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by userbinator
2839 days ago
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They are not linked, the lodsb instruction loads a byte from the address pointed at by esi into ax. lodsb (b for Byte) loads into al, not ax. It's lodsw (Word) which uses ax, and of course there's lodsd for eax and even lodsq for rax (64-bit only). This will be the return value of main and the exit code of the program. Since you errored, you want to return a nonzero value. Actually that's the non-error path; eax is set to 1 and edx to 0 as initial values for computing fib(n) in the fibloop. |
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