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4-73Assembly Language Instructions
Table 4–45. Auto Increment and Decrement
Operation next A b9 b8
No modification 0 0
Auto increment ++A 0 1
Auto Decrement ––A 1 0
Table 4–46. Addressing Mode Bits and adrs Field Description
Strin
g†
Addressing Mode Encoding
Relative
Addressing
Clocks Words
String†
Repeat
Operation
{adrs}
7 6 5 4 3 2 1 0
Addressing
Modes
clk w
Operation
Clocks
am Rx (x = 0 … 7) pm
Direct 2 2 n
R
+4 *dma16 0 0 0 x 0 0
Short relative 1 1 n
R
+2 *R6 + offset7 1 offset7
Relative to R5 1 1 n
R
+2 *Rx + R5 0 1 0 Rx 0 0
Long relative 2 2 n
R
+4 *Rx + offset16 0 0 1 Rx 0 0
*Rx 0 0
Indirect
1
1
n
R
+2
*Rx++ 0 1
Indirect
1
1
n
R
+2
*Rx––
0 1 1
Rx
1 0
*Rx++R5 1 1
†
Replace n
R
with n
S
for string operation.
Note: dma16 and offset16 is the second word.
Table 4–47. Flag Addressing Syntax and BIts
Repeat
{flagadrs}
flag addressing mode encoding, flagadrs
Flag
Addressing
Clocks Words
Repeat
Operation
†
Syntax
6 5 4 3 2 1 0
Addressing
Modes
clk w
clk
flag address bits g/r
Global 1 1 n
R
+2 *dma6 dma6 0
Relative 1 1 n
R
+2 *R6+offset6 offset6 1
†
n
R
is RPT instruction argument