nasmw -otest.bin test.asm 
ndisasmw test.bin >test.lst

IF exist test.bin goto hex:
echo shit
exit

:hex
echo OK
bin2hex test.bin >prom.mem.v


set path=c:\iverilog\bin

@rem iverilog -oa86_tb_disasm a86_tb_disasm.v

@iverilog -yc:\iverilog\rom\ -oa86_tb a86_tb.v
vvp a86_tb >result.txt