--- test\listing_0047_challenge_flags execution ---
add bx, 30000 ; bx:0x0->0x7530 flags:->P 
add bx, 10000 ; bx:0x7530->0x9c40 flags:P->SO 
sub bx, 5000 ; bx:0x9c40->0x88b8 flags:SO->PAS 
sub bx, 5000 ; bx:0x88b8->0x7530 flags:PAS->PO 
mov bx, 1 ; bx:0x7530->0x1 
mov cx, 100 ; cx:0x0->0x64 
add bx, cx ; bx:0x1->0x65 flags:PO->P 
mov dx, 10 ; dx:0x0->0xa 
sub cx, dx ; cx:0x64->0x5a flags:P->PA 
add bx, 40000 ; bx:0x65->0x9ca5 flags:PA->PS 
add cx, -90 ; cx:0x5a->0x0 flags:PS->CPAZ 
mov sp, 99 ; sp:0x0->0x63 
mov bp, 98 ; bp:0x0->0x62 
cmp bp, sp ; flags:CPAZ->CPAS 

Final registers:
      bx: 0x9ca5 (40101)
      dx: 0x000a (10)
      sp: 0x0063 (99)
      bp: 0x0062 (98)
   flags: CPAS