MIPS EABI
			=========

Sizes and alignments
--------------------

	Type		Size (bytes)	Alignment (bytes)

	char		1		1
	short		2		2
	int		4		4
	unsigned	4		4
	long		4		4 (32-bit mode)
			8		8 (64-bit mode)
	long long	8		8
	float		4		4
	double		8		8
	pointers	4		4 (32-bit mode)
			8		8 (64-bit mode)

* alignment within aggregates (structs and unions) is as above, with
  padding added if needed
* aggregates have alignment equal to that of their most aligned
  member
* aggregates have sizes which are a multiple of their alignment

ia32 Sizes and alignments
--------------------

	Type		Size (bytes)	Alignment (bytes)

	char		1		1
	short		2		2
	int		4		4
	unsigned	4		4
	long		4		4 
	long long	8		4
	float		4		4
	double		8		4
	pointers	4		4 

* alignment within aggregates (structs and unions) is as above, with
  padding added if needed
* aggregates have alignment equal to that of their most aligned
  member
* aggregates have sizes which are a multiple of their alignment
  This may result in tail padding.

ia64 Sizes and alignments
--------------------

	Type		Size (bytes)	Alignment (bytes)

	char		1		1
	short		2		2
	int		4		4
	unsigned	4		4
	long		8		8 
	long long	8		8
	float		4		4
	double		8		8
	pointers	8		8 

    * An entire structure or union object shall be aligned on the same 
      boundary as its most strictly aligned member.
    * Each member shall be assigned to the lowest available offset with the 
      appropriate alignment. This may require internal padding, depending 
      on the previous member.
    * A structure's size shall be increased, if necessary, to make it a 
      multiple of the alignment. This may require tail padding, depending 
      on the last member. 

AMD 64
-------


	Type		Size (bytes)	Alignment (bytes)

	char		1		1
	short		2		2
	int		4		4
	unsigned	4		4
	long		4		4 
			8		8 (64-bit mode)
	long long	8		4
			8		8 (64-bit mode)
	float		4		4
	double		8		4
	pointers	4		4 
			8		8 (64-bit mode)

powerpc - 32bit

	Type		Size (bytes)	Alignment (bytes)

	char		1		1
	short		2		2
	int		4		4
	unsigned	4		4
	long	        4		4
	long long	8		8
	float		4		4
	double		8		8
	long double	16		16
	pointers	4		4 

powerpc - 64bit
	Type		Size (bytes)	Alignment (bytes)

	char		1		1
	short		2		2
	int		4		4
	unsigned	4		4
	long	        8		8
	long long	8		8
	int128  	16		16
	float		4		4
	double		8		8
	long double	16		16
	pointers	8		8 


sparc:
	Type		Size (bytes)	Alignment (bytes)

	char		1		1
	short		2		2
	int		4		4
	unsigned	4		4
	long	        4		4
	long long	8		8
	float		4		4
	double		8		8
	long double	16		8
	pointers	4		4 


s390:
------
	Type		Size (bytes)	Alignment (bytes)

	char		1		1
	short		2		2
	int		4		4
	unsigned	4		4
	long	        4		4
	long long	8		8
	float		4		4
	double		8		8
	long double	16		16
	pointers	4		4 

s390-zseries
---------