.ifill pushge r15
prog_dup:
-.ifill pop r6
-.ifill push r6
+.ifill fetch r6
.ifill push r6
prog_jmp:
.ifill push r6
prog_pop:
-.ifill pop r6
+.ifill disc r6
prog_xch:
.ifill pop r6
PROGINSTR
ldw r0, 4(r4)
PROGINSTR
- ldw r0, 8(r4)
- PROGINSTR
;increment address
- addi r2, r2, 3
+ addi r2, r2, 2
br+ vm_loop