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