HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 62

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 2 CPU
Rev. 6.00 Jun. 12, 2007 Page 30 of 610
REJ09B0131-0600
Addressing
Mode
Index GBR
indirect
PC relative with
displacement
PC relative
Instruction
Format
@(R0,
GBR)
@(disp:8,
PC)
disp:8
disp:12
Effective Address Calculation Method
Effective address is sum of register GBR and
R0 contents.
Effective address is PC with 8-bit displacement
disp added. After disp is zero-extended, it is
multiplied by 2 (word) or 4 (longword), according
to the operand size. With a longword operand,
the lower 2 bits of PC are masked.
Effective address is PC with 8-bit displacement
disp added after being sign-extended and
multiplied by 2.
Effective address is PC with 12-bit displacement
disp added after being sign-extended and
multiplied by 2.
disp
(sign-extended)
(sign-extended)
H'FFFFFFFC
(zero-extended)
GBR
disp
PC
disp
R0
PC
2
2
PC
2/4
&
×
×
×
+
+
*
+
+
*With longword operand
GBR
PC + disp × 2
H'FFFFFFFC
+ disp × 4
PC + disp × 2
PC + disp × 2
PC&
+
or
R0
Calculation
Formula
GBR + R0
Word: PC + disp
× 2
Longword:
PC&H'FFFFFFFC
+ disp × 4
PC + disp × 2
PC + disp × 2