/*
Open cylinder image and read RAM
*/
image_init_result apexc_cylinder_image_device::call_load()
{
/* load RAM contents */
m_writable = !is_readonly();
fread( machine().root_device().memshare("maincpu")->ptr(), 0x1000);
#ifdef LSB_FIRST
{ /* fix endianness */
uint32_t *RAM = (uint32_t *)(machine().root_device().memshare("maincpu")->ptr());
for (int i=0; i < 0x0400; i++)
RAM[i] = big_endianize_int32(RAM[i]);
}
#endif
return image_init_result::PASS;
}
/*
Open cylinder image and read RAM
*/
bool apexc_cylinder_image_device::call_load()
{
/* load RAM contents */
m_writable = !is_readonly();
fread( machine().root_device().memregion("maincpu")->base(), 0x1000);
#ifdef LSB_FIRST
{ /* fix endianness */
UINT32 *RAM = (UINT32 *)(machine().root_device().memregion("maincpu")->base());
for (int i=0; i < 0x0400; i++)
RAM[i] = big_endianize_int32(RAM[i]);
}
#endif
return IMAGE_INIT_PASS;
}
/*
Save RAM to cylinder image and close it
*/
void apexc_cylinder_image_device::call_unload()
{
if (m_writable)
{ /* save RAM contents */
/* rewind file */
fseek(0, SEEK_SET);
#ifdef LSB_FIRST
{ /* fix endianness */
uint32_t *RAM = (uint32_t *)(machine().root_device().memshare("maincpu")->ptr());
for (int i=0; i < /*0x2000*/0x0400; i++)
RAM[i] = big_endianize_int32(RAM[i]);
}
#endif
/* write */
fwrite(machine().root_device().memshare("maincpu")->ptr(), /*0x8000*/0x1000);
}
}