WORD_SIZE
pop (\regs_ofs + reg_num * WORD_SIZE)(\dst)
mov (\regs_ofs + reg_num * WORD_SIZE)(\src), \reg
mov \reg, (\regs_ofs + reg_num * WORD_SIZE)(\dst)
int words = bytes / WORD_SIZE;
addr = (reg / WORD_SIZE) % (BANK_SIZE / WORD_SIZE);
reg += WORD_SIZE;
.stride = WORD_SIZE,
.word_size = WORD_SIZE,
#define WORD_BITS (WORD_SIZE * BITS_PER_BYTE)
#define WORDS_PER_CHUNK (RIM_CHUNK_SIZE/WORD_SIZE)
ret = delta_bytes/WORD_SIZE;