ISPL
(ISPL((framep)->tf_cs) == SEL_UPL)
#define CS_SECURE(cs) (ISPL(cs) == SEL_UPL)
return (val != 0 && ISPL(val) != SEL_UPL);
pcb->pcb_esp = (ISPL(tf->tf_cs)) ? tf->tf_esp : (int)(tf + 1) - 8;
ISPL(frame->tf_cs) == SEL_UPL ? "user" : "kernel");
((ISPL((framep)->tf_cs) == SEL_UPL) || ((framep)->tf_eflags & PSL_VM))
#define CS_SECURE(cs) (ISPL(cs) == SEL_UPL)
#define CS_SECURE(cs) (ISPL(cs) == SEL_UPL)
#define CS_SECURE(cs) (ISPL(cs) == SEL_UPL)