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Lynx changes by Karri Kaksonen.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@4164 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz
2009-09-13 13:37:44 +00:00
parent e035323ab4
commit c9de0e6841
4 changed files with 58 additions and 13 deletions
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27
doc/lynx.sgml
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@@ -125,14 +125,29 @@ single-buffer device set draw page and view page to the same value 0 or 1;
The TGI driver has a few Lynx-specific extensions.
Calling tgi_ioctl(0, spr) will display a standard Lynx sprite on screen.
Calling tgi_sprite(spr) or tgi_ioctl(0, spr) will display a standard Lynx
sprite on screen.
Calling tgi_ioctl(1, 0) will do a flip screen. If you decide to flip the
screen then it may be a good idea to call the install-routine for the
joystick to get that flipped too.
Calling tgi_flip() or tgi_ioctl(1, 0) will do a flip screen.
Calling tgi_ioctl(2, bgindex) will set the text background color to the index
defined by bgindex. If bgindex is 0 then the background color is transparent.
Calling tgi_setbgcolor(bgcolor) or tgi_ioctl(2, bgindex) will set the text
background color to the index defined by bgindex. If bgindex is 0 then the
background color is transparent.
To set the framerate of the display hardware call tgi_setframerate(rate) or
tgi_ioctl(3, rate). The supported framerates are 50, 60 and 75 frames per
second. Actually there is no real reason to use anything else than 75 frames
per second.
To check if the drawing engine is busy with the previous swap you can
call tgi_busy or tgi_ioctl(4, 0). It returns 0 if idle and 1 if busy
To update displays you can call tgi_updatedisplay() or tgi_ioctl(4, 1) it
will wait for the next VBL interrupt and set the draw buffer to the
view buffer. The draw buffer is also changed to (drawbuffer xor 1).
Set an address for a subroutine you want to call at every VBL by calling
tgi_setvblhook(addr) or tgi_ioctl(5, addr).
<sect1>Extended memory drivers<p>