Problem Statement
Suppose that ALPHA is an array of 100 words. Write a sequence of instruction for SIC/XE to arrange the 100 words in ascending order and store result in an array BETA of 100 elements.
Solution
| Line Number | Code | Comments |
| 1 | SORT START 0 | |
| 2 | OUTER LDX INDEX | |
| 3 | LDS ARR1,X | |
| 4 | LDX #0 | |
| 5 | INNER LDT ARR1,X | |
| 6 | COMPR S,T | |
| 7 | JLT LOOP | |
| 8 | JEQ LOOP | |
| 9 | RMO S,A | |
| 10 | RMO T,S | |
| 11 | RMO A,T | |
| 12 | RMO X,A | |
| 13 | LDX INDEX | |
| 14 | STS ARR1,X | |
| 15 | RMO A,X | |
| 16 | STT ARR1,X | |
| 17 | LOOP RMO X,A | |
| 18 | ADD #3 | |
| 19 | COMP LENGTH | |
| 20 | RMO A,X | |
| 21 | JLT INNER | |
| 22 | LDA INDEX | |
| 23 | ADD #3 | |
| 24 | COMP LENGTH | |
| 25 | STA INDEX | |
| 26 | JLT OUTER | |
| 27 | ARR1 RESW 10 | |
| 28 | LENGTH WORD 30 | |
| 29 | INDEX WORD 0 |