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Code Issues Releases Wiki Activity

Fix the description of OP_TUCK.

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The code is
https://github.com/bitcoin/bitcoin/blob/master/src/script/interpreter.cpp#L686-L693

    valtype vch = stacktop(-1);
    stack.insert(stack.end()-2, vch);

which looks to me like it turns

    bottom-> ..., D, C, B, A <-top

into

    bottom-> ..., D, C, A, B, A <-top
This commit is contained in:
Arthur O'Dwyer 2018-03-26 13:39:13 -07:00
parent f8b883dcd4
commit e9e2b53769
1 changed files with 1 additions and 1 deletions
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appdx-scriptops.asciidoc
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@ -81,7 +81,7 @@ Tables and descriptions sourced from https://en.bitcoin.it/wiki/Script[].
| OP_ROLL | 0x7a | Pop value N from top, then move the Nth item to the top of the stack
| OP_ROT | 0x7b | Rotate the top three items in the stack
| OP_SWAP | 0x7c | Swap the top three items in the stack
| OP_TUCK | 0x7d | Copy the top item and insert it between the top and second item.
| OP_TUCK | 0x7d | Insert a copy of the top item just below the second item
|=======
<<tx_script_ops_table_splice>> shows string operators.