Data Move in Data Memory
DMOV
7-67
Assembly Language Instructions
Cycles for a Single DMOV Instruction
Program
Operand ROM DARAM SARAM External
DARAM 1 1 1 1+p
SARAM 1 1 1, 3
†
1+p
External
‡
2+2d 2+2d 2+2d 5+2d+p
†
If the operand and the code are in the same SARAM block
‡
If used on external memory, DMOV reads the specified memory location but performs no
operations.
Cycles for a Repeat (RPT) Execution of a DMOV Instruction
Program
Operand ROM DARAM SARAM External
DARAM n n n n+p
SARAM 2n–2 2n–2 2n–2, 2n+1
†
2n–2+p
External
‡
4n–2+2nd 4n–2+2nd 4n–2+2nd 4n+1+2nd+p
†
If the operand and the code are in the same SARAM block
‡
If used on external memory, DMOV reads the specified memory location but performs no
operations.
Example 1 DMOV DAT8 ;(DP = 6)
Before Instruction After Instruction
Data Memory Data Memory
308h 43h 308h 43h
Data Memory Data Memory
309h 2h 309h 43h
Example 2 DMOV *,AR1
Before Instruction After Instruction
ARP 0 ARP 1
AR0 30Ah AR0 30Ah
Data Memory Data Memory
30Ah 40h 30Ah 40h
Data Memory Data Memory
30Bh 41h 30Bh 40h
Cycles
