Why are program counter and stack pointer 16-bit registers?
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Answer / bhumi
Program Counter (PC) and Stack Pointer (SP) are basically
used to hold 16-bit memory addresses.PC stores the 16-bit
memory address of the next instruction to be fetched.SP can
be used to temporarily store the 16-bit memory address as
well as data.So PC & SP are 16-bit registers.
| Is This Answer Correct ? | 218 Yes | 51 No |
Answer / mrinmoy karan
Program Counter (PC) and Stack Pointer (SP) are basically
used to hold 16-bit memory addresses.PC stores the 16-bit
memory address of the next instruction to be fetched.SP can
be used to temporarily store the 16-bit memory address as
well as data.So PC & SP are 16-bit registers.
| Is This Answer Correct ? | 7 Yes | 4 No |
Answer / abhinava
Program Counter (PC) and Stack Pointer (SP) are basically
used to hold 16-bit memory addresses.PC stores the 16-bit
memory address of the next instruction to be fetched.SP can
be used to temporarily store the 16-bit memory address as
well as data
So, PC & SP are 16-bit registers.
| Is This Answer Correct ? | 7 Yes | 5 No |
Answer / venki
8 bit address can only locate/address 256 memory locations. 16 bit address can locate up to 64kb. Even if 8 bit system can have more than 256 bytes of Ram/Rom/Flash (say whatever). And hence the need of 16 bit PC & SP instead of 8 bits. Data registers or data bus could be just 8 bits still.
| Is This Answer Correct ? | 5 Yes | 10 No |
Answer / riya roy palamattam
becoz 8085 microprocessors are 16 bit of address.and pc and sp adressIf the program counter and stack pointer were only 8-bits wide, the processor would be able to address only 256 address locations.
| Is This Answer Correct ? | 1 Yes | 7 No |
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