1/*****************************************************************************/
2/* */
3/* addrsize.c */
4/* */
5/* Address size definitions */
6/* */
7/* */
8/* */
9/* (C) 2003-2009, Ullrich von Bassewitz */
10/* Roemerstrasse 52 */
11/* D-70794 Filderstadt */
12/* EMail: uz@cc65.org */
13/* */
14/* */
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. */
18/* */
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: */
22/* */
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 */
30/* distribution. */
31/* */
32/*****************************************************************************/
33
34
35
36/* common */
37#include "addrsize.h"
38#include "strutil.h"
39
40
41
42/*****************************************************************************/
43/* Code */
44/*****************************************************************************/
45
46
47
48const char* AddrSizeToStr (unsigned char AddrSize)
49/* Return the name for an address size specifier */
50{
51 switch (AddrSize) {
52 case ADDR_SIZE_DEFAULT: return "default";
53 case ADDR_SIZE_ZP: return "zeropage";
54 case ADDR_SIZE_ABS: return "absolute";
55 case ADDR_SIZE_FAR: return "far";
56 case ADDR_SIZE_LONG: return "long";
57 default: return "unknown";
58 }
59}
60
61
62
63unsigned char AddrSizeFromStr (const char* Str)
64/* Return the address size for a given string. Returns ADDR_SIZE_INVALID if
65** the string cannot be mapped to an address size.
66*/
67{
68 static const struct {
69 const char* Name;
70 unsigned char AddrSize;
71 } AddrSizeTable[] = {
72 { "abs", ADDR_SIZE_ABS },
73 { "absolute", ADDR_SIZE_ABS },
74 { "default", ADDR_SIZE_DEFAULT },
75 { "direct", ADDR_SIZE_ZP },
76 { "dword", ADDR_SIZE_LONG },
77 { "far", ADDR_SIZE_FAR },
78 { "long", ADDR_SIZE_LONG },
79 { "near", ADDR_SIZE_ABS },
80 { "zeropage", ADDR_SIZE_ZP },
81 { "zp", ADDR_SIZE_ZP },
82 };
83 unsigned I;
84
85 for (I = 0; I < sizeof (AddrSizeTable) / sizeof (AddrSizeTable[0]); ++I) {
86 if (StrCaseCmp (Str, AddrSizeTable[I].Name) == 0) {
87 /* Found */
88 return AddrSizeTable[I].AddrSize;
89 }
90 }
91
92 /* Not found */
93 return ADDR_SIZE_INVALID;
94}
95