Ready Made Machine Language Routines for the AmstradLittérature English
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One of the daunting prospects that lies ahead of any machine code programmer is the writing of small routines for the machine of interest to perform particular tasks, such as printing strings of characters, saving areas of data on tape and inputting strings of characters from the keyboard. These routines often then turn up in all sorts of different programs, but the initial work of producing these routines can be a little tedious. The routines provided in this book will hopefully solve the problem. They have all been tested on the Amstrad CPC 464 Tape System, but should all work with the 664 machine or the standard machine with disks, although some relocation may be necessary in some cases. Screen routines given have been designed for use on a screen without windows, but this should give no problems. Wherever possible, routines will run equally well in all screen modes, and many can be used as useful subroutines for the BASIC programmer.

The programs were written using the ROM based MAXAM Assembler. I would like to thank my publishers for giving the idea the go ahead, and would like to acknowledge the help of Amsoft in the preparation of the book. Finally, I'd like to dedicate this book to my Mother and Father, for many years of tolerance beyond the call of duty!

Also, thanks to several local cats, who proved that it's possible to program a micro with a cat trying to attack you!

Joe Pritchard, Nottingham, 1985

★ YEAR: 1985

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L'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.