SH7108 Datasheet, PDF (56/560 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 2 CPU
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
register addressing mode.
Table 2.6 Absolute Address Accessing
Classification
CPU of This LSI
Absolute address MOV.L
@(disp,PC),R1
MOV.B
@R1,R0
..................
.DATA.L H'12345678
Note: @(disp,PC) accesses the immediate data.
Example of Conventional CPU
MOV.B @H'12345678,R0
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
register by loading the immediate data during the execution of the instruction, and the data is
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 @(H'1234,R1),R2
MOV.W
@(R0,R1),R2
..................
.DATA.W H'1234
Note: @(disp,PC) accesses the immediate data.
2.4.2 Addressing Modes
Table 2.8 describes addressing modes and effective address calculation.
Rev.1.00 Sep. 18, 2008 Page 22 of 522
REJ09B0069-0100