Apple-2-SW/apple2_hgr_font_tutorial
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Fix Apple || to Apple II

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michaelangel007 2016-01-10 14:37:14 -08:00
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README.md
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@ -124,13 +124,12 @@ There are couple of things we need to discuss first. The preceeding example show
First, we should notice that video memory is non-linear. :-( You'll want to get familiar with the HGR address for the various Y scanlines:
"Understanding the Apple ||{, page 5-14 has this table:
"Understanding the Apple ||", page 5-14 has this table `HGR Memory-mapped IO`:
* https://archive.org/stream/understanding_the_apple_ii#page/n105/mode/2up
With all the decimal cruft removed:
`HGR Memory-mapped IO`:
| Y |Address| Y |Address| Y |Address| Screen Hole |
|----:|:-----:|----:|-------|----:|:-----:|:------------:|
| 0 | $2000 | 64 | $2028 | 128 | $2050 | $2078..$207F |