Which of the following bits are used for sign extension in DSP56000?(a) upper 8 bits of the stack pointer(b) lower 8 bits of the stack pointer(c) lower 8 bits of the program counter(d) upper 8 bits of the program counterThis question was addressed to me in an interview for job.This is a very interesting question from Examples of Embedded System Digital Signal Processing topic in division Embedded Processors of Embedded Systems

Which of the following bits are used for sign extension in DSP56000?(a

1.	Which of the following bits are used for sign extension in DSP56000?(a) upper 8 bits of the stack pointer(b) lower 8 bits of the stack pointer(c) lower 8 bits of the program counter(d) upper 8 bits of the program counterThis question was addressed to me in an interview for job.This is a very interesting question from Examples of Embedded System Digital Signal Processing topic in division Embedded Processors of Embedded Systems
Answer» Correct OPTION is (d) upper 8 bits of the program counter To explain: The DSP56000 have a 24-bit program counter in which the upper 8 bits are only USED for sign extension.

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