09. Exceptions and traps

Copy exception handler code from lecture and modify it to output «bad address» when illegal memory read/write exception is occurred
Write a macro sqrt.t.s %freg1 %freg2 that traps while performing single-precision float sqrt.s. Write a demo program than repeatedly inputs a float then prints square root of it, and exception handler prints "Square root from negative" when such a trap emitted, and exit execution otherwise (e. g. on illegal input)
```
   1 $ Mars nc sqrt.t.s.asm
   2 123
   3 11.090536
   4 100
   5 10.0
   6 144
   7 12.0
   8 100500
   9 317.01736
  10 -23
  11 Square root from negative
  12 NaN
  13 43
  14 6.5574384
  15 -0.0001
  16 Square root from negative
  17 NaN
  18 345678
  19 587.94385
  20 .
  21 Error
  22 
  23 $
```

HSE/ArchitectureASM/Lab_09_ExceptionsTraps (последним исправлял пользователь FrBrGeorge 2019-12-20 07:52:02)