Home » CEEFAX disks » telesoftware15.adl » 06-05-89/SINE_PAS
06-05-89/SINE_PAS
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » CEEFAX disks » telesoftware15.adl |
| Filename: | 06-05-89/SINE_PAS |
| Read OK: | ✔ |
| File size: | 09F9 bytes |
| Load address: | 0000 |
| Exec address: | FFFFFFFF |
File contents
PROGRAM sinedemo;
{ This program draws a sine wave, using PASPC graphics.
Date: 8 June 1988
Copyright (c) 1988 Prospero Software }
{$i paspc}
LABEL
999 ;
CONST
pi = 3.1415826;
VAR x_max, y_max, centre, height, i, border: integer2;
scale: real; ch: char ; scan: byte ;
PROCEDURE dodraw ( x1, y1, x2, y2: integer2; color: colorrange ) ;
VAR temppos: integer2;
BEGIN
CASE adaptor OF
monoadap : BEGIN
gotoxy ( x1, centre );
putchar ( chr (196), 80-2*border );
FOR temppos := y1 TO y2 DO
BEGIN
gotoxy ( x1, temppos );
putchar ( chr (179), 1 );
END {for};
gotoxy ( x1, centre );
putchar ( chr ( 195), 1 );
END;
otherwise draw ( x1, y1, x2, y2, color );
END {case}
END {dodraw};
PROCEDURE doplot ( x1, y1 : integer2; color: colorrange ) ;
VAR specialchar: char;
BEGIN
case adaptor of
monoadap : BEGIN
gotoxy (x1, y1);
CASE color OF
1 : specialchar := '*' ;
3 : specialchar := 'o' ;
otherwise specialchar := '+' ;
END {case};
putchar ( specialchar, 1 );
END;
otherwise plot ( x1, y1, color );
END {case};
END {doplot};
BEGIN { main program }
initscreen ;
case adaptor of
cgadap : BEGIN
setscreenmode ( cgahires ) ;
cgacolor ( green ) ;
x_max := 639;
y_max := 199;
border := 10;
END;
egadap : BEGIN
setscreenmode ( egagraph ) ;
x_max := 639;
y_max := 349;
border := 10;
END;
monoadap : BEGIN
x_max := 80;
y_max := 25;
border := 1;
END;
otherwise GOTO 999;
END {case};
centre := y_max DIV 2;
height := centre - border;
scale := 2 * pi / (x_max - 2*border);
clrscr;
dodraw(border, border, border, y_max - border, 1);
IF adaptor <> monoadap THEN
draw(border, centre, x_max - border, centre, 1);
FOR i := 0 TO x_max - 2*border DO
BEGIN
doplot(i + border, trunc (centre + height * sin(i * scale)), 1);
doplot(i + border, trunc (centre + height * sin(i * scale * 2)), 3);
IF adaptor <> monoadap THEN
BEGIN
plot(i + border, trunc (centre + height * sin(i * scale * 3)), 5);
plot(i + border, trunc (centre + height * sin(i * scale * 4)), 7);
END;
END;
GetKeyboard ( Ch, Scan ) ;
InitScreen ;
999:
END.
00000000 50 52 4f 47 52 41 4d 20 73 69 6e 65 64 65 6d 6f |PROGRAM sinedemo|
00000010 3b 0d 0a 0d 0a 7b 20 54 68 69 73 20 70 72 6f 67 |;....{ This prog|
00000020 72 61 6d 20 64 72 61 77 73 20 61 20 73 69 6e 65 |ram draws a sine|
00000030 20 77 61 76 65 2c 20 75 73 69 6e 67 20 50 41 53 | wave, using PAS|
00000040 50 43 20 67 72 61 70 68 69 63 73 2e 0d 0a 0d 0a |PC graphics.....|
00000050 20 20 44 61 74 65 3a 20 38 20 4a 75 6e 65 20 31 | Date: 8 June 1|
00000060 39 38 38 0d 0a 20 20 43 6f 70 79 72 69 67 68 74 |988.. Copyright|
00000070 20 28 63 29 20 31 39 38 38 20 50 72 6f 73 70 65 | (c) 1988 Prospe|
00000080 72 6f 20 53 6f 66 74 77 61 72 65 20 7d 0d 0a 0d |ro Software }...|
00000090 0a 7b 24 69 20 70 61 73 70 63 7d 0d 0a 0d 0a 4c |.{$i paspc}....L|
000000a0 41 42 45 4c 0d 0a 20 20 20 20 39 39 39 20 3b 0d |ABEL.. 999 ;.|
000000b0 0a 20 20 20 20 0d 0a 43 4f 4e 53 54 0d 0a 20 20 |. ..CONST.. |
000000c0 20 20 70 69 20 3d 20 33 2e 31 34 31 35 38 32 36 | pi = 3.1415826|
000000d0 3b 0d 0a 0d 0a 56 41 52 20 78 5f 6d 61 78 2c 20 |;....VAR x_max, |
000000e0 79 5f 6d 61 78 2c 20 63 65 6e 74 72 65 2c 20 68 |y_max, centre, h|
000000f0 65 69 67 68 74 2c 20 69 2c 20 62 6f 72 64 65 72 |eight, i, border|
00000100 3a 20 69 6e 74 65 67 65 72 32 3b 0d 0a 20 20 20 |: integer2;.. |
00000110 20 73 63 61 6c 65 3a 20 72 65 61 6c 3b 20 63 68 | scale: real; ch|
00000120 3a 20 63 68 61 72 20 3b 20 73 63 61 6e 3a 20 62 |: char ; scan: b|
00000130 79 74 65 20 3b 0d 0a 0d 0a 50 52 4f 43 45 44 55 |yte ;....PROCEDU|
00000140 52 45 20 64 6f 64 72 61 77 20 28 20 78 31 2c 20 |RE dodraw ( x1, |
00000150 79 31 2c 20 78 32 2c 20 79 32 3a 20 69 6e 74 65 |y1, x2, y2: inte|
00000160 67 65 72 32 3b 20 63 6f 6c 6f 72 3a 20 63 6f 6c |ger2; color: col|
00000170 6f 72 72 61 6e 67 65 20 29 20 3b 0d 0a 56 41 52 |orrange ) ;..VAR|
00000180 20 74 65 6d 70 70 6f 73 3a 20 69 6e 74 65 67 65 | temppos: intege|
00000190 72 32 3b 0d 0a 42 45 47 49 4e 0d 0a 20 20 43 41 |r2;..BEGIN.. CA|
000001a0 53 45 20 61 64 61 70 74 6f 72 20 4f 46 0d 0a 20 |SE adaptor OF.. |
000001b0 20 20 20 6d 6f 6e 6f 61 64 61 70 20 3a 20 42 45 | monoadap : BE|
000001c0 47 49 4e 0d 0a 09 20 20 20 20 20 20 20 20 20 67 |GIN... g|
000001d0 6f 74 6f 78 79 20 28 20 78 31 2c 20 63 65 6e 74 |otoxy ( x1, cent|
000001e0 72 65 20 29 3b 0d 0a 09 20 20 20 20 20 20 20 20 |re );... |
000001f0 20 70 75 74 63 68 61 72 20 28 20 63 68 72 20 28 | putchar ( chr (|
00000200 31 39 36 29 2c 20 38 30 2d 32 2a 62 6f 72 64 65 |196), 80-2*borde|
00000210 72 20 29 3b 0d 0a 09 20 20 20 20 20 20 20 20 20 |r );... |
00000220 46 4f 52 20 74 65 6d 70 70 6f 73 20 3a 3d 20 79 |FOR temppos := y|
00000230 31 20 54 4f 20 79 32 20 44 4f 0d 0a 09 20 20 20 |1 TO y2 DO... |
00000240 20 20 20 20 20 20 20 20 42 45 47 49 4e 0d 0a 09 | BEGIN...|
00000250 20 20 20 20 20 20 20 20 20 20 20 20 20 67 6f 74 | got|
00000260 6f 78 79 20 28 20 78 31 2c 20 74 65 6d 70 70 6f |oxy ( x1, temppo|
00000270 73 20 29 3b 20 0d 0a 09 20 20 20 20 20 20 20 20 |s ); ... |
00000280 20 20 20 20 20 70 75 74 63 68 61 72 20 28 20 63 | putchar ( c|
00000290 68 72 20 28 31 37 39 29 2c 20 31 20 29 3b 0d 0a |hr (179), 1 );..|
000002a0 09 20 20 20 20 20 20 20 20 20 20 20 45 4e 44 20 |. END |
000002b0 7b 66 6f 72 7d 3b 0d 0a 09 20 20 20 20 20 20 20 |{for};... |
000002c0 20 20 67 6f 74 6f 78 79 20 28 20 78 31 2c 20 63 | gotoxy ( x1, c|
000002d0 65 6e 74 72 65 20 29 3b 0d 0a 09 20 20 20 20 20 |entre );... |
000002e0 20 20 20 20 70 75 74 63 68 61 72 20 28 20 63 68 | putchar ( ch|
000002f0 72 20 28 20 31 39 35 29 2c 20 31 20 29 3b 0d 0a |r ( 195), 1 );..|
00000300 09 20 20 20 20 20 20 20 45 4e 44 3b 0d 0a 20 20 |. END;.. |
00000310 20 20 6f 74 68 65 72 77 69 73 65 20 64 72 61 77 | otherwise draw|
00000320 20 28 20 78 31 2c 20 79 31 2c 20 78 32 2c 20 79 | ( x1, y1, x2, y|
00000330 32 2c 20 63 6f 6c 6f 72 20 29 3b 0d 0a 20 20 45 |2, color );.. E|
00000340 4e 44 20 7b 63 61 73 65 7d 0d 0a 45 4e 44 20 7b |ND {case}..END {|
00000350 64 6f 64 72 61 77 7d 3b 0d 0a 0d 0a 50 52 4f 43 |dodraw};....PROC|
00000360 45 44 55 52 45 20 64 6f 70 6c 6f 74 20 28 20 78 |EDURE doplot ( x|
00000370 31 2c 20 79 31 20 3a 20 69 6e 74 65 67 65 72 32 |1, y1 : integer2|
00000380 3b 20 63 6f 6c 6f 72 3a 20 63 6f 6c 6f 72 72 61 |; color: colorra|
00000390 6e 67 65 20 29 20 3b 0d 0a 56 41 52 20 73 70 65 |nge ) ;..VAR spe|
000003a0 63 69 61 6c 63 68 61 72 3a 20 63 68 61 72 3b 0d |cialchar: char;.|
000003b0 0a 42 45 47 49 4e 0d 0a 20 20 63 61 73 65 20 61 |.BEGIN.. case a|
000003c0 64 61 70 74 6f 72 20 6f 66 0d 0a 20 20 20 20 6d |daptor of.. m|
000003d0 6f 6e 6f 61 64 61 70 20 3a 20 42 45 47 49 4e 0d |onoadap : BEGIN.|
000003e0 0a 09 20 20 20 20 20 20 20 20 20 67 6f 74 6f 78 |.. gotox|
000003f0 79 20 28 78 31 2c 20 79 31 29 3b 0d 0a 09 20 20 |y (x1, y1);... |
00000400 20 20 20 20 20 20 20 43 41 53 45 20 63 6f 6c 6f | CASE colo|
00000410 72 20 4f 46 0d 0a 09 20 20 20 20 20 20 20 20 20 |r OF... |
00000420 20 20 31 20 3a 20 73 70 65 63 69 61 6c 63 68 61 | 1 : specialcha|
00000430 72 20 3a 3d 20 27 2a 27 20 3b 0d 0a 09 20 20 20 |r := '*' ;... |
00000440 20 20 20 20 20 20 20 20 33 20 3a 20 73 70 65 63 | 3 : spec|
00000450 69 61 6c 63 68 61 72 20 3a 3d 20 27 6f 27 20 3b |ialchar := 'o' ;|
00000460 0d 0a 09 20 20 20 20 20 20 20 20 20 20 20 6f 74 |... ot|
00000470 68 65 72 77 69 73 65 20 73 70 65 63 69 61 6c 63 |herwise specialc|
00000480 68 61 72 20 3a 3d 20 27 2b 27 20 3b 0d 0a 09 20 |har := '+' ;... |
00000490 20 20 20 20 20 20 20 20 45 4e 44 20 7b 63 61 73 | END {cas|
000004a0 65 7d 3b 0d 0a 09 20 20 20 20 20 20 20 20 20 70 |e};... p|
000004b0 75 74 63 68 61 72 20 28 20 73 70 65 63 69 61 6c |utchar ( special|
000004c0 63 68 61 72 2c 20 31 20 29 3b 0d 0a 09 20 20 20 |char, 1 );... |
000004d0 20 20 20 20 45 4e 44 3b 0d 0a 20 20 20 20 6f 74 | END;.. ot|
000004e0 68 65 72 77 69 73 65 20 70 6c 6f 74 20 28 20 78 |herwise plot ( x|
000004f0 31 2c 20 79 31 2c 20 63 6f 6c 6f 72 20 29 3b 0d |1, y1, color );.|
00000500 0a 20 20 45 4e 44 20 7b 63 61 73 65 7d 3b 0d 0a |. END {case};..|
00000510 45 4e 44 20 7b 64 6f 70 6c 6f 74 7d 3b 0d 0a 0d |END {doplot};...|
00000520 0a 42 45 47 49 4e 20 7b 20 6d 61 69 6e 20 70 72 |.BEGIN { main pr|
00000530 6f 67 72 61 6d 20 7d 0d 0a 20 20 69 6e 69 74 73 |ogram }.. inits|
00000540 63 72 65 65 6e 20 3b 0d 0a 20 20 63 61 73 65 20 |creen ;.. case |
00000550 61 64 61 70 74 6f 72 20 6f 66 0d 0a 20 20 20 20 |adaptor of.. |
00000560 63 67 61 64 61 70 20 3a 20 42 45 47 49 4e 0d 0a |cgadap : BEGIN..|
00000570 09 20 20 20 20 20 20 20 73 65 74 73 63 72 65 65 |. setscree|
00000580 6e 6d 6f 64 65 20 28 20 63 67 61 68 69 72 65 73 |nmode ( cgahires|
00000590 20 29 20 3b 0d 0a 09 20 20 20 20 20 20 20 63 67 | ) ;... cg|
000005a0 61 63 6f 6c 6f 72 20 28 20 67 72 65 65 6e 20 29 |acolor ( green )|
000005b0 20 3b 0d 0a 09 20 20 20 20 20 20 20 78 5f 6d 61 | ;... x_ma|
000005c0 78 20 3a 3d 20 36 33 39 3b 0d 0a 09 20 20 20 20 |x := 639;... |
000005d0 20 20 20 79 5f 6d 61 78 20 3a 3d 20 31 39 39 3b | y_max := 199;|
000005e0 0d 0a 09 20 20 20 20 20 20 20 62 6f 72 64 65 72 |... border|
000005f0 20 3a 3d 20 31 30 3b 0d 0a 09 20 20 20 20 20 45 | := 10;... E|
00000600 4e 44 3b 0d 0a 20 20 20 20 65 67 61 64 61 70 20 |ND;.. egadap |
00000610 3a 20 42 45 47 49 4e 0d 0a 09 20 20 20 20 20 20 |: BEGIN... |
00000620 20 73 65 74 73 63 72 65 65 6e 6d 6f 64 65 20 28 | setscreenmode (|
00000630 20 65 67 61 67 72 61 70 68 20 29 20 3b 0d 0a 09 | egagraph ) ;...|
00000640 20 20 20 20 20 20 20 78 5f 6d 61 78 20 3a 3d 20 | x_max := |
00000650 36 33 39 3b 0d 0a 09 20 20 20 20 20 20 20 79 5f |639;... y_|
00000660 6d 61 78 20 3a 3d 20 33 34 39 3b 0d 0a 09 20 20 |max := 349;... |
00000670 20 20 20 20 20 62 6f 72 64 65 72 20 3a 3d 20 31 | border := 1|
00000680 30 3b 0d 0a 09 20 20 20 20 20 45 4e 44 3b 0d 0a |0;... END;..|
00000690 20 20 20 20 6d 6f 6e 6f 61 64 61 70 20 3a 20 42 | monoadap : B|
000006a0 45 47 49 4e 0d 0a 09 20 20 20 20 20 20 20 20 20 |EGIN... |
000006b0 78 5f 6d 61 78 20 3a 3d 20 38 30 3b 0d 0a 09 20 |x_max := 80;... |
000006c0 20 20 20 20 20 20 20 20 79 5f 6d 61 78 20 3a 3d | y_max :=|
000006d0 20 32 35 3b 0d 0a 09 20 20 20 20 20 20 20 20 20 | 25;... |
000006e0 62 6f 72 64 65 72 20 3a 3d 20 31 3b 0d 0a 09 20 |border := 1;... |
000006f0 20 20 20 20 20 20 45 4e 44 3b 0d 0a 20 20 20 20 | END;.. |
00000700 6f 74 68 65 72 77 69 73 65 20 47 4f 54 4f 20 39 |otherwise GOTO 9|
00000710 39 39 3b 0d 0a 20 20 20 20 45 4e 44 20 7b 63 61 |99;.. END {ca|
00000720 73 65 7d 3b 0d 0a 20 20 20 20 0d 0a 20 20 63 65 |se};.. .. ce|
00000730 6e 74 72 65 20 3a 3d 20 79 5f 6d 61 78 20 44 49 |ntre := y_max DI|
00000740 56 20 32 3b 0d 0a 20 20 68 65 69 67 68 74 20 3a |V 2;.. height :|
00000750 3d 20 63 65 6e 74 72 65 20 2d 20 62 6f 72 64 65 |= centre - borde|
00000760 72 3b 0d 0a 20 20 73 63 61 6c 65 20 3a 3d 20 32 |r;.. scale := 2|
00000770 20 2a 20 70 69 20 2f 20 28 78 5f 6d 61 78 20 2d | * pi / (x_max -|
00000780 20 32 2a 62 6f 72 64 65 72 29 3b 0d 0a 20 20 0d | 2*border);.. .|
00000790 0a 20 20 63 6c 72 73 63 72 3b 0d 0a 20 20 64 6f |. clrscr;.. do|
000007a0 64 72 61 77 28 62 6f 72 64 65 72 2c 20 62 6f 72 |draw(border, bor|
000007b0 64 65 72 2c 20 62 6f 72 64 65 72 2c 20 79 5f 6d |der, border, y_m|
000007c0 61 78 20 2d 20 62 6f 72 64 65 72 2c 20 31 29 3b |ax - border, 1);|
000007d0 0d 0a 20 20 49 46 20 61 64 61 70 74 6f 72 20 3c |.. IF adaptor <|
000007e0 3e 20 6d 6f 6e 6f 61 64 61 70 20 54 48 45 4e 0d |> monoadap THEN.|
000007f0 0a 20 20 20 20 64 72 61 77 28 62 6f 72 64 65 72 |. draw(border|
00000800 2c 20 63 65 6e 74 72 65 2c 20 78 5f 6d 61 78 20 |, centre, x_max |
00000810 2d 20 62 6f 72 64 65 72 2c 20 63 65 6e 74 72 65 |- border, centre|
00000820 2c 20 31 29 3b 0d 0a 20 20 20 20 20 20 0d 0a 20 |, 1);.. .. |
00000830 20 46 4f 52 20 69 20 3a 3d 20 30 20 54 4f 20 78 | FOR i := 0 TO x|
00000840 5f 6d 61 78 20 2d 20 32 2a 62 6f 72 64 65 72 20 |_max - 2*border |
00000850 44 4f 0d 0a 20 20 20 20 42 45 47 49 4e 0d 0a 20 |DO.. BEGIN.. |
00000860 20 20 20 20 20 64 6f 70 6c 6f 74 28 69 20 2b 20 | doplot(i + |
00000870 62 6f 72 64 65 72 2c 20 74 72 75 6e 63 20 28 63 |border, trunc (c|
00000880 65 6e 74 72 65 20 2b 20 68 65 69 67 68 74 20 2a |entre + height *|
00000890 20 73 69 6e 28 69 20 2a 20 73 63 61 6c 65 29 29 | sin(i * scale))|
000008a0 2c 20 31 29 3b 0d 0a 20 20 20 20 20 20 64 6f 70 |, 1);.. dop|
000008b0 6c 6f 74 28 69 20 2b 20 62 6f 72 64 65 72 2c 20 |lot(i + border, |
000008c0 74 72 75 6e 63 20 28 63 65 6e 74 72 65 20 2b 20 |trunc (centre + |
000008d0 68 65 69 67 68 74 20 2a 20 73 69 6e 28 69 20 2a |height * sin(i *|
000008e0 20 73 63 61 6c 65 20 2a 20 32 29 29 2c 20 33 29 | scale * 2)), 3)|
000008f0 3b 0d 0a 20 20 20 20 20 20 49 46 20 61 64 61 70 |;.. IF adap|
00000900 74 6f 72 20 3c 3e 20 6d 6f 6e 6f 61 64 61 70 20 |tor <> monoadap |
00000910 54 48 45 4e 0d 0a 09 42 45 47 49 4e 0d 0a 09 20 |THEN...BEGIN... |
00000920 20 70 6c 6f 74 28 69 20 2b 20 62 6f 72 64 65 72 | plot(i + border|
00000930 2c 20 74 72 75 6e 63 20 28 63 65 6e 74 72 65 20 |, trunc (centre |
00000940 2b 20 68 65 69 67 68 74 20 2a 20 73 69 6e 28 69 |+ height * sin(i|
00000950 20 2a 20 73 63 61 6c 65 20 2a 20 33 29 29 2c 20 | * scale * 3)), |
00000960 35 29 3b 0d 0a 09 20 20 70 6c 6f 74 28 69 20 2b |5);... plot(i +|
00000970 20 62 6f 72 64 65 72 2c 20 74 72 75 6e 63 20 28 | border, trunc (|
00000980 63 65 6e 74 72 65 20 2b 20 68 65 69 67 68 74 20 |centre + height |
00000990 2a 20 73 69 6e 28 69 20 2a 20 73 63 61 6c 65 20 |* sin(i * scale |
000009a0 2a 20 34 29 29 2c 20 37 29 3b 0d 0a 09 45 4e 44 |* 4)), 7);...END|
000009b0 3b 0d 0a 20 20 20 20 45 4e 44 3b 0d 0a 20 20 47 |;.. END;.. G|
000009c0 65 74 4b 65 79 62 6f 61 72 64 20 28 20 43 68 2c |etKeyboard ( Ch,|
000009d0 20 53 63 61 6e 20 29 20 3b 0d 0a 20 20 49 6e 69 | Scan ) ;.. Ini|
000009e0 74 53 63 72 65 65 6e 20 3b 0d 0a 39 39 39 3a 0d |tScreen ;..999:.|
000009f0 0a 45 4e 44 2e 0d 0a 0d 0a |.END.....|
000009f9 
06-05-89/SINE_PAS.m0
06-05-89/SINE_PAS.m1
06-05-89/SINE_PAS.m2
06-05-89/SINE_PAS.m4
06-05-89/SINE_PAS.m5
.