Start crash fixes
Two little crashes crept into the game while I wasn't looking.
a) do not use _lzcnt_u32() anymore for texture size calculations as it silently yields wrong results on older CPUs.
b) do not use _popcnt() anymore as it produces an INVALID_INSTRUCTION crash on older CPUs.
Huge thanks to qDan, SkEyE, meetnik for their patience and their aid in getting to the bottom of this.
a) do not use _lzcnt_u32() anymore for texture size calculations as it silently yields wrong results on older CPUs.
b) do not use _popcnt() anymore as it produces an INVALID_INSTRUCTION crash on older CPUs.
Huge thanks to qDan, SkEyE, meetnik for their patience and their aid in getting to the bottom of this.