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#include "u.h"
#include "../port/lib.h"
#include "mem.h"
#include "dat.h"
#include "fns.h"
#include "io.h"
#include "ureg.h"
static char*
getline(void)
{
static char buf[128];
int i, c;
for(i = 0; i < sizeof(buf)-1 && (c=uartgetc()) != '\n'; i++)
buf[i] = c;
buf[i] = 0;
return buf;
}
static void*
addr(char *s, Ureg *ureg, char **p)
{
uvlong a;
a = strtoull(s, p, 16);
if(a < sizeof(Ureg))
return ((uchar*)ureg)+a;
return (void*)(uintptr)a;
}
static void
talkrdb(Ureg *ureg)
{
uchar *a;
char *p, *req;
if(consuart == nil)
return;
if(serialoq != nil){
qhangup(serialoq, nil);
if(consuart->phys->disable != nil)
consuart->phys->disable(consuart);
if(consuart->phys->enable != nil)
consuart->phys->enable(consuart, 0);
serialoq = nil;
}
kprintoq = nil; /* turn off /dev/kprint if active */
iprint("Edebugger reset\n");
for(;;){
req = getline();
switch(*req){
case 'r':
a = addr(req+1, ureg, nil);
iprint("R%.8zux %.2ux %.2ux %.2ux %.2ux\n",
(uintptr)a, a[0], a[1], a[2], a[3]);
break;
case 'w':
a = addr(req+1, ureg, &p);
*(ulong*)a = strtoul(p, nil, 16);
iprint("W\n");
break;
default:
iprint("Eunknown message\n");
break;
}
}
}
void
rdb(void)
{
splhi();
iprint("rdb...");
callwithureg(talkrdb);
}
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