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Within micro controller's software, it is very useful to be able to manipulate binary bits i.e. from ports etc. The ALU has command to shift data, rotate data, compare data, set/clear bits, test bits and logical operate on data.
LSLA i.e shift A one place to the left fill up with 0 LSLB i.e shift B one place to the left fill up with 0 LSRA i.e shift A one place to the right fill up with 0 LSRB i.e shift B one place to the right fill up with 0 ROLA i.e rotate A one place to the left through carry ROLB i.e rotate B one place to the left through carry RORA i.e rotate A one place to the right through carry RORB i.e rotate B one place to the right through carry CBA i.e A-B with no answer stored just flags set CMPA i.e compare A with memory i.e A-M CMPB i.e compare B with memory i.e B-M BSET $20,#$1 i.e set bit 1 of memory address 20 BCLR $20,#$1 i.e clear bit 1 of memory address 20 BITA $20 i.e Check bit mask found in A with address 20 BITB $20 i.e Check bit mask found in A with address 20 ANDA $20 i.e logical and A with data at address 20 EXORA $20 i.e logical exor A with data at address 20 COM $20 i.e logical invert data at address 20 ORRA $20 i.e logical OR A with data at address 20 MUL ;Multiplies axb and stores the answer in D i.e both FDIV ;Fractional divide using D/IX IDIV ;Integer divide using D/IX ADDD ;16 bit add to D DAA ;Decimal adjust add sum to BCD data
Q. Fundamental building block of main memory? The fundamental building block of main memory remains DRAM chip as it has for decades. Till recently there had been no important c
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Q. Explain the Structured Design of system? Structured Design utilizes graphic description (Output of system analysis) and focuses on development of software specifications.
Describe the customer service and support in post purchase Interaction. Post purchase Interaction: The considerations at this step can be explained by the given example:
Highlights of the RMTrack application: ? Web based access permits your users to access the database from anywhere. ? Available as a hosted solution or a download for local in
Give difference between assembler and compiler. Assembler: It is the translator for an assembly language of computer. An assembly language is a low-level programming language
pc register contains?
What Component of LoadRunner would you use to play Back the script in multi user mode? Ans) The Controller component is used to playback the script in multi-user mode. This is c
1. Figure 1 below shows the truth table for five different functions. Each truth table shows the inputs x1, x2 and the desired output d. (a) Write down which of these functions
deque insertion and deletion ..
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