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update spec

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This commit is contained in:
Chris Wanstrath 2025-10-05 21:09:56 -07:00
parent db4f332472
commit 0a7a3dcfdb
1 changed files with 10 additions and 4 deletions
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SPEC.md
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@ -61,7 +61,7 @@ type Bytecode = {
type Instruction = {
op: OpCode
operand?: number | string | { positional: number; named: number }
operand?: number | string
}
type Constant =
@ -526,7 +526,9 @@ LOAD 'mkdir'
PUSH 'src/bin' # positional arg
PUSH 'recursive' # name
PUSH true # value
CALL { positional: 1, named: 1 }
PUSH 1 # positionalCount
PUSH 1 # namedCount
CALL
```
### Tail Recursive Function
@ -549,12 +551,16 @@ recurse:
LOAD 'n'
LOAD 'acc'
MUL
TAIL_CALL 2 # No stack growth!
PUSH 2 # positionalCount
PUSH 0 # namedCount
TAIL_CALL # No stack growth!
main:
LOAD 'factorial'
PUSH 5
PUSH 1
CALL 2
PUSH 2 # positionalCount
PUSH 0 # namedCount
CALL
```
## Error Conditions