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| author | bunnei <bunneidev@gmail.com> | 2015-01-05 15:59:12 +0100 |
|---|---|---|
| committer | bunnei <bunneidev@gmail.com> | 2015-01-05 15:59:12 +0100 |
| commit | 8b1ec1a82a73e38754d1932b24b1c0fd7293e02b (patch) | |
| tree | 21fe4d3ad291857e6ea1b282b3c41b18d891a00a /src/core/arm/interpreter | |
| parent | Merge pull request #407 from Subv/arbiter (diff) | |
| parent | dyncom: Implement QADD/QSUB/QDADD/QDSUB (diff) | |
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Diffstat (limited to 'src/core/arm/interpreter')
| -rw-r--r-- | src/core/arm/interpreter/armsupp.cpp | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/src/core/arm/interpreter/armsupp.cpp b/src/core/arm/interpreter/armsupp.cpp index eec34143e..68ac2a0ce 100644 --- a/src/core/arm/interpreter/armsupp.cpp +++ b/src/core/arm/interpreter/armsupp.cpp @@ -418,22 +418,18 @@ ARMul_NegZero (ARMul_State * state, ARMword result) } } -/* Compute whether an addition of A and B, giving RESULT, overflowed. */ - -int -AddOverflow (ARMword a, ARMword b, ARMword result) +// Compute whether an addition of A and B, giving RESULT, overflowed. +bool AddOverflow(ARMword a, ARMword b, ARMword result) { - return ((NEG (a) && NEG (b) && POS (result)) - || (POS (a) && POS (b) && NEG (result))); + return ((NEG(a) && NEG(b) && POS(result)) || + (POS(a) && POS(b) && NEG(result))); } -/* Compute whether a subtraction of A and B, giving RESULT, overflowed. */ - -int -SubOverflow (ARMword a, ARMword b, ARMword result) +// Compute whether a subtraction of A and B, giving RESULT, overflowed. +bool SubOverflow(ARMword a, ARMword b, ARMword result) { - return ((NEG (a) && POS (b) && POS (result)) - || (POS (a) && NEG (b) && NEG (result))); + return ((NEG(a) && POS(b) && POS(result)) || + (POS(a) && NEG(b) && NEG(result))); } /* Assigns the C flag after an addition of a and b to give result. */ |