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[unix-history] / usr / src / usr.sbin / config / mkubglue.c

/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved.  The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/

#ifndef lint
static char sccsid[] = "@(#)mkubglue.c  5.1 (Berkeley) %G%";
#endif not lint

/*
* Make the uba interrupt file ubglue.s
*/
#include <stdio.h>
#include "config.h"
#include "y.tab.h"

ubglue()
{
       register FILE *fp;
       register struct device *dp, *mp;

       fp = fopen(path("ubglue.s"), "w");
       if (fp == 0) {
               perror(path("ubglue.s"));
               exit(1);
       }
       for (dp = dtab; dp != 0; dp = dp->d_next) {
               mp = dp->d_conn;
               if (mp != 0 && mp != (struct device *)-1 &&
                   !eq(mp->d_name, "mba")) {
                       struct idlst *id, *id2;

                       for (id = dp->d_vec; id; id = id->id_next) {
                               for (id2 = dp->d_vec; id2; id2 = id2->id_next) {
                                       if (id2 == id) {
                                               dump_vec(fp, id->id, dp->d_unit);
                                               break;
                                       }
                                       if (!strcmp(id->id, id2->id))
                                               break;
                               }
                       }
               }
       }
       dump_std(fp);
       for (dp = dtab; dp != 0; dp = dp->d_next) {
               mp = dp->d_conn;
               if (mp != 0 && mp != (struct device *)-1 &&
                   !eq(mp->d_name, "mba")) {
                       struct idlst *id, *id2;

                       for (id = dp->d_vec; id; id = id->id_next) {
                               for (id2 = dp->d_vec; id2; id2 = id2->id_next) {
                                       if (id2 == id) {
                                               dump_intname(fp, id->id,
                                                       dp->d_unit);
                                               break;
                                       }
                                       if (!strcmp(id->id, id2->id))
                                               break;
                               }
                       }
               }
       }
       dump_ctrs(fp);
       (void) fclose(fp);
}

static int cntcnt = 0;          /* number of interrupt counters allocated */

/*
* print an interrupt vector
*/
dump_vec(fp, vector, number)
       register FILE *fp;
       char *vector;
       int number;
{
       char nbuf[80];
       register char *v = nbuf;

       (void) sprintf(v, "%s%d", vector, number);
       fprintf(fp, "\t.globl\t_X%s\n\t.align\t2\n_X%s:\n\tpushr\t$0x3f\n",
           v, v);
       fprintf(fp, "\tincl\t_fltintrcnt+(4*%d)\n", cntcnt++);
       if (strncmp(vector, "dzx", 3) == 0)
               fprintf(fp, "\tmovl\t$%d,r0\n\tjmp\tdzdma\n\n", number);
       else {
               if (strncmp(vector, "uur", 3) == 0) {
                       fprintf(fp, "#ifdef UUDMA\n");
                       fprintf(fp, "\tmovl\t$%d,r0\n\tjsb\tuudma\n", number);
                       fprintf(fp, "#endif\n");
               }
               fprintf(fp, "\tpushl\t$%d\n", number);
               fprintf(fp, "\tcalls\t$1,_%s\n\tpopr\t$0x3f\n", vector);
               fprintf(fp, "\tincl\t_cnt+V_INTR\n\trei\n\n");
       }
}

/*
* Start the interrupt name table with the names
* of the standard vectors not on the unibus.
* The number and order of these names should correspond
* with the definitions in scb.s.
*/
dump_std(fp)
       register FILE *fp;
{
       fprintf(fp, "\n\t.globl\t_intrnames\n");
       fprintf(fp, "\n\t.globl\t_eintrnames\n");
       fprintf(fp, "\t.data\n");
       fprintf(fp, "_intrnames:\n");
       fprintf(fp, "\t.asciz\t\"clock\"\n");
       fprintf(fp, "\t.asciz\t\"cnr\"\n");
       fprintf(fp, "\t.asciz\t\"cnx\"\n");
       fprintf(fp, "\t.asciz\t\"tur\"\n");
       fprintf(fp, "\t.asciz\t\"tux\"\n");
       fprintf(fp, "\t.asciz\t\"mba0\"\n");
       fprintf(fp, "\t.asciz\t\"mba1\"\n");
       fprintf(fp, "\t.asciz\t\"mba2\"\n");
       fprintf(fp, "\t.asciz\t\"mba3\"\n");
       fprintf(fp, "\t.asciz\t\"uba0\"\n");
       fprintf(fp, "\t.asciz\t\"uba1\"\n");
       fprintf(fp, "\t.asciz\t\"uba2\"\n");
       fprintf(fp, "\t.asciz\t\"uba3\"\n");
#define I_FIXED         13                      /* number of names above */
}

dump_intname(fp, vector, number)
       register FILE *fp;
       char *vector;
       int number;
{
       register char *cp = vector;

       fprintf(fp, "\t.asciz\t\"");
       /*
        * Skip any "int" or "intr" in the name.
        */
       while (*cp)
               if (cp[0] == 'i' && cp[1] == 'n' &&  cp[2] == 't') {
                       cp += 3;
                       if (*cp == 'r')
                               cp++;
               } else {
                       putc(*cp, fp);
                       cp++;
               }
       fprintf(fp, "%d\"\n", number);
}

dump_ctrs(fp)
       register FILE *fp;
{
       fprintf(fp, "_eintrnames:\n");
       fprintf(fp, "\n\t.globl\t_intrcnt\n");
       fprintf(fp, "\n\t.globl\t_eintrcnt\n");
       fprintf(fp, "_intrcnt:\n", I_FIXED);
       fprintf(fp, "\t.space\t4 * %d\n", I_FIXED);
       fprintf(fp, "_fltintrcnt:\n", cntcnt);
       fprintf(fp, "\t.space\t4 * %d\n", cntcnt);
       fprintf(fp, "_eintrcnt:\n\n");
       fprintf(fp, "\t.text\n");
}