rcr0
u_int rcr0(void);
#define x86_get_cr0() rcr0()
load_cr0(rcr0() | CR0_TS); \
#define x86_get_cr0() rcr0()
cr0 = rcr0();
load_cr0(rcr0() | CR0_MP);
cr0 = rcr0();
cr0 = rcr0();
#define start_emulating() load_cr0(rcr0() | CR0_TS)
cr0 = rcr0();
load_cr0(rcr0() | CR0_MP);
cr0 = rcr0();