Play alonga CPC This program enables you to use the keyboard of your CPC Amstrad to play tunes and entertain Auntie. As it stands the assembler listing is written for the CPC 6128 and 664 but it should run on the CPC 464. The Basic listing is designed for the 6128 keyboard: It will work with the 464 but some of the keys are not in a logical place on the keyboard.
This is because the 6128 keypad is adjacent to the main keyboard and the 464 keypad is separated from the QWERTY bit. When typing in the Basic listing you should be especially careful with the last number on each data line. This is a subtotal for the line and is your guarantee of easy debugging. The program stops and informs you if there is an error, and will give you a line to check. If you get an error in the sum total then you have to check all the 'data lines.
Save the program before running it, as wrong numbers may cause it to hang up the machine and you will lose all your hard work. Even if it is 100 per cent correct when the program runs you will not be able to save it. Provided everything is OK the machine code is set up and called. The screen clears and you are asked if you wish to use the preset envelopes built into the program - hit Y or N accordingly.
If you already have envelopes defihed then you can use up to nine of them. You could also define envelopes 6 to 9 before running the program and use them with those which are provided. Next you will get a screen with information about which keys do what. You can use up to nine tone and amplitude envelopes over seven octaves. The Caps lock produces the note G and that row of keys - right up to the f3, which is the B - corresponds to the white keys on the piano.
The row above equals the black keys, so you have two and a half octaves to play with before resorting to the octave shift facility.
Hit a number from 0 to 5 to change to the corresponding octave. Control and a number changes the tone envelope, while shift and a number changes the volume envelope. Don't worry about remembering this, it is all explained onscreen You can play up to three notes at a time which is handy for chording. It really sounds best through a quality amplifier in mono mode to centralise the channels. That's when you realise how good the Amstrad sound system really is. Amstrad User #8703 | ★ AMSTRAD CPC ★ DOWNLOAD ★ |
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CPCrulez[Content Management System] v8.7-desktop/c
Page créée en 508 millisecondes et consultée 1825 foisL'Amstrad CPC est une machine 8 bits à base d'un Z80 à 4MHz. Le premier de la gamme fut le CPC 464 en 1984, équipé d'un lecteur de cassettes intégré il se plaçait en concurrent du Commodore C64 beaucoup plus compliqué à utiliser et plus cher. Ce fut un réel succès et sorti cette même années le CPC 664 équipé d'un lecteur de disquettes trois pouces intégré. Sa vie fut de courte durée puisqu'en 1985 il fut remplacé par le CPC 6128 qui était plus compact, plus soigné et surtout qui avait 128Ko de RAM au lieu de 64Ko. |
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