[go: up one dir, main page]

File: opcode.c

package info (click to toggle)
cook 2.10-1
  • links: PTS
  • area: main
  • in suites: potato
  • size: 6,856 kB
  • ctags: 3,842
  • sloc: ansic: 47,714; sh: 12,150; makefile: 4,317; yacc: 3,104; awk: 154
file content (153 lines) | stat: -rw-r--r-- 3,333 bytes parent folder | download | duplicates (5)
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
/*
 *	cook - file construction tool
 *	Copyright (C) 1997 Peter Miller;
 *	All rights reserved.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *	GNU General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions to manipulate opcodes
 */

#include <ac/stdio.h>

#include <opcode/private.h>
#include <mem.h>
#include <trace.h>


/*
 * NAME
 *	opcode_delete
 *
 * SYNOPSIS
 *	void opcode_delete(opcode_ty *);
 *
 * DESCRIPTION
 *	The opcode_delete function is used to release the resources held
 *	by an opcode.
 */

void
opcode_delete(op)
	opcode_ty	*op;
{
	trace(("opcode_delete(op = %08lX)\n{\n"/*}*/, (long)op));
	assert(op);
	assert(op->method);
	if (op->method->destructor)
		op->method->destructor(op);
	op->method = 0; /* paranoia */
	mem_free(op);
	trace((/*{*/"}\n"));
}


/*
 * NAME
 *	opcode_execute
 *
 * SYNOPSIS
 *	opcode_status_ty opcode_execute(opcode_ty *);
 *
 * DESCRIPTION
 *	The opcode_execute function is used to execute an opcode within
 *	the given execution context.
 *
 * RETURNS
 *	opcode_status_ty - indicating succes or failure
 */

opcode_status_ty
opcode_execute(op, icp)
	const opcode_ty	*op;
	struct opcode_context_ty *icp;
{
	opcode_status_ty status;

	trace(("opcode_execute(op = %08lX)\n{\n"/*}*/, (long)op));
	assert(op);
	assert(op->method);
	assert(op->method->execute);
	status = op->method->execute(op, icp);
	trace(("return %s;\n", opcode_status_name(status)));
	trace((/*{*/"}\n"));
	return status;
}


/*
 * NAME
 *	opcode_script
 *
 * SYNOPSIS
 *	opcode_status_ty opcode_script(opcode_ty *);
 *
 * DESCRIPTION
 *	The opcode_script function is used to script an opcode within
 *	the given execution context.
 *
 * RETURNS
 *	opcode_status_ty - indicating succes or failure
 */

opcode_status_ty
opcode_script(op, icp)
	const opcode_ty	*op;
	struct opcode_context_ty *icp;
{
	opcode_status_ty status;

	trace(("opcode_script(op = %08lX)\n{\n"/*}*/, (long)op));
	assert(op);
	assert(op->method);
	assert(op->method->script);
	status = op->method->script(op, icp);
	trace(("return %s;\n", opcode_status_name(status)));
	trace((/*{*/"}\n"));
	return status;
}


/*
 * NAME
 *	opcode_disassemble
 *
 * SYNOPSIS
 *	void opcode_disassemble(opcode_ty *);
 *
 * DESCRIPTION
 *	The opcode_disassemble function is used to print a textual
 *	representation of the opcode on the standard output.
 *
 * CAVEAT
 *	This is for debugging only, the command line option is not
 * 	documented.
 */

void
opcode_disassemble(op)
	const opcode_ty	*op;
{
	trace(("opcode_disassemble(op = %08lX)\n{\n"/*}*/, (long)op));
	assert(op);
	assert(op->method);
	printf("%s", op->method->name);
	if (op->method->disassemble)
	{
		printf("\t");
		op->method->disassemble(op);
	}
	trace((/*{*/"}\n"));
}