Zilog EZ80F916 - Manual (Page 224)

UM014423-0607
ZiLOG Developer Studio II
eZ80Acclaim! ® User Manual
204
For more information on the
SEGMENT
directive, see “Segments” on page 184.
Synonym
.define
Syntax
<segment_definition> =>
DEFINE
<ident>[<space_clause>][align_clause>][<org_clause>]
Example
DEFINE near_code ; Uses the defaults of the current
; space, byte alignment and relocatable.
DEFINE irq_table,ORG=%FFF8 ; Uses current space byte alignment and
; absolute starting address at
; memory location %FFF8.
ALIGN Clause
Allows you to select the alignment boundary for a segment. The linker places modules in
this segment on the defined boundary. The boundary, expressed in bytes, must be a power
of two (1, 2, 4, 8, and so on).
Syntax
<align_clause> => ,
ALIGN
= <int_const>
ORG Clause
Allows you to specify where the segment is to be located, making the segment an absolute
segment. The linker places the segment at the memory location specified by the ORG
clause.The default is no
ORG
, and thus the segment is relocatable.
Syntax
<org_clause> => ,
ORG
= <int_const>
Examples
DEFINE near_data
; Uses the defaults of ROM, byte alignment and relocatable.
DEFINE far_data,SPACE = RAM,ALIGN = 2
; Aligns on a 2-byte boundary, uses RAM space, relocatable.
DEFINE near_code,ORG = %FFF8