HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 89

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Addressing
Mode
Indexed GBR
indirect
PC-relative
with
displacement
PC-relative
Instruction
Format
@(R0, GBR)
@(disp:8, PC) Effective address is register PC with 8-bit
disp:8
Effective Address Calculation Method
Effective address is sum of register GBR and
R0 contents.
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 register PC with 8-bit
displacement disp added after being sign-
extended and multiplied by 2.
(zero-extended)
(sign-extended)
H'FFFFFFFC
GBR
disp
R0
2/4
disp
PC
PC
2
&
×
×
+
*
+
+
* : With longword operand
PC + disp × 2
H'FFFFFFFC
PC + disp × 2
GBR + R0
+ disp × 4
PC &
or
Rev. 1.00, 02/04, page 51 of 804
Calculation Formula
GBR + R0
Word: PC + disp × 2
Longword:
PC&H'FFFFFFFC
+ disp × 4
PC + disp × 2