Download e-book for iPad: Assembly language programming for the Atari computers by Mark Chasin

By Mark Chasin

ISBN-10: 0070106797

ISBN-13: 9780070106796

Show description

Read Online or Download Assembly language programming for the Atari computers PDF

Best games books

Download e-book for iPad: The 12-Minute Sex Solution: Have Electrifying Sex in New by Robin Westen

Would you like to have intercourse on a daily basis, yet don't imagine you and your associate have time? reconsider! fresh reports recommend that either women and men can achieve top arousal in precisely 12 minutes—which potential you could slot in a bit sex-capade whereas the cupcakes are baking, or the children are outdoors enjoying, or in the course of half-time, or each time you're feeling love it! the key lies in realizing a few well-positioned concepts and strikes, that's precisely what you'll locate contained in the pages of The 12-Minute intercourse Solution.

Written by means of specialist intercourse suggestion columnist Robin Westen, the a hundred eventualities during this ebook supply a true process for having nice, extra common intercourse, and a happier dating and more suitable intimacy hence. From foreplay video games like Penis therapeutic massage for sofa Potatoes, to sex video games like solid Vibrations: intercourse at the Spin Cycle, you'll easy methods to placed intercourse again at the precedence checklist and delight again into the bedroom.

Read e-book online Word Nerd: Dispatches from the Games, Grammar, and Geek PDF

Starting his occupation on a lark as a contract contributor to SCRABBLE information, John D. Williams fell down a rabbit gap inhabited by means of players, geeks, and the grammar police. For twenty-five years, because the govt director of the nationwide SCRABBLE organization, Williams served because the reliable spokesperson for the sport, and because the intermediary among legions of fanatical word-game enthusiasts and the legit model.

Download e-book for kindle: Chess for Children by Murray Chandler, Helen Milligan

With this captivating ebook, young ones will relish studying the fundamental strikes of chess - the most well-liked and demanding process online game of all. all of the ideas of chess are in actual fact defined, step-by-step, assuming no past wisdom. the teachings are strengthened by means of the creative stories that George is informed through his puppy alligator Kirsty, self-proclaimed Grand Alligator of chess.

Additional info for Assembly language programming for the Atari computers

Sample text

There are cautions to observe when using these instructions for this purpose, however, as will be described in Appendix I. Learning Assembly Language 48 The three logical instructions, AND, EOR, and ORA, are simply three ways of comparing two numbers bit by bit. They take the binary forms of the two numbers being compared, and, depending on whether both numbers contain a one or a zero in each bit, produce different results. The AND instruction says "If both bits are 1, the result will also have a 1 in that position.

We also know that we cannot add 12 to the value stored in memory location 752 directly. In order to do this in BASIC, the following program would be required: 10 1= PEEK(752) 20 1 = 1+12 30 POKE 752,1 What we did was pull out the value stored in memory location 752, increase it by 12, and put the new value back into memory location 752. How did we increase the value by 12? We used the accumulator to increase the value of I by 12 in line 20. How we did this, and the exact instructions required for this manipulation, will be covered later.

For example, BASIC has two addressing modes. The first is a direct mode in which the memory location (address) in question is specified directly, for example : 20 POKE 752,1 25 V=PEEK(764) Line 20 tells the computer to put the value 1 into memory location 752. Line 25 tells the computer to look directly into memory location 764, get the value stored there, and then store this value into a variable called V. This direct accessing of one particular memory location is called direct addressing. The second system used in BASI C is more subtle, and is also implied by line 25 above.

Download PDF sample

Assembly language programming for the Atari computers by Mark Chasin

by John

Rated 4.72 of 5 – based on 33 votes

Categories: Games