diff --git a/README.md b/README.md index 741f612..d12be26 100644 --- a/README.md +++ b/README.md @@ -1,6 +1,6 @@ #Apple ]\[ HGR Font Tutorial -Revision: 7, Jan 10, 2016. +Revision: 8, Jan 10, 2016. # Table of Contents @@ -330,15 +330,15 @@ Enter in: We actually _also_ need to moving the left-edge pixel over by 1 so it appears in the correct location when shifted: -2304:22 -2704:92 ; -2B04:14 -2F04:8C ; -3304:8 -3704:8 -3B04:8 + 2304:22 + 2704:92 ; + 2B04:14 + 2F04:8C ; + 3304:8 + 3704:8 + 3B04:8 -Ah-ha! We've got "smooth" `Y`. +Ah-ha! We've got a "smooth" `Y`. ![Screenshot 6](pics/hgrfont_06.png?raw=true) @@ -346,7 +346,7 @@ Ah-ha! We've got "smooth" `Y`. We're going to ignore the half-pixel shift since it is easy to touch up the font data later if we wish. -At the beginning we said to view the HGR screen in monochrome; Notice how the extra colors make the Hi-Res text much harder to read. If you are running on real hardware the Apple Color Composite Monitor had a push-button on the front to toggle the screen between color and monochrome. Now we know why! +At the beginning we said to view the HGR screen in monochrome. Notice how the extra colors make the Hi-Res text much harder to read. If you are running on real hardware the Apple Color Composite Monitor had a push-button on the front to toggle the screen between color and monochrome. Now we know why! ![Screenshot 7](pics/hgrfont_07.png?raw=true) @@ -367,7 +367,7 @@ Since the font data chews up memory anyways we'll "splurge" and use the full 128 128 glyphs * 8 bytes/glyph = 1024 bytes = 1K of data. -Ouch 1K of our precious 64K! Now we know why all this data was in ROM. +Ouch! We're using 1K of our precious 64K. Now we know why all those font glyphs was in a ROM chip. ### Raw Font Data @@ -567,11 +567,12 @@ If you were wondering how this data was generated, you see the great thing about ``` -Note: If you get a retarded _Uncaught SecurityError: Failed to execute 'getImageData' on 'CanvasRenderingContext2D': The canvas has been tainted by cross-origin data._ with Chrome you need to start it with the command line: +Note: If you get a retarded `Uncaught SecurityError: Failed to execute 'getImageData' on 'CanvasRenderingContext2D': The canvas has been tainted by cross-origin data.` with Chrome you need to start it with the command line: --allow-file-access-from-files -Another solution is to use a web browser that isn't "broken" such as Firefox, etc. +Another solution is to use a web browser that isn't "broken" such as Firefox, etc. when trying to read _local_ files. + ## Font -> Screen Memory Trace