參數(shù)資料
型號: μPD30100
廠商: NEC Corp.
英文描述: 64-bit RISC Microprosessor(64位 RISC 微處理器)
中文描述: 64位RISC Microprosessor(64位的RISC微處理器)
文件頁數(shù): 33/52頁
文件大?。?/td> 365K
代理商: ΜPD30100
33
μ
PD30100
6. INSTRUCTION SET
The V
R
4100’s instructions consist of 1 word (32 bits) located on a word boundary. The instruction format has
three types as shown in Figure 7-1. Decoding of instructions is simplified by having only three format types.
Complicated and infrequently used operations and addressing modes are realized by compilers.
6.1 Instruction Format
V
R
4100’s instruction formats are as shown below.
Figure 6-1. CPU Instruction Formats
op
6-bit instruction code
rs
5-bit source register specifier
rt
5-bit target (source/destination) register, or branch condition
immediate
16-bit immediate value, branch displacement, or address displacement
target
26-bit unconditional branch target address
rd
5-bit destination register specifier
sa
5-bit shift quantity
funct
6-bit function field
6.2 List of CPU Instruction Set
The V
R
4100’s CPU instructions are classified into three categories: the instruction set (ISA: Instruction Set
Architecture) common to all VR series processors, the instruction set (extended ISA) executed on the V
R
4000
series, and the system control coprocessor instruction set. The instruction set is listed below.
26 25
31
21 20
16 15
0
26
31
0
26 25
31
21 20
16 15
0
11 10
6
5
op
rs
rt
rd
sa
funct
op
op
rs
rt
immediate
target
25
I-type (Immediate format)
J-type (Jump format)
R-type (Register format)
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