User`s guide

Chapter 5: Examining and Changing Data

The variable types are listed in Table 5-5.

Examples include:

(dbx) pd sc

-1

(dbx) pd ssh

-1

(dbx) px sc

0xff

(dbx) px ssh

0xffff

(dbx) pd usc

255

(dbx) pd ush

65535

dbx always prints the bits in the appropriate type. pd is an exception; it

expands signed types with sign extension so the decimal value looks correct.

Another example:

(dbx) print sc, usc

’\377’ ’\377’

If $hexchars is set, this command displays ’0xff’ ‘0xff’. (This is a change

from releases previous to IRIX 5.2. Previously, the px, po cases on signed

short expanded to 32 bits, so px sc printed 0xffffffff.)

If the printed data type is pointer, dbx uses the format speciﬁed in the

$addrfmt or $addrfmt64 predeﬁned dbx variable ($addrfmt64 is used on

only 64-bit processes).

Table 5-5 Variable Types

Type Variable Name Value

signed char sc 0xff

unsigned char usc 0xff

signed short ssh 0xffff

unsigned short ush 0xffff