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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-12-02 17:34:08 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-12-02 17:34:08 +0000 |
commit | d128c03666021694c4d2d969061599014f6515c7 (patch) | |
tree | b633352664e92bd1dca221415ebc7fd984b51181 /nuttx/tools | |
parent | 3f5c10515649b6925d063ae6e4a1eb3ba0abd8e5 (diff) | |
download | px4-firmware-d128c03666021694c4d2d969061599014f6515c7.tar.gz px4-firmware-d128c03666021694c4d2d969061599014f6515c7.tar.bz2 px4-firmware-d128c03666021694c4d2d969061599014f6515c7.zip |
Fix the fat, flat line bug
git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5407 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/tools')
-rw-r--r-- | nuttx/tools/Makefile.host | 20 | ||||
-rw-r--r-- | nuttx/tools/b16.c | 121 | ||||
-rw-r--r-- | nuttx/tools/cfgparser.c | 2 |
3 files changed, 138 insertions, 5 deletions
diff --git a/nuttx/tools/Makefile.host b/nuttx/tools/Makefile.host index a661424dc..4a46901e6 100644 --- a/nuttx/tools/Makefile.host +++ b/nuttx/tools/Makefile.host @@ -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) diff --git a/nuttx/tools/b16.c b/nuttx/tools/b16.c new file mode 100644 index 000000000..66d581ffa --- /dev/null +++ b/nuttx/tools/b16.c @@ -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; +} diff --git a/nuttx/tools/cfgparser.c b/nuttx/tools/cfgparser.c index b1f189f6f..1a35f7857 100644 --- a/nuttx/tools/cfgparser.c +++ b/nuttx/tools/cfgparser.c @@ -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 |