198 lines
6.6 KiB
C
198 lines
6.6 KiB
C
/* i1401_iq.c: IBM 1407 inquiry terminal
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Copyright (c) 1993-2015, Robert M. Supnik
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Robert M Supnik shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from Robert M Supnik.
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inq 1407 inquiry terminal
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08-Mar-15 RMS Renamed puts_tty to inq_puts
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20-Sep-05 RMS Revised for new code tables
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22-Dec-02 RMS Added break support
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07-Sep-01 RMS Moved function prototypes
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14-Apr-99 RMS Changed t_addr to unsigned
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*/
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#include "i1401_defs.h"
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#include <ctype.h>
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#define UNIT_V_PCH (UNIT_V_UF + 0) /* output conv */
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#define UNIT_PCH (1 << UNIT_V_PCH)
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extern uint8 M[];
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extern int32 BS, iochk, ind[64];
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extern UNIT cpu_unit;
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extern t_bool conv_old;
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int32 inq_char = 033; /* request inq */
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t_stat inq_svc (UNIT *uptr);
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t_stat inq_reset (DEVICE *dptr);
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void inq_puts (const char *cptr);
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/* INQ data structures
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inq_dev INQ device descriptor
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inq_unit INQ unit descriptor
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inq_reg INQ register list
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*/
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UNIT inq_unit = { UDATA (&inq_svc, 0, 0), KBD_POLL_WAIT };
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REG inq_reg[] = {
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{ ORDATA (INQC, inq_char, 7) },
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{ FLDATA (INR, ind[IN_INR], 0) },
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{ FLDATA (INC, ind[IN_INC], 0) },
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{ DRDATA (TIME, inq_unit.wait, 24), REG_NZ + PV_LEFT },
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{ NULL }
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};
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MTAB inq_mod[] = {
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{ UNIT_PCH, 0, "business set", "BUSINESS" },
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{ UNIT_PCH, UNIT_PCH, "Fortran set", "FORTRAN" },
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{ 0 }
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};
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DEVICE inq_dev = {
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"INQ", &inq_unit, inq_reg, inq_mod,
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1, 10, 31, 1, 8, 7,
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NULL, NULL, &inq_reset,
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NULL, NULL, NULL
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};
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/* Terminal I/O
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Modifiers have not been checked; legal modifiers are R and W
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*/
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t_stat inq_io (int32 flag, int32 mod)
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{
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int32 i, t, wm_seen = 0;
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t_bool use_h = inq_unit.flags & UNIT_PCH;
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ind[IN_INC] = 0; /* clear inq clear */
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switch (mod) { /* case on mod */
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case BCD_R: /* input */
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// if (ind[IN_INR] == 0)
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// return SCPE_OK; /* return if no req */
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ind[IN_INR] = 0; /* clear req */
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inq_puts ("[Enter]\r\n"); /* prompt */
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for (i = 0; M[BS] != (BCD_GRPMRK + WM); i++) { /* until GM + WM */
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while (((t = sim_poll_kbd ()) == SCPE_OK) ||
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(t & SCPE_BREAK)) {
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if (stop_cpu) /* interrupt? */
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return SCPE_STOP;
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}
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if (t < SCPE_KFLAG) /* if not char, err */
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return t;
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t = t & 0177;
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if ((t == '\r') || (t == '\n'))
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break;
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if (t == inq_char) { /* cancel? */
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ind[IN_INC] = 1; /* set indicator */
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inq_puts ("\r\n[Canceled]\r\n");
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return SCPE_OK;
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}
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if (i && ((i % INQ_WIDTH) == 0))
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inq_puts ("\r\n");
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sim_putchar (t); /* echo */
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if (flag == MD_WM) { /* word mark mode? */
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if ((t == '~') && (wm_seen == 0))
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wm_seen = WM;
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else {
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M[BS] = wm_seen | ascii2bcd (t);
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wm_seen = 0;
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}
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}
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else M[BS] = (M[BS] & WM) | ascii2bcd (t);
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if (!wm_seen)
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BS++;
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if (ADDR_ERR (BS)) {
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BS = BA | (BS % MAXMEMSIZE);
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return STOP_NXM;
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}
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}
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inq_puts ("\r\n");
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M[BS++] = BCD_GRPMRK + WM;
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break;
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case BCD_W: /* output */
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for (i = 0; (t = M[BS++]) != (BCD_GRPMRK + WM); i++) {
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if ((flag == MD_WM) && (t & WM)) {
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if (i && ((i % INQ_WIDTH) == 0))
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inq_puts ("\r\n");
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if (conv_old)
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sim_putchar ('~');
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else sim_putchar ('`');
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}
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if (i && ((i % INQ_WIDTH) == 0))
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inq_puts ("\r\n");
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sim_putchar (bcd2ascii (t & CHAR, use_h));
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if (ADDR_ERR (BS)) {
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BS = BA | (BS % MAXMEMSIZE);
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return STOP_NXM;
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}
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}
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inq_puts ("\r\n");
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break;
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default: /* invalid mod */
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return STOP_INVM;
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}
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return SCPE_OK;
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}
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/* Unit service - polls for WRU or inquiry request */
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t_stat inq_svc (UNIT *uptr)
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{
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int32 temp;
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sim_activate (&inq_unit, inq_unit.wait); /* continue poll */
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if ((temp = sim_poll_kbd ()) < SCPE_KFLAG) /* no char or error? */
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return temp;
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if ((temp & 0177) == inq_char) /* set indicator */
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ind[IN_INR] = 1;
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return SCPE_OK;
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}
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/* Output multiple characters */
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void inq_puts (const char *cptr)
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{
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if (cptr == NULL)
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return;
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while (*cptr != 0)
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sim_putchar (*cptr++);
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return;
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}
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/* Reset routine */
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t_stat inq_reset (DEVICE *dptr)
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{
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ind[IN_INR] = ind[IN_INC] = 0; /* clear indicators */
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sim_activate (&inq_unit, inq_unit.wait); /* activate poll */
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return SCPE_OK;
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}
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