57 lines
979 B
C
57 lines
979 B
C
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#include <stdio.h>
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#include <ctype.h>
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#include <math.h>
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int lineno;
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union {
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unsigned w[2];
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double d;
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} uda, udb, udc;
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/*
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* Read test vectors from file and test the fp emulation by
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* comparing it with the hardware.
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*/
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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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register char *cp;
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register int c;
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char buf[10];
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unsigned arg[4];
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for (lineno = 1; ; lineno++) {
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c = scanf("%x %x %x %x", &arg[1], &arg[0], &arg[3], &arg[2]);
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if (c < 0)
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break;
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if (c != 4) {
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fprintf(stderr, "line %d: expected 4 args\n",
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lineno);
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goto skip;
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}
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uda.w[0] = arg[0];
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uda.w[1] = arg[1];
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udb.w[0] = arg[2];
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udb.w[1] = arg[3];
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udc.d = copysign(uda.d, udb.d);
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printf("line %d: copysign(%x,%x %x,%x) = %x,%x\n",
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lineno,
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uda.w[1], uda.w[0],
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udb.w[1], udb.w[0],
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udc.w[1], udc.w[0]);
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skip:
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while ((c = getchar()) != EOF && c != '\n')
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;
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}
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}
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trapsignal(p, sig, code)
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int p, sig, code;
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{
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printf("line %d: signal(%d, %x)\n", lineno, sig, code);
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}
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