Steinar H. Gunderson: Decompilation patterns, part 14: Strength increase

Let's look at the entire loop from yesterday: u16 spE10; u16 *var_v0_2; … var_t1_2 = 0x7F; var_v0_2 = &spE10 + 0xFE; do { *var_v0_2 = 0; var_t1_2 -= 1; var_v0_2 -= 2; } while (var_t1_2 >= 0); What's going with the pointer arithmetic here? Why is it indexing out-of-bounds? The first thing to notice is that m2c doesn't really take into account that arithmetic on pointers in C is multiplied by the size of the element. And obviously, spE10 is…

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