[destination] ← <literal> + [destination]
ADDQ #<data>,<ea>ADDQ #6,D3Size byte, word, longword
Add the immediate data to the contents of the destination operand. The immediate data must be in the range 1 to 8. Word and longword operations on address registers do not affect condition codes. Note that a word operation on an address register affects all bits of the register.
ADDQ is used to add a small constant to the operand at the effective address. Some assemblers permit you to write ADD and then choose ADDQ automatically if the constant is in the range 1 to 8.
| X | N | Z | V | C |
|---|---|---|---|---|
| * | * | * | * | * |
Note that the CCR is not updated if the destination operand is an address register.
| Dn | An | (An) | (An)+ | ‑(An) | (d,An) | (d,An,Xi) | ABS.W | ABS.L | (d,PC) | (d,PC,Xn) | imm |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
From MOTOROLA M68000 FAMILY Programmer's reference manual. Copyright 1992 by Motorola Inc./NXP. Adapted with permission.