dsPIC30F
TABLE 10-8:
COMPARE/SKIP INSTRUCTIONS
Assembly Syntax
Description
Words
Cycles
BTSC
BTSC
BTSS
BTSS
CP
CP
CP
CP0
CP0
CPB
CPB
CPB
CPSEQ
CPSGT
CPSLT
CPSNE
f,#bit4
Ws,#bit4
f,#bit4
Ws,#bit4
f
Wb,#lit5
Wb,Ws
f
Ws
f
Wb,#lit5
Wb,Ws
Wb,Wn
Wb,Wn
Wb,Wn
Wb,Wn
Bit test f, skip if clear
Bit test Ws, skip if clear
Bit test f, skip if set
Bit test Ws, skip if set
Compare (f – WREG)
Compare (Wb – lit5)
Compare (Wb – Ws)
Compare (f – 0x0000)
Compare (Ws – 0x0000)
Compare with Borrow (f – WREG – C)
Compare with Borrow (Wb – lit5 – C)
Compare with Borrow (Wb – Ws – C)
Compare Wb with Wn, Skip if Equal (Wb = Wn)
Signed Compare Wb with Wn, Skip if Greater Than (Wb > Wn)
Signed Compare Wb with Wn, Skip if Less Than (Wb < Wn)
Signed Compare Wb with Wn, Skip if Not Equal (Wb ≠ Wn )
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1 (2 or 3)
1 (2 or 3)
1 (2 or 3)
1 (2 or 3)
1
1
1
1
1
1
1
1
1 (2 or 3)
1 (2 or 3)
1 (2 or 3)
1 (2 or 3)
Note 1:
2:
Bit positions are specified by bit4 (0:15) for word operations.
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.
DS70043F-page 40
? 2005 Microchip Technology Inc.
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