1 /*****************************************************************************/
5 /* Effective address parsing for the ca65 macroassembler */
9 /* (C) 1998-2003 Ullrich von Bassewitz */
10 /* Römerstrasse 52 */
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 /*****************************************************************************/
41 /*****************************************************************************/
43 /*****************************************************************************/
47 /* GetEA result struct */
48 typedef struct EffAddr EffAddr;
50 /* First three fields get filled when calling GetEA */
51 unsigned long AddrModeSet; /* Possible addressing modes */
52 struct ExprNode* Expr; /* Expression if any (NULL otherwise) */
54 /* The following fields are used inside instr.c */
55 unsigned AddrMode; /* Actual addressing mode used */
56 unsigned long AddrModeBit; /* Addressing mode as bit mask */
57 unsigned char Opcode; /* Opcode */
62 /*****************************************************************************/
64 /*****************************************************************************/
68 void GetEA (EffAddr* A);
69 /* Parse an effective address, return the result in A */