Segment addressing

Functions
idaman DEPRECATED ea_t ida_export	get_segm_para (const segment_t *s)
	Get segment base paragraph.
idaman ea_t ida_export	get_segment_para (ea_t ea)
	Get segment base paragraph by address.
idaman DEPRECATED ea_t ida_export	get_segm_base (const segment_t *s)
	Get segment base linear address.
idaman ea_t ida_export	get_segment_base (ea_t ea)
	Get segment base linear address by address.
idaman DEPRECATED bool ida_export	set_segm_addressing (segment_t *s, size_t bitness)
	Change segment addressing mode (16, 32, 64 bits).
idaman bool ida_export	set_segment_addressing (ea_t ea, size_t bitness)
	Change segment addressing mode (16, 32, 64 bits) by address.
idaman bool ida_export	is_same_segment (ea_t ea1, ea_t ea2)
	Check two addresses belong to one segment.

Detailed Description

Function Documentation

get_segm_para()

idaman DEPRECATED ea_t ida_export get_segm_para

(

const segment_t *

s

)

Get segment base paragraph.

Deprecated

Use segment_info_t::para() or get_segment_para() for safer access. Segment base paragraph may be converted to segment base linear address using to_ea() function. In fact, to_ea(get_segm_para(s), 0) == get_segm_base(s).

Parameters

s	pointer to segment

Returns

0 if s == nullptr, the segment base paragraph

get_segment_para()

idaman ea_t ida_export get_segment_para

(

ea_t

ea

)

Get segment base paragraph by address.

Segment base paragraph may be converted to segment base linear address using to_ea() function.

Parameters

ea	any linear address within the segment

Returns

0 if no segment at ea, otherwise the segment base paragraph

get_segm_base()

idaman DEPRECATED ea_t ida_export get_segm_base

(

const segment_t *

s

)

Get segment base linear address.

Deprecated

Use segment_info_t::base() or get_segment_base() for safer access. Segment base linear address is used to calculate virtual addresses. The virtual address of the first byte of the segment will be (start address of segment - segment base linear address)

Parameters

s	pointer to segment

Returns

0 if s == nullptr, otherwise segment base linear address

get_segment_base()

idaman ea_t ida_export get_segment_base

(

ea_t

ea

)

Get segment base linear address by address.

Segment base linear address is used to calculate virtual addresses. The virtual address of the first byte of the segment will be (start address of segment - segment base linear address)

Parameters

ea	any linear address within the segment

Returns

0 if no segment at ea, otherwise segment base linear address

set_segm_addressing()

idaman DEPRECATED bool ida_export set_segm_addressing	(	segment_t *	s,
		size_t	bitness )

Change segment addressing mode (16, 32, 64 bits).

You must use this function to change segment addressing, never change the 'bitness' field directly. This function will delete all instructions, comments and names in the segment

Deprecated

Use segment_info_t::set_bitness() and set_segment_info() or set_segment_addressing().

Parameters

s	pointer to segment
bitness	new addressing mode of segment 2: 64-bit segment 1: 32-bit segment 0: 16-bit segment

Returns

success

set_segment_addressing()

idaman bool ida_export set_segment_addressing	(	ea_t	ea,
		size_t	bitness )

Change segment addressing mode (16, 32, 64 bits) by address.

You must use this function to change segment addressing, never change the 'bitness' field directly. This function will delete all instructions, comments and names in the segment

Parameters

ea	any address within the segment
bitness	new addressing mode of segment 2: 64-bit segment 1: 32-bit segment 0: 16-bit segment

Returns

success

is_same_segment()

idaman bool ida_export is_same_segment	(	ea_t	ea1,
		ea_t	ea2 )

Check two addresses belong to one segment.

Parameters

ea1	linear address
ea2	linear address

Returns

true if two addresses belong to one segment or they both are not belong to any segment