addrmem-3750

addrmem-3750 - bus 8086 memory 00000 FFFFF 551A4 551A5 3104...

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EE 3750 Addressing Memory
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MOV CX, [BX] CX = destination — register [BX] = source — memory location 1. Generate physical address for memory location from contents of BX and DS (shifted by 4) — put on address bus 2. Retrieve contents of word in memory — put on data bus 3. Write data into CX
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3104 02C5 520A 27 C9 BX CX DS address bus data
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Unformatted text preview: bus 8086 memory 00000 FFFFF 551A4 551A5 3104 02C5 520A 27 C9 BX CX DS address bus data bus 8086 memory 00000 FFFFF 551A4 551A5 520A0 = DS shifted by 4 +3104 = BX 551A4 = physical address 551A4 3104 C927 520A 27 C9 BX CX DS address bus data bus 8086 memory 00000 FFFFF 551A4 551A5 551A4 C927...
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addrmem-3750 - bus 8086 memory 00000 FFFFF 551A4 551A5 3104...

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