Conversation

Notices

1. Embed this notice
   alcinnz (alcinnz@floss.social)'s status on Wednesday, 22-Jan-2025 03:28:15 JST alcinnz

   As for how I'd implement the rest of Lua's `math` standard library upon our Lua interpreter bootstrapped upon a risc32cfimv...

   `math.abs` could simply be `if x < 0 do return -x else return x end`.

   `math.ceil`, `math.floor`, `math.fmod`, & `math.sqrt` have corresponding opcodes from the RISC-V "F" extension, mainly thanks to its rounding-mode flags. And as such would be implemented in Assembly.

   `math.deg` & `math.rad` multiplies or divides its argument by pi/180 unit-conversion factor.

   1/3?

   • Embed this notice
     alcinnz (alcinnz@floss.social)'s status on Wednesday, 22-Jan-2025 03:39:52 JST alcinnz

     in reply to

     • faried nawaz

     @fn Nope. But I've described a design for such a machine in some detail: https://adrian.geek.nz/from-scratch/personal-computer

     The CPU described there is nothing special, a fairly typical design today.

   • Embed this notice
     faried nawaz (fn@p.node.pk)'s status on Wednesday, 22-Jan-2025 03:39:59 JST faried nawaz

     in reply to
     @alcinnz you have a 32 bit cpu with rvv 1.0?