[Coco] What do you make of this non-approved HSCREEN mode?

[Robert Gault]

Come on guys?! Is there so little interest in how a Coco3 - not emulator 
- works that nobody wants to run this program and report what they see?

10 HSCREEN2: POKE&HFF99,5 : You can also use ,4 and ,6
20 PALETTE1,25:POKE&HFFB0,7
30 FOR M=0TO15:LPOKE &H60000+M,128: FOR T=0TO400: NEXT T,M
40 FOR M=0TO 3:LPOKE &H60010+M, 64: FOR T=0TO400: NEXT T,M
50 GOTO50