hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 35

• Manufacturer Part Number: hd66100
• Description: H8/3867 Series
• Manufacturer: Renesas Electronics Corporation.

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
No.
1
2
3
4
5
6
7
8
1. Register Direct—Rn: The register field of the instruction specifies an 8- or 16-bit general
2. Register Indirect—@Rn: The register field of the instruction specifies a 16-bit general
3. Register Indirect with Displacement—@(d:16, Rn): The instruction has a second word
20
register containing the operand.
Only the MOV.W, ADD.W, SUB.W, CMP.W, ADDS, SUBS, MULXU (8 bits
DIVXU (16 bits ÷ 8 bits) instructions have 16-bit operands.
register containing the address of the operand in memory.
(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.
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
8 bits), and