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B5500: Added buffer size option to DTC.

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Added buffer size option allowing buffers to be set at a multiple of
28 characters. This is to allow R/C to be run without modifications.
This commit is contained in:
Richard Cornwell 2016-05-24 20:36:22 -04:00
parent 8bc31af29c
commit c717ee928f
1 changed files with 41 additions and 4 deletions
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45
B5500/b5500_dtc.c
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@ -148,6 +148,8 @@ t_stat dtc_setnl (UNIT *, int32, CONST char *, void *);
t_stat dtc_set_log (UNIT *, int32, CONST char *, void *);
t_stat dtc_set_nolog (UNIT *, int32, CONST char *, void *);
t_stat dtc_show_log (FILE *, UNIT *, int32, CONST void *);
t_stat dtc_set_buf (UNIT *, int32, CONST char *, void *);
t_stat dtc_show_buf (FILE *, UNIT *, int32, CONST void *);
t_stat dtc_help(FILE *, DEVICE *, UNIT *, int32, const char *);
t_stat dtc_help_attach (FILE *, DEVICE *, UNIT *, int32, const char *);
const char *dtc_description(DEVICE *);
@ -162,6 +164,7 @@ uint8 dtc_lstatus[DTC_MLINES]; /* Line status *
uint16 dtc_bufptr[DTC_MLINES]; /* Buffer pointer */
uint16 dtc_bsize[DTC_MLINES]; /* Buffer size */
uint16 dtc_blimit[DTC_MLINES]; /* Buffer size */
int dtc_bufsize = DTC_BUFSIZ;
MTAB dtc_mod[] = {
@ -175,12 +178,14 @@ MTAB dtc_mod[] = {
NULL, &tmxr_show_cstat, (void *) &dtc_desc, "Display multiplexer statistics" },
{ MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "LINES", "LINES=n",
&dtc_setnl, &tmxr_show_lines, (void *) &dtc_desc, "Display number of lines" },
{ MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, "BUFSIZE", "BUFSIZE=n",
&dtc_set_buf, &dtc_show_buf, (void *)&dtc_bufsize, "Set buffer size" },
{ MTAB_XTD|MTAB_VDV|MTAB_NC, 0, NULL, "LOG=n=file",
&dtc_set_log, NULL, &dtc_desc },
&dtc_set_log, NULL, (void *)&dtc_desc },
{ MTAB_XTD|MTAB_VDV|MTAB_VALR, 0, NULL, "NOLOG",
&dtc_set_nolog, NULL, &dtc_desc, "Disable logging on designated line" },
&dtc_set_nolog, NULL, (void *)&dtc_desc, "Disable logging on designated line" },
{ MTAB_XTD|MTAB_VDV|MTAB_NMO, 0, "LOG", NULL,
NULL, &dtc_show_log, &dtc_desc, "Display logging for all lines" },
NULL, &dtc_show_log, (void *)&dtc_desc, "Display logging for all lines" },
{0}
};
@ -512,7 +517,7 @@ dtco_srv(UNIT * uptr)
sim_clock_coschedule(uptr, tmxr_poll);
ln = tmxr_poll_conn(&dtc_desc); /* look for connect */
if (ln >= 0) { /* got one? */
dtc_blimit[ln] = DTC_BUFSIZ-1;
dtc_blimit[ln] = dtc_bufsize-1;
dtc_lstatus[ln] = BufIRQ|BufAbnormal|BufWriteRdy;
IAR |= IRQ_12;
sim_debug(DEBUG_DETAIL, &dtc_dev, "Datacomm connect %d\n", ln);
@ -839,6 +844,33 @@ t_stat dtc_show_log (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
return SCPE_OK;
}
/* SET BUFFER processor */
t_stat dtc_set_buf (UNIT *uptr, int32 val, CONST char *cptr, void *desc)
{
t_stat r;
int32 bufsiz;
if (cptr == NULL)
return SCPE_ARG;
bufsiz = (int32) get_uint (cptr, 10, DTC_BUFSIZ, &r);
if ((r != SCPE_OK) || (bufsiz >= DTC_BUFSIZ))
return SCPE_ARG;
if (bufsiz > 0 && (bufsiz % 28) == 0) {
dtc_bufsize = bufsiz;
return SCPE_OK;
}
return SCPE_ARG;
}
/* SHOW BUFFER processor */
t_stat dtc_show_buf (FILE *st, UNIT *uptr, int32 val, CONST void *desc)
{
fprintf (st, "bufsize=%d ", dtc_bufsize);
return SCPE_OK;
}
/* Show summary processor */
t_stat
@ -886,6 +918,11 @@ fprintf (st, "The B249 is a terminal multiplexor. Up to %d lines are supported.
fprintf (st, "The default number of lines is %d. The number of lines can\n", DTC_MLINES);
fprintf (st, "be changed with the command\n\n");
fprintf (st, " sim> SET %s LINES=n set line count to n\n\n", dptr->name);
fprintf (st, "The default buffer size for all lines can be set to a multiple of 28\n");
fprintf (st, "to a max of %d characters. Changes will take effect when ", DTC_BUFSIZ);
fprintf (st, "devices connect.\nThis number must match what MCP believes to be the ");
fprintf (st, "buffer size.\n\n");
fprintf (st, " sim> SET %s BUFSIZE=n set buffer size to n\n\n", dptr->name);
fprintf (st, "The B249 supports logging on a per-line basis. The command\n\n");
fprintf (st, " sim> SET %s LOG=n=filename\n\n", dptr->name);
fprintf (st, "enables logging for the specified line(n) to the indicated file. The command\n\n");