Created
September 4, 2019 14:04
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Write a SimpleRisc assembly program to find the Ramanujan number, the smallest number that is a sum of two cubes in two different ways.
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| mov r2 1 // number considering as ramanujan number | |
| .for1: | |
| mov r1 0 // counter for ramanujan number | |
| mov R1 1 | |
| mov R2 1 | |
| mov R3 0 | |
| mov R4 1 | |
| mov r3 r2 | |
| .for2 : | |
| mov r4 r2 | |
| .for3: | |
| mul R1 r3 r3 | |
| mul R1 R1 r3 | |
| mul R2 r4 r4 | |
| mul R2 R2 r4 | |
| add R3 R2 R1 | |
| mul R4 r2 r2 | |
| mul R4 R4 r2 | |
| cmp R3 R4 | |
| beq .incrementcounter | |
| .incrementcounter: | |
| add r1 r1 1 | |
| sub r4 r4 1 | |
| cmp r4 0 | |
| bgt .for3 | |
| sub r3 r3 1 | |
| cmp r3 0 | |
| bgt .for2 | |
| add r2 r2 1 | |
| cmp r1 2 | |
| beq .found | |
| bgt .for1 | |
| cmp 2 r1 | |
| bgt .for1 | |
| .found: | |
| exit | |
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