Epson S5U1C17001C, Manual

Page: 412 / 742

8-6
EPSOn
S5U1C17001C ManUal
(C COMPilEr PaCkagE fOr S1C17 faMily) (Ver. 1.5.0)
8 aSSEMBlEr
8.5.2 Data Section Defining Directives (
.rodata
,
.data
)
list of data section defining directives
.rodata
Declares a
.rodata
section in which constants are located.
.data
Declares a
.data
section in which data with initial values are located.
instruction format
.section .rodata
.section .data
Description
(1)
.section .rodata
Declares the start of a constant data section. Statements following this instruction are assembled as those to
be mapped in the
.rodata
section, until another section is declared. Usually, this section will be mapped
into a read-only memory at the stage of linkage.
Example:
.section .rodata
Defines a
.rodata
section.
(2)
.section .data
Declares the start of a data section with an initial value. Statements following this instruction are assembled
as those to be mapped in the
.data
section, until another section is declared. Usually, this section will be
mapped into a read-only memory at the stage of linkage and data in this section must be copied to a read/
write memory such as a RAM by the software before using.
Example:
.section .data
Defines a
.data
section.
note
The data space allocated by the data-define directive is as follows:
1 byte:
.byte
2 bytes:
.short
,
.hword
,
.word
,
.int
4 bytes:
.long