+/* cc65 */
#include "datatype.h"
+#include "exprdesc.h"
/*****************************************************************************/
-/* data */
+/* code */
/*****************************************************************************/
-/* Defines for the flags field of the expression descriptor */
-#define E_MREG 0x0110U /* Special: Expression is primary register */
-#define E_MGLOBAL 0x0080U /* Reference to static variable */
-#define E_MLOCAL 0x0040U /* Reference to local variable (stack offset) */
-#define E_MCONST 0x0020U /* Constant value */
-#define E_MEXPR 0x0010U /* Result is in primary register */
-#define E_MEOFFS 0x0011U /* Base is in primary register, const offset */
-
-#define E_MCTYPE 0x0007U /* Type of a constant */
-#define E_TCONST 0x0000U /* Constant */
-#define E_TGLAB 0x0001U /* Global label */
-#define E_TLIT 0x0002U /* Literal of some kind */
-#define E_TLOFFS 0x0003U /* Constant stack offset */
-#define E_TLLAB 0x0004U /* Local label */
-#define E_TREGISTER 0x0005U /* Register variable */
-
-/* Defines for the test field of the expression descriptor */
-#define E_CC 0x0001U /* expr has set cond codes apropos result value */
-#define E_FORCETEST 0x0002U /* if expr has NOT set CC, force a test */
-
-/* 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 ConstVal;/* Value if expression constant */
- unsigned short Flags;
- unsigned short Test; /* */
- unsigned long Name; /* Name or label number */
-};
-
-
-
-/*****************************************************************************/
-/* code */
-/*****************************************************************************/
-
-
+void PushAddr (ExprDesc* lval);
+/* If the expression contains an address that was somehow evaluated,
+ * push this address on the stack. This is a helper function for all
+ * sorts of implicit or explicit assignment functions where the lvalue
+ * must be saved if it's not constant, before evaluating the rhs.
+ */
void ConstSubExpr (int (*F) (ExprDesc*), ExprDesc* Expr);
/* Will evaluate an expression via the given function. If the result is not
* from this input error.
*/
+void CheckBoolExpr (ExprDesc* lval);
+/* Check if the given expression is a boolean expression, output a diagnostic
+ * if not.
+ */
+
unsigned assignadjust (type* lhst, ExprDesc* rhs);
/* Adjust the type of the right hand expression so that it can be assigned to
* the type on the left hand side. This function is used for assignment and
void exprhs (unsigned flags, int k, ExprDesc *lval);
/* Put the result of an expression into the primary register */
+void Store (ExprDesc* lval, const type* StoreType);
+/* Store the primary register into the location denoted by lval. If StoreType
+ * is given, use this type when storing instead of lval->Type. If StoreType
+ * is NULL, use lval->Type instead.
+ */
+
void expression1 (ExprDesc* lval);
/* Evaluate an expression on level 1 (no comma operator) and put it into
* the primary register
void intexpr (ExprDesc* lval);
/* Get an integer expression */
-void boolexpr (ExprDesc* lval);
-/* Get a boolean expression */
-
-void test (unsigned label, int cond);
-/* Generate code to perform test and jump if false. */
-
int hie10 (ExprDesc* lval);
/* Handle ++, --, !, unary - etc. */
int hie1 (ExprDesc* lval);
/* Parse first level of expression hierarchy. */
-int hie0 (ExprDesc* lval);
-/* Parse comma operator (highest level of expression hierarchy) */
-
void DefineData (ExprDesc* lval);
/* Output a data definition for the given expression */
+void Test (unsigned Label, int Invert);
+/* Evaluate a boolean test expression and jump depending on the result of
+ * the test and on Invert.
+ */
+
+void TestInParens (unsigned Label, int Invert);
+/* Evaluate a boolean test expression in parenthesis and jump depending on
+ * the result of the test * and on Invert.
+ */
+
/* End of expr.h */