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-rw-r--r--sim/igen/lf.c418
1 files changed, 418 insertions, 0 deletions
diff --git a/sim/igen/lf.c b/sim/igen/lf.c
new file mode 100644
index 00000000000..1b4a5f136ec
--- /dev/null
+++ b/sim/igen/lf.c
@@ -0,0 +1,418 @@
+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+
+ 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 02111-1307, USA.
+
+ */
+
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <ctype.h>
+
+#include "config.h"
+#include "misc.h"
+#include "lf.h"
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+
+struct _lf {
+ FILE *stream;
+ int line_nr; /* nr complete lines written, curr line is line_nr+1 */
+ int indent;
+ int line_blank;
+ const char *name;
+ const char *program;
+ lf_file_references references;
+ lf_file_type type;
+};
+
+
+lf *
+lf_open (char *name,
+ char *real_name,
+ lf_file_references references,
+ lf_file_type type,
+ const char *program)
+{
+ /* create a file object */
+ lf *new_lf = ZALLOC(lf);
+ ASSERT (new_lf != NULL);
+ new_lf->references = references;
+ new_lf->type = type;
+ new_lf->name = (real_name == NULL ? name : real_name);
+ new_lf->program = program;
+ /* attach to stdout if pipe */
+ if (!strcmp(name, "-")) {
+ new_lf->stream = stdout;
+ }
+ else {
+ /* create a new file */
+ new_lf->stream = fopen(name, "w");
+ if (new_lf->stream == NULL) {
+ perror(name);
+ exit(1);
+ }
+ }
+ return new_lf;
+}
+
+
+void
+lf_close(lf *file)
+{
+ if (file->stream != stdout) {
+ if (fclose(file->stream)) {
+ perror("lf_close.fclose");
+ exit(1);
+ }
+ free(file);
+ }
+}
+
+
+int
+lf_putchr(lf *file,
+ const char chr)
+{
+ int nr = 0;
+ if (chr == '\n') {
+ file->line_nr += 1;
+ file->line_blank = 1;
+ }
+ else if (file->line_blank) {
+ int pad;
+ for (pad = file->indent; pad > 0; pad--)
+ putc(' ', file->stream);
+ nr += file->indent;
+ file->line_blank = 0;
+ }
+ putc(chr, file->stream);
+ nr += 1;
+ return nr;
+}
+
+int
+lf_write (lf *file,
+ const char *string,
+ int strlen_string)
+{
+ int nr = 0;
+ int i;
+ for (i = 0; i < strlen_string; i++)
+ nr += lf_putchr (file, string[i]);
+ return nr;
+}
+
+
+void
+lf_indent_suppress(lf *file)
+{
+ file->line_blank = 0;
+}
+
+
+int
+lf_putstr(lf *file,
+ const char *string)
+{
+ int nr = 0;
+ const char *chp;
+ if (string != NULL) {
+ for (chp = string; *chp != '\0'; chp++) {
+ nr += lf_putchr(file, *chp);
+ }
+ }
+ return nr;
+}
+
+static int
+do_lf_putunsigned(lf *file,
+ unsigned u)
+{
+ int nr = 0;
+ if (u > 0) {
+ nr += do_lf_putunsigned(file, u / 10);
+ nr += lf_putchr(file, (u % 10) + '0');
+ }
+ return nr;
+}
+
+
+int
+lf_putint(lf *file,
+ int decimal)
+{
+ int nr = 0;
+ if (decimal == 0)
+ nr += lf_putchr(file, '0');
+ else if (decimal < 0) {
+ nr += lf_putchr(file, '-');
+ nr += do_lf_putunsigned(file, -decimal);
+ }
+ else if (decimal > 0) {
+ nr += do_lf_putunsigned(file, decimal);
+ }
+ else
+ ASSERT(0);
+ return nr;
+}
+
+
+int
+lf_printf (lf *file,
+ const char *fmt,
+ ...)
+{
+ int nr = 0;
+ char buf[1024];
+ va_list ap;
+
+ va_start (ap, fmt);
+ vsprintf (buf, fmt, ap);
+ /* FIXME - this is really stuffed but so is vsprintf() on a sun! */
+ ASSERT (strlen (buf) < sizeof (buf));
+ nr += lf_putstr (file, buf);
+ va_end(ap);
+ return nr;
+}
+
+
+int
+lf_print__line_ref (lf *file,
+ line_ref *line)
+{
+ return lf_print__external_ref (file, line->line_nr, line->file_name);
+}
+
+int
+lf_print__external_ref (lf *file,
+ int line_nr,
+ const char *file_name)
+{
+ int nr = 0;
+ switch (file->references)
+ {
+ case lf_include_references:
+ lf_indent_suppress(file);
+ nr += lf_putstr (file, "#line ");
+ nr += lf_putint (file, line_nr);
+ nr += lf_putstr (file, " \"");
+ nr += lf_putstr (file, file_name);
+ nr += lf_putstr (file, "\"\n");
+ break;
+ case lf_omit_references:
+ nr += lf_putstr (file, "/* ");
+ nr += lf_putstr (file, file_name);
+ nr += lf_putstr (file, ":");
+ nr += lf_putint (file, line_nr);
+ nr += lf_putstr (file, "*/\n");
+ break;
+ }
+ return nr;
+}
+
+int
+lf_print__internal_ref (lf *file)
+{
+ int nr = 0;
+ nr += lf_print__external_ref (file, file->line_nr+2, file->name);
+ /* line_nr == last_line, want to number from next */
+ return nr;
+}
+
+void
+lf_indent (lf *file, int delta)
+{
+ file->indent += delta;
+}
+
+
+int
+lf_print__gnu_copyleft (lf *file)
+{
+ int nr = 0;
+ switch (file->type) {
+ case lf_is_c:
+ case lf_is_h:
+ nr += lf_printf(file, "\
+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
+
+ 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 02111-1307, USA.
+
+ --
+
+ This file was generated by the program %s */
+", filter_filename(file->program));
+ break;
+ default:
+ ASSERT(0);
+ break;
+ }
+ return nr;
+}
+
+
+int
+lf_putbin(lf *file, int decimal, int width)
+{
+ int nr = 0;
+ int bit;
+ ASSERT(width > 0);
+ for (bit = 1 << (width-1); bit != 0; bit >>= 1) {
+ if (decimal & bit)
+ nr += lf_putchr(file, '1');
+ else
+ nr += lf_putchr(file, '0');
+ }
+ return nr;
+}
+
+int
+lf_print__this_file_is_empty(lf *file,
+ const char *reason)
+{
+ int nr = 0;
+ switch (file->type) {
+ case lf_is_c:
+ case lf_is_h:
+ nr += lf_printf (file,
+ "/* This generated file (%s) is intentionally left blank",
+ file->name);
+ if (reason != NULL)
+ nr += lf_printf (file, " - %s", reason);
+ nr += lf_printf (file, " */\n");
+ break;
+ default:
+ ERROR ("Bad switch");
+ }
+ return nr;
+}
+
+int
+lf_print__ucase_filename(lf *file)
+{
+ int nr = 0;
+ const char *chp = file->name;
+ while (*chp != '\0') {
+ char ch = *chp;
+ if (islower(ch)) {
+ nr += lf_putchr(file, toupper(ch));
+ }
+ else if (ch == '.')
+ nr += lf_putchr(file, '_');
+ else
+ nr += lf_putchr(file, ch);
+ chp++;
+ }
+ return nr;
+}
+
+int
+lf_print__file_start(lf *file)
+{
+ int nr = 0;
+ switch (file->type) {
+ case lf_is_h:
+ case lf_is_c:
+ nr += lf_print__gnu_copyleft(file);
+ nr += lf_printf(file, "\n");
+ nr += lf_printf(file, "#ifndef ");
+ nr += lf_print__ucase_filename(file);
+ nr += lf_printf(file, "\n");
+ nr += lf_printf(file, "#define ");
+ nr += lf_print__ucase_filename(file);
+ nr += lf_printf(file, "\n");
+ nr += lf_printf(file, "\n");
+ break;
+ default:
+ ASSERT(0);
+ }
+ return nr;
+}
+
+
+int
+lf_print__file_finish(lf *file)
+{
+ int nr = 0;
+ switch (file->type) {
+ case lf_is_h:
+ case lf_is_c:
+ nr += lf_printf(file, "\n");
+ nr += lf_printf(file, "#endif /* _");
+ nr += lf_print__ucase_filename(file);
+ nr += lf_printf(file, "_*/\n");
+ break;
+ default:
+ ASSERT(0);
+ }
+ return nr;
+}
+
+
+int
+lf_print__function_type (lf *file,
+ const char *type,
+ const char *prefix,
+ const char *trailing_space)
+{
+ int nr = 0;
+ nr += lf_printf (file, "%s\\\n(%s)", prefix, type);
+ if (trailing_space != NULL)
+ nr += lf_printf (file, "%s", trailing_space);
+ return nr;
+}
+
+int
+lf_print__function_type_function (lf *file,
+ print_function *print_type,
+ const char *prefix,
+ const char *trailing_space)
+{
+ int nr = 0;
+ nr += lf_printf (file, "%s\\\n(", prefix);
+ nr += print_type (file);
+ nr += lf_printf (file, ")");
+ if (trailing_space != NULL)
+ nr += lf_printf (file, "%s", trailing_space);
+ return nr;
+}
+
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