mirror of
https://github.com/cc65/cc65.git
synced 2024-06-18 07:29:36 +00:00
Merge branch 'master' into fptest
# Conflicts: # src/cc65/expr.c # src/cc65/scanner.c
This commit is contained in:
commit
92d9e4fcd7
|
@ -807,6 +807,9 @@ and the one defined by the ISO standard:
|
|||
<itemize>
|
||||
|
||||
<item> The datatypes "float" and "double" are not available.
|
||||
Floating point constants may be used, though they will have to be
|
||||
converted and stored into integer values.
|
||||
Floating point arithmetic expressions are not supported.
|
||||
<p>
|
||||
<item> C Functions may pass and return structs (or unions) by value, but only
|
||||
of 1, 2 or 4 byte sizes.
|
||||
|
|
|
@ -1913,6 +1913,7 @@ static void UnaryOp (ExprDesc* Expr)
|
|||
/* Get the expression */
|
||||
hie10 (Expr);
|
||||
|
||||
#if 0
|
||||
/* We can only handle integer types */
|
||||
if (!IsClassInt (Expr->Type)
|
||||
&& !IsClassFloat (Expr->Type) /* FIXME: float */
|
||||
|
@ -1949,9 +1950,48 @@ static void UnaryOp (ExprDesc* Expr)
|
|||
/* Limit the calculated value to the range of its type */
|
||||
LimitExprValue (Expr, 1);
|
||||
|
||||
#else
|
||||
/* Check for a constant numeric expression */
|
||||
if (ED_IsConstAbs (Expr)) {
|
||||
|
||||
if (IsClassFloat (Expr->Type)) {
|
||||
switch (Tok) {
|
||||
case TOK_MINUS: Expr->V.FVal = FP_D_Sub(FP_D_Make(0.0),Expr->V.FVal); break;
|
||||
case TOK_PLUS: break;
|
||||
case TOK_COMP: Error ("Unary ~ operator not valid for floating point constant"); break;
|
||||
default: Internal ("Unexpected token: %d", Tok);
|
||||
}
|
||||
} else {
|
||||
if (!IsClassInt (Expr->Type)) {
|
||||
Error ("Constant argument must have integer or float type");
|
||||
ED_MakeConstAbsInt (Expr, 1);
|
||||
}
|
||||
|
||||
/* Value is numeric */
|
||||
switch (Tok) {
|
||||
case TOK_MINUS: Expr->IVal = -Expr->IVal; break;
|
||||
case TOK_PLUS: break;
|
||||
case TOK_COMP: Expr->IVal = ~Expr->IVal; break;
|
||||
default: Internal ("Unexpected token: %d", Tok);
|
||||
}
|
||||
|
||||
/* Adjust the type of the expression */
|
||||
Expr->Type = IntPromotion (Expr->Type);
|
||||
|
||||
/* Limit the calculated value to the range of its type */
|
||||
LimitExprValue (Expr, 1);
|
||||
}
|
||||
|
||||
#endif
|
||||
} else {
|
||||
unsigned Flags;
|
||||
|
||||
#if 0
|
||||
/* If not constant, we can only handle integer types */
|
||||
if (!IsClassInt (Expr->Type)) {
|
||||
Error ("Non-constant argument must have integer type");
|
||||
ED_MakeConstAbsInt (Expr, 1);
|
||||
}
|
||||
#endif
|
||||
/* Value is not constant */
|
||||
LoadExpr (CF_NONE, Expr);
|
||||
|
||||
|
|
|
@ -712,23 +712,21 @@ static void NumericConst (void)
|
|||
/* Check for a fractional part and read it */
|
||||
if (SB_Peek (&Src) == '.') {
|
||||
|
||||
Double Scale;
|
||||
Double Scale, ScaleDigit;
|
||||
|
||||
/* Skip the dot */
|
||||
SB_Skip (&Src);
|
||||
|
||||
/* Read fractional digits */
|
||||
Scale = FP_D_Make (10.0);
|
||||
ScaleDigit = FP_D_Div (FP_D_Make (1.0), FP_D_FromInt (Base));
|
||||
Scale = ScaleDigit;
|
||||
while (IsXDigit (SB_Peek (&Src)) && (DigitVal = HexVal (SB_Peek (&Src))) < Base) {
|
||||
/* Get the value of this digit */
|
||||
Double FracVal = FP_D_FromInt(0);
|
||||
if (DigitVal != 0) {
|
||||
FracVal = FP_D_Div (FP_D_FromInt (DigitVal), Scale);
|
||||
}
|
||||
Double FracVal = FP_D_Mul (FP_D_FromInt (DigitVal), Scale);
|
||||
/* Add it to the float value */
|
||||
FVal = FP_D_Add (FVal, FracVal);
|
||||
/* Scale base */
|
||||
Scale = FP_D_Mul (Scale, FP_D_FromInt (Base));
|
||||
/* Adjust Scale for next digit */
|
||||
Scale = FP_D_Mul (Scale, ScaleDigit);
|
||||
/* Skip the digit */
|
||||
SB_Skip (&Src);
|
||||
}
|
||||
|
@ -740,12 +738,15 @@ static void NumericConst (void)
|
|||
|
||||
unsigned Digits;
|
||||
unsigned Exp;
|
||||
int Sign;
|
||||
|
||||
/* Skip the exponent notifier */
|
||||
SB_Skip (&Src);
|
||||
|
||||
/* Read an optional sign */
|
||||
Sign = 0;
|
||||
if (SB_Peek (&Src) == '-') {
|
||||
Sign = 1;
|
||||
SB_Skip (&Src);
|
||||
} else if (SB_Peek (&Src) == '+') {
|
||||
SB_Skip (&Src);
|
||||
|
@ -775,9 +776,11 @@ static void NumericConst (void)
|
|||
Warning ("Floating constant exponent is too large");
|
||||
}
|
||||
|
||||
/* Scale the exponent and adjust the value accordingly */
|
||||
/* Scale the exponent and adjust the value accordingly.
|
||||
** Decimal exponents are base 10, hexadecimal exponents are base 2 (C99).
|
||||
*/
|
||||
if (Exp) {
|
||||
FVal = FP_D_Mul (FVal, FP_D_Make (pow (10, Exp)));
|
||||
FVal = FP_D_Mul (FVal, FP_D_Make (pow ((Base == 16) ? 2.0 : 10.0, (Sign ? -1.0 : 1.0) * Exp)));
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
@ -151,6 +151,17 @@ static void DoConversion (ExprDesc* Expr, const Type* NewType, int Explicit)
|
|||
}
|
||||
/* FIXME: float --- end of new code */
|
||||
|
||||
/* If this is a floating point constant, convert to integer,
|
||||
** and warn if precision is discarded.
|
||||
*/
|
||||
if (IsClassFloat (OldType) && IsClassInt (NewType)) {
|
||||
long IVal = (long)Expr->V.FVal.V;
|
||||
if ((Expr->V.FVal.V != FP_D_FromInt(IVal).V) && !Explicit) {
|
||||
Warning ("Floating point constant (%f) converted to integer loses precision (%ld)",Expr->V.FVal.V,IVal);
|
||||
}
|
||||
Expr->IVal = IVal;
|
||||
}
|
||||
|
||||
/* Check if the new datatype will have a smaller range. If it
|
||||
** has a larger range, things are OK, since the value is
|
||||
** internally already represented by a long.
|
||||
|
|
Loading…
Reference in New Issue
Block a user