amxmodx/compiler/scasm/amx_data.cpp
David Anderson b706108ed6 Squashed commit of the following:
commit 011d9b6b07d904ad1e81ef7c747269903e2d47c4
Author: David Anderson <dvander@alliedmods.net>
Date:   Mon Jan 11 00:17:08 2010 -0600

    Initial import from Subversion (amxmodx/trunk rev 3757).
2014-02-06 23:06:54 -08:00

197 lines
3.8 KiB
C++
Executable File

/* AMX Assembler
* Copyright (C)2004 David "BAILOPAN" Anderson
*
* This software is provided 'as-is', without any express 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.
*
* Version: $Id: amx_data.cpp 828 2004-08-11 14:31:26Z dvander $
*/
#include "amxasm.h"
DataMngr::~DataMngr()
{
Clear();
}
void DataMngr::Clear()
{
std::vector<DataMngr::Datum *>::iterator i;
for (i=List.begin(); i!=List.end(); i++)
{
if ( (*i) )
delete (*i);
}
List.clear();
}
DataMngr::Datum::Datum()
{
db = false;
offset = -1;
fill = 0;
zeroed = false;
}
void DataMngr::Add(std::string &s, CExpr &expr, bool db, int fill)
{
DataMngr::Datum *D = new DataMngr::Datum();
D->symbol.assign(s);
D->e = expr;
D->fill = fill;
D->db = db;
int size = 0;
if (db)
{
size = ((D->e.GetType() == Val_Number) ?
cellsize : D->e.Size() * cellsize);
} else {
size = (D->e.GetNumber() * cellsize);
}
if (List.size() == 0)
{
D->offset = 0;
} else {
DataMngr::Datum *p = List[List.size()-1];
if (p->db)
{
D->offset = p->offset +
((p->e.GetType() == Val_Number) ?
cellsize : p->e.Size() * cellsize);
} else {
D->offset = p->offset + (p->e.GetNumber() * cellsize);
}
}
cursize += size;
List.push_back(D);
}
DataMngr::Datum *DataMngr::FindData(std::string &sym)
{
std::vector<DataMngr::Datum *>::iterator i;
for (i=List.begin(); i!=List.end(); i++)
{
if ((*i)->symbol.compare(sym) == 0)
{
return (*i);
}
}
return NULL;
}
int DataMngr::GetOffset(std::string &sym)
{
DataMngr::Datum *D = NULL;
D = FindData(sym);
if (D == NULL)
return DataMngr::nof;
return D->offset;
}
int DataMngr::GetSize()
{
return cursize;
}
void DataMngr::GetData(std::vector<DataMngr::Datum *> &dList)
{
std::vector<DataMngr::Datum *>::iterator i;
for (i=List.begin(); i!=List.end(); i++)
{
dList.push_back( (*i) );
}
}
void DataMngr::PrintTable()
{
std::vector<DataMngr::Datum *>::iterator i;
DataMngr::Datum *p = 0;
printf("Symbol\tSize\n");
for (i=List.begin(); i!=List.end(); i++)
{
p = (*i);
printf("%s\t%d\n", p->symbol.c_str(), p->offset);
}
}
//Rewrite the DAT section so empties are at the end
void DataMngr::Optimize()
{
std::vector<DataMngr::Datum *> DbList;
std::vector<DataMngr::Datum *> MtList;
std::vector<DataMngr::Datum *>::iterator i;
for (i=List.begin(); i!=List.end(); i++)
{
if ( (*i)->db )
{
DbList.push_back( (*i) );
} else if ( (*i)->fill == 0 ) {
MtList.push_back( (*i) );
} else {
DbList.push_back( (*i) );
}
}
List.clear();
lastOffset = 0;
cursize = 0;
int size = 0;
for (i=DbList.begin(); i!=DbList.end(); i++)
{
size = (( (*i)->e.GetType() == Val_Number
|| (*i)->e.GetType() == Val_Float ) ?
cellsize : (*i)->e.Size() * cellsize);
(*i)->offset = lastOffset;
lastOffset += size;
(*i)->zeroed = false;
List.push_back( (*i) );
}
cursize = lastOffset;
DbList.clear();
for (i=MtList.begin(); i!=MtList.end(); i++)
{
size = ( (*i)->e.GetNumber() * cellsize );
(*i)->offset = lastOffset;
lastOffset += size;
(*i)->zeroed = true;
List.push_back( (*i) );
}
MtList.clear();
optimized = true;
}