1 /*****************************************************************************/
9 /* (C) 2003 Ullrich von Bassewitz */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
51 /*****************************************************************************/
53 /*****************************************************************************/
58 /* Handle the .ENUM command */
62 ExprNode* BaseExpr = GenLiteralExpr (0);
64 /* Check for a name */
65 int Anon = (Tok != TOK_IDENT);
67 /* Enter a new scope, then skip the name */
68 SymEnterLevel (SVal, ST_ENUM, ADDR_SIZE_ABS);
72 /* Test for end of line */
75 /* Read until end of struct */
76 while (Tok != TOK_ENDENUM && Tok != TOK_EOF) {
81 /* Skip empty lines */
87 /* The format is "identifier [ = value ]" */
88 if (Tok != TOK_IDENT) {
89 /* Maybe it's a conditional? */
90 if (!CheckConditionals ()) {
91 ErrorSkip ("Identifier expected");
96 /* We have an identifier, generate a symbol */
97 Sym = SymFind (CurrentScope, SVal, SYM_ALLOC_NEW);
99 /* Skip the member name */
102 /* Check for an assignment */
105 /* Skip the equal sign */
108 /* Read the new expression */
109 EnumExpr = Expression ();
111 /* Reset the base expression and the offset */
113 BaseExpr = CloneExpr (EnumExpr);
118 /* No assignment, use last value + 1 */
119 EnumExpr = GenAddExpr (CloneExpr (BaseExpr), GenLiteralExpr (Offs));
123 /* Assign the value to the enum member */
124 SymDef (Sym, EnumExpr, ADDR_SIZE_DEFAULT, SF_NONE);
126 /* Increment the offset for the next member */
129 /* Expect end of line */
133 /* If this is not an anon enum, leave its scope */
135 /* Close the enum scope */
139 /* End of enum definition */
140 Consume (TOK_ENDENUM, "`.ENDENUM' expected");
142 /* Free the base expression */