projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 0fa6cf1b MS |
1 | #include <stdio.h> |
| 2 | #include <math.h> | |
| 3 | #include <stdlib.h> | |
| 4 | ||
| 5 | ||
| 6 | float no1,no2,no3,no4,no5,no6,no7; | |
| 7 | float result,resultd,resultld; | |
| 8 | float *float_memory; | |
| 9 | long double ldx = 88888888888888888888.88, ldy = 9999999999999999999.99; | |
| 10 | double x = 100.345, y = 25.7789; | |
| 11 | /* marks FPU stack as empty */ | |
| 12 | void empty_fpu_stack() | |
| 13 | { | |
| 14 | asm ("ffree %st(1) \n\t" | |
| 15 | "ffree %st(2) \n\t" | |
| 16 | "ffree %st(3) \n\t" | |
| 17 | "ffree %st(4) \n\t" | |
| 18 | "ffree %st(5) \n\t" | |
| 19 | "ffree %st(6) \n\t" | |
| 20 | "ffree %st(7)"); | |
| 21 | } | |
| 22 | ||
| 23 | /* initialization of floats */ | |
| 24 | void init_floats() | |
| 25 | { | |
| 26 | no1 = 10.45; | |
| 27 | no2 = 20.77; | |
| 28 | no3 = 156.89874646; | |
| 29 | no4 = 14.56; | |
| 30 | no5 = 11.11; | |
| 31 | no6 = 66.77; | |
| 32 | no7 = 88.88; | |
| 33 | float_memory = malloc(sizeof(float) * 4); | |
| 34 | *float_memory = 256.256; | |
| 35 | *(float_memory + 1) = 356.356; | |
| 36 | *(float_memory + 2) = 456.456; | |
| 37 | *(float_memory + 3) = 556.556; | |
| 38 | } | |
| 39 | ||
| 40 | int main() | |
| 41 | { | |
| 42 | init_floats(); | |
| 43 | empty_fpu_stack(); /* BEGIN I387-FLOAT-REVERSE */ | |
| 44 | ||
| 45 | asm("nop"); /* TEST ENV */ | |
| 46 | asm ("fsave %0" : "=m"(*float_memory) : ); | |
| 47 | asm ("frstor %0" : : "m"(*float_memory)); | |
| 48 | asm ("fstsw %ax"); /* test eax register */ | |
| 49 | ||
| 50 | asm ("fld1"); | |
| 51 | asm ("fldl2t"); | |
| 52 | asm ("fldl2e"); | |
| 53 | asm ("fldpi"); | |
| 54 | asm ("fldlg2"); | |
| 55 | asm ("fldln2"); | |
| 56 | asm ("fldz"); | |
| 57 | asm ("nop"); | |
| 58 | ||
| 59 | return 1; /* END I387-FLOAT-REVERSE */ | |
| 60 | } |