Pascal not considered harmful - was Re: Rich kids are into COBOL
bfranchuk at jetnet.ab.ca
Fri Feb 20 19:29:36 CST 2015
On 2/20/2015 6:11 PM, Rich Alderson wrote:
> From: Johnny Billquist
> Sent: Friday, February 20, 2015 4:51 PM
>> On 2015-02-21 01:44, ben wrote:
>>> How do handle byte operations in C like *x++ on a PDP 10?
>> Do you need information on how byte operations and byte pointers work on
>> a PDP-10?
>> KCC, which is the one C compiler for the PDP-10 I sortof know something
>> about, use 9 bit chars, and of course you then get four bytes to a word.
>> Not sure what in your question is hard to see how it is done.
> Are you even certain that it is a byte operation??? All I see is an increment
> of an object in memory pointed to by the variable "x".
The hint here was 'byte operations'.
> Now, had we been told what the declaration of "x" is, the question would be
> more meaningful, but if it's something less than word sized, then the byte
> manipulation instructions would work just fine.
I don't use a 10 so I forgot, both left and right half's of word would
be used there.
> I don't see a problem, and think that this is a pretty weak straw man.
> Rich Alderson
> Vintage Computing Sr. Systems Engineer
> Living Computer Museum
> 2245 1st Avenue S
> Seattle, WA 98134
> mailto:RichA at LivingComputerMuseum.org
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