h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 106
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h8s-2161b
Manufacturer Part Number
h8s-2161b
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2161B.pdf
(845 pages)
- Current page: 106 of 845
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Section 2 CPU
Table 2.11 Addressing Modes
No.
1
2
3
4
5
6
7
8
2.7.1
The register field of the instruction code specifies an 8-, 16-, or 32-bit general register which
contains 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 a memory operand. 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).
2.7.3
A 16-bit or 32-bit displacement contained in the instruction code is added to an address register
(ERn) specified by the register field of the instruction, and the sum gives the address of a memory
operand. A 16-bit displacement is sign-extended when added.
2.7.4
Register Indirect with Post-Increment—@ERn+: The register field of the instruction code
specifies an address register (ERn) which contains the address of a memory operand. After the
operand is accessed, 1, 2, or 4 is added to the address register contents and the sum is stored in the
address register. The value added is 1 for byte access, 2 for word access, and 4 for longword
access. For word or longword transfer instructions, the register value should be even.
Rev. 3.00 Mar 21, 2006 page 52 of 788
REJ09B0300-0300
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
Register Direct—Rn
Register Indirect—@ERn
Register Indirect with Displacement—@(d:16, ERn) or @(d:32, ERn)
Register Indirect with Post-Increment or Pre-Decrement—@ERn+ or @–ERn
Symbol
@(d:16,ERn)/@(d:32,ERn)
@aa:8/@aa:16/@aa:24/@aa:32
@(d:8,PC)/@(d:16,PC)
Rn
@ERn
@ERn+
@–ERn
#xx:8/#xx:16/#xx:32
@@aa:8
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