Apple-2-SW/apple2_hgr_font_tutorial
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Added note about broken emulators

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Michaelangel007 2016-01-10 08:17:38 -08:00
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README.md
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@ -32,6 +32,7 @@
## Solution 2: ScrollHgrUpPixel()
## References
## Introduction
A lot of people in comp.sys.apple2.programmer and other places on the internet have wondered how to "print" text onto the Apple's High Resolution Graphics (HGR) screen. Here's a tutorial on "6502 Font Blitting."
@ -40,15 +41,22 @@ A lot of people in comp.sys.apple2.programmer and other places on the internet h
Fire up your favorite Apple emulator (*cough* AppleWin) or real hardware.
Note: If you use:
If you use:
* [AppleWin](https://github.com/AppleWin/AppleWin) press `F2` (to reboot), `Ctrl-F2` to Ctrl-Reset, and then press `F9` until you get a Monochrome screen.
* [Virtual II](http://www.virtualii.com/) press `Ctrl-F12` to reset.
There are other emulators written in Javascript but they are poor due to 2 reasons:
* Don't support paste -- you'll be forced to manually enter in the hex code. :-/
* Don't emulate the half-pixel shift of real hardware at all.
* [Apple 2 js](https://www.scullinsteel.com/apple2/) make sure you select:
Options, [x] Green Screen
* If you use [Virtual II](http://www.virtualii.com/) press `Ctrl-F12` to reset.
* If you use [David's Caldwall A2 js](http://porkrind.org/a2/)
## Functions we want & will write