CP/M/CPM_CDROM.iso/mbug/mbug049.arc/SCRDMP11.I

Text File | 1979-12-31 | 2KB | 59 lines

                                SCRDMP11.I

                           By Rex Foord Jan '87

     Thi≤á i≤á ß versioε oµ thσ Talkinτ Turb∩ screendum≡ routinσ tha⌠á wil∞ ì
worδá unde≥á Turb∩á Pasca∞ V│ Thσ versioε containeΣá iεá thσá Librar∙á filσ ì
TLKNGTRB.LB╥ wil∞ onl∙ worδ fo≥ T╨ V2.

     I⌠á seem≤ tha⌠ T╨ V│ reset≤ thσ romlatcΦ afte≥ ß writσá statement¼á s∩ ì
thi≤á versioεá oµ thσ screendum≡ routinσ set≤ thσ romlatcΦ t∩ thσá standarΣ ì
characte≥ se⌠ withiε thσ loo≡ tha⌠ i≤ sendinτ character≤ t∩ thσ printer.



{ V1.0
8░ columε graphiπ screeε dum≡ procedurσ fo≥ paralle∞ Epsoε compatiblσ printer
  Writteε b∙ Danie∞ Prage≥ 1986
  V1.1
  Slight modification so as able to run under Turbo Pascal V3
  TP V3 resets the romlatch after a write or writeln
  therefore romlatch needs to be reset to standard set before write statement
  in loop Line:=10 downto 0
  R.J. Foord  Jan 87 }

procedure ScreenDump;
const
  LessHeight  = #27'1';       {Printer code to decrease line height}
  Default     = #27'2';       {Code to restore the default line height}
  BIG         = #27'K'#8#1;   {Code to initialise Bit Image Graphics}
  ROMLatch    = 11;           {Port Latch for screen RAM/Standard set ROM}
  ScreenRAM   = 0;            {Screen RAM setting for Port[ROMLatch]}
  StandardSet = 1;            {Standard set value for Port[ROMLatch]}

var
  X, Y, TopLine : Integer;
  PCG, Line : Byte;

begin
  Writeln(LST, LessHeight);
  for X := 0 to 79 do
    begin
      Writeln(LST);
      Write(LST,' ':23, BIG);
      for Y := 23 downto 0 do
        begin
          PCG := Mem[$F000 + Y * 80 + X];
          TopLine := $F000 + PCG * 16;
          for Line := 10 downto 0 do
            begin
              Port[ROMLatch] := StandardSet;
              Write(LST, Chr(Mem[TopLine + Line]));
            end;
          Port[ROMLatch] := ScreenRAM;
        end
    end;
  Writeln(LST, Default)
end;