參數(shù)資料
型號: Alpha 21164
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: Alpha Microprocessor(64位微處理器)
中文描述: 阿爾法微處理器(64位微處理器)
文件頁數(shù): 55/115頁
文件大?。?/td> 846K
代理商: ALPHA 21164
Internal Processor Registers
55
IDU, MTU, Dcache, and PALtemp IPRs
8 Internal Processor Registers
The tables in this section provide a summary of the 21164 implementation-specific
internal processor registers (IPRs). For detailed register information, see the
Alpha 21164 Microprocessor Hardware Reference Manual
. For more information
about the architecturally specified IPRs, see the
Alpha Architecture
Reference Manual
.
8.1 IDU, MTU, Dcache, and PALtemp IPRs
Table 10 lists the IDU, MTU, data cache (Dcache), and PALtemp IPRs. These IPRs
are accessible to PALcode by means of the HW_MTPR and HW_MFPR instruc-
tions, using the IPR index. The IDU holds a bank of 24 PALtemp registers.
Table 10 IDU, MTU, Dcache, and PALtemp IPRs
(Sheet 1 of 4)
IPR Mnemonic
Register Name
Access
Index
16
IDU IPRs
ISR
Interrupt Summary
R
100
ITB_TAG
Istream translation buffer tag
W
101
ITB_PTE
Instruction translation buffer page
table entry
R/W
102
ITB_ASN
Instruction translation buffer address
space number
R/W
103
ITB_PTE_TEMP
Instruction translation buffer page
table entry temporary
R
104
ITB_IA
Instruction translation buffer invali-
date all
W
105
ITB_IAP
Instruction translation buffer invali-
date all process
W
106
ITB_IS
Instruction translation buffer invali-
date single
W
107
SIRR
Software interrupt request
R/W
108
ASTRR
Asynchronous system trap request
R/W
109
ASTER
Asynchronous system trap enable
R/W
10A
EXC_ADDR
Exception address
R/W
10B
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