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CS 271 Project 6 String Primitives and Macros

Description

This program takes in 10 numeric user inputs (that can fit in a 32 bit register) as a string and converts them to signed numeric form (SDWORD). Numbers can be positive or negative. Thus the range of valid numbers are between -2147483648 and 2147483647.

The numbers are then converted back to string equivalents and displayed. Finally the sums and averages are calculated.

Macros

mGetString: Displays a prompt and read user input

mDisplayString: Prints string displayed in a memory location.

Procs

ReadVal: Uses string primitive to convert strings of ascii digits to numeric SDWORD values. Also validates user inputs.

WriteVal: Converts numeric SDWORD value to string of ASCII digits.

Requirements:

  • ReadInt, ReadDec, WriteInt and WriteDec are not allowed
  • Conversion routines must use LODSB and/or STOSB where appropriate
  • Proc params must be passed on stack
  • Strings must be passed by reference
  • Used registers must be saved and restored
  • No referencing data segment variables by name outside of main
  • Register indirect access must be used for accessing SDWORD int array elements
  • Base +off set addressing must be used for accessing params on runtime stack
  • Averages can be floored

Example output

program output

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