Apple-2-SW
/
Applecorn
mirror of https://github.com/bobbimanners/Applecorn.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Added VDU 23 to README.md.

This commit is contained in:
Bobbi Webber-Manners 2022-12-29 16:54:19 -05:00
parent a0dafe2437
commit 403baeeeff
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
README.md
View File

@ -144,7 +144,7 @@ program in memory.
- If you happen to have an Apple IIgs with and ADB Extended Keyboard, or
a BMOW Wombat USB keyboard adapter, the function keys F1-F10 should
work (F10 is mapped to the BBC Micro f0).
- In `MODE 0` and `MODE 1` the BBC BASIC `VDU 19` statement may be used
- In `MODE 0` and `MODE 1`, the BBC BASIC `VDU 19` statement may be used
to assign colours to the palette. This means that you can use any four
colours chosen from the GS's 4096 colours for `MODE 0` and any sixteen
colours in `MODE 1`. There are two ways to use `VDU 19`:
@ -154,6 +154,12 @@ program in memory.
solid colours, rather than 8 solid and eight flashing.)
- `VDU 19,L,16,R,G,B` - Sets logical colour L to the R,G,B values given.
This gives access to the entire 4096 colour gamut of the GS.
- In `MODE 0` and `MODE 1`, the BBC BASIC `VDU 23` statement may be used
to define user-defined graphics characters. Characters from 32 to 255
may be redefined.
- For example, `VDU 23,240,28,28,8,127,8,20,34,65` makes character 240
into a little stick figure.
### 'Sideways ROM' Support