A83: Using the IY register


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A83: Using the IY register




G'day guys/gals,
  I just wanted to check something - if you wanted to use the IY register 
for something in your program you would have to do the following:

di                   ; Disable interrupts so IY can be used
push iy              ; Preserve IY (pointer to system flags)
{code}
pop iy
ei

  The "di" and "ei" are required.. correct? I think so, cos not having them 
caused one of bugs in my game I think...

James Vernon
jimbob_v@hotmail.com

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