Apple-2-SW/apple2_hgr_font_tutorial
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Added Page and Fig. for UTA2E

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michaelangel007 2016-01-12 14:39:31 -08:00
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README.md
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@ -265,13 +265,14 @@ The `TEXT` screen is 40x24 characters. The high resolution graphics `HGR` screen
Unfortunately, the data for the TEXT ROM 25123 hardware chip is **not** accessible from the 6502 unlike say the [IBM PC BIOS Character Sets](http://nerdlypleasures.blogspot.com/2015/04/ibm-character-fonts.html). :-/ T his means you will need to manually enter in the 8 bytes/character. :-( The good news is that I've already done this so you can copy / paste. :-)
You can find a picture of the Apple ][ ROM text font on Page 8-9, Figure 8.4 of "Understanding the Apple ]\["
https://archive.org/stream/understanding_the_apple_ii#page/n203/mode/2up
You can find a picture of the Apple ][ ROM text font on Page 8-9, Figure 8.4 of ["Understanding the Apple ]\["](https://archive.org/stream/understanding_the_apple_ii#page/n203/mode/2up)
![Apple 1 Font](pics/apple1_font.png)
We're actually going to use the Apple //e ROM text font since it has lower case and the famous "Mouse Text" glyphs.
Page 8-25, Figure 8.8 of ["Understanding the Apple //e"](https://archive.org/stream/Understanding_the_Apple_IIe#page/n233/mode/2up)
![Apple 2e Font](pics/apple2e_font.png)
### HGR bytes are reversed