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https://opencores.org/ocsvn/openrisc/openrisc/trunk
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| Line No. |
Rev |
Author |
Line |
| 1 |
688 |
jeremybenn |
struct sw {
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| 2 |
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const void *x;
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| 3 |
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int r;
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| 4 |
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};
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| 5 |
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struct sq {
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| 6 |
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struct sw *q_w;
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| 7 |
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int t;
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| 8 |
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int z;
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| 9 |
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};
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| 10 |
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| 11 |
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int
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| 12 |
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f (int ch, char *fp, char *ap)
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| 13 |
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{
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| 14 |
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register int n;
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| 15 |
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register char *cp;
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| 16 |
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register struct sw *p;
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| 17 |
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register int f;
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| 18 |
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int prec;
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| 19 |
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double _double;
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| 20 |
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int expt;
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| 21 |
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int ndig;
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| 22 |
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char expstr[7];
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| 23 |
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unsigned long long _uquad;
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| 24 |
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struct sq q;
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| 25 |
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struct sw w[8];
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| 26 |
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static char zeroes[16];
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| 27 |
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| 28 |
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for (;;) {
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| 29 |
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switch (ch) {
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| 30 |
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case 'd':
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| 31 |
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_double = (double) (ap += 8, *((double *) (ap - 8)));
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| 32 |
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break;
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| 33 |
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case 'o':
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| 34 |
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goto nosign;
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| 35 |
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case 'u':
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| 36 |
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_uquad = (f & 0x020 ? (ap += 8, *((long long *) (ap - 8))) : f & 0x010 ? (ap += 4, *((long *) (ap - 4))) : f & 0x040 ? (long)(short)(ap += 4, *((int *) (ap - 4))) : (long)(ap += 4, *((int *) (ap - 4))));
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| 37 |
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goto nosign;
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| 38 |
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case 'x':
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| 39 |
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_uquad = (f & 0x020 ? (ap += 8, *((long long *) (ap - 8))) : f & 0x010 ? (ap += 4, *((long *) (ap - 4))) : f & 0x040 ? (long)(unsigned short)(ap += 4, *((int *) (ap - 4))) : (long)(ap += 4, *((int *) (ap - 4))));
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| 40 |
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nosign:
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| 41 |
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if (_uquad != 0 || prec != 0);
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| 42 |
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break;
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| 43 |
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default:;
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| 44 |
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}
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| 45 |
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if ((f & 0x100) == 0) {
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| 46 |
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} else {
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| 47 |
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if (ch >= 'f') {
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| 48 |
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if (_double == 0) {
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| 49 |
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if (expt < ndig || (f & 0x001) != 0) {
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| 50 |
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{ if ((n = (ndig - 1)) > 0) { while (n > 16) {{ p->x = (zeroes); p->r = 16; q.z += 16; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }} n -= 16; }{ p->x = (zeroes); p->r = n; q.z += n; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }}}}
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| 51 |
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}
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| 52 |
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} else if (expt <= 0) {
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| 53 |
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{ p->x = ("0"); p->r = 1; q.z += 1; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }}
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| 54 |
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{ p->x = 0; p->r = 1; q.z += 1; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }}
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| 55 |
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{ if ((n = (-expt)) > 0) { while (n > 16) {{ p->x = (zeroes); p->r = 16; q.z += 16; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }} n -= 16; }{ p->x = (zeroes); p->r = n; q.z += n; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }} }}
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| 56 |
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{ p->x = cp; p->r = ndig; q.z += ndig; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }}
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| 57 |
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} else {
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| 58 |
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{ p->x = cp; p->r = expt; q.z += expt; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }}
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| 59 |
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cp += expt;
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| 60 |
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{ p->x = ("."); p->r = 1; q.z += 1; p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }}
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| 61 |
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{ p->x = cp; p->r = (ndig-expt); q.z += (ndig-expt); p++; if (++q.t >= 8) { if (g(fp, &q)) goto error; p = w; }}
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| 62 |
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}
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| 63 |
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}
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| 64 |
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}
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| 65 |
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}
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| 66 |
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| 67 |
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error:;
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| 68 |
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}
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