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.
- this code has _NOT_ been tested!
- all multi-byte values are little-endian
- I assume the code space never exceeds 16 bits worth (which it never will on the 242, 252, 442 or 452 chips).
Function pointers (like in "C") CBLOCK FUNCPTR:2 ; Address of function to be called ENDC movlw low(funca) movwf FUNCPTR,A movlw high(funca) movwf FUNCPTR+1,A . . rcall call_func ; Calls funca xxx: . . bra ..whereever.. call_func: push ; Make room on call stack movf FUNCPTR,W,A movwf TOSL,A movf FUNCPTR+1,W,A movwf TOSH,A return funca: . . return ; returns to "xxx:", above
|file: /Techref/microchip/18c/funcptrs-ba.htm, 1KB, , updated: 2008/2/17 12:41, local time: 2023/6/6 15:46,
|©2023 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?|
<A HREF="http://www.massmind.org/techref/microchip/18c/funcptrs-ba.htm"> PIC 18C Microcontoller Program Flow Method for Function pointers (like in "C")</A>
|Did you find what you needed?|
Welcome to massmind.org!
Welcome to www.massmind.org!