speedups for ubasetup (from speck)

[unix-history] / usr / src / sys / vax / uba / uba.c

diff --git a/usr/src/sys/vax/uba/uba.c b/usr/src/sys/vax/uba/uba.c
index 5ad920e..811f88e 100644 (file)
--- a/usr/src/sys/vax/uba/uba.c
+++ b/usr/src/sys/vax/uba/uba.c
@@ -1,4 +1,4 @@
-/*     uba.c   6.3     85/01/18        */
+/*     uba.c   6.4     85/03/19        */

 
 #include "../machine/pte.h"
 
 
 #include "../machine/pte.h"
 


@@ -105,7 +105,7 @@ ubasetup(uban, bp, flags)
        struct buf *bp;
 {
        register struct uba_hd *uh = &uba_hd[uban];
        struct buf *bp;
 {
        register struct uba_hd *uh = &uba_hd[uban];

-       register int temp;
+       int pfnum, temp;

        int npf, reg, bdp;
        unsigned v;
        register struct pte *pte, *io;
        int npf, reg, bdp;
        unsigned v;
        register struct pte *pte, *io;


@@ -168,9 +168,11 @@ ubasetup(uban, bp, flags)
                pte = vtopte(rp, v);
        io = &uh->uh_uba->uba_map[reg];
        while (--npf != 0) {
                pte = vtopte(rp, v);
        io = &uh->uh_uba->uba_map[reg];
        while (--npf != 0) {

-               if (pte->pg_pfnum == 0)
+               pfnum = pte->pg_pfnum;
+               if (pfnum == 0)

                        panic("uba zero uentry");
                        panic("uba zero uentry");

-               *(int *)io++ = pte++->pg_pfnum | temp;
+               pte++;
+               *(int *)io++ = pfnum | temp;

        }
        *(int *)io++ = 0;
        return (ubinfo);
        }
        *(int *)io++ = 0;
        return (ubinfo);