[TUHS] pdp11 UNIX memory allocation
Johnny Billquist
bqt at update.uu.se
Wed Jan 7 12:59:56 AEST 2015
On 2015-01-07 03:39, John Cowan wrote:
> Johnny Billquist scripsit:
>
>> The versions of Unix I am aware of push arguments on the stack.
>
> Yes. It was typical for HLLs not to use JSR Rn instructions (which you
> need if you are going to pull arguments out of the instruction stream)
> but rather JSR PC instructions.
True. However, in this particular case, we were talking about system
calls. But the versions of the code I was aware of were equally much
pushing stuff on the stack for that case.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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