Lea load effective address lea, Caution – Motorola DSP96002 User Manual
Page 400
A - 212
DSP96002 USER’S MANUAL
MOTOROLA
LEA
Load Effective Address
LEA
Operation:
ea
→
D
Rn+xxxx
→
D
Assembler Syntax:
LEA ea,D
LEA (Rn+displacement),D
Description:
The address calculation specified is executed and the resulting effective address is stored in the destina-
tion register. The source address registers are not affected. Post-update and Long Displacement address
register indirect addressing modes may be used. Note that if D is SSH, the SP will be preincremented by
one.
CAUTION
See restrictions in Section A.10.6 concerning Rn, Mn, and Nn registers as a
destination.
CCR Condition Codes:
For destination operand SR:
C
- Set according to bit 0 of the source operand.
V
- Set according to bit 1 of the source operand.
Z
- Set according to bit 2 of the source operand.
N
- Set according to bit 3 of the source operand.
I
- Set according to bit 4 of the source operand.
LR
- Set according to bit 5 of the source operand.
–
R
- Set according to bit 6 of the source operand.
A
- Set according to bit 7 of the source operand.
For destination operands other than SR:
C
- Not affected.
V
- Not affected.
Z
- Not affected.
N
- Not affected.
I
- Not affected.
LR
- Not affected.
–
R
- Not affected.
A
- Not affected.