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Experiment-1: Introduction to 8051 Programming environment and Hardware

Introduction to Hardware ET-8031/51 KIT:   General: 8-bit 8031/8051 microcontroller operating at 10/12 MHz with on-chip oscillator and clock circuit, 8 i/o lines, two 16-bit timers/counters, five sources of interrupt structure. 64 KB of external program memory and 64 KB of data memory. Memory: Kit has 8KB RAM using IC 6264 and 32KB of EEPROM […]


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8086 Instruction Format-II

Introduction: Depending on the addressing mode used, an instruction of 8086 microprocessor can be one to seven byte long. These are: One Byte Instruction Two Byte Instruction Three Byte Instruction Four Byte Instruction Five Byte Instruction Six Byte Instruction Seven Byte Instruction The table shows the general format of 8086 instructions. The following paragraph gives […]


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8086 Instruction Format-I

Instruction Format of 8086 The instructions in 8086 are 1 to 7 byte long depending on the addressing mode. The immediate byte may be 8 or 16 bit, and the displacement in an instruction can be 0 bits or 8 bits or 16 bits. The OP CODE and addressing mode designation may be 1 to […]


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