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Add SMULL instruction inline function.

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This commit is contained in:
Jared Boone 2016-08-10 09:53:35 -07:00
parent 447a7a5661
commit c8af6dcd70
1 changed files with 14 additions and 0 deletions
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14
firmware/chibios-portapack/os/hal/platforms/LPC43xx_M4/lpc43xx_m4.h
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@ -196,6 +196,20 @@ __attribute__( ( always_inline ) ) __STATIC_INLINE int32_t __SMULTT(uint32_t op1
return result;
}
#undef __SMULL
__attribute__( ( always_inline ) ) static inline int64_t __SMULL (int32_t op1, int32_t op2)
{
union llreg_u{
uint32_t w32[2];
int64_t w64;
} llr;
__asm volatile ("smull %0, %1, %2, %3" : "=r" (llr.w32[0]), "=r" (llr.w32[1]): "r" (op1), "r" (op2));
return(llr.w64);
}
#undef __SMLALD
__attribute__( ( always_inline ) ) static inline int64_t __SMLALD (uint32_t op1, uint32_t op2, int64_t acc)