Move to GL 3.2
Draw a quad with shaders depending on the mode in that part of the screen
HIRES shader reads from hires texture
TEXTPORT shader reads from textpor texture and indirects through a font
to get pixel values
MIXED now supported
Still to do: BLINK text, INVERSE text, LORES, gang up HGR memory updates
Why doesn't cursor flash the checkerboard?
"clean" Makefile target
Rearrange DEBUG constants so least bits trigger output with most impact
New "implemented" bool SoftSwitch
Add page2 handling to textport (untested)
Separate out "region" encapsulating address start and end for convenience
Factor out "set_flags()" for most common "flag_change()" sequences
Move comment with instruction opcode onto case for compactness
Remove old disassembly in favor of open source disassembly
