r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 77

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

3.2
Addressing modes and effective address calculation methods are shown in table 3.2. When a
location in virtual memory space is accessed (AT in MMUCR = 1), the effective address is
translated into a physical memory address. If multiple virtual memory space systems are selected
(SV in MMUCR = 0), the least significant bit of PTEH is also referenced as the access ASID. For
details, see section 7, Memory Management Unit (MMU).
Table 3.2
Addressing
Mode
Register
direct
Register
indirect
Register
indirect
with post-
increment
Addressing Modes
Addressing Modes and Effective Addresses
Instruction
Format
Rn
@Rn
@Rn+
Effective Address Calculation Method
Effective address is register Rn.
(Operand is register Rn contents.)
Effective address is register Rn contents.
Effective address is register Rn contents.
A constant is added to Rn after instruction
execution: 1 for a byte operand, 2 for a word
operand, 4 for a longword operand, 8 for a
quadword operand.
1/2/4
Rn
Rn
Rn + 1/2/4
+
Rev.1.00 Jan. 10, 2008 Page 47 of 1658
Rn
Rn
Calculation
Formula
—
Rn → EA
(EA: effective
address)
Rn → EA
After instruction
execution
Byte:
Rn + 1 → Rn
Word:
Rn + 2 → Rn
Longword:
Rn + 4 → Rn
Quadword:
Rn + 8 → Rn
REJ09B0261-0100
3. Instruction Set