dos_compilers/Borland Turbo Pascal v1/TU.PAS
2024-06-30 14:18:33 -07:00

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type
timetype = record h, m, s, l : integer; end;
regpac = record
ax,bx,cx,dx,bp,si,di,ds,es,flags: integer;
end;
tustr = string[30];
procedure time_difference( var tStart, tEnd, tDiff : timetype );
var
startSecond, startMinute, startHour : integer;
begin { time_difference }
startSecond := tStart.s;
startMinute := tStart.m;
startHour := tStart.h;
tDiff.l := tEnd.l - tStart.l;
if ( tDiff.l < 0 ) then
begin
tDiff.l := tDiff.l + 100;
startSecond := startSecond + 1;
end;
tDiff.s := tEnd.s - startSecond;
if ( tDiff.s < 0 ) then
begin
tDiff.s := tDiff.s + 60;
startMinute := startMinute + 1;
end;
tDiff.m := tEnd.m - startMinute;
if ( tDiff.m < 0 ) then
begin
tDiff.m := tDiff.m + 60;
startHour := startHour + 1;
end;
tDiff.h := tEnd.h - startHour;
if ( tDiff.h < 0 ) then
tDiff.h := tDiff.h + 12;
end;
procedure oc( var c : char );
var
recpack: regpac;
ah,al,ch,cl,dh: byte;
begin
ah := $8;
with recpack do
begin
ax := ah shl 8 + al;
dx := ord( c );
end;
intr( $21, recpack );
end;
procedure ostr( var s: tustr );
var
i, l : integer;
begin { ostr }
l := Length( s );
for i := 1 to l do begin
oc( s[ i ] );
end;
end;
procedure onum( var n: integer );
var
s : tustr;
begin { onum }
Str( n, s );
ostr( s );
end;
procedure print_time_part( num : integer );
var c : char;
begin
c := '0';
if ( num < 10 ) then oc( c );
onum( num );
end;
procedure print_time( var t: timetype );
var c : char;
begin
print_time_part( t.h );
c := ':';
oc( c );
print_time_part( t.m );
oc( c );
print_time_part( t.s );
c := '.';
oc( c );
print_time_part( t.l );
end;
procedure print_elapsed_time( var timeStart, timeEnd: timetype );
var
timeDiff: timetype;
s : tustr;
c : char;
begin
time_difference( timeStart, timeEnd, timeDiff );
s := 'elapsed time: ';
ostr( s );
print_time( timeDiff );
c := Chr( 10 );
oc( c );
c := Char( 13 );
oc( c );
end;