When an I/O operation uses the I/O device raises a signal/flag that will .  On the other hand when an I/O operation uses the processor repeatedly

Which of the following instructions modify R7

Select all that apply to an ISA  (Instruction Set Architecture)  

A floating point number has a 2-bit exponent, and a 2-bit unsigned significand.  There is no bias to the exponent. What is the largest value (in decimal) this format can represent? What is the smallest value (in decimal) this format can represent?

You have been asked to use a single LC-3 instruction to copy a value in memory to a register. Which, if any, of the below LC-3 instructions can you use? ADD NOT LD LDI LEA STI

Which of these instructions modify R7?

If the operands were considered unsigned the description of the operation (in decimal) would be: Operand A Operand B Cin + + If the operands were considered 2’s complement the description of the operation would be Operand A Operand B + With regard to overflow

Simulate different scenarios in your head. For a single pass of the “program” (from entry point to exit point) Shape A is Shape B is Shape D is Shape E is Shape F is

Choose the correct inequality/equality operator for each comparison.   If it cannot be determined choose ??? (101)8 (101)10 1111 0111    interpret both as 2’s comp binary numbers  (1100)unsigned binary (1101)2’s comp 110 111    interpretation numbers could be 2’s comp or unsigned binary (1101111110101)unsigned (0xDF5)unsigned 011 010   interpretation of binary numbers could be 2’s comp or unsigned  

  Although not a true likeness, the purpose of Egyptian royal portraiture was not to record individual features, but rather______________