Path: csiph.com!weretis.net!feeder9.news.weretis.net!i2pn.org!i2pn2.org!.POSTED!not-for-mail From: D Newsgroups: comp.misc Subject: Re: Emigration from Usenet [was: Re: PTD was the most-respected of the AUE regulars ...] Date: Fri, 9 Aug 2024 10:32:32 +0200 Organization: i2pn2 (i2pn.org) Message-ID: References: <66b38cf5$0$706$14726298@news.sunsite.dk> <549cc6d8-d035-9efc-c112-a09609ec4b0b@example.net> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="8323328-205755568-1723192354=:30846" Injection-Info: i2pn2.org; logging-data="1964339"; mail-complaints-to="usenet@i2pn2.org"; posting-account="w/4CleFT0XZ6XfSuRJzIySLIA6ECskkHxKUAYDZM66M"; X-Spam-Checker-Version: SpamAssassin 4.0.0 In-Reply-To: Xref: csiph.com comp.misc:25445 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323328-205755568-1723192354=:30846 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8BIT On Thu, 8 Aug 2024, Rich wrote: > D wrote: >> [-- text/plain, encoding 8bit, charset: UTF-8, 36 lines --] >> >> >> >> On Thu, 8 Aug 2024, Dan Purgert wrote: >> >>> On 2024-08-07, Lawrence D'Oliveiro wrote: >>>> On 07 Aug 2024 15:04:21 GMT, Aharon Robbins wrote: >>>> >>>>> A CS professor I know told me this last week: >>>>> >>>>> I'm one of the very few that teach Systems. It amazes me >>>>> that our PhD students almost all in AI have never heard of a >>>>> program counter. >>>> >>>> “Program counter” ... is that a von Neumann thing? >>> >>> It's the thing that holds the address of the current instruction >>> being executed. >>> >>> Effectively, CPU's operate like this loop here >>> >>> int pc=0; >>> while (1) { >>> execute_instruction (pc); >>> pc++; >>> } >>> >>> After that, 'execute_instruction' can be thought of as a big >>> conditional statement that actually performs the task -- moving data >>> between CPU registers, reading from RAM, whatever. >> >> Could it have been called instruction counter on some platforms? My >> memory is very hazy but I vaguely remember a register you could >> manipulate directly from my assembler labs and the long gone days >> when I thought computer viruses were interesting. > > Some architectures named it "program counter", others used the name > "instruction pointer", still others likely used "instruction counter". > If one searched through much of computer architecture history I'd say > one could find a least a half dozen names for it (used by different > architectures) if not more. > Ahh.. so maybe my memory did come up with something then! =) Thank you for the clarification. --8323328-205755568-1723192354=:30846--