=> R0 = left X (inclusive)
R1 = top Y (inclusive)
R2 = right X (exclusive)
R3 = bottom Y (exclusive)
R4 = colour (filled word - see ColourTrans_ReturnColourNumber)
<= R0 - R12 corrupted
This SWI performs fast plotting of rectangles. It is used internally as a
drop in replacement for the operating system's routines (if r_flags bit 4
is set).
The routine doesn't clip to the graphics window. It would be inefficient for
it to do so - typically the graphics window co-ordinates only need to be read
once for a number of rectangles.
Coordinates are in pixels, (0,0) at top left.
It is required that R2 > R0, and R3 > R1.
All co-ordinates must be positive and within display bounds.
[sh-index] Back to list of manuals
|
| |
