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3 changed files with 8 additions and 8 deletions

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@ -1,13 +1,13 @@
# Stupid Worm Languag
- program space is an arbitrary sized grid of bytes
- the worm starts as just a head `@`
- program space is an arbitrary sized grid
- the worm starts where you place the worm head @
- as it passes over commands, they get moved to the back of the worm
- values get pushed to stack (eaten) when passed over, worm body length increases
- the program gets rearranged every time the worm executes it
## commands
```
+- pop 2 values, push sum/difference (uses the order they are popped, so `0-` negates the top of the stack)
+- pop 2 values *, push sum/difference (uses the order they are popped, so `0 -` negates the top of the stack)
><^v change direction
0..9 push number to stack
/\ pop stack, reflect to the side if not zero
@ -15,6 +15,5 @@
= duplicate top of stack
! pop and write output as ascii char
" pop and write output as number
_ push a space character
all other characters are pushed as-is
```
* pop when stack is empty yields zero

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@ -1 +0,0 @@
!!!!!!!!!!!!!Hello,_world+1_@<

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@ -225,8 +225,10 @@ impl SandWormInterpreter {
}
}
b' ' | 0 => dont_push_instruction = true,
b'_' => self.worm_in.push(b' '),
other => self.worm_in.push(other),
other => {
self.worm_in.push(other);
dont_push_instruction = true;
}
}
if !dont_push_instruction {
self.worm_out.insert(0, instruction);