aboutsummaryrefslogtreecommitdiff
path: root/core/bgdc/src/procedure.c
blob: 09ca82991d75bbfb9f6d2fd92b281386c4903a24 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
/*
 *  Copyright � 2006-2016 SplinterGU (Fenix/Bennugd)
 *  Copyright � 2002-2006 Fenix Team (Fenix)
 *  Copyright � 1999-2002 Jos� Luis Cebri�n Pag�e (Fenix)
 *
 *  This file is part of Bennu - Game Development
 *
 *  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.
 *
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef TARGET_BEOS
#include <posix/assert.h>
#else
#include <assert.h>
#endif

#include "bgdc.h"

/* ---------------------------------------------------------------------- */
/* Gestor de procesos y bloques de c�digo. Este m�dulo contiene funciones */
/* de utilidad para crear procesos y bloques de c�digo as� como otras que */
/* se emplean durante y despu�s del compilado.                            */
/* ---------------------------------------------------------------------- */

PROCDEF * mainproc = 0 ;
int procdef_count = 0 ;

int procdef_maxid = -1 ;
PROCDEF ** procs = 0 ;
int procs_allocated = 0 ;

int procdef_getid()
{
    return ++procdef_maxid ;
}

PROCDEF * procdef_new (int typeid, int id)
{
    PROCDEF * proc = (PROCDEF *) calloc (1, sizeof(PROCDEF)) ;
    int n ;

    if (!proc)
    {
        fprintf (stdout, "procdef_new: out of memory\n") ;
        exit (1) ;
    }

    proc->pridata = segment_new() ;
    proc->privars = varspace_new() ;

    /* (2006/11/19 23:15 GMT-03:00, Splinter - jj_arg@yahoo.com) */
    proc->pubdata = segment_new() ;
    proc->pubvars = varspace_new() ;
    /* (2006/11/19 23:15 GMT-03:00, Splinter - jj_arg@yahoo.com) */

    proc->params    = -1 ;
    proc->defined   = 0 ;
    proc->declared  = 0 ;
    proc->type      = TYPE_DWORD ;
    proc->flags     = 0 ;
    proc->imported  = 0 ;

    proc->sentence_count = 0 ;
    proc->sentences      = 0 ;

    if (typeid >= procs_allocated)
    {
        procs_allocated = typeid + 15 ;
        procs = (PROCDEF **) realloc (procs, sizeof(PROCDEF **) * procs_allocated) ;
        if (!procs)
        {
            fprintf (stdout, "procdef_new: out of memory\n") ;
            exit (1) ;
        }
    }
    proc->typeid     = typeid ;
    proc->identifier = id ;
    procs[typeid]    = proc ;

    for (n = 0 ; n < MAX_PARAMS ; n++)
        proc->paramtype[n] = TYPE_UNDEFINED ;

    proc->exitcode  = 0 ;
    proc->errorcode = 0 ;

    codeblock_init (&proc->code) ;
    procdef_count++ ;
    return proc ;
}

PROCDEF * procdef_search (int id)
{
    int n ;

    for (n = 0 ; n <= procdef_maxid; n++)
        if (procs[n]->identifier == id) return procs[n] ;

    return 0 ;
}

PROCDEF * procdef_search_by_codeblock (CODEBLOCK * p)
{
    int n ;

    for (n = 0 ; n <= procdef_maxid; n++)
        if (&procs[n]->code == p) return procs[n] ;

    return 0 ;
}

PROCDEF * procdef_get (int typeid)
{
    return procs_allocated > typeid ? procs[typeid] : 0 ;
}

void procdef_destroy (PROCDEF * proc)
{
    varspace_destroy (proc->privars) ;
    segment_destroy  (proc->pridata) ;

    /* (2006/11/20 01:09 GMT-03:00, Splinter - jj_arg@yahoo.com) */
    varspace_destroy (proc->pubvars);
    segment_destroy  (proc->pubdata) ;

    procs[proc->typeid] = 0 ;
    free (proc->code.data) ;
    free (proc->code.loops) ;
    free (proc->code.labels) ;
    free (proc) ;

    procdef_count-- ;
}


/* Realiza acciones posteriores al compilado sobre el c�digo:
 * - Convierte saltos de c�digo de etiqueta a offset
 * - Convierte identificador de procesos en CALL o TYPE a typeid */

void program_postprocess ()
{
    int n ;
    for (n = 0; n <= procdef_maxid; n++) codeblock_postprocess (&procs[n]->code) ;
}

void program_dumpprocesses()
{
    int n;
    for (n = 0; n <= procdef_maxid; n++) procdef_dump( procs[n] );
}

void procdef_dump( PROCDEF * proc )
{
    printf( "\n\n---------- Process %d (%s)\n\n", proc->typeid, identifier_name( proc->identifier ) ) ;

    if ( proc->privars->count )
    {
        printf( "---- Private variables\n" ) ;
        varspace_dump( proc->privars, 0 ) ;
        printf( "\n" ) ;
    }

    if ( proc->pubvars->count )
    {
        printf( "---- Public variables\n" ) ;
        varspace_dump( proc->pubvars, 0 ) ;
        printf( "\n" ) ;
    }

    /* segment_dump  (proc->pridata) ; */
    codeblock_dump( &proc->code ) ;
}