pascal matriks

program matrik;
uses crt;
type data = array[1..5,1..5] of integer;
var
matrikI,matrikII : data;
baris,kolom,pil : integer;procedure isi;
var i,j :integer;
begin
writeln('Penentuan ORDO MATRIK I');
write('Masukan banyak baris matrik I : ');readln(baris);
write('Masukan banyak kolom matrik I : ');readln(kolom);
for i:=1 to baris do
for j:=1 to kolom do
begin
gotoxy(j*10,i*5);
readln(matrikI[i,j]);
end;
clrscr;
writeln('Penentuan ORDO MATRIK II');
write('Masukan banyak baris matrik II : ');
readln(baris);
write('Masukan banyak kolom matrik II : ');
readln(kolom);
for i:=1 to baris do
for j:=1 to kolom do
begin gotoxy(j*10,i*5);
readln(matrikII[i,j]);
end;
end;procedure gagal;
begin
writeln('Program Dibatalkan');
end;procedure kali(a1,a2 : data);
var
hasil:data;
i,j,z:integer;
begin
clrscr;
for i:=1 to baris do
for j:=1 to kolom do
begin
hasil[i,j]:=0;
for z:=1 to baris do
hasil[i,j]:=hasil[i,j]+matrikI[i,z]*matrikII[z,j];
end;
clrscr;
writeln('Hasil perkalian');
for i:=1 to baris do
for j:=1 to kolom do
begin gotoxy(j*10,i*5);
write(hasil[i,j]);
end;
end;
begin
clrscr;
writeln('MENU');
writeln('Ketik(1) Perkalian Matrik');
writeln('ketik(2) Batal Program');
write('pilihan = ');
readln(pil);
clrscr;
case pil of
1:begin
isi;
kali(matrikI,matrikII);
end;
2:begin
gagal;
end;
end;
readln
end.