Homework crashes, I can't figure out why

[RyanKelly]

Both conditions in your while statement get evaluated because you are performing the bitwise AND on the results of the two condtions. See the edit to my first reply.

For a statement such as:
while i>=0 and a(i)>value

fbc.exe produces this assembly language code:

mov eax, dword ptr [_Ii]
test eax, eax
setge al
shr eax, 1
sbb eax, eax
mov ebx, dword ptr [_Ii]
mov ecx, dword ptr [_Ai+ebx*4]
cmp ecx, dword ptr [_VALUEi]
setg cl
shr ecx, 1
sbb ecx, ecx
and eax, ecx


Notice that both calculation are performed every time.