pic microcontroller 18f instruction set
decfsz
btfsc status zpic instruction set
btg instruction in pic
bra instruction in pic
btsc assembly
retfie instruction

Now let's look at the other bit oriented instructions, which are the Bit-test-file, skip- if-clear (BTFSC) and the Bit test-file, skip-if-set (BTFSS) instructions. 23 Nov 2012 I tried but I actually didn't really understand how BTFSC and BTFSS instructions work. The manual syntax and description are: BTFSC f,b The BTFSS instruction will skip the following instruction if the bitvar bit of because as you acknowledge, it won't work in a running PIC, so is BTFSS. < Previous instruction: BTFSC | Instruction index | Next instruction: BTG >. BTFSS title= < Previous instruction: BTFSC | Instruction index | Next BTFSC. < Previous instruction: BSF | Instruction index | Next instruction: BTFSS >. BTFSC title= < Previous instruction: BSF | Instruction index | Next instruction: BTFSC f , b, If the bit 'b' in file register 'f' is 0, then the following instructions is not executed and a 'NOP' is executed instead. If the bit is 1, the instructions is5 Jan 2009 And how is it different from btfss? I would download the spec sheet for my microcontroller and take a close look at the instruction set. Though this tutorial is based on the PIC micro, the concepts are true for all others. Logic one (1) of the PIC is able to perform operations AND, OR, EX-OR, inverting Conditional jumps are executed by two instructions: BTFSC and BTFSS. 12 Jan 2007 I seem to having endless problems with this simple instruction. If I have the following code: movlw b'00000000' btfsc W, 0 goto Intrusion goto PIC's are designed for low level operations, and thus have bit-wise operators