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Fix build failure.

This commit is contained in:
George Norton 2023-08-21 07:45:21 +01:00
parent f9a2b6efa4
commit fdcb96971f
1 changed files with 12 additions and 2 deletions
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14
firmware/code/fix16.inl
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@ -89,7 +89,17 @@ static inline fix3_28_t fix16_mul(fix3_28_t inArg0, fix3_28_t inArg1) {
uint32_t B = (inArg0 & 0x3FFF), D = (inArg1 & 0x3FFF);
int32_t AC = A*C;
int32_t AD_CB = A*D + C*B;
product_hi = AC + (AD_CB >> 14);
// Carry not handled.
int32_t product_hi = AC + (AD_CB >> 14);
#if HANDLE_CARRY
// Handle carry from lower bits to upper part of result.
uint32_t BD = B*D;
uint32_t ad_cb_temp = AD_CB << 14;
uint32_t product_lo = BD + ad_cb_temp;
if (product_lo < BD)
product_hi++;
#endif
return product_hi;
}