In SX Microcontrollers, SX/B Compiler and SX-Key Tool, sammishal wrote:

Mr. Gunther,

Thank you for all the explanation. I actually know the difference between RET and RETP.

What I was confused about is whether RETW behaves like RET or like RETP after 
setting the W register.

I have done some testing and discovered that it is like RET in that it does not restore
the Page (top three bits of the Status register). IE it pops the 9 bit PC register of the stack
without restoring the page 3 bits inside the Status register.

So RETW <constant> is limited to being on the same page as the calling line
unless there is an express PAGE command  just before the  RETW command.


Anwy I think IREAD is much better and I will use this instead.

Regards

Samuel

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