kc3-lang/kc3

diff --git a/math/Makefile b/math/Makefile
new file mode 100644
index 0000000..ffeaab9
--- /dev/null
+++ b/math/Makefile
@@ -0,0 +1,57 @@
+## c3
+## Copyright 2022,2023 kmx.io <contact@kmx.io>
+##
+## Permission is hereby granted to use this software granted the above
+## copyright notice and this permission paragraph are included in all
+## copies and substantial portions of this software.
+##
+## THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+## PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+## AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+## THIS SOFTWARE.
+
+PROG = circle
+
+CLEANFILES = *.a *.gcno *.la .libs *.lo *.o
+
+CLEANFILES_COV = *.css *.gcda *.html .libs/*.gcda
+
+CLEANFILES += ${CLEANFILES_COV}
+
+DISTCLEANFILES = ${CLEANFILES} config.h config.mk
+
+build: ${PROG}
+
+all:
+	${MAKE} build
+	if ${HAVE_GCOV}; then ${MAKE} cov; fi
+	${MAKE} debug
+	if ${HAVE_ASAN}; then ${MAKE} asan; fi
+
+asan: ${PROG}_asan
+
+clean:
+	rm -rf ${CLEANFILES}
+
+clean_cov:
+	rm -rf ${CLEANFILES_COV}
+
+cov: ${PROG}_cov
+
+debug: ${PROG}_debug
+
+distclean:
+	rm -rf ${DISTCLEANFILES}
+
+gcovr:
+	gcovr --gcov-executable ${GCOV} --html-details math.html
+
+test:
+
+update_sources:
+	./update_sources
+
+.PHONY: all asan build clean cov debug distclean test update_sources
+
+include config.mk
+include sources.mk
diff --git a/math/config.h b/math/config.h
new file mode 100644
index 0000000..28bfc0a
--- /dev/null
+++ b/math/config.h
@@ -0,0 +1,7 @@
+/* config.h generated by configure */
+#ifndef CONFIG_H
+#define CONFIG_H
+#define HAVE_SHA_H 0
+#define HAVE_SHA1_H 1
+#define PREFIX "/usr/local"
+#endif
diff --git a/math/configure b/math/configure
new file mode 100755
index 0000000..1827018
--- /dev/null
+++ b/math/configure
@@ -0,0 +1,148 @@
+#!/bin/sh
+## c3
+## Copyright 2022,2023 kmx.io <contact@kmx.io>
+##
+## Permission is hereby granted to use this software granted the above
+## copyright notice and this permission paragraph are included in all
+## copies and substantial portions of this software.
+##
+## THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+## PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+## AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+## THIS SOFTWARE.
+
+set -e
+
+export SRC_TOP="$(dirname "$PWD")"
+
+. ../config.subr
+
+PROG=circle
+PROG_ASAN=${PROG}_asan
+PROG_COV=${PROG}_cov
+PROG_DEBUG=${PROG}_debug
+
+. ./sources.sh
+
+OBJECTS="$(c2lo "$SOURCES")"
+echo "OBJECTS = $OBJECTS" >> ${CONFIG_MK}
+
+OBJECTS_ASAN="$(c2ext .asan.lo "$SOURCES")"
+echo "OBJECTS_ASAN = $OBJECTS_ASAN" >> ${CONFIG_MK}
+
+if $HAVE_GCOV; then
+    OBJECTS_COV="$(c2ext .cov.lo "$SOURCES")"
+    echo "OBJECTS_COV = $OBJECTS_COV" >> ${CONFIG_MK}
+fi
+
+OBJECTS_DEBUG="$(c2ext .debug.lo "$SOURCES")"
+echo "OBJECTS_DEBUG = $OBJECTS_DEBUG" >> ${CONFIG_MK}
+
+# Default config
+CPPFLAGS="${CPPFLAGS:=}"
+ENV_CFLAGS="${CFLAGS:=}"
+DEFAULT_CFLAGS="-O2 -pipe -fPIC"
+LDFLAGS="-Wl,--allow-shlib-undefined ${LDFLAGS:-}"
+LIBS="${LIBS:=-lm}"
+
+# Common config for all targets
+CFLAGS="$CFLAGS -W -Wall -Werror -std=c11 -pedantic"
+config_asan
+config_gnu
+pkg_config libbsd-overlay
+pkg_config libffi
+pkg_config libmd
+config_lib libmd -lmd
+config_lib dl -ldl
+
+# Asan config
+CFLAGS_ASAN="$CFLAGS -fsanitize=address -O1 -fno-omit-frame-pointer -g"
+LDFLAGS_ASAN="$LDFLAGS"
+LIBC3_ASAN=../libc3/libc3_asan.la
+LOCAL_LIBS_ASAN="$LIBC3_ASAN"
+LIBS_ASAN="$LOCAL_LIBS_ASAN $LIBS"
+
+# Coverage config
+CFLAGS_COV="$CFLAGS -ftest-coverage -fprofile-arcs"
+LDFLAGS_COV="$LDFLAGS"
+LIBC3_COV=../libc3/libc3_cov.la
+LOCAL_LIBS_COV="$LIBC3_COV"
+LIBS_COV="$LOCAL_LIBS_COV $LIBS"
+
+# Debug config
+CFLAGS_DEBUG="$CFLAGS -DDEBUG -O0 -ggdb"
+LDFLAGS_DEBUG="$LDFLAGS"
+LIBC3_DEBUG=../libc3/libc3_debug.la
+LOCAL_LIBS_DEBUG="$LIBC3_DEBUG"
+LIBS_DEBUG="$LOCAL_LIBS_DEBUG $LIBS"
+
+# Main config
+if [ "x$ENV_CFLAGS" = "x" ]; then
+    CFLAGS="$CFLAGS $DEFAULT_CFLAGS"
+fi
+CFLAGS="$CFLAGS -DNDEBUG"
+LIBC3=../libc3/libc3.la
+LOCAL_LIBS="$LIBC3"
+LIBS="$LOCAL_LIBS $LIBS"
+
+echo "HAVE_ASAN = $HAVE_ASAN" >> ${CONFIG_MK}
+echo "CPPFLAGS = $CPPFLAGS" >> ${CONFIG_MK}
+echo "CFLAGS = $CFLAGS" >> ${CONFIG_MK}
+echo "LDFLAGS = $LDFLAGS" >> ${CONFIG_MK}
+echo "LIBS = $LIBS" >> ${CONFIG_MK}
+echo >> ${CONFIG_MK}
+echo "CFLAGS_ASAN = $CFLAGS_ASAN" >> ${CONFIG_MK}
+echo "LDFLAGS_ASAN = $LDFLAGS_ASAN" >> ${CONFIG_MK}
+echo "LIBS_ASAN = $LIBS_ASAN" >> ${CONFIG_MK}
+echo >> ${CONFIG_MK}
+echo "CFLAGS_COV = $CFLAGS_COV" >> ${CONFIG_MK}
+echo "LDFLAGS_COV = $LDFLAGS_COV" >> ${CONFIG_MK}
+echo "LIBS_COV = $LIBS_COV" >> ${CONFIG_MK}
+echo >> ${CONFIG_MK}
+echo "CFLAGS_DEBUG = $CFLAGS_DEBUG" >> ${CONFIG_MK}
+echo "LDFLAGS_DEBUG = $LDFLAGS_DEBUG" >> ${CONFIG_MK}
+echo "LIBS_DEBUG = $LIBS_DEBUG" >> ${CONFIG_MK}
+
+echo >> ${CONFIG_MK}
+echo "$PROG: $LOCAL_LIBS $OBJECTS" >> ${CONFIG_MK}
+echo "	${LIBTOOL} --tag=CC --mode=link \${CC} \${CFLAGS} \${LDFLAGS} ${OBJECTS} ${LIBS} -o $PROG" >> ${CONFIG_MK}
+
+echo >> ${CONFIG_MK}
+echo "$PROG_ASAN: $LOCAL_LIBS_ASAN $OBJECTS_ASAN" >> ${CONFIG_MK}
+echo "	${LIBTOOL} --tag=CC --mode=link \${CC} \${CFLAGS_ASAN} \${LDFLAGS_ASAN} ${OBJECTS_ASAN} ${LIBS_ASAN} -o $PROG_ASAN" >> ${CONFIG_MK}
+
+if $HAVE_GCOV; then
+    echo >> ${CONFIG_MK}
+    echo "$PROG_COV: $LOCAL_LIBS_COV $OBJECTS_COV" >> ${CONFIG_MK}
+    echo "	${LIBTOOL} --tag=CC --mode=link \${CC} \${CFLAGS_COV} \${LDFLAGS_COV} ${OBJECTS_COV} ${LIBS_COV} -o $PROG_COV" >> ${CONFIG_MK}
+fi
+
+echo >> ${CONFIG_MK}
+echo "$PROG_DEBUG: $LOCAL_LIBS_DEBUG $OBJECTS_DEBUG" >> ${CONFIG_MK}
+echo "	${LIBTOOL} --tag=CC --mode=link \${CC} \${CFLAGS_DEBUG} \${LDFLAGS_DEBUG} ${OBJECTS_DEBUG} ${LIBS_DEBUG} -o $PROG_DEBUG" >> ${CONFIG_MK}
+
+for SRC in $SOURCES; do
+    echo >> ${CONFIG_MK}
+    SRC_LO="$(c2lo "$SRC")"
+    lo_rule "$SRC" >> ${CONFIG_MK}
+    echo "	${LIBTOOL} --tag=CC --mode=compile \${CC} \${CPPFLAGS} \${CFLAGS} -c $SRC -o $SRC_LO" >> ${CONFIG_MK}
+
+    echo >> ${CONFIG_MK}
+    SRC_ASAN_LO="$(c2ext .asan.lo "$SRC")"
+    ext_rule .asan.lo "$SRC" >> ${CONFIG_MK}
+    echo "	${LIBTOOL} --tag=CC --mode=compile \${CC} \${CPPFLAGS} \${CFLAGS_ASAN} -c $SRC -o $SRC_ASAN_LO" >> ${CONFIG_MK}
+
+    if $HAVE_GCOV; then
+        echo >> ${CONFIG_MK}
+        SRC_COV_LO="$(c2ext .cov.lo "$SRC")"
+        ext_rule .cov.lo "$SRC" >> ${CONFIG_MK}
+        echo "	${LIBTOOL} --tag=CC --mode=compile \${CC} \${CPPFLAGS} \${CFLAGS_COV} -c $SRC -o $SRC_COV_LO" >> ${CONFIG_MK}
+    fi
+
+    echo >> ${CONFIG_MK}
+    SRC_DEBUG_LO="$(c2ext .debug.lo "$SRC")"
+    ext_rule .debug.lo "$SRC" >> ${CONFIG_MK}
+    echo "	${LIBTOOL} --tag=CC --mode=compile \${CC} \${CPPFLAGS} \${CFLAGS_DEBUG} -c $SRC -o $SRC_DEBUG_LO" >> ${CONFIG_MK}
+done
+
+update_config_mk
diff --git a/math/sin.c b/math/sin.c
index 37088a8..4f865ea 100644
--- a/math/sin.c
+++ b/math/sin.c
@@ -23,7 +23,7 @@ s8 sin_u8 (u8 x)
   switch (x >> side_bits) {
   case 0:
     i = x & n;
-    y = (S16_MAX) i * S8_MAX / n * S8_MAX / sqrt(n * n + i * i / n / n) / S8_MAX;
+    y = i * S8_MAX / n * S8_MAX / sqrt(n * n + i * i / n / n) / S8_MAX;
     return y;
   case 1:
     return 1;
diff --git a/math/sin.h b/math/sin.h
index 84fa012..52cd9cf 100644
--- a/math/sin.h
+++ b/math/sin.h
@@ -13,7 +13,7 @@
 #ifndef SIN_H
 #define SIN_H
 
-#include "types.h"
+#include "../libc3/c3.h"
 
 s8 sin_s8 (s8 x);
 
diff --git a/math/sources.mk b/math/sources.mk
new file mode 100644
index 0000000..6ff5627
--- /dev/null
+++ b/math/sources.mk
@@ -0,0 +1,7 @@
+# sources.mk generated by update_sources
+HEADERS = \
+	sin.h \
+
+SOURCES = \
+	sin.c \
+
diff --git a/math/sources.sh b/math/sources.sh
new file mode 100644
index 0000000..8c71707
--- /dev/null
+++ b/math/sources.sh
@@ -0,0 +1,3 @@
+# sources.sh generated by update_sources
+HEADERS='sin.h '
+SOURCES='sin.c '
diff --git a/math/update_sources b/math/update_sources
new file mode 100755
index 0000000..8abe9b4
--- /dev/null
+++ b/math/update_sources
@@ -0,0 +1,26 @@
+#!/bin/sh
+## c3
+## Copyright 2022,2023 kmx.io <contact@kmx.io>
+##
+## Permission is hereby granted to use this software granted the above
+## copyright notice and this permission paragraph are included in all
+## copies and substantial portions of this software.
+##
+## THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
+## PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
+## AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
+## THIS SOFTWARE.
+
+. ../config.subr
+
+echo "# sources.mk generated by update_sources" > ${SOURCES_MK}
+echo "# sources.sh generated by update_sources" > ${SOURCES_SH}
+
+HEADERS="$(ls *.h)"
+sources HEADERS "$HEADERS"
+
+SOURCES="$(ls *.c)"
+sources SOURCES "$SOURCES"
+
+update_sources_mk
+update_sources_sh