Integer in NIOS...

Question

Hello as i know integer can hold 2^16 data  but   
typedef struct flash_region
{
    int offset;/* Offset of this region from start of the flash */
    int region_size;/* Size of this erase region */
    int number_of_blocks;/* Number of blocks in this region */
    int block_size;/* Size of each block in this erase region */
}flash_region;the value if offset is larger than 2^16 - 1, how does NIOS II handle this ????  can someone clarify this for me....

altera_forum · Answer

Hello,  An integer is stored as 32 bits (cf Table 7–1 of the Nios II Processor Reference Handbook). And now this is true for all the machine I think, it is not particular to the Nios II.  Jérôme

altera_forum · Answer

You could use 'alt_u32' data type including library '#include &lt;alt_types.h&gt;'. It is of 32 bits and can serve your purpose

altera_forum · Answer

Indeed you can use also these types, but actually there are the same. If you looked at alt_types.h you have :  
typedef signed char  alt_8;
typedef unsigned char  alt_u8;
typedef signed short alt_16;
typedef unsigned short alt_u16;
typedef signed long alt_32;
typedef unsigned long alt_u32;
typedef long long alt_64;
typedef unsigned long long alt_u64;

altera_forum · Answer

Actually by using alt_u32 you will be sure that you have a 32-bit integer.

The C standard doesn't define the size of the int type, and depending on the compiler or architecture, "int" can mean 16, 32 or 64 bits. It has always been a problem with C and that's why each HAL redefines its own integer types.

altera_forum · Answer

But I face a problem of defining a 128bit type&lt; how can I solve this? Thanks

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Integer in NIOS...

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