.section .data

.p2align 3
stack_at_first_entry:
        .8byte  0

.section .text

.global menu
.extern _menu

menu:
        lla     t0, stack_at_first_entry
        ld      t1, (t0)
        beqz    t1, 1f
        mv      sp, t1
        j       2f
1:      sd      sp, (t0)
2:      mv      fp, zero
        mv      ra, zero
        j       _menu