$-2 ????

[chip15]

Hi,
the third line of the code I have not met her/it yet, that means?

movf TMRO, f
btfss STATUS,Z
goto $- 2

thx

by
chip15

[Melanie]

The $ represents the CURRENT Program Counter value in MPASM assembler. When this instruction is encountered, the MCU will jump forward (+) or back (-) the given number of memory locations.

goto $-2

Jump back two memory locations and continue execution from that point.

goto $+1

Continue execution from the NEXT memory location. This example is a neat way of saving codespace instead of using two sequential NOP statements.

[chip15]

THX Melanie. Smack!