Datasheet

dsPIC30F

TABLE 10-8: COMPARE/SKIP INSTRUCTIONS

Assembly Syntax Description Words Cycles

BTSC f,#bit4 Bit test f, skip if clear 1 1 (2 or 3)

BTSC Ws,#bit4 Bit test Ws, skip if clear 1 1 (2 or 3)

BTSS f,#bit4 Bit test f, skip if set 1 1 (2 or 3)

BTSS Ws,#bit4 Bit test Ws, skip if set 1 1 (2 or 3)

CP f Compare (f – WREG) 1 1

CP Wb,#lit5 Compare (Wb – lit5) 1 1

CP Wb,Ws Compare (Wb – Ws) 1 1

CP0 f Compare (f – 0x0000) 1 1

CP0 Ws Compare (Ws – 0x0000) 1 1

CPB f Compare with Borrow (f – WREG – C

)11

CPB Wb,#lit5 Compare with Borrow (Wb – lit5 – C

)11

CPB Wb,Ws Compare with Borrow (Wb – Ws – C

)11

CPSEQ Wb,Wn Compare Wb with Wn, Skip if Equal (Wb = Wn) 1 1 (2 or 3)

CPSGT Wb,Wn Signed Compare Wb with Wn, Skip if Greater Than (Wb > Wn) 1 1 (2 or 3)

CPSLT Wb,Wn Signed Compare Wb with Wn, Skip if Less Than (Wb < Wn) 1 1 (2 or 3)

CPSNE Wb,Wn Signed Compare Wb with Wn, Skip if Not Equal (Wb ≠ Wn) 11 (2 or 3)

Note 1: Bit positions are specified by bit4 (0:15) for word operations.

2: Conditional skip instructions execute in 1 cycle if the skip is not taken, 2 cycles if the skip is taken over a

one-word instruction and 3 cycles if the skip is taken over a two-word instruction.