Date   : Tue, 11 Mar 2008 11:54:59 +0000
From   : jgh@... (Jonathan Graham Harston)
Subject: TUBE chip, accessing 'Parasite' side

Johan Heuseveldt wrote:
> > Doing a bit more digging around I've found that the most usual
> > memory layout for a 6809 system is as follows:
> 
> In a FLEX version all the device drivers need to be rewritten, taken
> the TUBE into account. Not sure I'll fancy that. Then there is the issue of
 
Just like porting Flex to any platform. You'd have to rewrite all
the drivers for whatever system you would want to run on the 6809
copro.
 
READ:
STX OSW7F+1
STA OSW7F+7
STB OSW7F+8
LDA #$53
STA OSW7F+6
LDA #3
STA OSW7F+5
LDA DRIVE
STA OSW7F+0
LDA #$21
STA OSW7F+9
LDX #0
STX OSW7F+3
LDX #OSW7F
LDA #$7F
JSR OSWORD
LDB OSW7F+10
RTS
 
> getting the software in the machine. Does taht need any additional Beeb
code?
 
*LOAD code <language address>
 
-- 
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