hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 74

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 2 CPU
2.4
2.4.1
The H8/300L CPU supports the eight addressing modes listed in table 2.1. Each instruction uses a
subset of these addressing modes.
Table 2.1
Register Direct—Rn: The register field of the instruction specifies an 8- or 16-bit general register
containing the operand.
Only the MOV.W, ADD.W, SUB.W, CMP.W, ADDS, SUBS, MULXU (8 bits × 8 bits), and
DIVXU (16 bits ÷ 8 bits) instructions have 16-bit operands.
Register Indirect—@Rn: The register field of the instruction specifies a 16-bit general register
containing the address of the operand in memory.
Register Indirect with Displacement—@(d:16, Rn): The instruction has a second word (bytes 3
and 4) containing a displacement which is added to the contents of the specified general register to
obtain the operand address in memory.
This mode is used only in MOV instructions. For the MOV.W instruction, the resulting address
must be even.
Rev. 7.00 Mar 10, 2005 page 32 of 652
REJ09B0042-0700
No.
1
2
3
4
5
6
7
8
Addressing Modes
Addressing Modes
Addressing Modes
Address Modes
Register direct
Register indirect
Register indirect with displacement
Register indirect with post-increment
Register indirect with pre-decrement
Absolute address
Immediate
Program-counter relative
Memory indirect
Symbol
Rn
@Rn
@(d:16, Rn)
@Rn+
@–Rn
@aa:8 or @aa:16
#xx:8 or #xx:16
@(d:8, PC)
@@aa:8