h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 81

• Manufacturer Part Number: h8s-2649
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

2.7
The H8S/2600 CPU supports the eight addressing modes listed in table 2.11. Each instruction uses
a subset of these addressing modes. Arithmetic and logic instructions can use the register direct
and immediate modes. Data transfer instructions can use all addressing modes except program-
counter relative and memory indirect. Bit manipulation instructions use register direct, register
indirect, or the absolute addressing mode to specify an operand, and register direct (BSET, BCLR,
BNOT, and BTST instructions) or immediate (3-bit) addressing mode to specify a bit number in
the operand.
Table 2.11 Addressing Modes
2.7.1
The register field of the instruction specifies an 8-, 16-, or 32-bit general register containing the
operand. R0H to R7H and R0L to R7L can be specified as 8-bit registers. R0 to R7 and E0 to E7
can be specified as 16-bit registers. ER0 to ER7 can be specified as 32-bit registers.
2.7.2
The register field of the instruction code specifies an address register (ERn) which contains the
address of the operand on memory. If the address is a program instruction address, the lower 24
bits are valid and the upper 8 bits are all assumed to be 0 (H'00).
No.
1
2
3
4
5
6
7
8
Addressing Modes and Effective Address Calculation
Register DirectRn
Register Indirect@ERn
Addressing Mode
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
@ERn
@(d:16,ERn)/@(d:32,ERn)
@ERn+
@–ERn
@aa:8/@aa:16/@aa:24/@aa:32
#xx:8/#xx:16/#xx:32
@(d:8,PC)/@(d:16,PC)
@@aa:8
Rev. 2.00 Dec. 05, 2005 Page 43 of 724
REJ09B0200-0200
Section 2 CPU