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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
Function name or connective symbol: Whether if we write op(x) to signify the symbol of the compound operator then predicate name and function name or connective symbol are the
In a two-pass assembler, the task of the Pass II is to? Ans. The task of the Pass II is to synthesize the target program in a two-pass assembler.
a. Explain the hardware mechanism for handling multiple interrupt requests. b. What are handshaking signals? Describe the handshake control of data transfer during input and out
How do I connect to an SQL Server instance that is running on a machine with multiple instances of SQL Server 2000? Ans) Every instance of MS SQL Server must be listening on a d
Three firm capabilities that are critical for superior firm performance in e-commerce are:- 1. Information technology capability, 2. Strategic flexibility, and 3. Tr
Execution of a program in CPU is completed employing different set of registers and their individual circuitry. As CPU registers are used for execution of interrupt service routine
What is a pipeline hazard? Any condition that causes the pipeline to stall is known as hazard. They are also known as stalls or bubbles.
what is spatial parallelis
What is a Shift Register? Ans: Shift Register: A register wherein data finds shifted towards left or right while clock pulses are applied is termed as a Shift Register.
The assignment enhances the acquisition of new knowledge through reading, research and practical work in class and at home. It requires critical thinking applied to real life tasks
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