| /* i1401_iq.c: IBM 1407 inquiry terminal | |
| 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. | |
| inq 1407 inquiry terminal | |
| 20-Sep-05 RMS Revised for new code tables | |
| 22-Dec-02 RMS Added break support | |
| 07-Sep-01 RMS Moved function prototypes | |
| 14-Apr-99 RMS Changed t_addr to unsigned | |
| */ | |
| #include "i1401_defs.h" | |
| #include <ctype.h> | |
| #define UNIT_V_PCH (UNIT_V_UF + 0) /* output conv */ | |
| #define UNIT_PCH (1 << UNIT_V_PCH) | |
| extern volatile int32 stop_cpu; | |
| extern uint8 M[]; | |
| extern int32 BS, iochk, ind[64]; | |
| extern UNIT cpu_unit; | |
| extern t_bool conv_old; | |
| int32 inq_char = 033; /* request inq */ | |
| t_stat inq_svc (UNIT *uptr); | |
| t_stat inq_reset (DEVICE *dptr); | |
| void puts_tty (char *cptr); | |
| /* INQ data structures | |
| inq_dev INQ device descriptor | |
| inq_unit INQ unit descriptor | |
| inq_reg INQ register list | |
| */ | |
| UNIT inq_unit = { UDATA (&inq_svc, 0, 0), KBD_POLL_WAIT }; | |
| REG inq_reg[] = { | |
| { ORDATA (INQC, inq_char, 7) }, | |
| { FLDATA (INR, ind[IN_INR], 0) }, | |
| { FLDATA (INC, ind[IN_INC], 0) }, | |
| { DRDATA (TIME, inq_unit.wait, 24), REG_NZ + PV_LEFT }, | |
| { NULL } | |
| }; | |
| MTAB inq_mod[] = { | |
| { UNIT_PCH, 0, "business set", "BUSINESS" }, | |
| { UNIT_PCH, UNIT_PCH, "Fortran set", "FORTRAN" }, | |
| { 0 } | |
| }; | |
| DEVICE inq_dev = { | |
| "INQ", &inq_unit, inq_reg, inq_mod, | |
| 1, 10, 31, 1, 8, 7, | |
| NULL, NULL, &inq_reset, | |
| NULL, NULL, NULL | |
| }; | |
| /* Terminal I/O | |
| Modifiers have not been checked; legal modifiers are R and W | |
| */ | |
| t_stat inq_io (int32 flag, int32 mod) | |
| { | |
| int32 i, t, wm_seen = 0; | |
| t_bool use_h = inq_unit.flags & UNIT_PCH; | |
| ind[IN_INC] = 0; /* clear inq clear */ | |
| switch (mod) { /* case on mod */ | |
| case BCD_R: /* input */ | |
| /* if (ind[IN_INR] == 0) return SCPE_OK; /* return if no req */ | |
| ind[IN_INR] = 0; /* clear req */ | |
| puts_tty ("[Enter]\r\n"); /* prompt */ | |
| for (i = 0; M[BS] != (BCD_GRPMRK + WM); i++) { /* until GM + WM */ | |
| while (((t = sim_poll_kbd ()) == SCPE_OK) || | |
| (t & SCPE_BREAK)) { | |
| if (stop_cpu) return SCPE_STOP; /* interrupt? */ | |
| } | |
| if (t < SCPE_KFLAG) return t; /* if not char, err */ | |
| t = t & 0177; | |
| if ((t == '\r') || (t == '\n')) break; | |
| if (t == inq_char) { /* cancel? */ | |
| ind[IN_INC] = 1; /* set indicator */ | |
| puts_tty ("\r\n[Canceled]\r\n"); | |
| return SCPE_OK; | |
| } | |
| if (i && ((i % INQ_WIDTH) == 0)) puts_tty ("\r\n"); | |
| sim_putchar (t); /* echo */ | |
| if (flag == MD_WM) { /* word mark mode? */ | |
| if ((t == '~') && (wm_seen == 0)) wm_seen = WM; | |
| else { | |
| M[BS] = wm_seen | ascii2bcd (t); | |
| wm_seen = 0; | |
| } | |
| } | |
| else M[BS] = (M[BS] & WM) | ascii2bcd (t); | |
| if (!wm_seen) BS++; | |
| if (ADDR_ERR (BS)) { | |
| BS = BA | (BS % MAXMEMSIZE); | |
| return STOP_NXM; | |
| } | |
| } | |
| puts_tty ("\r\n"); | |
| M[BS++] = BCD_GRPMRK + WM; | |
| break; | |
| case BCD_W: /* output */ | |
| for (i = 0; (t = M[BS++]) != (BCD_GRPMRK + WM); i++) { | |
| if ((flag == MD_WM) && (t & WM)) { | |
| if (i && ((i % INQ_WIDTH) == 0)) puts_tty ("\r\n"); | |
| if (conv_old) sim_putchar ('~'); | |
| else sim_putchar ('`'); | |
| } | |
| if (i && ((i % INQ_WIDTH) == 0)) puts_tty ("\r\n"); | |
| sim_putchar (bcd2ascii (t & CHAR, use_h)); | |
| if (ADDR_ERR (BS)) { | |
| BS = BA | (BS % MAXMEMSIZE); | |
| return STOP_NXM; | |
| } | |
| } | |
| puts_tty ("\r\n"); | |
| break; | |
| default: /* invalid mod */ | |
| return STOP_INVM; | |
| } | |
| return SCPE_OK; | |
| } | |
| /* Unit service - polls for WRU or inquiry request */ | |
| t_stat inq_svc (UNIT *uptr) | |
| { | |
| int32 temp; | |
| sim_activate (&inq_unit, inq_unit.wait); /* continue poll */ | |
| if ((temp = sim_poll_kbd ()) < SCPE_KFLAG) return temp; /* no char or error? */ | |
| if ((temp & 0177) == inq_char) ind[IN_INR] = 1; /* set indicator */ | |
| return SCPE_OK; | |
| } | |
| /* Output multiple characters */ | |
| void puts_tty (char *cptr) | |
| { | |
| if (cptr == NULL) return; | |
| while (*cptr != 0) sim_putchar (*cptr++); | |
| return; | |
| } | |
| /* Reset routine */ | |
| t_stat inq_reset (DEVICE *dptr) | |
| { | |
| ind[IN_INR] = ind[IN_INC] = 0; /* clear indicators */ | |
| sim_activate (&inq_unit, inq_unit.wait); /* activate poll */ | |
| return SCPE_OK; | |
| } |