IDATA - Begin an Object File Initialized Data Section

IDATA - Begin an Object File Initialized Data Section

Syntax

[<label>] idata [<RAM address>]

Description

For use when generating an object file. Declares the beginning of a section of initialized data. If <label> is not specified, the section is named .idata. The starting address is initialized to the specified address or will be assigned at link time if no address is specified. No code can be generated in this segment.

The linker will generate a look-up table entry for each byte specified in an idata section. You must then link or include the appropriate initialization code. Examples of initialization code that may be used and modified as needed may be found with MPLINK linker sample application examples.

Note: This directive is not available for 12-bit core devices.

The res, db and dw directives may be used to reserve space for variables. res will generate an initial value of zero. db will initialize successive bytes of RAM. dw will initialize successive bytes of RAM, one word at a time, in low-byte/high-byte order.

For more information, refer to Relocatable Objects.

Example

idata

LimitL dw 0

LimitH dw D'300'

Gain dw D'5'

Flags db 0

String db 'Hi there!'

See Also

EXTERN GLOBAL UDATA UDATA_ACS UDATA_OVR UDATA_SHR