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The carry flag indicates that an arithmetic operation between two numbers resulted in an unsigned carry or borrow. The overflow flag indicates that an arithmetic operation between two numbers resulted in an unexpected change in sign, i.e. an overflow.
Carry is also like overflow. The difference is in interpretation. Do you consider the numbers signed or unsigned? Its all in interpretation because the hardware logic needed to add two numbers works the same, no matter if they are considered signed or unsigned.
Both flags are set or cleared together, so you can use whichever you wish.
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When does the overflow flag in 8086 set?
In the 8086/8088, the overflow flag is set when the result of an arithmetic instruction exceeds the bounds of the signed representation of a number. This is not the same as the carry flag, which is used for the unsigned representation. Both flags get set as needed. You decide which one to pay attention to.
Show the difference between Motorola 6800 and Intel 8086?
Comparision between motorola6800 And Intel 8086
Main difference between 8085 and 8086?
The most significant difference between the Intel 8085 and 8086 microprocessors is that the 8085 is an 8-bit system and the 8086 is a 16-bit system. This difference allows the 8086 system to have a much larger set of operational instructions and can make calculations to more significant places. Note: the 8085 processor does have two 16-bit registers. The pointer and the program counter.
What is the difference between 8086 and 8088 microprocessor?
The difference between the 8086 and the 8088 is that the 8086 has a 16 bit data bus and that the 8088 has an 8 bit data bus. Both processors are the same 16 bit processor, and both have a 20 bit address bus. The 8086 is twice as fast as the 8088 in terms of data transfer rate on the bus for the same bus clock speed.
Explain difference 8085 and 8086 in detail?
a number (1) because 8085+1=8086
What is the difference between microprocessors 85 and 86?
85 is a 8 bit processor,number of flags are 5 and memory capacity is 64KB while 86 is a 16 bit processor ,number of flags are 9 and memory capacity is 1 MB.The main difference between 8085 and 8086 is that 8086 uses pipelining.
What is psw of 8086?
Flag Register (PSW)Status is indicated with individual bits: 0 - CF - Carry Flag2 - PF - Parity Flag4 - AF - Auxiliary carry Flag6 - ZF - Zero Flag7 - SF - Sign Flag8 - TF - Trap Flag9 - IF - Interrupt Flag10 - DF - Direcetion Flag11 - OF - Overflow Flag
What is the difference between between 8085 and 8086 microprosser?
The data bus of 8085 is 8 bit.Its operating frequency is 3.03 Mhz.Address bus is 16 bit. The data bus of 8086 is 16 bit.Its operating sfrequency is 5 MHZ.Address bus is 20 bit.
What type of flags in 8086 and 8088 microprocessor and their uses.?
There are nine flags in the 8086/8088.SF - Sign Flag - The result is negativeZF - Zero Flag - The result is zeroAF - Auxillary Carry Flag - A BCD carry occurredPF - Parity Flag - Indicates the oddness or evenness of the number of bitsCF - Carry Flag - An unsigned carry occurredOF - Overflow Flag - A signed overflow/carry occurredDF - Direction Flag - Controls the direction of repeated string operationsIF - Interrupt Flag - Enables or disables interruptsTF - Trace Flag - Controls the debug single step interruptIn general, most of these flags are set as a result of some arithmetic or logical instruction and can be tested using the conditional branch instructions. Exceptions are DF, which controls the directionality of repeated string operations, IF, which controls interrupts, and TF, which controls debugging.
what type of flags in 8086 and 8088 microprocessor and their uses?
There are nine flags in the 8086/8088.SF - Sign Flag - The result is negativeZF - Zero Flag - The result is zeroAF - Auxillary Carry Flag - A BCD carry occurredPF - Parity Flag - Indicates the oddness or evenness of the number of bitsCF - Carry Flag - An unsigned carry occurredOF - Overflow Flag - A signed overflow/carry occurredDF - Direction Flag - Controls the direction of repeated string operationsIF - Interrupt Flag - Enables or disables interruptsTF - Trace Flag - Controls the debug single step interruptIn general, most of these flags are set as a result of some arithmetic or logical instruction and can be tested using the conditional branch instructions. Exceptions are DF, which controls the directionality of repeated string operations, IF, which controls interrupts, and TF, which controls debugging.
What is the main difference between 8086 and 8088 microprocessor according to the pin configuration?
The 8086 has a 16 bit bus, while the 8088 has an 8 bit bus. In both A0 through A7 are shared as D0 through D7. The the 8086, A8 through A15 is also shared as D8 through D15.
What is the difference between 8051and 8086 and arm?
arm executes all instrctins in single cycle.but controller takes more than one cycle
