7 * Format floating point registers
9 * Register codes in format field:
10 * 'X' - print as 32-bit hexadecimal value
11 * 'F' - 64-bit double register when modif == 'F'; else 32-bit single reg
12 * 'f' - 32-bit ieee float
13 * '8' - big endian 80-bit ieee extended float
14 * '3' - little endian 80-bit ieee extended float with hole in bytes 8&9
17 fpformat(Map *map, Regdesc *rp, char *buf, uint n, uint modif)
25 if (get4(map, rp->offset, &r) < 0)
27 snprint(buf, n, "%lux", r);
29 case 'F': /* first reg of double reg pair */
31 if ((rp->format=='F') || (((rp+1)->flags&RFLT) && (rp+1)->format == 'f')) {
32 if (get1(map, rp->offset, (uchar *)reg, 8) < 0)
34 mach->ftoa64(buf, n, reg);
35 if (rp->format == 'F')
39 /* treat it like 'f' */
40 if (get1(map, rp->offset, (uchar *)reg, 4) < 0)
42 mach->ftoa32(buf, n, reg);
44 case 'f': /* 32 bit float */
45 if (get1(map, rp->offset, (uchar *)reg, 4) < 0)
47 mach->ftoa32(buf, n, reg);
49 case '3': /* little endian ieee 80 with hole in bytes 8&9 */
50 if (get1(map, rp->offset, (uchar *)reg, 10) < 0)
52 memmove(reg+10, reg+8, 2); /* open hole */
53 memset(reg+8, 0, 2); /* fill it */
54 leieeeftoa80(buf, n, reg);
56 case '8': /* big-endian ieee 80 */
57 if (get1(map, rp->offset, (uchar *)reg, 10) < 0)
59 beieeeftoa80(buf, n, reg);
61 default: /* unknown */