This System Software programs shows the sequence of instructions for SIC/XE to set ALPHA equal to 4 * BETA – 9. The Immediate Addressing mode is used for demonstration.
Write a sequence of instructions for SIC/XE to set ALPHA equal to 4 * BETA – 9. Use immediate addressing for the constants.
|1||LDA BETA||Load the value of BETA in Accumulator|
|2||LDS #4||Load the value 4 to Register S|
|3||MULR S,A||Multiply the value of Accumulator with Register S and store the result back to Accumulator|
|4||SUB #9||Subtract the value 9 from the contents of accumulator|
|5||STA ALPHA||Store the value of accumulator to ALPHA|
|6||ALPHA RESW 1||Reserve 1 word for ALPHA|