184 lines
4.3 KiB
C
184 lines
4.3 KiB
C
/* $NetBSD: divremtest.c,v 1.1 1995/04/24 05:53:35 cgd Exp $ */
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/*
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* Copyright (c) 1995 Christopher G. Demetriou
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <signal.h>
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void testfile();
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void usage();
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int generate;
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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int c;
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signal(SIGFPE, SIG_IGN);
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while ((c = getopt(argc, argv, "g")) != -1)
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switch (c) {
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case 'g':
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generate = 1;
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break;
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default:
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usage();
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break;
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}
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argc -= optind;
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argv += optind;
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if (argc == 0)
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testfile();
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else
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for (; argc != 0; argc--, argv++) {
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if (freopen(argv[0], "r", stdin) == NULL) {
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fprintf(stderr,
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"divremtest: couldn't open %s\n",
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argv[0]);
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exit(1);
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}
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testfile();
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}
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exit(0);
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}
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void
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testfile()
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{
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union operand {
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unsigned long input;
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int op_int;
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unsigned int op_u_int;
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long op_long;
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unsigned long op_u_long;
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} op1, op2, divres, modres, divwant, modwant;
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char opspec[6];
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int encoded, i;
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while (scanf("%6c %lx %lx %lx %lx\n", opspec, &op1.input,
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&op2.input, &divwant.input, &modwant.input) != EOF) {
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encoded = 0;
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for (i = 0; i < 6; i += 2) {
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int posval;
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switch (opspec[i]) {
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case '.':
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posval = 0;
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break;
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case '-':
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posval = 1;
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break;
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default:
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fprintf(stderr,
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"unknown signedness spec %c\n",
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opspec[i]);
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exit(1);
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}
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encoded |= posval << ((5 - i) * 4);
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}
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for (i = 1; i < 6; i += 2) {
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int posval;
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switch (opspec[i]) {
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case 'i':
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posval = 0;
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break;
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case 'l':
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posval = 1;
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break;
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default:
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fprintf(stderr, "unknown length spec %c\n",
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opspec[i]);
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exit(1);
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}
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encoded |= posval << ((5 - i) * 4);
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}
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/* KILL ME!!! */
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switch (encoded) {
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#define TRY_IT(a, b, c) \
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divres.a = op1.b / op2.c; \
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modres.a = op1.b % op2.c; \
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if (generate) { \
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printf("%6s 0x%016lx 0x%016lx 0x%016lx 0x%016lx\n", \
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opspec, op1.input, op2.input, \
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divres.a, modres.a); \
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} else { \
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if ((divres.a != divwant.a) || \
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(modres.a != modwant.a)) { \
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fprintf(stderr, "%6s 0x%016lx 0x%016lx\n", \
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opspec, op1.input, op2.input); \
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fprintf(stderr, "FAILED:\n"); \
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fprintf(stderr, \
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"div:\twanted 0x%16lx, got 0x%16lx\n", \
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divwant.a, divres.a); \
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fprintf(stderr, \
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"mod:\twanted 0x%16lx, got 0x%16lx\n", \
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modwant.a, modres.a); \
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\
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exit(1); \
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} \
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}
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#include "cases.c"
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#undef TRY_IT
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default:
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fprintf(stderr,
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"INTERNAL ERROR: unknown encoding %x\n", encoded);
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exit(1);
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}
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}
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}
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void
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usage()
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{
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fprintf(stderr, "usage: divremtest [-v] [testfile ...]\n");
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exit(1);
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}
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