SEC_SRAM
SEC_SRAM, 0, SEC_PAGESIZE / 2);
SEC_SRAM + (src % SEC_PAGESIZE / 2));
SEC_SRAM + src % SEC_PAGESIZE / 2, wptr, cnt / 2);
SEC_SRAM + src % SEC_PAGESIZE / 2) & 0xff;
SEC_SRAM + (dest % SEC_PAGESIZE / 2));
SEC_SRAM + (dest % SEC_PAGESIZE / 2), tmp);
SEC_SRAM + (dest % SEC_PAGESIZE / 2));
SEC_SRAM + (dest % SEC_PAGESIZE / 2), tmp);