Writing a register based VM in less than 125 lines of C code

Re:Writing a register based VM in less than 125 lines of C code by nomemory on Wednesday December 08, 2021 @08:46PM (#29492857)

Thanks for the feedback, I appreciate it.

You are right about the TOC, my other long articles have them, but for this one I simply forgot to generate one. I will generate it tomorrow.

There's no compiler, and yes you are right managing a limited set of registers is hard when compiling from higher level languages. But there are a few compilers for LC3, so it's not impossible to write them even for such a limiting number of registers. But this is not my area of expertise, so someone more knowledgeable can comment on that.

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Re:Writing a register based VM in less than 125 lines of C code by userbinator on Thursday December 09, 2021 @12:14AM (#29494067)

If 8 registers is "limiting", I don't know what you'd call something like a PIC which has a single accumulator... and yet, C compilers exist for those too. On the bright side, it really reduces the number of choices for register allocation.

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Re:Writing a register based VM in less than 125 lines of C code by andi999 on Thursday December 09, 2021 @01:54AM (#29494623)

I call it painful.

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