https://github.com/felipensp/vvm

Experimental Register-based Virtual Machine for V Lang
https://github.com/felipensp/vvm

language programming v vlang vm

Last synced: 15 days ago
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Experimental Register-based Virtual Machine for V Lang

• Host: GitHub
• URL: https://github.com/felipensp/vvm
• Owner: felipensp
• License: mit
• Created: 2024-01-25T13:27:48.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2024-12-20T20:33:56.000Z (about 1 month ago)
• Last Synced: 2024-12-20T21:37:20.909Z (about 1 month ago)
• Topics: language, programming, v, vlang, vm
• Language: V
• Homepage:
• Size: 29.3 KB
• Stars: 29
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# VVM

Experimental Register-based Virtual Machine for V Programming Language

### Usage

```

$ cat samples/fib.v 

fn fib(num int) int {

        if num < 2 {

                return num

        } else {

                return fib(num - 1) + fib(num - 2)

        }

}

fn main() {

        println(fib(26))

}

$ vvm -d -f samples/fib.v 

Collected IR:

[0000]    oscope_ |                lit.8 |               unused |     unused

[0001]      pass_ |              [lit]#1 |               unused |     unused

[0002]        lt_ |              var$num |                lit.2 |      tmp.0

[0003]      jmpz_ |                tmp.0 |               unused |      jmp.5

[0004]       ret_ |              [var]#1 |               jmp.12 |      tmp.1

[0005]      jmpz_ |               unused |               unused |     jmp.12

[0006]       sub_ |              var$num |                lit.1 |      tmp.4

[0007]      call_ |         lit$main.fib |              [tmp]#1 |      tmp.3

[0008]       sub_ |              var$num |                lit.2 |      tmp.6

[0009]      call_ |         lit$main.fib |              [tmp]#1 |      tmp.5

[0010]       add_ |                tmp.3 |                tmp.5 |      tmp.2

[0011]       ret_ |              [tmp]#1 |               jmp.12 |      tmp.7

[0012]    escope_ |               unused |               unused |     unused

[0013]    oscope_ |                lit.2 |               unused |     unused

[0014]      call_ |         lit$main.fib |              [lit]#1 |      tmp.1

[0015]      call_ |     lit$main.println |              [tmp]#1 |      tmp.0

[0016]    escope_ |               unused |               unused |     unused

Running (entry point=0013):

121393

```