From: Michel Pollet <buserror@gmail.com>
Date: Thu, 2 Mar 2017 17:03:00 +0000 (+0000)
Subject: Added sim_utils.c/h
X-Git-Tag: v1.6~48^2~9^2~3
X-Git-Url: https://git.htl-mechatronik.at/public/?a=commitdiff_plain;h=e2e31d1ae34fe4cdcc97be98a4bc2f35a9cd2037;p=sx%2Fsimavr.git

Added sim_utils.c/h

Contains my string stripper utility. Used by the VCD input module

Signed-off-by: Michel Pollet <buserror@gmail.com>
---

diff --git a/simavr/sim/sim_utils.c b/simavr/sim/sim_utils.c
new file mode 100644
index 0000000..eeb4986
--- /dev/null
+++ b/simavr/sim/sim_utils.c
@@ -0,0 +1,68 @@
+/*
+	sim_utils.c
+
+	Implements a Value Change Dump file outout to generate
+	traces & curves and display them in gtkwave.
+
+	Copyright 2008, 2009 Michel Pollet <buserror@gmail.com>
+
+ 	This file is part of simavr.
+
+	simavr 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 3 of the License, or
+	(at your option) any later version.
+
+	simavr 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 simavr.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string.h>
+#include <stdlib.h>
+
+#include "sim_utils.h"
+
+static argv_p
+argv_realloc(
+	argv_p	argv,
+	uint32_t size )
+{
+	argv = realloc(argv,
+				sizeof(argv_t) + (size * sizeof(argv->argv[0])));
+	argv->size = size;
+	return argv;
+}
+
+argv_p
+argv_parse(
+	argv_p	argv,
+	char * line )
+{
+	if (!argv)
+		argv = argv_realloc(argv, 8);
+	argv->argc = 0;
+
+	/* strip end of lines and trailing spaces */
+	char *d = line + strlen(line);
+	while ((d - line) > 0 && *(--d) <= ' ')
+		*d = 0;
+	/* stop spaces + tabs */
+	char *s = line;
+	while (*s && *s <= ' ')
+		s++;
+	argv->line = s;
+	char * a = NULL;
+	do {
+		if (argv->argc == argv->size)
+			argv = argv_realloc(argv, argv->size + 8);
+		if ((a = strsep(&s, " \t")) != NULL)
+			argv->argv[argv->argc++] = a;
+	} while (a);
+	argv->argv[argv->argc] = NULL;
+	return argv;
+}
diff --git a/simavr/sim/sim_utils.h b/simavr/sim/sim_utils.h
new file mode 100644
index 0000000..44cb2c5
--- /dev/null
+++ b/simavr/sim/sim_utils.h
@@ -0,0 +1,51 @@
+/*
+	sim_utils.h
+
+	Implements a Value Change Dump file outout to generate
+	traces & curves and display them in gtkwave.
+
+	Copyright 2008, 2009 Michel Pollet <buserror@gmail.com>
+
+ 	This file is part of simavr.
+
+	simavr 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 3 of the License, or
+	(at your option) any later version.
+
+	simavr 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 simavr.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __SIM_UTILS_H__
+#define __SIM_UTILS_H__
+
+#include <stdint.h>
+
+typedef struct argv_t {
+	uint32_t size, argc;
+	char * line;
+	char * argv[];
+} argv_t, *argv_p;
+
+/*
+ * Allocate a argv_t structure, split 'line' into words (destructively)
+ * and fills up argc, and argv fields with pointers to the individual
+ * words. The line is stripped of any \r\n as well
+ * You can pass an already allocated argv_t for it to be reused (and
+ * grown to fit).
+ *
+ * You are still responsible, as the caller, to (free) the resulting
+ * pointer, and the 'line' text, if appropriate, no duplication is made
+ */
+argv_p
+argv_parse(
+	argv_p	argv,
+	char * line );
+
+#endif /* __SIM_UTILS_H__ */