extern void __init_data(void)
{
__pic_rom_copy_info *dci;
__pic_bss_init_info *bii;
int delta = __get_runtime_linktime_delta();
unsigned int size;
unsigned char *ram_addr; /* address in ram (executing address) */
unsigned char *ram_end; /* end address in ram (executing address) */
unsigned char *rom_addr; /* address in rom */
unsigned char *rom_end; /* end address in rom */
int internal;
/* for sda pic pid, if ram_end and ram_addr are swapped so that ram_end < ram_addr, */
/* then segment is internal, otherwise it is external. for eabi, addresses are external */
dci = _pic_rom_copy_info;
while (1) {
if (dci->rom_addr == 0 && dci->ram_addr == 0 && dci->ram_end == 0) break;
internal = (dci->rom_end < dci->rom_addr);
if (internal) {
rom_addr = dci->rom_end + delta;
rom_end = dci->rom_addr + delta;
} else {
rom_addr = dci->rom_addr;
rom_end = dci->rom_end;
}
internal = (dci->ram_end < dci->ram_addr);
if (internal) {
ram_addr = dci->ram_end + delta;
ram_end = dci->ram_addr + delta;
} else {
ram_addr = dci->ram_addr;
ram_end = dci->ram_end;
}
size = (unsigned int) (ram_end - ram_addr);
__copy_rom_section(ram_addr, rom_addr, size);
dci++;
}
/* Initialize with zeros: */
bii = _pic_bss_init_info;
while (1) {
if (bii->ram_addr == 0 && bii->ram_end == 0) break;
internal = (bii->ram_end < bii->ram_addr);
if (internal) {
ram_addr = bii->ram_end + delta;
ram_end = bii->ram_addr + delta;
} else {
ram_addr = bii->ram_addr;
ram_end = bii->ram_end;
}
size = (unsigned int) (ram_end - ram_addr);
__init_bss_section(ram_addr, size);
bii++;
}
/* now that data is copied to ram, we can fix up initialized pointers */
__mwerks_fixup_relocations();
}
/*
* Routine that copies all sections the user marked as ROM into
* their target RAM addresses ...
*
* __S_romp is automatically generated by the linker if it
* is referenced by the program. It is a table of RomInfo
* structures. The final entry in the table has all-zero
* fields.
*/
static void __copy_rom_sections_to_ram(void)
{
RomInfo *info;
/*
* Go through the entire table, copying sections from ROM to RAM.
*/
for (info = _S_romp; info->Source != 0L || info->Target != 0L || info->Size != 0; ++info)
__copy_rom_section( (char *)info->Target,(char *)info->Source, info->Size);
}
/*
* Routine that copies all sections the user marked as ROM into
* their target RAM addresses ...
*
* __S_romp is defined in the linker command file
* It is a table of RomInfo
* structures. The final entry in the table has all-zero
* fields.
*/
void __copy_rom_sections_to_ram(void)
{
int index;
if (__S_romp == 0L) return;
/*
* Go through the entire table, copying sections from ROM to RAM.
*/
for (index = 0;
__S_romp[index].Source != 0 ||
__S_romp[index].Target != 0 ||
__S_romp[index].Size != 0;
++index)
{
__copy_rom_section( __S_romp[index].Target,
__S_romp[index].Source,
__S_romp[index].Size );
}
}
