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Section 2 CPU
Rev. 4.00 Sep. 14, 2005 Page 46 of 982
REJ09B0023-0400
Table 2.7
T Bit
This LSI's CPU
Description
Example of Other CPU
CMP/GE R1,R0
BT TRGET0
BF TRGET1
If R0
≥
R1, the T bit is set.
A branch is made to TRGET0
if R0
≥
R1, or to TRGET1 if R0 < R1.
CMP.W R1,R0
BGE TRGET0
BLT TRGET1
ADD #–1,R0
CMP/EQ
#0,R0
BT TRGET
The T bit is not set by ADD.
If R0 = 0, the T bit is set.
A branch is made if R0 = 0.
SUB.W #1,R0
BEQ
TRGET
Immediate Data: Byte immediate data is placed inside the instruction code. Word and longword
immediate data is not placed inside the instruction code, but in a table in memory. The table in
memory is referenced with an immediate data transfer instruction (MOV) using PC-relative
addressing mode with displacement.
Table 2.8
Immediate Data Referencing
Type
This LSI's CPU
Example of Other CPU
8-bit immediate
MOV
#H'12,R0 MOV.B
#H'12,R0
16-bit immediate
MOV.W
@(disp,PC),R0
........
.DATA.W H'1234
MOV.W #H'1234,R0
32-bit immediate
MOV.L
@(disp,PC),R0
........
.DATA.L H'12345678
MOV.L #H'12345678,R0
Note: Immediate data is referenced by @(disp,PC).
Absolute Addresses: When data is referenced by an absolute address, the absolute address value
is placed in a table in memory beforehand. Using the method whereby immediate data is loaded
when an instruction is executed, this value is transferred to a register and the data is referenced
using register indirect addressing mode.
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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Page 1036: ...SH7641 Hardware Manual...