21 lines
778 B
Markdown
21 lines
778 B
Markdown
# Stupid Worm Languag
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- program space is an arbitrary sized grid of bytes
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- the worm starts as just a head `@`
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- as it passes over commands, they get moved to the back of the worm
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- values get pushed to stack (eaten) when passed over, worm body length increases
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- the program gets rearranged every time the worm executes it
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## commands
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```
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+- pop 2 values, push sum/difference (uses the order they are popped, so `0-` negates the top of the stack)
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~ logical not (0 becomes 1, nonzero becomes 0)
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><^v change direction
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0..9 push number to stack
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/\ pop stack, reflect to the side if not zero
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? reads one byte of input
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= duplicate top of stack
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! pop and write output as ascii char
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" pop and write output as number
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_ push a space character
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all other characters are pushed as-is
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```
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