MPC5744 MSR Register Reading in C Program

[juliusjai]

Hi,

Does anybody know how to implement in C program the reading of MPC5744 - Machine State Register (MSR) register?

I need this for the Critical Section implementation.

Thanks in advance.

Cheers!

Julius

[alexanderfedoto]

Have you tried asm("mfmsr 4") so that register 4 will hold MSR value ?

You have to use extended inline assembler syntax to read the value in C variable (Using the GNU Compiler Collection (GCC): Extended Asm )

[juliusjai]

Hi Alex,

Thanks for the hint.

I'll try.