addressing modes of 8086 microprocessor in hindi
What is addressing modes in microprocessor?
Immediate—Immediate addressing is not really an addressing mode into memory; rather, it is an instruction format that directly includes the data to be acted on as part of the instruction.
This form of operand access simplifies the instruction execution cycle since no additional fetches are required.What is immediate addressing mode?
It is also known as “Inherent” or “Implicit” addressing mode.
It is a type of addressing mode where no operand (data or memory location or register) is specified in the instruction.
Also, in the implied mode, the operands are specified implicitly in the instruction definition.What are the addressing modes of 8086 microprocessor?
What Is an Addressing Mode? The addressing mode is the method to specify the operand of an instruction.
The job of a microprocessor is to execute a set of instructions stored in memory to perform a specific task.
Operations require the following: The operator or opcode which determines what will be done.
Immediate Addressing Mode
माना किसी प्रोग्राम में हमें संख्या 326AH रजिस्टर BX में लोड करनी है। इस कार्य को करने के लिए इन्सटक्शन MOV BX. 326AH प्रयोग की जा सकती है। इस इन्सट्रक्शन को एक्जीक्यूट करने पर immediate हैक्साडेसीमल संख्या 326AH, 16-बिट रजिस्टर BX में कॉपी हो जाती है। यह immediate addressing मोड कहलाता है क्योंकि लोड की जाने वाली संख्या, MOV इन्सट्रक्शन कोड के तुर
Register Addressing
रजिस्टर एड्रैसिंग का अर्थ है कि इन्सट्रक्शन में ऑपरेन्ड (operand) का सास कोई रजिस्टर, इन्सट्रक्शन MOVCX, AX एक्जीक्यट करने पर 16-बिट रजिस्टर AX के contents, 16-बिट रजिस्टर में ध्यान दें, कि इन्सट्रक्शन में सोर्स से पहले डेस्टिनेशन लोकेशन का विवरण दिया गया है। यह भी समझना आवश्यक के contents, CX में केवल कॉपी होते हैं move नहीं होते। दूसरे शब्दों में
Direct Addressing Mode
मैमोरी को एड्रैस करने की सबसे सरल विधि यह है कि इन्सट्रक्शन में सीधे 8 या 16-बिट effective address (EA) लिख दिया जाये। इसका एक उदाहरण इन्सट्रक्शन MOV CL, [426AH] है। संख्या 426AH के दोनों ओर ब्रेकेट्स brackets) लगाये गये हैं। ब्रेकेट्स के अन्दर लिखी गयी संख्या, सेगमेन्ट बेस से मैमोरी लोकेशन का डिसप्लेसमेन्ट ऑफसेट प्रदर्शित करती है। एक्जीक्यूट करने
Register Indirect
इस विधि में, इन्सट्रक्शन में दिये गये बेस रजिस्टर BX अथवा किसी इन्डैक्स रजिस्टर में EA (effective address) होता है। अर्थात् डायग्राम javahindi.com
Register Relative
इस मोड में बेस रजिस्टर अथवा इन्डैक्स रजिस्टर के contents एवं 8 या 16-बिट डिसप्लेसमेन्ट का योग EA होता है। अर्थात्, डायग्राम javahindi.com
Based Indexed
इस मोड में EA, किसी बेस रजिस्टर तथा एक इन्डैक्स रजिस्टर का योग होता है। ये दोनों इन्सट्रक्शन में दिये जाते हैं। अर्थात् डायग्राम javahindi.com
Relative Based Indexed
इस मोड में EA, 8-बिट या 16-बिट डिसप्लेसमैन्ट तथा based indexed एड्रैस का योग होता है। अर्थात्, डायग्राम उदाहरण के लिये माना, (BX) =0158H, (DI) = 10A5A, Displacement (Offset) = 1B57H तथा DS-2100 तब डाटा सेगमैन्ट (DS) का सेगमेन्ट रजिस्टर मानकर विभिन्न मोड्स में EA तथा PA इस प्रकार होंगे Direct : EA= 1057 Physical address = 21000 + 1B57 = 22357 Regist
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