Section 3 Instruction Set
Rev. 1.00 Oct. 01, 2007 Page 57 of 1956
REJ09B0256-0100
Section 3 Instruction Set
This LSI's instruction set is implemented with 16-bit fixed-length instructions. This LSI can use
byte (8-bit), word (16-bit), longword (32-bit), and quadword (64-bit) data sizes for memory
access. Single-precision floating-point data (32 bits) can be moved to and from memory using
longword or quadword size. Double-precision floating-point data (64 bits) can be moved to and
from memory using longword size. When this LSI moves byte-size or word-size data from
memory to a register, the data is sign-extended.
3.1 Execution
Environment
PC:
At the start of instruction execution, the PC indicates the address of the instruction itself.
Load-Store Architecture:
This LSI has a load-store architecture in which operations are basically
executed using registers. Except for bit-manipulation operations such as logical AND that are
executed directly in memory, operands in an operation that requires memory access are loaded
into registers and the operation is executed between the registers.
Delayed Branches:
Except for the two branch instructions BF and BT, this LSI's branch
instructions and RTE are delayed branches. In a delayed branch, the instruction following the
branch is executed before the branch destination instruction.
Delay Slot:
This execution slot following a delayed branch is called a delay slot. For example, the
BRA execution sequence is as follows:
Table 3.1
Execution Order of Delayed Branch Instructions
Instructions Execution
Order
BRA
TARGET
(Delayed branch instruction)
BRA
ADD
(Delay
slot)
↓
:
ADD
:
↓
TARGET target-inst
(Branch
destination instruction)
target-inst
A slot illegal instruction exception may occur when a specific instruction is executed in a delay
slot. For details, see section 5, Exception Handling. The instruction following BF/S or BT/S for
which the branch is not taken is also a delay slot instruction.
Содержание SH7763
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Страница 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Страница 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Страница 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Страница 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
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Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Страница 1060: ...Section 23 Gigabit Ethernet Controller GETHER Rev 1 00 Oct 01 2007 Page 994 of 1956 REJ09B0256 0100 ...
Страница 1062: ...Section 24 IP Security Accelerator SECURITY Rev 1 00 Oct 01 2007 Page 996 of 1956 REJ09B0256 0100 ...
Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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