ymcontrol: equ 04000h ; last def. pass 3
redo: equ 015h ; last def. pass 3
ymdata: equ 04001h ; last def. pass 3
stack: equ 01FF0h ; last def. pass 3
sine: equ 026h ; last def. pass 3
loop: equ 01Ah ; last def. pass 3
