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October 6, 2012 19:35
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Factorial function in assembly language
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| ; The input is a decimal number, | |
| ; Result is a hexadecimal number | |
| section .text | |
| ; to make the printf out work the main 'method' is needed | |
| global main | |
| ; for printing numbers out | |
| extern printf | |
| main: | |
| ; Find factorial for the initial value of ecx, | |
| mov ecx, 5 | |
| ; Copy the initial value of ecx to eax, | |
| ; eax is our factorial result | |
| mov eax, ecx | |
| loop: | |
| ; If the counter is less or equal to 1, finish | |
| cmp ecx, 1 | |
| jle end | |
| sub ecx, 1 | |
| mul ecx | |
| jmp loop | |
| end: | |
| ; Display the message and exit | |
| push eax | |
| push message | |
| call printf | |
| add esp, 8 | |
| ret | |
| section .data | |
| message: db "The result is = %08X", 10, 0 |
Where's the risc-v version?
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Can u write a 8051 assembly language program for reversal of given number