Explain the operation of each of the following instructions of the 8051 microcontroller. (i) MOV R1, #35H (ii) XCHD A, @R1 (iii) DEC HST (iv) SWAP A (v) SETB 00H (vi) CLR C
Added by Diana S.
Step 1
It simply loads the value 35H into R1. (ii) XCHD A, @R1: This instruction exchanges the lower nibble (4 bits) of the accumulator (A) with the contents of the memory location pointed to by R1. It swaps the 4 least significant bits of A with the 4 bits at the Show more…
Show all steps
Your feedback will help us improve your experience
Manish Jain and 92 other Physics 102 Electricity and Magnetism educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
1. Convert the following ARM assembly code into machine language. Write the instructions in hexadecimal -- 20 points. MOV R10, #63488 LSL R9, R7, #7 STR R4, [R11, R8] ASR R6, R7, R3 2. Consider the data-processing instructions with an immediate Src2. a. Which instructions from Problem 1 are in this format? b. Write out the 12-bit immediate field (imm12) of the instructions from part (a), then write them as 32-bit immediates.
Adi S.
Summarize the steps involved when the machine described in Appendix C performs an instruction with op-code 6. Express your answer as a set of directions as though you were telling the CPU what to do.
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD