[Coco] Disto 4-in-1 clock2 with CocoSDC

[Gene Heskett]

On Wednesday 21 January 2015 19:10:14 Bob Devries did opine
And Gene did reply:
> Hi Chris,
> 
> Do the command line defs over-rule those in the defs files? I found
> that the defs file coco.d has MPI.Slot = $03
> I'm not sure if this value is 0-3 or 1-4?

0 to 3 Bob, that way it all fits in a nibble. 

> Regards, Bob Devries
> Dalby, QLD, Australia
> 
> On 22/01/2015 9:56 AM, Christopher R. Hawks wrote:
> > On Wed, 21 Jan 2015 17:21:25 -0600
> > 
> > "Christopher R. Hawks" <chawks at dls.net> wrote:
> >> On Thu, 22 Jan 2015 08:23:27 +1000
> >> 
> >> Bob Devries <devries.bob at gmail.com> wrote:
> >>> Hi Robert,
> >>> 
> >>> I also notice that there's no entry in the makefile to actually
> >>> *build* the clock2_disto4 module. The makefile has an entry for two
> >>> software clocks (50 and 60Hz), the cloud9 and the BNB clock2
> >>> modules.
> >>> 
> >>> I notice that the other clock2 entries have something like
> >>> -DCLOUD9=1 or -DBNB=1. However, I can't see where this is used.
> >>> Should I set the clock2_disto4 to -DDISTO or -DDISTO4.
> >>> 
> >>> And yet, it appears that there is a clock2 module in the
> >>> NITROS9/6309L2/CLOCKS directory on the created disk image. That
> >>> image doesn't read the clock since I suspect that the default
> >>> clock2 module is the 60Hz software clock.
> >>> 
> >>> You would be forgiven if you think I'm floundering here. :)
> >>> 
> >>> Regards, Bob Devries
> >>> Dalby, QLD, Australia
> >>> 
> >>> On 21/01/2015 2:11 PM, Robert Gault wrote:
> >>>> Bob Devries wrote:
> >>>>> Hi Robert,
> >>>>> 
> >>>>> I have had a look at the source of clock2_disto4.asm and found
> >>>>> that it is indeed
> >>>>> set up to be slot-ready, but it needs to have MPIFlag set to the
> >>>>> slot number
> >>>>> (1-4). Now I'm left wondering where this is set? I have the idea
> >>>>> that it should
> >>>>> be in one of the rules.mak? Would that be correct?
> >>>>> 
> >>>>> Regards, Bob Devries
> >>>>> Dalby, QLD, Australia
> >>>> 
> >>>> Look at the level2/coco3/modules/makefile for example and you will
> >>>> see
> >>>> 
> >>>> CLOCKSMART      = -DRTCSmart=1 -DMPIFlag=1
> >>>> 
> >>>> None of the other clock2 files have the flag set and you would
> >>>> need to adjust the makefile to suit your preferences.
> >>>> 
> >>>> MPIFlag does seem to be used to indicate the slot holding the RTC.
> >>>> That would save code but a search routine would be better since
> >>>> you would not need to recompile if the clock were moved from a
> >>>> default slot#.
> >>>> 
> >>>> Note that clock2_smart.asm does not use MPIFlag even though the
> >>>> makefile does but always searches through all four slots looking
> >>>> for the RTC.
> >>>> 
> >>>> Robert
> >> 
> >> Bob:
> >> 	Add this line after the '# Clocks' line in the makefile:
> >> clock2_disto4: clock2_disto4.asm
> >> 
> >> 	$(AS) $(AFLAGS) $(ASOUT)$@ $< -DMPIFlag=1
> >> 
> >> Change the MPIFlag to the slot number yours is in ( 1 - 4 ).
> >> 
> >> 	I agree with Robert that all clocks should search for their
> >> 
> >> hardware in their Init routine, but, this should get you going in
> >> the mean time.
> >> 
> >> BTW: the module is built because it is listed in the CLOCKS line
> >> near the top of the file, and the ALLOBJS line includes $(CLOCKS),
> >> and the requirement for the rule all: is $(ALLOBJS). Which includes
> >> $(CLOCKS) and so, includes clock2_disto4.
> >> 
> >> 	Only modules with special parameters need a separate rule
> >> 
> >> (like we just created). Others use one of the rules in rules.mak.
> >> (The clock2_disto4 matches the last rule in rules.mak.)
> >> 
> >> 
> >> Christopher R. Hawks
> >> HAWKSoft
> >> 
> > 	Ooppss!! add the -DMPI.Slot=4 (your slot #) after the
> > 
> > -DMPIFlag=1
> > 
> > 
> > Christopher R. Hawks
> > HAWKSoft


Cheers, Gene Heskett
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