LINCtape images

Jay Jaeger cube1 at charter.net
Thu Nov 4 11:13:55 CDT 2021


On 11/3/2021 12:25 PM, Christian Corti via cctech wrote:
> On Wed, 3 Nov 2021, Jay Jaeger wrote:
>> It seems you didn't notice that I included two separate programs in my 
>> previous post:  XMTAPE and CMPTAP  ;)
> 
> I did, and I have found an error ;-)
> 
> 0275  0361 7300      #WDFLSH CLA CLL
> 0276  0362 1073 0073         TAD XMCNT   [ IF COUNT==128.
> 0277  0363 1176 7600         TAD (0-128.
> 0300  0364 7450              SNA
> 0301  0365 5761 0361         JMP;WDFLSH  [ THEN JUST RETURN
> 
> The space for the return address is missing at the beginning of WDFLSH
> 
> Christian

Yes, in XMTAPE it looks like

0275  0361 7300      #WDFLSH CLA CLL

It should read

#WDFLSH      0
              CLA CLL

I *thought* I had tested it. ;)

But, as it turns out, WDFLSH is only called from one place, and is only 
called when the accumulator is 0 (and probably the link bit is zero 
two), so while this is definitely an error in coding, at first blush I 
don't think it affects operation of the program.

JRJ


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