4 ms·
x87 everywhere? as in...floating point instructions? These games aren't designed for an 8086, having an FPU is generally expected
by IntelMiner 3y ago
x87 everywhere? as in...floating point instructions?
These games aren't designed for an 8086, having an FPU is generally expected
- jlokier 3y agox87 is different from modern floating-point, including the modern floating-point operations on x86 CPUs (SSE and later instructions) and ARM64. x87 calculates with 80-bit floats ("long double" in C), but the host CPU's FPU typically supports only 64-bit floats ("double"). So accurate x87 emulation can't translate all operations directly to host FPU operations. It must use software floating-point on the host instead, which is much slower.