SIC/XE program to clear 20 byte string using Immediate addressing mode

This system software program demonstrates set of instructions for SIC/XE to clear a 20-byte string to all blanks using immediate addressing and register-to-register addressing mode.

Write a sequence of instructions for SIC/XE to clear a 20-byte string to all blanks. Use immediate addressing and register-to-register instructions to make the process as efficient as possible.

Source Code