Describes an argument location. More...

#include <typeinf.hpp>

Inherited by argpart_t.

Public Types
typedef size_t	biggest_t

Public Member Functions
	argloc_t (void)
	Constructor.

	argloc_t (const argloc_t &r)
	Constructor.

	~argloc_t (void)
	Destructor.

argloc_t &	operator= (const argloc_t &r)
	Constructor.

void	swap (argloc_t &r)
	Assign this == r and r == this.

const char *	dstr (void) const

argloc_type_t	atype (void) const
	Get type (Argument location types)

bool	is_reg1 (void) const
	See ALOC_REG1.

bool	is_reg2 (void) const
	See ALOC_REG2.

bool	is_reg (void) const
	is_reg1() \|\| is_reg2()

bool	is_rrel (void) const
	See ALOC_RREL.

bool	is_ea (void) const
	See ALOC_STATIC.

bool	is_stkoff (void) const
	See ALOC_STACK.

bool	is_scattered (void) const
	See ALOC_DIST.

bool	has_reg () const
	TRUE if argloc has a register part.

bool	has_stkoff () const
	TRUE if argloc has a stack part.

bool	is_mixed_scattered () const
	mixed scattered: consists of register and stack parts

bool	in_stack () const
	TRUE if argloc is in stack entirely.

bool	is_fragmented (void) const
	is_scattered() \|\| is_reg2()

bool	is_custom (void) const
	See ALOC_CUSTOM.

bool	is_badloc (void) const
	See ALOC_NONE.

int	reg1 (void) const
	Get the register info. More...

int	regoff (void) const
	Get offset from the beginning of the register in bytes. More...

int	reg2 (void) const
	Get info for the second register. More...

uint32	get_reginfo (void) const
	Get all register info. More...

sval_t	stkoff (void) const
	Get the stack offset. More...

ea_t	get_ea (void) const
	Get the global address. More...

scattered_aloc_t &	scattered (void)
	Get scattered argument info. More...

const scattered_aloc_t &	scattered (void) const
	Get scattered argument info. More...

rrel_t &	get_rrel (void)
	Get register-relative info. More...

const rrel_t &	get_rrel (void) const
	Get register-relative info. More...

void *	get_custom (void) const
	Get custom argloc info. More...

biggest_t	get_biggest (void) const
	Get largest element in internal union.

void	_set_badloc (void)
	Use set_badloc()

void	_set_reg1 (int reg, int off=0)
	Use set_reg1()

void	_set_reg2 (int _reg1, int _reg2)
	Use set_reg2()

void	_set_stkoff (sval_t off)
	Use set_stkoff()

void	_set_ea (ea_t _ea)
	Use set_ea.

bool	_consume_rrel (rrel_t *p)
	Use consume_rrel()

bool	_consume_scattered (scattered_aloc_t *p)
	Use consume_scattered()

void	_set_custom (argloc_type_t ct, void *pdata)
	Set custom argument location (careful - this function does not clean up!)

void	_set_biggest (argloc_type_t ct, biggest_t data)
	Set biggest element in internal union (careful - this function does not clean up!)

void	set_reg1 (int reg, int off=0)
	Set register location.

void	set_reg2 (int _reg1, int _reg2)
	Set secondary register location.

void	set_stkoff (sval_t off)
	Set stack offset location.

void	set_ea (ea_t _ea)
	Set static ea location.

void	consume_rrel (rrel_t *p)
	Set register-relative location - can't be nullptr.

void	consume_scattered (scattered_aloc_t *p)
	Set distributed argument location.

void	set_badloc (void)
	Set to invalid location.

sval_t	calc_offset (void) const
	Calculate offset that can be used to compare 2 similar arglocs.

bool	advance (int delta)
	Move the location to point 'delta' bytes further.

void	align_reg_high (size_t size, size_t _slotsize)
	Set register offset to align it to the upper part of _SLOTSIZE.

void	align_stkoff_high (size_t size, size_t _slotsize)
	Set stack offset to align to the upper part of _SLOTSIZE.

Detailed Description

Describes an argument location.

A typical argument is stored in one location, either a register or a stack slot.
However, some arguments can be stored in multiple locations, for example in a pair
of registers. In some really complex cases an argument can be located in multiple
registers and some stack slots. This class can describe all these cases.