diff options
Diffstat (limited to 'sys/arch/amiga/dev/gen_cvtab.c')
| -rw-r--r-- | sys/arch/amiga/dev/gen_cvtab.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sys/arch/amiga/dev/gen_cvtab.c b/sys/arch/amiga/dev/gen_cvtab.c new file mode 100644 index 00000000000..a78f9e4c867 --- /dev/null +++ b/sys/arch/amiga/dev/gen_cvtab.c @@ -0,0 +1,66 @@ +/* $OpenBSD: gen_cvtab.c,v 1.1 1996/02/26 21:08:03 niklas Exp $ */ +/* $NetBSD: gen_cvtab.c,v 1.1 1996/02/24 20:13:00 chopps Exp $ */ + +/* + * Copyright (c) 1996 Christian E. Hopps + * All rights reserved. + * + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Christian E. Hopps. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. + */ +#include <sys/types.h> +#include <stdio.h> + +/* + * generate a conversion table to replace the use of the + * floating point expression below in grf_cv.c + */ +int +main(int argc, char** argv) +{ + u_long vals[31]; + u_long clock; + int m = 33; + int lastm = -1; + + for (clock = 0; clock < 1080 && m > 0; ++clock) { + m = ((55 * .72 + 16.867) * 89.736 / (clock + 39) - 21.1543); + m = m / 2 - 1; + if (m > 31) + continue; + if (m != lastm) { + vals[m] = clock; + lastm = m; + } + } + printf("/* generated by gen_cvtab */\n"); + printf("static int cv_convtab[31] = {"); + for (m = 0; m < 31; ++m) { + if (m % 5 == 0) + printf("\n"); + printf("\t%ld,", vals[m]); + } + printf("\n};\n"); +} |