accessing program counter in 8051

[grittinjames]

what is program counter in 8051

hai

how we can find out present present value of program counter in program

 

[IanP]

There is no way to read the value of PC (internal Program Memory) ..
But, if you, for example, trigger an interrupt you can read (within interrupt routine) the very first two byes from the Stack - they will be PCH and PCL ..
This would be like asking: What address are you about to execute next (after returning from interrupt) ..

Regards,
IanP

 

[XNOX_Rambo]

Other options: **broken link removed**

 

[grittinjames]

this is a good idea