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port udivmoddi4 and __aeabi_uldivmod #25

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Merged
merged 11 commits into from
Aug 11, 2016
Merged

port udivmoddi4 and __aeabi_uldivmod #25

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9505646
port udivmoddi4 and __aeabi_uldivmod
Aug 11, 2016
732f1e2
some targets need gcc to be installed
Aug 11, 2016
39ede7e
and libc6-dev
Aug 11, 2016
cc9d3e8
port __udivmodsi4, aeabi_uidivmod and udivsi3
Aug 11, 2016
0915e15
*mut T -> Option<&mut T>
Aug 11, 2016
a2fc4da
move return into if branches
Aug 11, 2016
d6be95a
note about calling convention
Aug 11, 2016
a84579d
refactor: use Int traits, words -> U64, fmt
Aug 11, 2016
3ff25d9
put div intrinsics in their own module + some docs
Aug 11, 2016
1c22269
don't transmute in test
Aug 11, 2016
eb20684
address second row of review
Aug 11, 2016
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move return into if branches
  • Loading branch information
Jorge Aparicio committed Aug 11, 2016
commit a2fc4da7a52c31e4b83692f34cf96d7c0dd9bf69
6 changes: 3 additions & 3 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -141,15 +141,15 @@ pub extern "C" fn __udivmoddi4(a: u64, b: u64, rem: Option<&mut u64>) -> u64 {

// NOTE X is unknown, K != 0
if n.high == 0 {
return if d.high == 0 {
if d.high == 0 {
// 0 X
// ---
// 0 X

if let Some(rem) = rem {
*rem = u64::from(n.low % d.low);
}
u64::from(n.low / d.low)
return u64::from(n.low / d.low);
} else
// d.high != 0
{
Expand All @@ -160,7 +160,7 @@ pub extern "C" fn __udivmoddi4(a: u64, b: u64, rem: Option<&mut u64>) -> u64 {
if let Some(rem) = rem {
*rem = u64::from(n.low);
}
0
return 0;
};
}

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