Doubles Drop the 's'

Floating Point

floating-pointdouble-precisiontypes

`f64` is double precision

Single precision is f32. Double precision is f64, the C double, and the hardware mirrors every float op in a second flavor without the trailing s. So a + b on f64 operands lands on fadd, not fadds:

fadd f1, f1, f2    # f1 = a + b, double precision
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fadd/fmul/fsub/fdiv handle doubles; fadds/fmuls/fsubs/fdivs handle singles. One letter pins down the operand type. That little difference is gold when rebuilding the original C declarations from disassembly.

Your task

Write func_80308184 to compile to the fadd above.

Hints

match func_80308184mwcceppc.exe -O4,p

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Hit “Compile & Check” to diff your code against the target.