binutils-gdb/gdb/testsuite/gdb.reverse/i387-stack-reverse.c

39 lines
934 B
C

#include <stdio.h>
#include <math.h>
#include <stdlib.h>
/* marks FPU stack as empty */
void empty_fpu_stack()
{
asm ("ffree %st(1) \n\t"
"ffree %st(2) \n\t"
"ffree %st(3) \n\t"
"ffree %st(4) \n\t"
"ffree %st(5) \n\t"
"ffree %st(6) \n\t"
"ffree %st(7)");
}
/* tests floating point arithmatic */
void test_arith_floats()
{
}
int main()
{
empty_fpu_stack(); /* BEGIN I387-FLOAT-REVERSE */
asm ("fld1"); /* test st0 register */
asm ("fldl2t"); /* test st0, st1 */
asm ("fldl2e"); /* test st0, st1, st2 */
asm ("fldpi"); /* test st0, st1, st2, st3 */
asm ("fldlg2"); /* test st0, st1, st2, st3, st4 */
asm ("fldln2"); /* test st0, st1, st2, st3, st4, st5 */
asm ("fldz"); /* test st0, st1, st2, st3, st4, st5, st6 */
asm ("fld1"); /* test st0, st1, st2, st3, st4, st5, st6, st7 */
asm ("nop");
return 1; /* END I387-FLOAT-REVERSE */
}