------------------------------------
   #0000 00      NOP
   SP:#0000 IX:0000   #FFFE #00 .
   IR:#0000 IY:0000   #FFFF #00 .
   BC:#0000 B':0000  >#0000 #00 .<
   DE:#0000 D':0000   #0001 #00 .
   HL:#0000 H':0000   #0002 #00 .
   AF:#0000 A':0000   
   NZ NC PO P    DI   >C
------------------------------------

           S A M V A S T


  enhanced monitor & disassembler
      from the ZX Spectrum's
       VAST & DEVAST family

------------------------------------


ESC (Symbol+Q)  return to SAM Basic

      DOWN      move to next opcode
        UP      move per one byte back
     RIGHT      move to memory address
      LEFT      go back to prior memory address

         M      set memory address
Symbol + H      call subroutine (CALL)
Symbol + T      run code (JP)

         W      set start (for BREAKPOINT use)
Symbol + U      run (using BREAKPOINT)

Symbol + Z      step instruction  
Symbol + X      -"- (CALL subroutine is done at once)
Symbol + V      trace instructions
Symbol + B      -"- (CALL subroutine is done at once)

Symbol + 3      change numerical system (DEC/HEXADEC)

Symbol + 4      dissasemble
         V      dissasemble from address

         O      memory dump (chars)
Symbol + O      -"- from address
         L      memory dump (numbers)
Symbol + L      -"- from address
         K      memory dump (chars & numbers)
Symbol + K      -"- from address

         I      transfer memory block (FIRST, LAST, TO)
Symbol + I      transfer memory block (FIRST, LENGHT, TO)
         P      fill memory block (FIRST, LAST, WITH)
Symbol + P      fill memory block (FIRST, LENGHT, WITH)

         G      find sequence of bytes
Symbol + G      show sequence         
         N      find next

Symbol + N      set values of CPU registers

         T      write text
         
         R      set RAM page (from address 32768)
         S      set screen page
Symbol + S      set screen mode

<EndOfFile>