• State Accepted Answer
  • +1 person also asked this people also asked this
  • Locked Locked
  • Replies 1 reply
  • Subscribers 351 subscribers
  • Views 19405 views
  • Users 0 members are here
2025 survey

We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.

Options
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Bit scan Instruction ARM cortex R4

Yash

Hi all,

I need help for to convert logic in following way:

if 1st bit set in  (00000000000000000000000000001)  i can get 1

f 1st bit set in  (00000000000000000000000000100)  i can get 2

f 1st bit set in  (00000000000000000100000000000)  i can get 11

...........................................................................................................

f 1st bit set in  (10000000000000000000000000001)  i can get 31

is there any instruction for ARM cortex-r4. i found BSF but i do not think it support .

 

" I mean to say i just want to get the set bit position number in  uint32 data ". 

 

Please help me .

0