SH7727 Datasheet, PDF (117/1109 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7700 Series

Section 2 CPU
Addressing Instruction
Mode
Format
Register
@(disp:4, Rn)
indirect with
displacement
Effective Address Calculation Method
Effective address is register Rn contents with
4-bit displacement disp added. After disp is
zero-extended, it is multiplied by 1 (byte), 2
(word), or 4 (longword), according to the
operand size.
Rn
disp
+
(zero-extended)
×
Rn
+ disp × 1/2/4
Calculation
Formula
Byte:
Rn + disp
Word:
Rn + disp × 2
Longword:
Rn + disp × 4
Indexed
register
indirect
@(R0, Rn)
1/2/4
Effective address is sum of register Rn and R0
contents.
Rn
Rn + R0
+
Rn + R0
GBR indirect @(disp:8,
with
GBR)
displacement
R0
Effective address is register GBR contents with
8-bit displacement disp added. After disp is
zero-extended, it is multiplied by 1 (byte), 2
(word), or 4 (longword), according to the
operand size.
GBR
disp
+
(zero-extended)
×
GBR
+ disp × 1/2/4
Byte:
GBR + disp
Word:
GBR + disp × 2
Longword:
GBR + disp × 4
1/2/4
Rev. 5.00 Dec 12, 2005 page 45 of 1034
REJ09B0254-0500