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dyncom: Move helper functions to their own header

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This commit is contained in:
Lioncash
2015-07-25 20:19:39 -04:00
parent 6b73e4566b
commit 0191c26521
10 changed files with 57 additions and 41 deletions
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9
src/core/arm/skyeye_common/armsupp.cpp
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@ -18,8 +18,9 @@
#include "common/logging/log.h"
#include "core/mem_map.h"
#include "core/arm/skyeye_common/armdefs.h"
#include "core/arm/skyeye_common/arm_regformat.h"
#include "core/arm/skyeye_common/armdefs.h"
#include "core/arm/skyeye_common/armsupp.h"
// Unsigned sum of absolute difference
u8 ARMul_UnsignedAbsoluteDifference(u8 left, u8 right)
@ -47,21 +48,21 @@ u32 AddWithCarry(u32 left, u32 right, u32 carry_in, bool* carry_out_occurred, bo
}
// Compute whether an addition of A and B, giving RESULT, overflowed.
bool AddOverflow(ARMword a, ARMword b, ARMword result)
bool AddOverflow(u32 a, u32 b, u32 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.
bool SubOverflow(ARMword a, ARMword b, ARMword result)
bool SubOverflow(u32 a, u32 b, u32 result)
{
return ((NEG(a) && POS(b) && POS(result)) ||
(POS(a) && NEG(b) && NEG(result)));
}
// Returns true if the Q flag should be set as a result of overflow.
bool ARMul_AddOverflowQ(ARMword a, ARMword b)
bool ARMul_AddOverflowQ(u32 a, u32 b)
{
u32 result = a + b;
if (((result ^ a) & (u32)0x80000000) && ((a ^ b) & (u32)0x80000000) == 0)