137 lines
2.4 KiB
C
137 lines
2.4 KiB
C
/*
|
|
* @(#)prf.c 1.1 94/10/31 Copyright (c) 1985 by Sun Microsystems, Inc.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <mon/sunromvec.h>
|
|
|
|
/*
|
|
* Scaled down version of C Library printf.
|
|
* Used to print diagnostic information directly on console tty.
|
|
* Since it is not interrupt driven, all system activities are
|
|
* suspended. Printf should not be used for chit-chat.
|
|
*
|
|
* One additional format: %b is supported to decode error registers.
|
|
* Usage is:
|
|
* printf("reg=%b\n", regval, "<base><arg>*");
|
|
* Where <base> is the output base expressed as a control character,
|
|
* e.g. \10 gives octal; \20 gives hex. Each arg is a sequence of
|
|
* characters, the first of which gives the bit number to be inspected
|
|
* (origin 1), and the next characters (up to a control character, i.e.
|
|
* a character <= 32), give the name of the register. Thus
|
|
* printf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
|
|
* would produce output:
|
|
* reg=2<BITTWO,BITONE>
|
|
*/
|
|
/*VARARGS1*/
|
|
printf(fmt, x1)
|
|
char *fmt;
|
|
unsigned x1;
|
|
{
|
|
|
|
prf(fmt, &x1);
|
|
}
|
|
|
|
prf(fmt, adx)
|
|
register char *fmt;
|
|
register u_int *adx;
|
|
{
|
|
register int b, c, i;
|
|
register char *s;
|
|
register int any;
|
|
|
|
loop:
|
|
while ((c = *fmt++) != '%') {
|
|
if(c == '\0')
|
|
return;
|
|
putchar(c);
|
|
}
|
|
again:
|
|
c = *fmt++;
|
|
switch (c) {
|
|
|
|
case 'l':
|
|
goto again;
|
|
case 'x': case 'X':
|
|
b = 16;
|
|
goto number;
|
|
case 'd': case 'D':
|
|
case 'u': /* what a joke */
|
|
b = 10;
|
|
goto number;
|
|
case 'o': case 'O':
|
|
b = 8;
|
|
number:
|
|
printn((u_long)*adx, b);
|
|
break;
|
|
case 'c':
|
|
b = *adx;
|
|
putchar(b);
|
|
break;
|
|
case 'b':
|
|
b = *adx++;
|
|
s = (char *)*adx;
|
|
printn((u_long)b, *s++);
|
|
any = 0;
|
|
if (b) {
|
|
putchar('<');
|
|
while (i = *s++) {
|
|
if (b & (1 << (i-1))) {
|
|
if (any)
|
|
putchar(',');
|
|
any = 1;
|
|
for (; (c = *s) > 32; s++)
|
|
putchar(c);
|
|
} else
|
|
for (; *s > 32; s++)
|
|
;
|
|
}
|
|
putchar('>');
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
s = (char *)*adx;
|
|
while (c = *s++)
|
|
putchar(c);
|
|
break;
|
|
}
|
|
adx++;
|
|
goto loop;
|
|
}
|
|
|
|
/*
|
|
* Printn prints a number n in base b.
|
|
* We don't use recursion to avoid deep kernel stacks.
|
|
*/
|
|
printn(n, b)
|
|
register u_long n;
|
|
register short b;
|
|
{
|
|
char prbuf[11];
|
|
register char *cp;
|
|
|
|
if (b == 10 && (int)n < 0) {
|
|
putchar('-');
|
|
n = (unsigned)(-(int)n);
|
|
}
|
|
cp = prbuf;
|
|
do {
|
|
*cp++ = "0123456789abcdef"[n%b];
|
|
n /= b;
|
|
} while (n);
|
|
do
|
|
putchar(*--cp);
|
|
while (cp > prbuf);
|
|
}
|
|
|
|
/*
|
|
* Print a character on console.
|
|
*/
|
|
putchar(c)
|
|
int c;
|
|
{
|
|
|
|
(*romp->v_putchar)(c);
|
|
}
|