User manual

DMOV Data Move in Data Memory
7-66
Syntax DMOV dma Direct addressing
DMOV
ind [, AR n ] Indirect addressing
Operands dma: 7 LSBs of the data-memory address
n: Value from 0 to 7 designating the next auxiliary register
ind: Select one of the following seven options:
* *+ *– *0+ *0– *BR0+ *BR0–
DMOV
dma
1514131211109876543210
0
11101110 dma
DMOV ind [, AR n ]
1514131211109876543210
0
11101111 ARU N NAR
Note: ARU, N, and NAR are defined in Section 6.3, Indirect Addressing Mode (page 6-9).
Execution Increment PC, then ...
(data-memory address) → data-memory address + 1
Status Bits
Affected by
CNF
Description The contents of the specified data-memory address are copied into the con-
tents of the next higher address. When data is copied from the addressed loca-
tion to the next higher location, the contents of the addressed location remain
unaltered.
DMOV works only within on-chip data RAM blocks. It works within any confi-
gurable RAM block if that block is configured as data memory. In addition, the
data move function is continuous across block boundaries. The data move
function cannot be performed on external data memory. If the instruction spec-
ifies an external memory address, DMOV reads the specified memory location
but performs
no operations.
The data move function is useful in implementing the z
–1
delay encountered
in digital signal processing. The DMOV function is a subtask of the LTD and
MACD instructions (see the LTD and MACD instructions for more information).
Words 1
Opcode