SH7014 Datasheet, PDF (59/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

2. CPU
Table 2.5 Immediate Data Accessing
Classification SH7014/16/17 CPU
8-bit immediate MOV
#H'12,R0
16-bit immediate MOV.W
@(disp,PC),R0
.................
.DATA.W H'1234
32-bit immediate MOV.L
@(disp,PC),R0
.................
.DATA.L H'12345678
Note: @(disp, PC) accesses the immediate data.
Example of Conventional CPU
MOV.B #H'12,R0
MOV.W #H'1234,R0
MOV.L #H'12345678,R0
Absolute Address: When data is accessed by absolute address, the value already in the absolute
address is placed in the memory table. Loading the immediate data when the instruction is
executed transfers that value to the register and the data is accessed in the indirect register
addressing mode (table 2.6).
Table 2.6 Absolute Address Accessing
Classification
SH7014/16/17 CPU
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 pre-
existing displacement value is placed in the memory table. Loading the immediate data when the
instruction is executed transfers that value to the register and the data is accessed in the indirect
indexed register addressing mode (table 2.7).
Table 2.7 Displacement Accessing
Classification
SH7014/16/17 CPU
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.
Rev.5.00 Sep. 27, 2007 Page 25 of 716
REJ09B0398-0500