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PIC 18C Microcontoller Program Flow Method

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Multilevel returns

Bob Ammerman [rammerman at prodigy.net] of RAm Systems says

The PIC18Cxx2 chips contain quite a few nice new features. One of the neatest is programmable access to the stack. This feature allows many powerful tricks.

Notes:

  1. this code has _NOT_ been tested!
  2. all multi-byte values are little-endian
  3. I assume the code space never exceeds 16 bits worth (which it never will on the 242, 252, 442 or 452 chips). 
Multilevel returns

; return to my caller's caller

 pop
 return

; return to my caller's caller's caller

 pop
 pop
 return

; return to my caller's caller's caller's caller

 pop
 pop
 pop
 return
file: /techref/microchip/18c/multiret-ba.htm, 1KB, , updated: 2000/6/30 12:53, local time: 2008/7/5 15:46,
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