參數(shù)資料
型號(hào): Intel387 sx
廠商: Intel Corp.
英文描述: SX Math Coprocessor(32位數(shù)學(xué)協(xié)處理器)
中文描述: 山西數(shù)學(xué)協(xié)處理器(32位數(shù)學(xué)協(xié)處理器)
文件頁(yè)數(shù): 17/47頁(yè)
文件大?。?/td> 443K
代理商: INTEL387 SX
Intel387
TM
SX MATH COPROCESSOR
32-BIT PROTECTED MODE FORMAT
31
23
15
7
0
RESERVED
CONTROL WORD
0
RESERVED
STATUS WORD
4
RESERVED
TAG WORD
8
IP OFFSET
C
00000
OPCODE
10..0
CS SELECTOR
10
DATA OPERAND OFFSET
14
RESERVED
OPERAND SELECTOR
18
Figure 3-5. Instruction and Data Pointer Image in Memory, 32-Bit Protected-Mode Format
16-BIT PROTECTED MODE FORMAT
15
7
0
CONTROL WORD
0
STATUS WORD
2
TAG WORD
4
IP OFFSET
6
CS SELECTOR
8
OPERAND OFFSET
A
OPERAND SELECTOR
C
Figure 3-6. Instruction and Data Pointer Image in Memory, 16-Bit Protected-Mode Format
32-BIT REAL-ADDRESS MODE FORMAT
15
31
23
7
0
RESERVED
CONTROL WORD
0
RESERVED
STATUS WORD
4
RESERVED
TAG WORD
8
RESERVED
INSTRUCTION POINTER 15..0
C
0 0 0 0
INSTRUCTION POINTER 31..16
0
OPCODE 10..0
10
RESERVED
OPERAND POINTER 15..0
14
0 0 0 0
OPERAND POINTER 31..16
0 0 0 0
0 0 0 0 0 0 0 0
18
Figure 3-7. Instruction and Data Pointer Image in Memory, 32-Bit Real-Mode Format
17
17
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