Answer Posted / sunil k v

1.Direct Addressing mode (eg:IN 00H,OUT 05H).

2.Immediate Addressing mode (eg:MVI 56H).

3.Register Addressing mode (eg:MOV Rd Rs)-Rd=Destination
register and Rs=Source register.

4.Indirect Addressing mode (eg:LDA M)-M=Memory content
address(R/RW memory) stored in one of the register pair(16-
bit).

5.Implicit Addressing mode (eg:CMA)-Complements accumulator.

Signal voltage ranges for a logic high and for a logic low in RS-232C standard are

1079

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Can port 0 be used as input output port?

1137

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How do vectored and non-vectored interrupts differ?

1107

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What are the different types of assemblers used?

1095

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What are issues related to stack and bank 1.?

1375

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If a1M1× DRAM requires 4 ms for a refresh and has 256 rows to be refreshed, no more than __________ of time must pass before another row is refreshed.

1308

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What is the purpose of segment register?

922

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Explain the differences between the nmi and intr

1163

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These are two ways in which a microprocessor can come out of Halt state.

1096

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Mention the types of programmed data transfer?

1107

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How many types memory mgt can divided?

1042

---

Define byte?

1086

---

Write the special functions carried by the general purpose registers of 8086?

995

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What are the different types of addressing modes?

1043

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What type of instruction is cpi ‘c’ and define the action it performs?

1126

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