19 lines
415 B
Rust
19 lines
415 B
Rust
intrinsics! {
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// Implementation from gcc
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// https://raw.githubusercontent.com/gcc-mirror/gcc/master/libgcc/config/epiphany/mulsi3.c
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pub extern "C" fn __mulsi3(a: u32, b: u32) -> u32 {
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let (mut a, mut b) = (a, b);
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let mut r = 0;
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while a > 0 {
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if a & 1 > 0 {
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r += b;
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}
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a >>= 1;
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b <<= 1;
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}
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r
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}
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}
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