-/* 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.
+ */