de2-115-fpga-pong/software/hello_world_bsp/HAL/inc/sys/alt_load.h

/******************************************************************************
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* License Agreement                                                           *
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* Copyright (c) 2005 Altera Corporation, San Jose, California, USA.           *
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******************************************************************************/

#include "alt_types.h"

/*
 * This macro is used to load code/data from its load address to its 
 * execution address for a given section. The section name is the input
 * argument. Note that a leading '.' is assumed in the name. For example
 * to load the section .onchip_ram, use:
 * 
 * ALT_LOAD_SECTION_BY_NAME(onchip_ram);
 * 
 * This requires that the apropriate linker symbols have been generated
 * for the section in question. This will be the case if you are using the
 * default linker script.
 */ 

#define ALT_LOAD_SECTION_BY_NAME(name)                         \
  {                                                            \
    extern void _alt_partition_##name##_start;                 \
    extern void _alt_partition_##name##_end;                   \
    extern void _alt_partition_##name##_load_addr;             \
                                                               \
    alt_load_section(&_alt_partition_##name##_load_addr,       \
                     &_alt_partition_##name##_start,           \
                     &_alt_partition_##name##_end);            \
  }

/*
 * Function used to load an individual section from flash to RAM.
 *
 * There is an implicit assumption here that the linker script will ensure
 * that all sections are word aligned.
 *
 */

static void ALT_INLINE alt_load_section (alt_u32* from, 
                                         alt_u32* to, 
                                         alt_u32* end)
{
  if (to != from)
  {
    while( to != end )
    {
      *to++ = *from++;
    }
  }
}