GLX: Fix assembly stubs for x32
This fixes the GLX assembly stubs on x32.
x32 uses (I think?) the same code to find the global entrypointFunctions array, but the assembly code needs to calculate an offset using 32-bit pointers, not 64-bit.
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This fixes the GLX assembly stubs on x32.
x32 uses (I think?) the same code to find the global entrypointFunctions array, but the assembly code needs to calculate an offset using 32-bit pointers, not 64-bit.