE_OK; | |
| } | |
| /* Paper tape punch: IO routine */ | |
| int32 ptpio (int32 inst, int32 fnc, int32 dat, int32 dev) | |
| { | |
| switch (inst) { /* case on opcode */ | |
| case ioOCP: /* OCP */ | |
| if (fnc & 016) return IOBADFNC (dat); /* only fnc 0,1 */ | |
| if (fnc) { /* fnc 1? pwr off */ | |
| CLR_INT (INT_PTP); /* not ready */ | |
| ptp_power = 0; /* turn off power */ | |
| sim_cancel (&ptp_unit); /* stop punch */ | |
| } | |
| else if (ptp_power == 0) /* fnc 0? start */ | |
| sim_activate (&ptp_unit, ptp_ptime); | |
| break; | |
| case ioSKS: /* SKS */ | |
| if ((fnc & 012) || (fnc == 005)) /* only 0, 1, 4 */ | |
| return IOBADFNC (dat); | |
| if (((fnc == 000) && TST_INT (INT_PTP)) || /* fnc 0? skip rdy */ | |
| ((fnc == 001) && /* fnc 1? skip ptp on */ | |
| (ptp_power || sim_is_active (&ptp_unit))) || | |
| ((fnc == 004) && !TST_INTREQ (INT_PTP))) /* fnc 4? skip !int */ | |
| return IOSKIP (dat); | |
| break; | |
| case ioOTA: /* OTA */ | |
| if (fnc) return IOBADFNC (dat); /* only fnc 0 */ | |
| if (TST_INT (INT_PTP)) { /* if ptp ready */ | |
| CLR_INT (INT_PTP); /* clear ready */ | |
| ptp_unit.buf = dat & 0377; /* store byte */ | |
| sim_activate (&ptp_unit, ptp_unit.wait); | |
| return IOSKIP (dat); /* skip return */ | |
| } | |
| break; | |
| } | |
| return dat; | |
| } | |
| /* Unit service */ | |
| t_stat ptp_svc (UNIT *uptr) | |
| { | |
| int32 c; | |
| SET_INT (INT_PTP); /* set flag */ | |
| if (ptp_power == 0) { /* power on? */ | |
| ptp_power = 1; /* ptp is ready */ | |
| return SCPE_OK; | |
| } | |
| if ((uptr->flags & UNIT_ATT) == 0) /* attached? */ | |
| return IORETURN (ptp_stopioe, SCPE_UNATT); | |
| if (uptr->flags & UNIT_ASC) { /* ASCII? */ | |
| c = uptr->buf & 0177; /* mask to 7b */ | |
| if ((uptr->flags & UNIT_UASC) && (c == 015)) /* cr? drop if Unix */ | |
| return SCPE_OK; | |
| else if (c == 012) c = '\n'; /* lf? cvt to nl */ | |
| } | |
| else c = uptr->buf & 0377; /* no, binary */ | |
| if (putc (c, uptr->fileref) == EOF) { /* output byte */ | |
| perror ("PTP I/O error"); | |
| clearerr (uptr->fileref); | |
| return SCPE_IOERR; | |
| } | |
| uptr->pos = ftell (uptr->fileref); /* update pos */ | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat ptp_reset (DEVICE *dptr) | |
| { | |
| CLR_INT (INT_PTP); /* clear ready, enb */ | |
| CLR_ENB (INT_PTP); | |
| ptp_power = 0; /* power off */ | |
| ptp_unit.buf = 0; /* clear buffer */ | |
| ptp_unit.STA = 0; | |
| sim_cancel (&ptp_unit); /* deactivate unit */ | |
| return SCPE_OK; | |
| } | |
| /* Terminal: IO routine */ | |
| int32 ttyio (int32 inst, int32 fnc, int32 dat, int32 dev) | |
| { | |
| switch (inst) { /* case on opcode */ | |
| case ioOCP: /* OCP */ | |
| if (fnc & 016) return IOBADFNC (dat); /* only fnc 0,1 */ | |
| if (fnc && (tty_mode == 0)) { /* input to output? */ | |
| if (!sim_is_active (&tty_unit[TTO])) /* set ready */ | |
| SET_INT (INT_TTY); | |
| tty_mode = 1; /* mode is output */ | |
| } | |
| else if ((fnc == 0) && tty_mode) { /* output to input? */ | |
| CLR_INT (INT_TTY); /* clear ready */ | |
| tty_mode = 0; /* mode is input */ | |
| } | |
| break; | |
| case ioSKS: /* SKS */ | |
| if (fnc & 012) return IOBADFNC (dat); /* fnc 0,1,4,5 */ | |
| if (((fnc == 000) && TST_INT (INT_TTY)) || /* fnc 0? skip rdy */ | |
| ((fnc == 001) && /* fnc 1? skip !busy */ | |
| (!tty_mode || !sim_is_active (&tty_unit[TTO]))) || | |
| ((fnc == 004) && !TST_INTREQ (INT_TTY)) || /* fnc 4? skip !int */ | |
| ((fnc == 005) && (tty_mode || /* fnc 5? skip !xoff */ | |
| ((tty_buf & 0177) != XOFF)))) /* input & XOFF char */ | |
| return IOSKIP (dat); | |
| break; | |
| case ioINA: /* INA */ | |
| if (fnc & 005) return IOBADFNC (dat); /* only 0,2 */ | |
| if (TST_INT (INT_TTY)) { /* ready? */ | |
| if (tty_mode == 0) CLR_INT (INT_TTY); /* inp? clear rdy */ | |
| return IOSKIP (dat | | |
| (tty_buf & ((fnc & 002)? 077: 0377))); | |
| } | |
| break; | |
| case ioOTA: | |
| if (fnc & 015) return IOBADFNC (dat); /* only 0,2 */ | |
| if (TST_INT (INT_TTY)) { /* ready? */ | |
| tty_buf = dat & 0377; /* store char */ | |
| if (fnc & 002) { /* binary mode? */ | |
| tty_buf = tty_buf | 0100; /* set ch 7 */ | |
| if (tty_buf & 040) tty_buf = tty_buf & 0277; | |
| } | |
| if (tty_mode) { | |
| sim_activate (&tty_unit[TTO], tty_unit[TTO].wait); | |
| CLR_INT (INT_TTY); | |
| } | |
| return IOSKIP (dat); | |
| } | |
| break; | |
| } /* end case op */ | |
| return dat; | |
| } | |
| /* Input service - keyboard and reader */ | |
| t_stat tti_svc (UNIT *uptr) | |
| { | |
| int32 out, c; | |
| UNIT *ruptr = &tty_unit[TTR]; | |
| sim_activate (uptr, uptr->wait); /* continue poll */ | |
| if ((c = sim_poll_kbd ()) >= SCPE_KFLAG) { /* character? */ | |
| out = c & 0177; /* mask echo to 7b */ | |
| if (c & SCPE_BREAK) c = 0; /* break? */ | |
| else if (uptr->flags & UNIT_KSR) { /* KSR? */ | |
| if (islower (out)) out = toupper (out); /* cvt to UC */ | |
| c = out | 0200; /* add TTY bit */ | |
| } | |
| else if (!(uptr->flags & UNIT_8B)) c = out; /* 7b? */ | |
| uptr->pos = uptr->pos + 1; | |
| } | |
| else if (c != SCPE_OK) return c; /* error? */ | |
| else if ((ruptr->flags & UNIT_ATT) && /* TTR attached */ | |
| (ruptr->STA & RUNNING)) { /* and running? */ | |
| if (ruptr->STA & LF_PEND) { /* lf pending? */ | |
| c = 0212; /* char is lf */ | |
| ruptr->STA &= LF_PEND; /* clear flag */ | |
| } | |
| else { /* normal read */ | |
| if ((c = getc (ruptr->fileref)) == EOF) { /* read byte */ | |
| if (feof (ruptr->fileref)) { /* EOF? */ | |
| ruptr->STA &= ~RUNNING; /* stop reader */ | |
| if (ttr_stopioe) printf ("TTR end of file\n"); | |
| else return SCPE_OK; | |
| } | |
| else perror ("TTR I/O error"); | |
| clearerr (ruptr->fileref); | |
| return SCPE_IOERR; | |
| } | |
| if ((ruptr->flags & UNIT_UASC) && (c == '\n')) { | |
| c = 0215; /* Unix ASCII NL? */ | |
| ruptr->STA |= LF_PEND; /* LF pending */ | |
| } | |
| else if ((ruptr->flags & UNIT_ASC) && (c != 0)) | |
| c = c | 0200; /* ASCII nz? cvt */ | |
| ruptr->pos = ftell (ruptr->fileref); | |
| } | |
| if (ttr_xoff_read != 0) { /* reader stopping? */ | |
| if (c == RUBOUT) ttr_xoff_read = 0; /* rubout? stop */ | |
| else ttr_xoff_read--; /* else decr state */ | |
| if (ttr_xoff_read == 0) /* delay done? */ | |
| ruptr->STA &= ~RUNNING; /* stop reader */ | |
| } | |
| else if ((c & 0177) == XOFF) ttr_xoff_read = 2; /* XOFF read? */ | |
| out = c; /* echo char */ | |
| } | |
| else return SCPE_OK; /* no char */ | |
| if (tty_mode == 0) { /* input mode? */ | |
| tty_buf = c & 0377; /* put char in buf */ | |
| SET_INT (INT_TTY); /* set flag */ | |
| } | |
| tto_write (out); /* echo to printer */ | |
| return ttp_write (out); /* and punch */ | |
| } | |
| /* Output service - printer and punch */ | |
| t_stat tto_svc (UNIT *uptr) | |
| { | |
| uint32 c7b; | |
| UNIT *ruptr = &tty_unit[TTR]; | |
| UNIT *puptr = &tty_unit[TTP]; | |
| t_stat r; | |
| c7b = tty_buf & 0177; | |
| if (ttp_tape_rcvd != 0) { /* prev = tape? */ | |
| ttp_tape_rcvd--; /* decrement state */ | |
| if ((ttp_tape_rcvd == 0) && (puptr->flags & UNIT_ATT)) | |
| puptr->STA |= RUNNING; /* start after delay */ | |
| } | |
| else if (c7b == TAPE) ttp_tape_rcvd = 2; /* char = TAPE? */ | |
| if (ttp_xoff_rcvd != 0) { /* prev = XOFF? */ | |
| ttp_xoff_rcvd--; /* decrement state */ | |
| if (ttp_xoff_rcvd == 0) puptr->STA &= RUNNING; /* stop after delay */ | |
| } | |
| else if (c7b == XOFF) ttp_xoff_rcvd = 2; /* char = XOFF? */ | |
| if ((c7b == XON) && (ruptr->flags & UNIT_ATT)) { /* char = XON? */ | |
| ruptr->STA |= RUNNING; /* start reader */ | |
| ttr_xoff_read = 0; /* cancel stop */ | |
| } | |
| if ((r = tto_write (tty_buf)) != SCPE_OK) { /* print; error? */ | |
| sim_activate (uptr, uptr->wait); /* try again */ | |
| return ((r == SCPE_STALL)? SCPE_OK: r); /* !stall? report */ | |
| } | |
| if ((r = ttp_write (tty_buf)) != SCPE_OK) return r; /* punch; error? */ | |
| SET_INT (INT_TTY); /* set done flag */ | |
| return SCPE_OK; | |
| } | |
| /* Output to printer */ | |
| t_stat tto_write (int32 c) | |
| { | |
| UNIT *tuptr = &tty_unit[TTO]; | |
| if (tuptr->flags & UNIT_8B) c = c & 0377; /* 8b? */ | |
| else { | |
| c = c & 0177; /* 7b, KSR: mask */ | |
| if (c) return SCPE_OK; /* supress NUL */ | |
| if (tuptr->flags & UNIT_KSR) { /* KSR? */ | |
| if ((c < 040) && /* not in ctrl set? */ | |
| !(CNTL_SET & CHAR_FLAG (c))) return SCPE_OK; | |
| if (islower (c)) c = toupper (c); /* cvt to UC */ | |
| } | |
| } | |
| tuptr->pos = tuptr->pos + 1; | |
| return sim_putchar_s (c); | |
| } | |
| /* Output to punch */ | |
| t_stat ttp_write (int32 c) | |
| { | |
| uint32 p, c7b; | |
| UNIT *puptr = &tty_unit[TTP]; | |
| if ((puptr->flags & UNIT_ATT) && /* TTP attached */ | |
| (puptr->STA & RUNNING)) { /* and running? */ | |
| c7b = c & 0177; | |
| if (!(puptr->flags & UNIT_UASC) || (c7b != 015)) { | |
| if (puptr->flags & UNIT_ASC) { /* ASCII? */ | |
| if (c7b == 012) p = '\n'; /* cvt LF */ | |
| else p = c7b; /* else 7b */ | |
| } | |
| else p = c; /* untouched */ | |
| if (putc (p, puptr->fileref) == EOF) { /* output byte */ | |
| perror ("TTP I/O error"); | |
| clearerr (puptr->fileref); | |
| return SCPE_IOERR; | |
| } | |
| puptr->pos = ftell (puptr->fileref); /* update pos */ | |
| } | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat tty_reset (DEVICE *dptr) | |
| { | |
| CLR_INT (INT_TTY); /* clear ready, enb */ | |
| CLR_ENB (INT_TTY); | |
| tty_mode = 0; /* mode = input */ | |
| tty_buf = 0; | |
| ttr_xoff_read = 0; /* clr TTR, TTP flags */ | |
| ttp_tape_rcvd = 0; | |
| ttp_xoff_rcvd = 0; | |
| tty_unit[TTR].STA = 0; | |
| tty_unit[TTP].STA = 0; | |
| sim_activate (&tty_unit[TTI], tty_unit[TTI].wait); /* activate poll */ | |
| sim_cancel (&tty_unit[TTO]); /* cancel output */ | |
| return SCPE_OK; | |
| } | |
| /* Set keyboard/printer mode - make sure flags agree */ | |
| t_stat ttio_set_mode (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| if (uptr->flags & UNIT_ATTABLE) return SCPE_NOFNC; /* not TTR, TTP */ | |
| tty_unit[TTI].flags = (tty_unit[TTI].flags & ~(UNIT_KSR | UNIT_8B)) | val; | |
| tty_unit[TTO].flags = (tty_unit[TTO].flags & ~(UNIT_KSR | UNIT_8B)) | val; | |
| return SCPE_OK; | |
| } | |
| /* Set reader/punch mode */ | |
| t_stat ttrp_set_mode (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| if (!(uptr->flags & UNIT_ATTABLE)) return SCPE_NOFNC; /* TTR, TTP only */ | |
| if (!(val & UNIT_UASC)) uptr->STA &= ~LF_PEND; | |
| return SCPE_OK; | |
| } | |
| /* Set reader/punch start/stop */ | |
| t_stat ttrp_set_start_stop (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| if (!(uptr->flags & UNIT_ATTABLE)) return SCPE_NOFNC; /* TTR, TTP only */ | |
| if (!(uptr->flags & UNIT_ATT)) return SCPE_UNATT; /* must be attached */ | |
| if (val) uptr->STA |= RUNNING; /* start? set running */ | |
| else uptr->STA &= ~RUNNING; /* stop? clr running */ | |
| if (uptr->flags & UNIT_ROABLE) ttr_xoff_read = 0; /* TTR? cancel stop */ | |
| else ttp_tape_rcvd = ttp_xoff_rcvd = 0; /* TTP? cancel all */ | |
| return SCPE_OK; | |
| } | |
| /* Clock/options: IO routine */ | |
| int32 clkio (int32 inst, int32 fnc, int32 dat, int32 dev) | |
| { | |
| switch (inst) { /* case on opcode */ | |
| case ioOCP: /* OCP */ | |
| if (fnc & 015) return IOBADFNC (dat); /* only fnc 0,2 */ | |
| CLR_INT (INT_CLK); /* reset ready */ | |
| if (fnc) sim_cancel (&clk_unit); /* fnc = 2? stop */ | |
| else { /* fnc = 0? */ | |
| if (!sim_is_active (&clk_unit)) | |
| sim_activate (&clk_unit, /* activate */ | |
| sim_rtc_init (clk_unit.wait)); /* init calibr */ | |
| } | |
| break; | |
| case ioSKS: /* SKS */ | |
| if (fnc == 000) { /* clock skip !int */ | |
| if (!TST_INTREQ (INT_CLK)) return IOSKIP (dat); | |
| } | |
| else if ((fnc & 007) == 002) { /* mem parity? */ | |
| if (((fnc == 002) && !TST_INT (INT_MPE)) || | |
| ((fnc == 012) && TST_INT (INT_MPE))) | |
| return IOSKIP (dat); | |
| } | |
| else return IOBADFNC (dat); /* invalid fnc */ | |
| break; | |
| case ioOTA: /* OTA */ | |
| if (fnc == 000) dev_enb = dat; /* SMK */ | |
| else if (fnc == 010) { /* OTK */ | |
| C = (dat >> 15) & 1; /* set C */ | |
| if (cpu_unit.flags & UNIT_HSA) /* HSA included? */ | |
| dp = (dat >> 14) & 1; /* set dp */ | |
| if (cpu_unit.flags & UNIT_EXT) { /* ext opt? */ | |
| if (dat & 020000) { /* ext set? */ | |
| ext = 1; /* yes, set */ | |
| extoff_pending = 0; | |
| } | |
| else extoff_pending = 1; /* no, clr later */ | |
| } | |
| sc = dat & 037; /* set sc */ | |
| } | |
| else return IOBADFNC (dat); | |
| break; | |
| } | |
| return dat; | |
| } | |
| /* Unit service */ | |
| t_stat clk_svc (UNIT *uptr) | |
| { | |
| M[M_CLK] = M[M_CLK + 1] & DMASK; /* increment mem ctr */ | |
| if (M[M_CLK] == 0) SET_INT (INT_CLK); /* = 0? set flag */ | |
| sim_activate (&clk_unit, sim_rtc_calb (clk_tps)); /* reactivate */ | |
| return SCPE_OK; | |
| } | |
| /* Reset routine */ | |
| t_stat clk_reset (DEVICE *dptr) | |
| { | |
| CLR_INT (INT_CLK); /* clear ready, enb */ | |
| CLR_ENB (INT_CLK); | |
| sim_cancel (&clk_unit); /* deactivate unit */ | |
| return SCPE_OK; | |
| } | |
| /* Set frequency */ | |
| t_stat clk_set_freq (UNIT *uptr, int32 val, char *cptr, void *desc) | |
| { | |
| if (cptr) return SCPE_ARG; | |
| if ((val != 50) && (val != 60)) return SCPE_IERR; | |
| clk_tps = val; | |
| return SCPE_OK; | |
| } | |
| /* Show frequency */ | |
| t_stat clk_show_freq (FILE *st, UNIT *uptr, int32 val, void *desc) | |
| { | |
| fprintf (st, (clk_tps == 50)? "50Hz": "60Hz"); | |
| return SCPE_OK; | |
| } |