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Merge pull request #16 from lugaxker/patch-3

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Added stack opcodes (0x6d-0x7d)
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dagurval
2020-02-25 20:09:18 +01:00
committed by GitHub
parent ac82cb8454 eb9c596375
commit 8964af5d58
1 changed files with 22 additions and 19 deletions
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protocol/blockchain/script.md
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@@ -69,6 +69,28 @@ Op codes marked with **(do not use)** are disallowed and will make a transaction
### Stack
| Word | Value | Hex | Input | Output | Description |
| --------------- | ----- | ---- | ------------------- | ---------------------- | ------------------------------------- |
| OP_TOALTSTACK | 107 | 0x6b | x1 | (alt) x1 | Puts the input onto the top of the alt stack. Removes it from the main stack. |
| OP_FROMALTSTACK | 108 | 0x6c | (alt) x1 | x1 | Puts the input onto the top of the main stack. Removes it from the alt stack. |
| OP_IFDUP | 115 | 0x73 | x | x / x x | If the top stack value is not 0, duplicate it. |
| OP_DEPTH | 116 | 0x74 | Nothing | <stack size> | Puts the number of stack items onto the stack. |
| OP_DROP | 117 | 0x75 | x | Nothing | Removes the top stack item. |
| OP_DUP | 118 | 0x76 | x | x x | Duplicates the top stack item. |
| OP_NIP | 119 | 0x77 | x1 x2 | x2 | Removes the second-to-top stack item. |
| OP_OVER | 120 | 0x78 | x1 x2 | x1 x2 x1 | Copies the second-to-top stack item to the top. |
| OP_PICK | 121 | 0x79 | xn ... x2 x1 x0 <n> | xn ... x2 x1 x0 xn | The item *n* back in the stack is copied to the top. |
| OP_ROLL | 122 | 0x7a | xn ... x2 x1 x0 <n> | x(n-1) ... x2 x1 x0 xn | The item *n* back in the stack is moved to the top. |
| OP_ROT | 123 | 0x7b | x1 x2 x3 | x2 x3 x1 | The top three items on the stack are rotated to the left. |
| OP_SWAP | 124 | 0x7c | x1 x2 | x2 x1 | The top two items on the stack are swapped. |
| OP_TUCK | 125 | 0x7d | x1 x2 | x2 x1 x2 | The item at the top of the stack is copied and inserted below the second-to-top item. |
| OP_2DROP | 109 | 0x6d | x1 x2 | Nothing | Removes the top two stack items. |
| OP_2DUP | 110 | 0x6e | x1 x2 | x1 x2 x1 x2 | Duplicates the top two stack items. |
| OP_3DUP | 111 | 0x6f | x1 x2 x3 | x1 x2 x3 x1 x2 x3 | Duplicates the top three stack items. |
| OP_2OVER | 112 | 0x70 | x1 x2 x3 x4 | x1 x2 x3 x4 x1 x2 | Copies the pair of items two spaces back in the stack to the front. |
| OP_2ROT | 113 | 0x71 | x1 x2 x3 x4 x5 x6 | x3 x4 x5 x6 x1 x2 | The fifth and sixth items back are moved to the top of the stack. |
| OP_2SWAP | 114 | 0x72 | x1 x2 x3 x4 | x3 x4 x1 x2 | Swaps the top two pairs of items. |
### Splice
|Word |Value |Hex |Input |Output | Description |
@@ -140,25 +162,6 @@ Please help improve this article by catigorizing and describing the following up
| 0x68 | OP_ENDIF |
| 0x69 | OP_VERIFY |
| 0x6A | OP_RETURN |
| 0x6B | OP_TOALTSTACK |
| 0x6C | OP_FROMALTSTACK |
| 0x6D | OP_2DROP |
| 0x6E | OP_2DUP |
| 0x6F | OP_3DUP |
| 0x70 | OP_2OVER |
| 0x71 | OP_2ROT |
| 0x72 | OP_2SWAP |
| 0x73 | OP_IFDUP |
| 0x74 | OP_DEPTH |
| 0x75 | OP_DROP |
| 0x76 | OP_DUP |
| 0x77 | OP_NIP |
| 0x78 | OP_OVER |
| 0x79 | OP_PICK |
| 0x7A | OP_ROLL |
| 0x7B | OP_ROT |
| 0x7C | OP_SWAP |
| 0x7D | OP_TUCK |
| 0x89 | OP_RESERVED1 **(do not use)** |
| 0x8A | OP_RESERVED2 **(do not use)** |
| 0x8B | OP_1ADD |