/* */
/* */
/* */
-/* (C) 2002-2004 Ullrich von Bassewitz */
-/* Römerstraße 52 */
-/* D-70794 Filderstadt */
-/* EMail: uz@cc65.org */
+/* (C) 2002-2010, Ullrich von Bassewitz */
+/* Roemerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
#include <string.h>
/* common */
+#include "fp.h"
#include "inline.h"
/* cc65 */
+#include "asmcode.h"
#include "datatype.h"
/*****************************************************************************/
-/* Data */
+/* Data */
/*****************************************************************************/
E_LOC_REGISTER | E_LOC_LITERAL,
/* Reference? */
- E_MASK_RTYPE = 0x8000,
+ E_MASK_RTYPE = 0x0100,
E_RTYPE_RVAL = 0x0000,
- E_RTYPE_LVAL = 0x8000
+ E_RTYPE_LVAL = 0x0100,
+
+ /* Bit-field? */
+ E_BITFIELD = 0x0200,
+
+ /* Test */
+ E_NEED_TEST = 0x0400, /* Expression needs a test to set cc */
+ E_CC_SET = 0x0800, /* Condition codes are set */
+
+ E_HAVE_MARKS = 0x1000, /* Code marks are valid */
+
};
-/* Defines for the test field of the expression descriptor */
-#define E_CC 0x0001U /* Condition codes are set */
-#define E_FORCETEST 0x0002U /* Force test to set condition codes */
+/* Forward */
+struct Literal;
/* Describe the result of an expression */
typedef struct ExprDesc ExprDesc;
struct ExprDesc {
- struct SymEntry* Sym; /* Symbol table entry if known */
- type* Type; /* Type array of expression */
- long Val; /* Value if expression constant */
- unsigned short Flags;
- unsigned short Test; /* */
- unsigned long Name; /* Name or label number */
+ struct SymEntry* Sym; /* Symbol table entry if known */
+ Type* Type; /* Type array of expression */
+ unsigned Flags;
+ unsigned long Name; /* Name or label number */
+ long IVal; /* Integer value if expression constant */
+ Double FVal; /* Floating point value */
+ struct Literal* LVal; /* Literal value */
+
+ /* Bit field stuff */
+ unsigned BitOffs; /* Bit offset for bit fields */
+ unsigned BitWidth; /* Bit width for bit fields */
+
+ /* Start and end of generated code */
+ CodeMark Start;
+ CodeMark End;
};
/*****************************************************************************/
-/* Code */
+/* Code */
/*****************************************************************************/
#if defined(HAVE_INLINE)
INLINE int ED_IsLocLiteral (const ExprDesc* Expr)
/* Return true if the expression is a string from the literal pool */
-{
+{
return (Expr->Flags & E_MASK_LOC) == E_LOC_LITERAL;
}
#else
Expr->Flags |= E_RTYPE_LVAL;
}
#else
-# define ED_MakeLVal(Expr) do { (Expr)->Flags |= E_RTYPE_LVAL; } while (0)
+# define ED_MakeLVal(Expr) do { (Expr)->Flags |= E_RTYPE_LVAL; } while (0)
#endif
#if defined(HAVE_INLINE)
Expr->Flags &= ~E_RTYPE_LVAL;
}
#else
-# define ED_MakeRVal(Expr) do { (Expr)->Flags &= ~E_RTYPE_LVAL; } while (0)
+# define ED_MakeRVal(Expr) do { (Expr)->Flags &= ~E_RTYPE_LVAL; } while (0)
#endif
+#if defined(HAVE_INLINE)
+INLINE int ED_IsBitField (const ExprDesc* Expr)
+/* Return true if the expression is a bit field */
+{
+ return (Expr->Flags & E_BITFIELD) != 0;
+}
+#else
+# define ED_IsBitField(Expr) (((Expr)->Flags & E_BITFIELD) != 0)
+#endif
+
+void ED_MakeBitField (ExprDesc* Expr, unsigned BitOffs, unsigned BitWidth);
+/* Make this expression a bit field expression */
+
+#if defined(HAVE_INLINE)
+INLINE void ED_MarkForTest (ExprDesc* Expr)
+/* Mark the expression for a test. */
+{
+ Expr->Flags |= E_NEED_TEST;
+}
+#else
+# define ED_MarkForTest(Expr) do { (Expr)->Flags |= E_NEED_TEST; } while (0)
+#endif
+
+#if defined(HAVE_INLINE)
+INLINE int ED_NeedsTest (const ExprDesc* Expr)
+/* Check if the expression needs a test. */
+{
+ return (Expr->Flags & E_NEED_TEST) != 0;
+}
+#else
+# define ED_NeedsTest(Expr) (((Expr)->Flags & E_NEED_TEST) != 0)
+#endif
+
+#if defined(HAVE_INLINE)
+INLINE void ED_TestDone (ExprDesc* Expr)
+/* Mark the expression as tested and condition codes set. */
+{
+ Expr->Flags = (Expr->Flags & ~E_NEED_TEST) | E_CC_SET;
+}
+#else
+# define ED_TestDone(Expr) \
+ do { (Expr)->Flags = ((Expr)->Flags & ~E_NEED_TEST) | E_CC_SET; } while (0)
+#endif
+
+#if defined(HAVE_INLINE)
+INLINE int ED_IsTested (const ExprDesc* Expr)
+/* Check if the expression has set the condition codes. */
+{
+ return (Expr->Flags & E_CC_SET) != 0;
+}
+#else
+# define ED_IsTested(Expr) (((Expr)->Flags & E_CC_SET) != 0)
+#endif
+
+#if defined(HAVE_INLINE)
+INLINE void ED_MarkAsUntested (ExprDesc* Expr)
+/* Mark the expression as not tested (condition codes not set). */
+{
+ Expr->Flags &= ~E_CC_SET;
+}
+#else
+# define ED_MarkAsUntested(Expr) do { (Expr)->Flags &= ~E_CC_SET; } while (0)
+#endif
+
+void ED_SetCodeRange (ExprDesc* Expr, const CodeMark* Start, const CodeMark* End);
+/* Set the code range for this expression */
+
+int ED_CodeRangeIsEmpty (const ExprDesc* Expr);
+/* Return true if no code was output for this expression */
+
const char* ED_GetLabelName (const ExprDesc* Expr, long Offs);
/* Return the assembler label name of the given expression. Beware: This
* function may use a static buffer, so the name may get "lost" on the second
* an additional offset in Offs.
*/
-ExprDesc* ED_MakeConstAbs (ExprDesc* Expr, long Value, type* Type);
+ExprDesc* ED_MakeConstAbs (ExprDesc* Expr, long Value, Type* Type);
/* Make Expr an absolute const with the given value and type. */
ExprDesc* ED_MakeConstAbsInt (ExprDesc* Expr, long Value);
* similar.
*/
-int ED_IsConstAbs (const ExprDesc* Expr);
+#if defined(HAVE_INLINE)
+INLINE int ED_IsConstAbs (const ExprDesc* Expr)
/* Return true if the expression denotes a constant absolute value. This can be
* a numeric constant, cast to any type.
*/
+{
+ return (Expr->Flags & (E_MASK_LOC|E_MASK_RTYPE)) == (E_LOC_ABS|E_RTYPE_RVAL);
+}
+#else
+# define ED_IsConstAbs(E) \
+ (((E)->Flags & (E_MASK_LOC|E_MASK_RTYPE)) == (E_LOC_ABS|E_RTYPE_RVAL))
+#endif
int ED_IsConstAbsInt (const ExprDesc* Expr);
/* Return true if the expression is a constant (numeric) integer. */
void PrintExprDesc (FILE* F, ExprDesc* Expr);
/* Print an ExprDesc */
-type* ReplaceType (ExprDesc* Expr, const type* NewType);
+Type* ReplaceType (ExprDesc* Expr, const Type* NewType);
/* Replace the type of Expr by a copy of Newtype and return the old type string */