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Intel's 8237 DMA controller :
1) The 8237 contain 4 independent I/O channels
2) It contains 27 registers, 7 of which are system-wide registers and 5 for each channel.
3) Out of 5 register: 4 are 16-bit and 1 is 6-bit. they are
Intel's 8237 DMA controller : 1) The 8237 contain 4 independent I/O channels 2) It contains 27 registers, 7 of which are system-wide registers and 5 for each channel. 3)
Multiply two numbers by using shift and rotate instruction
Memory Segmentation : The memory in an 8086/8088 based system is organized as segmented memory. In this scheme, the whole physically available memory can be divided into a n
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
1. Write a program that will generate an array of ten random 32-bit integers, and that will display on the monitor the numbers followed by either the words " has the fourth bit se
2. Write a program to separate out positive and negative numbers from a given series of 16-bit hexadecimal numbers.
Cache Memory Caching is a technology based on the memory subsystem of any computer. The majoraim of a cache is to accelerate the computer while keeping the cost of the computer
move a byte string ,16 bytes long from the offset 0200H to 0300H in the segment 7000H..
what is implied addressing
Display control 8279 provides a 16 byte display memory and refresh logic. Every address in the display memory corresponds to a display unit with address zero represen
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