juju.re/jujure/static/diplodocus/case2.c

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case 2:
{
enum moves move = context.move; //__offset0xa0
int32_t j = context.j;
int32_t i = context.i;
if (move == 0)
{
j = (j + 1);
}
else if (move == 1)
{
i = (i - 1);
}
else if (move == 2)
{
j = (j - 1);
}
else
{
op = op == 3;
i = (i + ((uint32_t)op));
}
int32_t row;
if ((j <= 0xb && i <= 0xb))
{
row = context.visited[i];
}
if (((j > 0xb || (j <= 0xb && i > 0xb)) || ((j <= 0xb && i <= 0xb) && (TEST_BITD(row, j)))))
{
context.err = (context.err | 1);
}
if (((j <= 0xb && i <= 0xb) && (!(TEST_BITD(row, j)))))
{
context.i = i;
context.j = j;
context.visited[i] = (row | ((int32_t)(1 << j))); // set bit
}
break;
}