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git-svn-id: svn://svn.cc65.org/cc65/trunk@2110 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
2003-05-01 22:38:47 +00:00
parent 2a5fbd00ef
commit 8fb90af8ff
20 changed files with 653 additions and 187 deletions
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src/sim65/location.c Normal file
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/*****************************************************************************/
/* */
/* location.c */
/* */
/* Memory location description */
/* */
/* */
/* */
/* (C) 2003 Ullrich von Bassewitz */
/* R<>merstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
/* common.h */
#include "coll.h"
#include "xmalloc.h"
/* sim65 */
#include "cfgdata.h"
#include "error.h"
#include "scanner.h"
#include "location.h"
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* List of all memory locations */
Collection Locations = STATIC_COLLECTION_INITIALIZER;
/*****************************************************************************/
/* Code */
/*****************************************************************************/
Location* NewLocation (unsigned long Start, unsigned long End)
/* Create a new location, initialize and return it */
{
/* Allocate memory */
Location* L = xmalloc (sizeof (Location));
/* Initialize the fields */
L->Start = Start;
L->End = End;
L->Attributes = EmptyCollection;
L->Line = CfgErrorLine;
L->Col = CfgErrorCol;
/* Return the new struct */
return L;
}
static int CmpLocations (void* Data attribute ((unused)),
const void* lhs, const void* rhs)
/* Compare function for CollSort */
{
/* Cast the object pointers */
const Location* Left = (const Location*) rhs;
const Location* Right = (const Location*) lhs;
/* Do the compare */
if (Left->Start < Right->Start) {
return 1;
} else if (Left->Start > Right->Start) {
return -1;
} else {
return 0;
}
}
int LocationGetAttr (const Location* L, const char* AttrName)
/* Find the attribute with the given name and return it. Call Error() if the
* attribute was not found.
*/
{
int I = CfgDataFind (&L->Attributes, AttrName);
if (I < 0) {
Error ("%s(%u): Attribute `%s' missing", CfgGetName(), L->Line, AttrName);
}
return I;
}
int LocationIsMirror (const Location* L)
/* Return true if the given location is a mirror of another one. */
{
/* Find the "mirror" attribute */
return (CfgDataFind (&L->Attributes, "mirror") >= 0);
}
void LocationSort (Collection* Locations)
/* Sort all locations by address */
{
/* Sort all memory locations */
CollSort (Locations, CmpLocations, 0);
}
void LocationCheck (const Collection* Locations)
/* Check all locations for problems */
{
unsigned I;
/* Check for overlaps and other problems */
const Location* Last = 0;
for (I = 0; I < CollCount (Locations); ++I) {
/* Get this location */
const Location* L = CollConstAt (Locations, I);
/* Check for an overlap with the following location */
if (Last && Last->End >= L->Start) {
Error ("%s(%u): Address range overlap (overlapping entry is in line %u)",
CfgGetName(), L->Line, Last->Line);
}
/* If the location is a mirror, it must not have other attributes,
* and the mirror attribute must be an integer.
*/
if (LocationIsMirror (L)) {
const CfgData* D;
if (CollCount (&L->Attributes) > 1) {
Error ("%s(%u): Location at address $%06X is a mirror "
"but has attributes", CfgGetName(), L->Line, L->Start);
}
D = CollConstAt (&L->Attributes, 0);
CfgDataCheckType (D, CfgDataNumber);
}
/* Remember this entry */
Last = L;
}
}