=> R0 = buffer for bitmap (size 8*256 = &800 = 2k)
<= R0 and flags corrupted.
This reads the standard system characters bitmaps via OS_Word
calls. It reads them in 1 bit per pixel (8 bytes per character) form suitable
for ZapRedraw_ConvertBitmap to convert it to a form usable for
ZapRedraw_RedrawArea. To do this, it just bit-reverses the information read
by OS_Word 10. It only reads characters &20-&FF, leaving
0-&1F untouched. The bit reversing is done efficiently so this call is fairly
fast.
[sh-index] Back to list of manuals
|
| |
