0xB00B50000 - halt off [Bootable sector not found]
0x1110010A0/0x1110000A0 - enable/disable trace log
0x1190010A0/0x1190000A0 - enable/disable stack forward flag
0x1180010A0/0x1180000A0 - enable/disable float flag
0x1220010A0/0x1220000A0 - enable/disable southFlag
0x1210010A0/0x1210000A0 - enable/disable eastFlag
0x1200010A0/0x1200000A0 - enable/disable northFlag
0x1220010A0 - enable south flag
(.ldx 0x12 0x1)
0xA4450F600 - reading from bios this flag and insert into stack
(.rfd 0x45 0xF6)
0xA19000000 - pulling from stack and insert value into 0x9 memory cell
(.pull 0x9)
0xF14E900F0 - reading from 0x9 memory cell and send to terminal device for print value on screen
(.mvx 0x1 0x4 0x9)