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/* *****************************************************************/
/* This file specifies the instruction added by the 'N' extension. */
union clause ast = URET : unit
mapping clause encdec = URET()
<-> 0b0000000 @ 0b00010 @ 0b00000 @ 0b000 @ 0b00000 @ 0b1110011
function clause execute URET() = {
if (~ (haveUsrMode()))
then handle_illegal()
else set_next_pc(exception_handler(cur_privilege, CTL_URET(), PC));
RETIRE_FAIL
}
mapping clause assembly = URET() <-> "uret"
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