2 #include <machine/npx.h>
7 inline static unsigned int uap_fpu_status(void *uap)
9 ucontext_t *ucontext = (ucontext_t *)uap;
10 if (ucontext->uc_mcontext.mc_fpformat == _MC_FPFMT_387)
12 struct save87 *x87 = (struct save87 *)(&ucontext->uc_mcontext.mc_fpstate);
13 return x87->sv_env.en_sw;
15 else if (ucontext->uc_mcontext.mc_fpformat == _MC_FPFMT_XMM)
17 struct savexmm *xmm = (struct savexmm *)(&ucontext->uc_mcontext.mc_fpstate);
18 return xmm->sv_env.en_sw | xmm->sv_env.en_mxcsr;
24 inline static void uap_clear_fpu_status(void *uap)
26 ucontext_t *ucontext = (ucontext_t *)uap;
27 if (ucontext->uc_mcontext.mc_fpformat == _MC_FPFMT_387)
29 struct save87 *x87 = (struct save87 *)(&ucontext->uc_mcontext.mc_fpstate);
30 x87->sv_env.en_sw = 0;
32 else if (ucontext->uc_mcontext.mc_fpformat == _MC_FPFMT_XMM)
34 struct savexmm *xmm = (struct savexmm *)(&ucontext->uc_mcontext.mc_fpstate);
35 xmm->sv_env.en_sw = 0;
36 xmm->sv_env.en_mxcsr &= 0xffffffc0;
41 #define UAP_STACK_POINTER(ucontext) (((ucontext_t *)ucontext)->uc_mcontext.mc_esp)
42 #define UAP_PROGRAM_COUNTER(ucontext) (((ucontext_t *)ucontext)->uc_mcontext.mc_eip)