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Changed negation of signed long stored in unsigned long to unsigned subtraction.

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acqn 2020-08-20 22:47:08 +08:00 committed by Oliver Schmidt
parent f59c2a08d9
commit 63256fd15d
1 changed files with 3 additions and 3 deletions
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6
src/cc65/codegen.c
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@ -2569,8 +2569,8 @@ void g_mul (unsigned flags, unsigned long val)
if (flags & CF_CONST) {
/* Deal with negative values if it's signed multiplication */
int Negation = (flags & CF_UNSIGNED) == 0 && (signed long)val < 0;
int p2 = PowerOf2 (Negation ? (unsigned long)-(signed long)val : val);
int Negation = (flags & CF_UNSIGNED) == 0 && (long)val < 0;
int p2 = PowerOf2 (Negation ? 0UL - val : val);
/* Check if we can use shift instead of multiplication */
if (p2 == 0 || (p2 > 0 && IS_Get (&CodeSizeFactor) >= (Negation ? 100 : 0))) {
@ -2690,7 +2690,7 @@ void g_div (unsigned flags, unsigned long val)
/* Deal with negative values as well as different sizes */
int Negation = (flags & CF_UNSIGNED) == 0 && (long)val < 0;
unsigned long NegatedVal = (unsigned long)-(long)val;
unsigned long NegatedVal = 0UL - val;
int p2 = PowerOf2 (Negation ? NegatedVal : val);
/* Generate a shift instead */