Re: [TCLCORE] New Bytecode Branch Ready for Review

[Harald O. <har...@el...>]

Donal,
I allowed me to put the provided information into a ticket:

https://core.tcl-lang.org/tcl/tktview/aa10216459cdfe0fd3eab0bbab949e611bd7336e

I just fear that we loose information when this stays in the core list.
It is IMHO important reference information.

Testers may contribute to the ticket...

THanks for all,
Harald

Am 04.05.2025 um 17:06 schrieb Donal Fellows:
> A side note: the INST_JUMP_TABLE_NUM instruction will enable the 
> addition of a new mode of operation for [switch] that I've been thinking 
> about for a while: switching on /integer /equality, which I've seen the 
> need for in handling things like switching on the number of arguments 
> passed to a procedure. (It can't be safely done now because we use the 
> wrong sort of equality testing.) I'll TIP that up once the instruction 
> to make it practical hits the trunk.
> 
> Donal.
> 
> ------------------------------------------------------------------------
> *From:* Donal Fellows
> *Sent:* Friday, May 02, 2025 17:24
> *To:* Tcl Core
> *Subject:* [TCLCORE] New Bytecode Branch Ready for Review
> 
> The branch for the new bytecodes (with the wonderfully wieldy name no- 
> variable-width-instruction-issue) is ready for someone to give it a bit 
> of a review.  It's quite a large one, so here's a summary:
> 
> [...]
> 
> The replacement for INST_RETURN_CODE_BRANCH is INST_JUMP_TABLE_NUM that 
> is a general numeric-keyed jump table. (Take note for the Tcl Compiler 
> and TBCLoad: there's a new AUX type).
> 
> [...]
> 
> Some of the operations are made available to 
> [tcl::unsupported::assemble]. Only the error prefix comparator isn't; 
> that's got safety requirements on its argument that I'm not bothering to 
> make the assembler understand.
>