Move Address Source -> Destination
NAME
MOVEA -- Source -> Destination
SYNOPSIS
MOVEA <ea>,An
Size = (Word, Long)
FUNCTION
Move the contents of the source to the destination address
register. Word sized operands are sign extended to 32 bits
before the operation is done.
FORMAT
-----------------------------------------------------------------
|15 |14 |13 |12 |11 |10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|-------|-----------|---|---|---|-----------|-----------|
| 0 | 0 | SIZE | ADDRESS | 0 | 0 | 1 | MODE | REGISTER |
| | | | REGISTER | | | | | |
----------------------------------------=========================
source <ea>
REGISTER
"ADDRESS REGISTER" specifies the number of destination address
register.
Source <ea> specifies source operand, addressing modes allowed are:
--------------------------------- -------------------------------
|Addressing Mode|Mode| Register | |Addressing Mode|Mode|Register|
|-------------------------------| |-----------------------------|
| Dn |000 |N° reg. Dn| | Abs.W |111 | 000 |
|-------------------------------| |-----------------------------|
| An * |001 |N° reg. An| | Abs.L |111 | 001 |
|-------------------------------| |-----------------------------|
| (An) |010 |N° reg. An| | (d16,PC) |111 | 010 |
|-------------------------------| |-----------------------------|
| (An)+ |011 |N° reg. An| | (d8,PC,Xi) |111 | 011 |
|-------------------------------| |-----------------------------|
| -(An) |100 |N° reg. An| | (bd,PC,Xi) |111 | 011 |
|-------------------------------| |-----------------------------|
| (d16,An) |101 |N° reg. An| |([bd,PC,Xi],od)|111 | 011 |
|-------------------------------| |-----------------------------|
| (d8,An,Xi) |110 |N° reg. An| |([bd,PC],Xi,od)|111 | 011 |
|-------------------------------| |-----------------------------|
| (bd,An,Xi) |110 |N° reg. An| | #data |111 | 100 |
|-------------------------------| -------------------------------
|([bd,An,Xi]od) |110 |N° reg. An|
|-------------------------------|
|([bd,An],Xi,od)|110 |N° reg. An|
---------------------------------
* Word or Long only.
SIZE
11->Word, 32 bits of address register are altered by sign extension.
10->Long
RESULT
None.
SEE ALSO
MOVE LEA
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& witbrock@cs.cmu.edu