 
     ! Tear down stack frame and return
     0 1 callback-frame-size lr-save + LWZ
-    1 1 0 LWZ
+    1 1 callback-frame-size ADDI
     0 MTLR
     BLR
 ] callback-stub jit-define

    nv-fp-regs [ 8 * 80 + save-fp ] each-index
    nv-vec-regs [ 16 * 224 + save-vec ] each-index

    ! Load VM into vm-reg
    0 vm-reg LOAD32 rc-absolute-ppc-2/2 rt-vm jit-rel


    432 save-at ;

[
    ! Save old stack pointer
    11 1 MR

    ! Create stack frame
    0 MFLR
    1 1 callback-frame-size SUBI
    0 1 callback-frame-size lr-save + STW

    ! Save all non-volatile registers
