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): 38/52頁
文件大?。?/td> 365K
代理商: ΜPD30100
38
μ
PD30100
Table 6-3. System Control Coprocessor (CP0) Instruction
6.3 Instruction Execution Times
The V
R
4100 in principle executes one instruction in one cycle. Some instructions, however, requires two or
more cycles to execute.
(1) Data loaded by the load instruction cannot be used in the delay slot. If an instruction that uses the loaded data
is located in the delay slot, the pipeline is stalled.
If a store instruction is executed followed by a load instruction or MFC0, the pipeline is stalled for the duration
of the delay slot.
If the condition of a branch instruction is satisfied or if a jump instruction is executed, the instruction at the
destination address is executed after the delay slot.
Table 6-4. Number of Delay Slot Cycles
Instruction Category
Required Number of Cycles (PCycle)
Load
1
Store
1
Jump
1
Branch
1
CACHE
base
sub
offset
COP0
sub
rt
rd
0
COP0
CO
funct
System control coprocessor instruction (1)
MFC0
MTC0
DMFC0
DMTC0
System control coprocessor instruction (2)
TLBR
TLBWI
TLBWR
TLBP
ERET
System control coprocessor instruction (3)
STANDBY
SUSPEND
HIBERNATE
System control coprocessor instruction (4)
CACHE
Instructions
Description
Format
Move From Coprocessor 0
Move To Coprocessor 0
Doubleword Move From Coprocessor 0
Doubleword Move To Coprocessor 0
Read Indexed TLB Entry
Write Indexed TLB Entry
Write Random TLB Entry
Probe TLB For Matching Entry
Exception Return
Standby
Suspend
Hibernate
Cache Operation
COP0
CO
funct
MFC0
MTC0
DMFC0
DMTC0
TLBR
TLBWI
TLBWR
TLBP
ERET
STANDBY
SUSPEND
HIBERNATE
CACHE
rt, rd
rt, rd
rt, rd
rt, rd
sub, offset (base)
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