SH7101 datasheet(56/560 Pages) RENESAS

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Section 2 CPU

Rev.1.00 Sep. 18, 2008 Page 22 of 522

REJ09B0069-0100

Absolute Address: When data is accessed by absolute address, the value in the absolute address is

placed in the memory table in advance. That value is transferred to the register by loading the

immediate data during the execution of the instruction, and the data is accessed in the indirect

Table 2.6

Absolute Address Accessing

Classification

CPU of This LSI

Example of Conventional CPU

Absolute address

MOV.L

@(disp,PC),R1

MOV.B

@R1,R0

..................

.DATA.L

H'12345678

MOV.B

@H'12345678,R0

Note:

@(disp,PC) accesses the immediate data.

16-Bit/32-Bit Displacement: When data is accessed by 16-bit or 32-bit displacement, the

displacement value is placed in the memory table in advance. That value is transferred to the

accessed in the indirect indexed register addressing mode.

Table 2.7

Displacement Accessing

Classification

CPU of This LSI

Example of Conventional CPU

16-bit displacement

MOV.W

@(disp,PC),R0

MOV.W

@(R0,R1),R2

..................

.DATA.W

H'1234

MOV.W

@(H'1234,R1),R2

Note:

@(disp,PC) accesses the immediate data.

2.4.2

Addressing Modes

Table 2.8 describes addressing modes and effective address calculation.

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