neoneo-go/pkg/vm/opcode.go
Anthony De Meulemeester f7d57e4e49
VM draft + cli setup (#20)
* updated readme

* added basic cmd.

* added seperate folders for cmd packages.

* Fix netmodes in test + reverse bigint bytes

* glide get deps
2018-02-09 17:08:50 +01:00

129 lines
6.6 KiB
Go

package vm
// OpCode is an single operational instruction for the GO NEO virtual machine.
type OpCode byte
// List of supported opcodes.
const (
// Constants
OpPush0 OpCode = 0x00 // An empty array of bytes is pushed onto the stack.
OpPushF OpCode = OpPush0
OpPushBytes1 OpCode = 0x01 // 0x01-0x4B The next opcode bytes is data to be pushed onto the stack
OpPushBytes75 OpCode = 0x4B
OpPushData1 OpCode = 0x4C // The next byte contains the number of bytes to be pushed onto the stack.
OpPushData2 OpCode = 0x4D // The next two bytes contain the number of bytes to be pushed onto the stack.
OpPushData4 OpCode = 0x4E // The next four bytes contain the number of bytes to be pushed onto the stack.
OpPushM1 OpCode = 0x4F // The number -1 is pushed onto the stack.
OpPush1 OpCode = 0x51
OpPushT OpCode = OpPush1
OpPush2 OpCode = 0x52 // The number 2 is pushed onto the stack.
OpPush3 OpCode = 0x53 // The number 3 is pushed onto the stack.
OpPush4 OpCode = 0x54 // The number 4 is pushed onto the stack.
OpPush5 OpCode = 0x55 // The number 5 is pushed onto the stack.
OpPush6 OpCode = 0x56 // The number 6 is pushed onto the stack.
OpPush7 OpCode = 0x57 // The number 7 is pushed onto the stack.
OpPush8 OpCode = 0x58 // The number 8 is pushed onto the stack.
OpPush9 OpCode = 0x59 // The number 9 is pushed onto the stack.
OpPush10 OpCode = 0x5A // The number 10 is pushed onto the stack.
OpPush11 OpCode = 0x5B // The number 11 is pushed onto the stack.
OpPush12 OpCode = 0x5C // The number 12 is pushed onto the stack.
OpPush13 OpCode = 0x5D // The number 13 is pushed onto the stack.
OpPush14 OpCode = 0x5E // The number 14 is pushed onto the stack.
OpPush15 OpCode = 0x5F // The number 15 is pushed onto the stack.
OpPush16 OpCode = 0x60 // The number 16 is pushed onto the stack.
// Flow control
OpNOP OpCode = 0x61 // No operation.
OpJMP OpCode = 0x62
OpJMPIF OpCode = 0x63
OpJMPIFNOT OpCode = 0x64
OpCall OpCode = 0x65
OpRET OpCode = 0x66
OpAppCall OpCode = 0x67
OpSysCall OpCode = 0x68
OpTailCall OpCode = 0x69
// The stack
OpDupFromAltStack OpCode = 0x6A
OpToAltStack OpCode = 0x6B // Puts the input onto the top of the alt stack. Removes it from the main stack.
OpFromAltStack OpCode = 0x6C // Puts the input onto the top of the main stack. Removes it from the alt stack.
OpXDrop OpCode = 0x6D
OpXSwap OpCode = 0x72
OpXTuck OpCode = 0x73
OpDepth OpCode = 0x74 // Puts the number of stack items onto the stack.
OpDrop OpCode = 0x75 // Removes the top stack item.
OpDup OpCode = 0x76 // Duplicates the top stack item.
OpNip OpCode = 0x77 // Removes the second-to-top stack item.
OpOver OpCode = 0x78 // Copies the second-to-top stack item to the top.
OpPick OpCode = 0x79 // The item n back in the stack is copied to the top.
OpRoll OpCode = 0x7A // The item n back in the stack is moved to the top.
OpRot OpCode = 0x7B // The top three items on the stack are rotated to the left.
OpSwap OpCode = 0x7C // The top two items on the stack are swapped.
OpTuck OpCode = 0x7D // The item at the top of the stack is copied and inserted before the second-to-top item.
// Splice
OpCat OpCode = 0x7E // Concatenates two strings.
OpSubStr OpCode = 0x7F // Returns a section of a string.
OpLeft OpCode = 0x80 // Keeps only characters left of the specified point in a string.
OpRight OpCode = 0x81 // Keeps only characters right of the specified point in a string.
OpSize OpCode = 0x82 // Returns the length of the input string.
// Bitwise logic
OpInvert OpCode = 0x83 // Flips all of the bits in the input.
OpAnd OpCode = 0x84 // Boolean and between each bit in the inputs.
OpOr OpCode = 0x85 // Boolean or between each bit in the inputs.
OpXor OpCode = 0x86 // Boolean exclusive or between each bit in the inputs.
OpEqual OpCode = 0x87 // Returns 1 if the inputs are exactly equal, 0 otherwise.
// Arithmetic
// Note: Arithmetic inputs are limited to signed 32-bit integers, but may overflow their output.
OpInc OpCode = 0x8B // 1 is added to the input.
OpDec OpCode = 0x8C // 1 is subtracted from the input.
OpSign OpCode = 0x8D
OpNegate OpCode = 0x8F // The sign of the input is flipped.
OpAbs OpCode = 0x90 // The input is made positive.
OpNot OpCode = 0x91 // If the input is 0 or 1, it is flipped. Otherwise the output will be 0.
OpNZ OpCode = 0x92 // Returns 0 if the input is 0. 1 otherwise.
OpAdd OpCode = 0x93 // a is added to b.
OpSub OpCode = 0x94 // b is subtracted from a.
OpMul OpCode = 0x95 // a is multiplied by b.
OpDiv OpCode = 0x96 // a is divided by b.
OpMod OpCode = 0x97 // Returns the remainder after dividing a by b.
OpShl OpCode = 0x98 // Shifts a left b bits, preserving sign.
OpShr OpCode = 0x99 // Shifts a right b bits, preserving sign.
OpBoolAnd OpCode = 0x9A // If both a and b are not 0, the output is 1. Otherwise 0.
OpBoolOr OpCode = 0x9B // If a or b is not 0, the output is 1. Otherwise 0.
OpNumEqual OpCode = 0x9C // Returns 1 if the numbers are equal, 0 otherwise.
OpNumNotEqual OpCode = 0x9E // Returns 1 if the numbers are not equal, 0 otherwise.
OpLT OpCode = 0x9F // Returns 1 if a is less than b, 0 otherwise.
OpGT OpCode = 0xA0 // Returns 1 if a is greater than b, 0 otherwise.
OpLTE OpCode = 0xA1 // Returns 1 if a is less than or equal to b, 0 otherwise.
OpGTE OpCode = 0xA2 // Returns 1 if a is greater than or equal to b, 0 otherwise.
OpMin OpCode = 0xA3 // Returns the smaller of a and b.
OpMax OpCode = 0xA4 // Returns the larger of a and b.
OpWithin OpCode = 0xA5 // Returns 1 if x is within the specified range (left-inclusive), 0 otherwise.
// Crypto
OpSHA1 OpCode = 0xA7 // The input is hashed using SHA-1.
OpSHA256 OpCode = 0xA8 // The input is hashed using SHA-256.
OpHASH160 OpCode = 0xA9
OpHASH256 OpCode = 0xAA
OpCheckSig OpCode = 0xAC
OpCheckMultiSig OpCode = 0xAE
// Array
OpArraySize OpCode = 0xC0
OpPack OpCode = 0xC1
OpUnpack OpCode = 0xC2
OpPickItem OpCode = 0xC3
OpSetItem OpCode = 0xC4
OpNewArray OpCode = 0xC5 // Pops size from stack and creates a new array with that size, and pushes the array into the stack
OpNewStruct OpCode = 0xC6
OpAppend OpCode = 0xC8
OpReverse OpCode = 0xC9
OpRemove OpCode = 0xCA
// Exceptions
OpThrow OpCode = 0xF0
OpThrowIfNot OpCode = 0xF1
)