I'm trying to clear RAM (to 00 hex) in Bank 0, registers 00 -> 7F only. But the program only clears up to register 48 hex. I must be doing something wrong. Can anyone advise please? Thanks, Simon.
; ; Clear RAM 00 -> 7FH ; Program only uses BANK0 registers ; CLRF BSR ;Ensure working in Bank0. LFSR FSR0,0x000 ;Initiate to RAM loc. 0 BUMP_RAM CLRF POSTINC0 ;Clear INDF & increment. BTFSS FSR0H,0 ;All done in Bank0? GOTO BUMP_RAM
a) CLRF BSR is unnecessary b) Simulating in MPLAB the above code clears up to 0xFF, as expected. Rocky
Removed CLRF BSR, re-compiled and run. Still only clears up to 48H inclusive! Now I'm really confused.
Simon
Replied rather hastily. Found the problem, thanks Rocky. Simon
What was the problem?
I had the wrong Watch window open. Whoops.
That'll do it every time!
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