BSS memory is taken from LCD frame buffer area

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Apply diff to zaxxon_hello_world in samples
2. build
3. run

What is the expected output? What do you see instead?

Instead of hello world with a small black box (and the menu screen still shows).

get mostly black screen (with hello world) i.e. memset in test ends up blanking 
out "frame buffer" pixels. Basically a buffer overflow like behavior/behaviour.

Test case derived during VICE 2.3 port to native by Peiselulli.

Original issue reported on code.google.com by clac...@gmail.com on 23 Mar 2011 at 12:39

Attachments:

• demo_lcd_bss_bug.patch