Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.sys.apple2.programmer > #336

Re: Bill Budge Preshift-table graphics

From aiiadict@gmail.com
Newsgroups comp.sys.apple2.programmer
Subject Re: Bill Budge Preshift-table graphics
Date 2012-07-19 08:06 -0700
Organization http://groups.google.com
Message-ID <e9d339d5-76b2-4820-b7e7-a6f7b51a5c78@googlegroups.com> (permalink)
References <5d8347a8-2c21-4595-826c-61944a73a9e4@googlegroups.com> <92d13f0b-f809-4442-82ca-de723e722082@googlegroups.com> <727941697364330046.484059mjmahon-aol.com@news.giganews.com>

Show all headers | View raw


On Thursday, July 19, 2012 12:00:27 AM UTC-7, mjm...@aol.com wrote:
> 
> I like Merlin&#39;s use of &gt; for the high byte. Not only does it look like
> &quot;greater&quot;, it also &quot;points&quot; to the little-endian high byte. 


load High byte into accumulator:

LDA >byte

or 

LDA <byte

in math, > is greater than.  < is less than.

We read right to left...

---    LDA >byte makes more sense to me.  I read "Load Accumulator with 'greater than' byte".  Greater than = higher, more.  Less than = lower.

Rich

Back to comp.sys.apple2.programmer | Previous | NextPrevious in thread | Next in thread | Find similar


Thread

Bill Budge Preshift-table graphics aiiadict@gmail.com - 2012-07-15 08:15 -0700
  Re: Bill Budge Preshift-table graphics aiiadict@gmail.com - 2012-07-15 11:12 -0700
  Re: Bill Budge Preshift-table graphics aiiadict@gmail.com - 2012-07-15 11:19 -0700
    Re: Bill Budge Preshift-table graphics twalkowski <twalkowski32@att.net> - 2012-07-15 19:46 -0700
      Re: Bill Budge Preshift-table graphics aiiadict@gmail.com - 2012-07-16 08:02 -0700
        Re: Bill Budge Preshift-table graphics aiiadict@gmail.com - 2012-07-16 11:28 -0700
        Re: Bill Budge Preshift-table graphics twalkowski <twalkowski32@att.net> - 2012-07-16 11:23 -0700
          Re: Bill Budge Preshift-table graphics Michael J. Mahon <mjmahon@aol.com> - 2012-07-19 02:00 -0500
            Re: Bill Budge Preshift-table graphics twalkowski <twalkowski32@att.net> - 2012-07-19 07:34 -0700
            Re: Bill Budge Preshift-table graphics aiiadict@gmail.com - 2012-07-19 08:06 -0700
  Re: Bill Budge Preshift-table graphics aiiadict@gmail.com - 2012-07-16 08:04 -0700
  Re: Bill Budge Preshift-table graphics aiiadict@gmail.com - 2012-07-17 19:41 -0700

csiph-web