[Vm-dev] questions about a couple of primitives

[tim Rowledge]

> On 2020-09-01, at 8:12 AM, Eliot Miranda <eliot.miranda at gmail.com> wrote:
> 
>  [Fabio, this is not described by the blue book because Smalltalk-80 prior to the late 80’s didn’t have unwind protect; I think I’m right in saying that Peter Deutsch added it to ObjectWorks v5; I don’t know when it was added to Smalltalk-V]. 

The ObjectWorks version was probably added in the release for mid-1990; I spent that xmas adding the VM support to the BrouHaHa/Archimedes system. I can remember it reasonably well because it was damn hard and I almost convinced myself there was a memory hardware problem in my Acorn protoype machine and that lead me to spend actual money on an A540. That was £2500, which is about US$7500 now. As a comparison, a Range Rover cost £2000 then...


tim
--
tim Rowledge; tim at rowledge.org; http://www.rowledge.org/tim
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