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authorLioncash <mathew1800@gmail.com>2015-01-05 15:10:59 +0100
committerLioncash <mathew1800@gmail.com>2015-01-05 15:13:41 +0100
commitd00c22c706e76edd1be009faeab69a94cd0d5ef1 (patch)
treec7dff0a7f0e7daf0a9d2973d3ab2df128fe06522 /src/core/arm/interpreter
parentMerge pull request #403 from yuriks/shutdown-system (diff)
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Diffstat (limited to 'src/core/arm/interpreter')
-rw-r--r--src/core/arm/interpreter/armsupp.cpp20
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. */