diff --git a/README.md b/README.md index fb70657..901ded1 100644 --- a/README.md +++ b/README.md @@ -106,6 +106,9 @@ When you are at the Applesoft `]` prompt type in (or paste) the following: FC58G 400:41 +![Screenshot TEXT flash A](pics/text_flash_a.png?raw=true) + + We used the ASCII character `A` which has a hex value 0x41. Hmm, OK, so we see an `A` but why is it flashing??
@@ -118,12 +121,24 @@ The 40x24 text screen of the Apple is _"memory-mapped"_ -- that is by directly s 400:01 41 C1 +![Screenshot TEXT inverse A](pics/text_inverse_a.png?raw=true) + The control characters show up in `inverse`, ASCII characters show up `flashing`, and our normal character requires the high bit to be set. 0x41 + 080 = 0xC1.
-A slight fun diversion: If you are on an enhanced Apple //e or //c we can activate a 2nd character set called `Mouse Text`. This replaces all the flashing text with special drawing charactes: +A slight fun diversion: If you are on an enhanced Apple //e or //c we can activate a 2nd character set called `Mouse Text`. This replaces all the flashing text with special drawing characters that help make a text based UI. +This is what the full 32 Mouse Text glyphs look like: + +![Screenshot ASCII Font 7x8](pics/ascii_table_1_font7x8.png?raw=true) + +Anyways, enter in: + +``` C00F:1 +``` + +![Screenshot TEXT mousetext A](pics/text_mousetext_a.png?raw=true) You should see the flashing `A` has been replaced with an open apple symbol. @@ -140,6 +155,8 @@ If we switch to the HGR screen and tried to enter in 0x41 what would happen? (Ig F3E2G ; `HGR` 2000:41 ; A +![Screenshot 0](pics/hgrfont_00.png?raw=true) + Hmm, that doesn't look like an `A` at all, only gibberish -- 2 dots. :-/ (If you see 2 magenta dots ignore the color for now.) # A Solution: @@ -2594,7 +2611,7 @@ Let's display our new glyphs at row 12. ![Screenshot ASCII Table Font BB S2](pics/ascii_table_s2_fontbb.png?raw=true) -While that matches the style of `5` / `6` it doesn't match the round style of `A` / `B`. +While that matches the style of `5` it doesn't match the style of `A`. Let's fix the top and bottom rows. ``` @@ -2901,14 +2918,15 @@ The round corners of `A` are **sans serif**. Let's make the `M` consistent: While the `7` is not bad, we could do a very minor touchup. -# What's Next? +# What's next? -What's left to do? Quite a few things actually: +What's left? Quite a few things actually: + + * Copy the 80-Column text screen to DHGR (Double High Resolution) + * Hook into the COUT so all text appears onto the HGR or DHGR screen + * Other 7x8 fonts + * Other non-7x8 fonts - * Copy the 80-Column text screen to the DHGR (Double High Resolution Graphics) screen, - * Hook into the COUT so all text appears onto the HGR or DHGR screen automatically, - * non-grid aligned (proportional) 7x8 fonts (potentially 8 font tables), - * non 7x8 fonts, such as 4x6. # Conclusion diff --git a/pics/hgrfont_00.png b/pics/hgrfont_00.png new file mode 100644 index 0000000..a013f22 Binary files /dev/null and b/pics/hgrfont_00.png differ diff --git a/pics/hgrfont_01.png b/pics/hgrfont_01.png index 18ccbda..3fee2e9 100644 Binary files a/pics/hgrfont_01.png and b/pics/hgrfont_01.png differ diff --git a/pics/hgrfont_02.png b/pics/hgrfont_02.png index 9abeee5..83ab5e8 100644 Binary files a/pics/hgrfont_02.png and b/pics/hgrfont_02.png differ diff --git a/pics/hgrfont_03.png b/pics/hgrfont_03.png index fff1fec..dd505fc 100644 Binary files a/pics/hgrfont_03.png and b/pics/hgrfont_03.png differ diff --git a/pics/text_flash_a.png b/pics/text_flash_a.png new file mode 100644 index 0000000..f0e1981 Binary files /dev/null and b/pics/text_flash_a.png differ diff --git a/pics/text_inverse_a.png b/pics/text_inverse_a.png new file mode 100644 index 0000000..8416e67 Binary files /dev/null and b/pics/text_inverse_a.png differ diff --git a/pics/text_mousetext_a.png b/pics/text_mousetext_a.png new file mode 100644 index 0000000..0d00c77 Binary files /dev/null and b/pics/text_mousetext_a.png differ