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Fix the fat, flat line bug

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git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5407 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2012-12-02 17:34:08 +00:00
parent 3f5c105156
commit d128c03666
7 changed files with 443 additions and 106 deletions
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nuttx/tools/Makefile.host
+16 -4
View File
@@ -44,11 +44,14 @@ ifneq ($(CONFIG_WINDOWS_NATIVE),y)
HOSTCFLAGS += -D HAVE_STRTOK_C
endif
all: mkconfig$(HOSTEXEEXT) mkversion$(HOSTEXEEXT) mksyscall$(HOSTEXEEXT) bdf-converter$(HOSTEXEEXT) mksymtab$(HOSTEXEEXT) mkdeps$(HOSTEXEEXT)
all: b16$(HOSTEXEEXT) bdf-converter$(HOSTEXEEXT) cmpconfig$(HOSTEXEEXT) \
mkconfig$(HOSTEXEEXT) mkdeps$(HOSTEXEEXT) mksymtab$(HOSTEXEEXT) \
mksyscall$(HOSTEXEEXT) mkversion$(HOSTEXEEXT)
default: mkconfig$(HOSTEXEEXT) mksyscall$(HOSTEXEEXT) mkdeps$(HOSTEXEEXT)
ifdef HOSTEXEEXT
.PHONY: clean mkconfig mkversion mksyscall bdf-converter mksymtab mkdeps
.PHONY: b16 bdf-converter cmpconfig clean mkconfig mkdeps mksymtab \
mksyscall mkversion
else
.PHONY: clean
endif
@@ -58,6 +61,15 @@ endif
HOSTCFLAGS ?= -O2 -Wall -I.
HOSTCC ?= gcc
# b16 - Fixed precision math converstion tool
b16$(HOSTEXEEXT): b16.c
$(Q) $(HOSTCC) $(HOSTCFLAGS) -o b16$(HOSTEXEEXT) b16.c
ifdef HOSTEXEEXT
b16: b16$(HOSTEXEEXT)
endif
# mkconfig - Convert a .config file into a C config.h file
mkconfig$(HOSTEXEEXT): mkconfig.c cfgparser.c
@@ -69,8 +81,8 @@ endif
# cmpconfig - Compare the contents of two configuration files
cmpconfig: cmpconfig.c
$(Q) $(HOSTCC) $(HOSTCFLAGS) -o cmpconfig cmpconfig.c
cmpconfig$(HOSTEXEEXT): cmpconfig.c
$(Q) $(HOSTCC) $(HOSTCFLAGS) -o cmpconfig$(HOSTEXEEXT) cmpconfig.c
ifdef HOSTEXEEXT
cmpconfig: cmpconfig$(HOSTEXEEXT)
nuttx/tools/b16.c
+121
View File
@@ -0,0 +1,121 @@
/****************************************************************************
* tools/b16.c
*
* Copyright (C) 2007-2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
/****************************************************************************
* Private Functions
****************************************************************************/
static void show_usage(const char *progname)
{
fprintf(stderr, "\nUSAGE: %s <b16_t>|<float>\n", progname);
fprintf(stderr, "\nWhere:\n");
fprintf(stderr, " <b16_t>:\n");
fprintf(stderr, " A b16 fixed precision value in hexadecimal form: E.g., 0x00010000\n");
fprintf(stderr, " Any value begininning with '0' will assumed by be hexadecimal format\n");
fprintf(stderr, " <float>:\n");
fprintf(stderr, " A floating value in standard form: E.g., 5.1\n");
exit(EXIT_FAILURE);
}
/****************************************************************************
* Public Functions
****************************************************************************/
int main(int argc, char **argv, char **envp)
{
double fvalue;
unsigned long ulvalue;
long lvalue;
const char *str;
char *endptr;
/* There must be exactly one argument */
if (argc != 2)
{
fprintf(stderr, "\nExpected a single argument\n");
show_usage(argv[0]);
}
str = argv[1];
/* If the value begins with a zero, we will assume that it is a hexadecimal
* representation.
*/
if (str[0] == '0')
{
endptr = NULL;
ulvalue = strtoul(str, &endptr, 16);
if (!endptr || *endptr != '\0')
{
fprintf(stderr, "\nHexadecimal argument not fully converted\n");
show_usage(argv[0]);
}
if (ulvalue >= 0x80000000)
{
lvalue = ~ulvalue + 1;
}
else
{
lvalue = ulvalue;
}
fvalue = ((double)lvalue) / 65536.0;
printf("0x%08lx -> %10.5f\n", ulvalue, fvalue);
}
else
{
endptr = NULL;
fvalue = strtod(str, &endptr);
if (!endptr || *endptr != '\0')
{
fprintf(stderr, "\nFloating point argument not fully converted\n");
show_usage(argv[0]);
}
lvalue = 65536.0 * fvalue;
printf("%10.5f -> 0x%08lx\n", fvalue, lvalue);
}
return 0;
}
nuttx/tools/cfgparser.c
+1 -1
View File
@@ -2,7 +2,7 @@
* tools/cfgpaser.c
*
* Copyright (C) 2007-2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <>
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions