52

Chapter 8. Assembler Directives

is equivalent to assembling

move

d1,sp@ 

move

d2,sp@ 

move

d3,sp@ 

8.51.

.irpc symbol,values

. . .

Evaluate a sequence of statements assigning different values to

symbol

. The sequence of statements

starts at the

.irpc

directive, and is terminated by an

.endr

directive. For each character in

value

,

symbol

is set to the character, and the sequence of statements is assembled. If no

value

is listed,

the sequence of statements is assembled once, with

symbol

set to the null string. To refer to

symbol

within the sequence of statements, use

\symbol

.

For example, assembling

.irpc

param,123

move

d\param,sp@ 

.endr

is equivalent to assembling

move

d1,sp@ 

move

d2,sp@ 

move

d3,sp@ 

8.52.

.lcomm symbol, length

Reserve

length

(an absolute expression) bytes for a local common denoted by

symbol

. The section

and value of

symbol

are those of the new local common. The addresses are allocated in the bss

section, so that at run time the bytes start off zeroed.

Symbol

is not declared global (Section 8.41

.global symbol

,

.globl symbol

), so is normally not visible to

ld

.

Some targets permit a third argument to be used with

.lcomm

. This argument specifies the desired

alignment of the symbol in the bss section.

The syntax for

.lcomm

differs slightly on the HPPA. The syntax is

symbol .lcomm, length

;

symbol

is optional.

8.53.

.lflags

as

accepts this directive, for compatibility with other assemblers, but ignores it.