| Mode |
Format |
Notes |
Example
|
| Direct register addressing |
Rn |
The effective address is register Rn. (The operand is the contents
of register Rn.) |
mov r0,r1
|
| Indirect register addressing |
@Rn |
The effective address is the content of register Rn |
mov.l @r5,r0
|
| Post-increment indirect register addressing |
@Rn+ |
The effective address is the content of register Rn.
Rn is incremented by the amount loaded (B/W/L = 1/2/4) |
mov.l @r5+,r1
|
| Pre-decrement indirect register addressing |
@–Rn |
First, Rn is decremented by the amount loaded (B/W/L = 1/2/4)
The effective address is the value obtained by subtracting a
constant from Rn. |
mov.b r3,@-r5
|
| Indirect register addressing with displacement |
@(disp:4,Rn) |
The effective address is Rn plus a 4-bit displacement (disp). The
value of disp is zero- extended, and remains the same for a byte
operation, is doubled for a word operation, or is quadrupled for a
longword operation. |
mov.l @(4,r5),r2
|
| Indirect indexed register addressing |
@(R0, Rn) |
The effective address is the Rn value plus R0 (RN+R0) |
mov r0,@(r0,r5)
|
| Indirect GBR addressing with displacement |
@(disp:8,GBR) |
The effective address is the GBR value plus an 8-bit displacement
(disp). The value of disp is zero-extended, and remains the same for
a byte operation, is doubled for a word operation, or is quadrupled
for a longword operation. |
mov.l @(8,gbr),r0
|
| Indirect indexed GBR addressing |
@(R0,GBR) |
The effective address is the GBR value plus R0. (GBR + R0) |
and.b #1,@(r0,gbr)
|
PC relative addressing
with displacement |
@(disp:8,PC) |
The effective address is the PC value plus an 8-bit displacement
(disp). The value of disp is zero-
extended, and disp is doubled for a word operation, or is quadrupled
for a longword operation. For a longword operation, the lowest two
bits of the PC are masked. |
mov.l @(4,pc),r1
|
| PC relative addressing (8 bit) |
disp:8 |
The effective address is the PC value sign-extended with an 8-bit
displacement (disp), doubled, and added to the PC. (PC + disp * 2) |
bt SkipD
|
| PC relative addressing (12 bit) |
disp:12 |
The effective address is the PC value sign-extended with a 12-bit
displacement (disp), doubled, and added to the PC. (PC + disp * 2) |
bsr ShowB
|
| PC relative addressing (Register) |
Rn |
The effective address is the register PC plus Rn. (PC + Rn) |
bsrf r0
|
| Immediate addressing |
#imm:8 |
Immediate is zero extended for TST,AND,OR and XOR
Immediate is sign extended for MOV, ADD and CMP/EQ
Immediate is zero extended and quadrupled for TRAPA |
mov #-100,r0
|
