N386SX データシートの表示（PDF） - Intel
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N386SX Datasheet PDF : 47 Pages
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Intel387TM SX MATH COPROCESSOR
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OPCODE 10 0
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32-BIT PROTECTED MODE FORMAT
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IP OFFSET
CS SELECTOR
DATA OPERAND OFFSET
OPERAND SELECTOR
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Figure 3-5 Instruction and Data Pointer Image in Memory 32-Bit Protected-Mode Format
16-BIT PROTECTED MODE FORMAT
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IP OFFSET
CS SELECTOR
OPERAND OFFSET
OPERAND SELECTOR
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Figure 3-6 Instruction and Data Pointer Image in Memory 16-Bit Protected-Mode Format
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32-BIT REAL-ADDRESS MODE FORMAT
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CONTROL WORD
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STATUS WORD
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TAG WORD
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INSTRUCTION POINTER 15 0
INSTRUCTION POINTER 31 16
0
OPCODE 10 0
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OPERAND POINTER 15 0
OPERAND POINTER 31 16
0000
00000000
0
0
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C
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Figure 3-7 Instruction and Data Pointer Image in Memory 32-Bit Real-Mode Format
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