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Execution Unit (EU) and Bus Interface Unit (BIU) :
8086 consist of two processors called EU and BIU. Two Processors can work parallel. This improves speed of execution. BIU first fetches instruction and place them in the instruction queue.
Execution unit decodes and execute instruction. When EU is executing an instructionthenBIU can fetch the next instruction.
Write an application that does the following: (1) fill an array with 50 random integers; (2) loop through the array, displaying each value, and count the number of negative values;
Opcode : The opcode generally appear in the first byte.but in a few instructions, a register objective is in the first byte and few other instructions may have their 3-bits of
Queue Operation : RQ/CT0, RQ/G1-Request/Grant: These pins are utilized by other local bus masters, in themaximum mode, to force the processor to release the loca
DMA DMA stands for Direct Memory Access It is uses same Address/Data lines on ISA bus It controls the ISA bus instead of the processor ("bus master") Floppy
chp 3 of assemly
init_lcd ;(this initialises a 2 row lcd) bcf TRISA,0 ;PORTA bit 0 as an output (lcd RS pin) bcf TRISA,1 ;PORTA bit 1
Memory Mapped I/O Memory I/O devices are mapped into the system memory map with ROM and RAM. To access a hardware device, simply write or read to those 'special' addresse
CMPS : Compare String Byte or String Word:-The CMPS instruction may be utilized to compare two strings of Words or byte. The length of the string ought to be stored in the CX. If
Write a 68hc11 assembly language program which generation of the following waveforms connected to your DAC i) Square wave ii) Saw tooth waveform iii) Sine wave iv) U
Tabular comparison for µ PS' Parameters Tables (a) and (b) list the characteristic of Intel microprocessor. Table(a): Table(b): It has a 64 bit da
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