addr64_t Union Reference

This union helps transfering pointers between PPE and the SPE. More...

#include <types.h>

Data Fields
struct {
void *   pad
	Padding for 32bit effective addresses.
void *   p
	Pointer to effective address.
};
uint64_t	ull
	Cast of the effective address to 64bit interger value for SPE-usage.
uint32_t	ui [2]
	Cast of the effective address to two 32bit integers for convenience.

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Detailed Description

This union helps transfering pointers between PPE and the SPE.

On the SPEs, any pointer to effective adresses has a size 64bit. Thus transfering pointers between PPE and SPEs may be painful if PPE-code is compiled for 32bit via the compiler-flag -m32. This structure helps transfering pointers by adding a 32bit padding in case of 32bit-code. The padding must be 0 for 32bit addresses.

Definition at line 68 of file types.h.

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Field Documentation

void* addr64_t::pad

Padding for 32bit effective addresses.

Must be 0. This member only exists for 32bit-code.

Definition at line 73 of file types.h.

void* addr64_t::p

Pointer to effective address.

32bit or 64bit depending on compiler flag.

Definition at line 75 of file types.h.

uint64_t addr64_t::ull

Cast of the effective address to 64bit interger value for SPE-usage.

Definition at line 77 of file types.h.

uint32_t addr64_t::ui[2]

Cast of the effective address to two 32bit integers for convenience.

Definition at line 78 of file types.h.

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The documentation for this union was generated from the following file:

• types.h