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Instruction Syntax and Addressing Modes
4-10
Table 4–3. Rx Bit Description
R
x
Operation
0 0 0 R0
0 0 1 R1
0 1 0 R2
0 1 1 R3
1 0 0 R4 or LOOP
1 0 1 R5 or INDEX
1 1 0 R6 or PAGE
1 1 1 R7 or STACK
Table 4–4. Addressing Mode Bits and {adrs} Field Description
Relative
Repeat
addressing mode encoding,
adrs
Relative
Addressing
Modes
Clocks
clk
Words
w
Repeat
Operation
‡
clk
{
adrs
}
7 6 5 4 3 2 1 0
M
o
d
es
clk
w
c
lk
am
R
x
(x = 0 … 7)
pm
Direct
†
2 2 n
R
+4 *
dma16
0 0 0 R
x
0 0
Short relative 1 1 n
R
+2 *R6
+
offset7
1 offset7
Relative to R5 1 1 n
R
+2 *R
x
+ R5 0 1 0 R
x
0 0
Long relative
†
2 2 n
R
+4 *R
x
+
offset16
0 0 1 R
x
0 0
Indirect 1 1 n
R
+2 *R
x
0 0
*R
x
++
0
1
1
R
x
0 1
*R
x
––
0
1
1
R
x
1 0
*R
x
++R5 1 1
†
=
dma16
and
offset16
is the second word
‡
n
R
is RPT instruction argument