HD6437101 RENESAS [Renesas Technology Corp], HD6437101 Datasheet - Page 58

• Manufacturer Part Number: HD6437101
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 2 CPU
Rev.1.00 Sep. 18, 2008 Page 24 of 522
REJ09B0069-0100
Addressing
Mode
Indirect indexed
register
addressing
Indirect GBR
addressing with
displacement
Indirect indexed
GBR addressing
Indirect PC
addressing with
displacement
Instruction
Format
@(R0, Rn) The effective address is the sum of Rn and R0.
@(disp:8,
GBR)
@(R0,
GBR)
@(disp:8,
PC)
Effective Address Calculation
The effective address is the sum of GBR value and
an 8-bit displacement (disp). The value of disp is
zero-extended, and remains unchanged for a byte
operation, is doubled for a word operation, and is
quadrupled for a longword operation.
The effective address is the sum of GBR value and
R0.
The effective address is the sum of PC value and
an 8-bit displacement (disp). The value of disp is
zero-extended, and is doubled for a word
operation, and quadrupled for a longword
operation. For a longword operation, the lowest
two bits of the PC value are masked.
(zero-extended)
(zero-extended)
H'FFFFFFFC
GBR
Rn
R0
R0
disp
1/2/4
GBR
disp
PC
2/4
&
×
×
+
+
(for longword)
+
+
PC & H'FFFFFFFC
GBR + R0
+ disp × 1/2/4
PC + disp × 2
Rn + R0
+ disp × 4
GBR
or
Equation
Rn + R0
Byte:
GBR + disp
Word:
GBR + disp ×
2
Longword:
GBR + disp ×
4
GBR + R0
Word:
PC + disp × 2
Longword:
PC &
H'FFFFFFFC
+ disp × 4