# ARM

ARM based chips

## ARM Processor Architecture

* based on RISC
  * fixed length inst.
  * load-store arch
    * memory-to-register load inst.
    * register-to-memory store inst.
  * large uniform register file
  * 32bit arch(v1-v7), 64bit arch(v8-v9)
  * good performance/power

## ARM Processor Family

```python { cmd matplotlib hide }

import pymupdf

from PIL import Image

doc = pymupdf.open("./pdf/L3.pdf")

pix = doc[6].get_pixmap()
img = Image.frombytes("RGB", [pix.width, pix.height], pix.samples)
plt.axis('off')
plt.subplots_adjust(left=0, right=1, top=1, bottom=0)
plt.imshow(img)

plt.show()

```