58

Chapter 8. Assembler Directives

If you do not use

.psize

, listings use a default line count of 60. You may omit the comma and

columns

specification; the default width is 200 columns.

as

generates formfeeds whenever the specified number of lines is exceeded (or whenever you explic 

itly request one, using

.eject

).

If you specify

lines

as

0

, no formfeeds are generated save those explicitly specified with

.eject

.

8.72.

.purgem name

Undefine the macro

name

, so that later uses of the string will not be expanded. Section 8.60

.macro

.

8.73.

.pushsection name, subsection

This is one of the ELF section stack manipulation directives. The others are

.section

(Section 8.78

.section name

),

.subsection

(Section 8.89

.subsection name

),

.popsection

(Section 8.68

.popsection

), and

.previous

(Section 8.67

.previous

).

This directive pushes the current section (and subsection) onto the top of the section stack, and then

replaces the current section and subsection with

name

and

subsection

.

8.74.

.quad bignums

.quad

expects zero or more bignums, separated by commas. For each bignum, it emits an 8 byte

integer. If the bignum won't fit in 8 bytes, it prints a warning message; and just takes the lowest order

8 bytes of the bignum. The term "quad" comes from contexts in which a "word" is two bytes; hence

quad word for 8 bytes.

8.75.

.rept count

Repeat the sequence of lines between the

.rept

directive and the next

.endr

directive

count

times.

For example, assembling

.rept

3

.long

0

.endr

is equivalent to assembling

.long

0

.long

0

.long

0