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#include <u.h>
#include <libc.h>
#include <bio.h>
#include "pci.h"
#include "vga.h"
int vflag, Vflag;
void
error(char* format, ...)
{
char buf[512], *out;
va_list arg;
int n;
sequencer(0, 1);
n = sprint(buf, "%s: ", argv0);
va_start(arg, format);
out = vseprint(buf+n, buf+sizeof(buf)-n, format, arg);
va_end(arg);
if(vflag)
Bprint(&stdout, "%s", buf+n);
Bflush(&stdout);
write(2, buf, out-buf);
exits("error");
}
void
trace(char* format, ...)
{
char buf[512];
va_list arg;
if(vflag || Vflag){
if(curprintindex){
curprintindex = 0;
Bprint(&stdout, "\n");
}
va_start(arg, format);
vseprint(buf, buf+sizeof(buf), format, arg);
va_end(arg);
Bprint(&stdout, "%s", buf);
if(Vflag)
print("%s", buf);
}
}
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