R_FLG
#define SET_FLAG(flag) (emu->x86.R_FLG |= (flag))
#define CLEAR_FLAG(flag) (emu->x86.R_FLG &= ~(flag))
#define ACCESS_FLAG(flag) (emu->x86.R_FLG & (flag))
#define CLEARALL_FLAG(m) (emu->x86.R_FLG = 0)
push_word(emu, (uint16_t) emu->x86.R_FLG);
emu->x86.R_FLG = pop_word(emu);
emu->x86.R_FLG &= 0xffffff00;
emu->x86.R_FLG |= emu->x86.R_AH;
emu->x86.R_AH = (uint8_t) (emu->x86.R_FLG & 0xff);
push_word(emu, emu->x86.R_FLG);
emu->x86.R_FLG = pop_word(emu);