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DMA Hardware (8237 DMAC) :
1)Processor contain HOLD/HOLD Acknowledge lines to interact with 8237
o DMAC can achieve control of ISA bus by asserting HOLD
o Processor acknowledges with HLDA
2)DRQ4 services slave controller Priorities are set as fixed
o DRQ0 highest and DRQ7 lowest
o It set at POST
o It can be reprogrammed for rotating priority
3)ISA address/data/control lines are also linked (not shown)
o It can access control registers through ports
o Each channel has a page register associated with
MLIL: Unsigned Multiplication Byte or Word: This instruction multiplies an unsigned byte or word by the contents of the AL. The unsigned byte or word can be in any one of the gene
You have to write a subroutine (assembly language code using NASM) for the following equation.
Multiply two numbers by using shift and rotate instruction
Write an assembly program that adds the elements in the odd indices of the following array. Use LOOP. What is the final value in the register?
I NEED PROJECT OF COFE SHOP
ali is impressed_____ ahmed''s grades.
The Pentium Pro Introduced in the year 1995, the Pentium Pro reflected still more design breakthroughs. The Pentium Pro may process 3 instructions in a single clock cy
how we can take permission
define accounting.briefly explain the accounting concepts which guide the accountant at the recording stage.
General terms for Cache : Cache Hits : When the cache consisted the information requested, the transaction is said to be a cache hit. Cache Miss : When the cache does n
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