DSPIC33FJXXXGPX06_09 Datasheet, PDF (249/322 Pages) Microchip Technology – High-Performance, 16-Bit Digital Signal Controllers

dsPIC33FJXXXGPX06/X08/X10
TABLE 23-1: SYMBOLS USED IN OPCODE DESCRIPTIONS (CONTINUED)
Field
Description
Wm*Wm
Wm*Wn
Wn
Wnd
Wns
WREG
Ws
Wso
Wx
Wxd
Wy
Wyd
Multiplicand and Multiplier working register pair for Square instructions ∈
{W4 * W4,W5 * W5,W6 * W6,W7 * W7}
Multiplicand and Multiplier working register pair for DSP instructions ∈
{W4 * W5,W4 * W6,W4 * W7,W5 * W6,W5 * W7,W6 * W7}
One of 16 working registers ∈ {W0..W15}
One of 16 destination working registers ∈ {W0...W15}
One of 16 source working registers ∈ {W0...W15}
W0 (working register used in file register instructions)
Source W register ∈ { Ws, [Ws], [Ws++], [Ws--], [++Ws], [--Ws] }
Source W register ∈
{ Wns, [Wns], [Wns++], [Wns--], [++Wns], [--Wns], [Wns+Wb] }
X data space prefetch address register for DSP instructions
∈ {[W8]+ = 6, [W8]+ = 4, [W8]+ = 2, [W8], [W8]- = 6, [W8]- = 4, [W8]- = 2,
[W9]+ = 6, [W9]+ = 4, [W9]+ = 2, [W9], [W9]- = 6, [W9]- = 4, [W9]- = 2,
[W9 + W12], none}
X data space prefetch destination register for DSP instructions ∈ {W4...W7}
Y data space prefetch address register for DSP instructions
∈ {[W10]+ = 6, [W10]+ = 4, [W10]+ = 2, [W10], [W10]- = 6, [W10]- = 4, [W10]- = 2,
[W11]+ = 6, [W11]+ = 4, [W11]+ = 2, [W11], [W11]- = 6, [W11]- = 4, [W11]- = 2,
[W11 + W12], none}
Y data space prefetch destination register for DSP instructions ∈ {W4...W7}
© 2009 Microchip Technology Inc.
DS70286C-page 247