; ( -- n ) Control Structure
; R( loop-sys1 loop-sys2 -- loop-sys1 loop-sys2)
; loop counter of outer loop
VE_J:
.db 1, "j"
.dw VE_HEAD
.set VE_HEAD = VE_J
XT_J:
.dw DO_COLON
PFA_J:
.dw XT_RP_FETCH
.dw XT_DOLITERAL
.dw 9
.dw XT_PLUS
.dw XT_FETCH
.dw XT_EXIT