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75

answers:

2

I'm writing to memory space a few address and I need to optimize the code. There is a better way to do the following?

SETB 00h
SETB 01h
SETB 02h
SETB 03h
SETB 04h
SETB 05h
SETB 06h
SETB 07h
+5  A: 

I think what you want to do is:

MOV 20h,#0FFh

this should be equivalent to setting each byte

carlfilips
Thank you Sanjana. I just try it and it works.
carlfilips
+2  A: 

I see techspecs and indirect adress is better for change

MOV @R0,#0FFh
carlfilips