[Simh] RP/RM differences in header commands (for ITS, salvager)

[Johnny Billquist]

Sorry, I did oversimplify it, yes.

Essentially, I meant that you should write the data part as a normal 
write, and ignore the extra fluff required for the write header. That 
ought to make most software happy.

So, skipping extra words intended for the header, adjust size accordingly.

   Johnny

On 2019-06-27 04:05, Bob Supnik wrote:
> I don't think it's that straightforward. The write header and data 
> command must include the proper Massbus word count for header and data. 
> The Unibus side of the RH11 is doing 18b transfers, and so is the disk 
> side, so the word count ought to be 260 for an RP and 258 for an RM.
> 
> If the simulator doesn't "skip" the right number of header words, SALV 
> is going to fail on its block data check.
> 
> /Bob
> 
> On 6/26/2019 7:37 PM, simh-request at trailing-edge.com wrote:
>> I would vote for someone doing just the naive write as a starting point.
>> I think much software will be happy enough with just that, and then we
>> can look at specific when we locate software that really do care about
>> what is written into the headers.
>>
>>     Johnny
> 
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-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
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