Last edited by Prentice-Hall
24.06.2021 | History

3 edition of Commodore 64/VIC 20 BASIC found in the catalog.

Commodore 64/VIC 20 BASIC

International Edition

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Published by Administrator in Prentice-Hall

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      • A Spectrum book.Includes index.

        LC Classifications1983
        The Physical Object
        Paginationxvi, 73 p. :
        Number of Pages52
        ID Numbers
        ISBN 100131522817

        nodata File Size: 6MB.

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Commodore 64/VIC 20 BASIC by Prentice-Hall Download PDF EPUB FB2

Thus Integer math is SLOWER! They should be reversed as shown above. NEXT - The only real loop construct in BASIC Syntax: OPEN[, [, ]] The is an optional integer in the range 0-15 with the following meaning : 0. Therefore, what actually gets displayed on screen is determined by the contents of the character set. UPDATE: February 20, 2018 Understanding the difference between PETSCII values and Screen Codes can be confusing. 2 127] Precision: 32 bit mantisse approx.

The lists you will find if you search the internet for PETSCII Table do not all agree with one another, nor do they all agree with older listings found in books such as The Complete Commodore Inner Space Anthology. grey PRINT TYA 153 99 lt. The data are rearranged here to best suit the format of a webpage, and a couple of pretty big errors in the Inner Space Anthology listing have been corrected.

If you are looking for a BASIC tutorial, take a look at the original VIC-20 Commodore 64/VIC 20 BASIC. This provides a space of 192 values, however, in practice 22 of even those values are not defined.

Power20 Documentation

I want to explain my reasons for the changes, even if others would not agree with me. The tables above are divided into 8 blocks of 32 characters, because PETSCII itself is divided into 8 blocks.

Hence the existence of the term all—caps, and the existence of all—caps fonts. I have made some corrections, as noted above, but I've also made some changes. In fact, in ancient writing, Latin, Greek, and Hebrew, there were no small letters, that is, no.

The Character Sets Here are the character set images, to help Commodore 64/VIC 20 BASIC how the Screen Codes work and differ between them. Digital Ocean is a cloud hosting platform, built for developers. red DEF STX Z,X 151 97 dk. There are 256 Screen Codes. They should be uppercase as shown above. Obviously, it cannot be the case that there is a one—to—one relationship between PETSCII values and Screen Codes.

The 8 blocks are further subdivided into the low 4 blocks, and the high 4 blocks, as indicated in the table of contents links at the top of the SuperChart.

It may simply be that Commodore thought having more graphics characters to work with in exchange for having only one case of alphabetic characters seemed like a good trade off.