tregs.c - plan9port - [fork] Plan 9 from user space
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       ---
       tregs.c (718B)
       ---
            1 /*
            2  * code to keep track of registers
            3  */
            4 
            5 #include "defs.h"
            6 #include "fns.h"
            7 
            8 /*
            9  * print the registers
           10  */
           11 void
           12 printregs(int c)
           13 {
           14         Regdesc *rp;
           15         int i;
           16         ADDR u;
           17 
           18         if(correg == nil){
           19                 dprint("registers not mapped\n");
           20                 return;
           21         }
           22 
           23         for (i = 1, rp = mach->reglist; rp->name; rp++, i++) {
           24                 if ((rp->flags & RFLT)) {
           25                         if (c != 'R')
           26                                 continue;
           27                         if (rp->format == '8' || rp->format == '3')
           28                                 continue;
           29                 }
           30                 rget(correg, rp->name, &u);
           31                 if(rp->format == 'Y')
           32                         dprint("%-8s %-20#llux", rp->name, (uvlong)u);
           33                 else
           34                         dprint("%-8s %-12#lux", rp->name, (ulong)u);
           35                 if ((i % 3) == 0) {
           36                         dprint("\n");
           37                         i = 0;
           38                 }
           39         }
           40         if (i != 1)
           41                 dprint("\n");
           42         dprint ("%s\n", mach->exc(cormap, correg));
           43         printpc();
           44 }