FilesExpand file tree

 master

/

viper_addr.py

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

29 lines (23 loc) · 568 Bytes

 master

/

viper_addr.py

Copy path

Top

File metadata and controls

• Code
• Blame

29 lines (23 loc) · 568 Bytes

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

# test passing addresses to viper

@micropython.viper

def get_addr(x:ptr) -> ptr:

return x

@micropython.viper

def memset(dest:ptr8, c:int, n:int):

for i in range(n):

dest[i] = c

# create array and get its address

ar = bytearray('0000')

addr = get_addr(ar)

print(type(ar))

print(type(addr))

print(ar)

# pass array as an object

memset(ar, ord('1'), len(ar))

print(ar)

# pass direct pointer to array buffer

memset(addr, ord('2'), len(ar))

print(ar)

# pass direct pointer to array buffer, with offset

memset(addr + 2, ord('3'), len(ar) - 2)

print(ar)