mirror of
https://github.com/status-im/nimbus-eth1.git
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b3a5c67532
* Remove exception from evm memory * Remove exception from gas meter * Remove exception from stack * Remove exception from precompiles * Remove exception from gas_costs * Remove exception from op handlers * Remove exception from op dispatcher * Remove exception from call_evm * Remove exception from EVM * Fix tools and tests * Remove exception from EVMC * fix evmc * Fix evmc * Remove remnants of async evm stuff * Remove superflous error handling * Proc to func * Fix errors detected by CI * Fix EVM op call stack usage * REmove exception handling from getVmState * Better error message instead of just doAssert * Remove unused validation * Remove superflous catchRaise * Use results.expect instead of unsafeValue
86 lines
2.6 KiB
Nim
86 lines
2.6 KiB
Nim
# Nimbus
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# Copyright (c) 2018-2024 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except
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# according to those terms.
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## EVM Opcode Handlers: Push Operations
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## ====================================
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##
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{.push raises: [].}
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import
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std/[sequtils],
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../../code_stream,
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../../stack,
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../../evm_errors,
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../op_codes,
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./oph_defs,
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./oph_gen_handlers
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# ------------------------------------------------------------------------------
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# Private helpers
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# ------------------------------------------------------------------------------
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proc fnName(n: int): string {.compileTime.} =
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"push" & $n & "Op"
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proc opName(n: int): string {.compileTime.} =
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"Push" & $n
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proc fnInfo(n: int): string {.compileTime.} =
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var blurb = case n
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of 1: "byte"
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else: $n & " bytes"
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"Push " & blurb & " on the stack"
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proc pushImpl(k: var Vm2Ctx; n: int): EvmResultVoid =
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k.cpt.stack.push k.cpt.code.readVmWord(n)
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const
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inxRange = toSeq(1 .. 32)
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# ------------------------------------------------------------------------------
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# Private, op handlers implementation
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# ------------------------------------------------------------------------------
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genOphHandlers fnName, fnInfo, inxRange, pushImpl
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# ------------------------------------------------------------------------------
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# Public, op exec table entries
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# ------------------------------------------------------------------------------
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genOphList fnName, fnInfo, inxRange, "vm2OpExecPush", opName
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# Push0 needs to be slightly different because it's only available after
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# Shanghai (EIP-3855). But it still seems like it belongs in this file.
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# (Alternatively, we could make genOphList accept some more information
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# about which opcodes are for which forks, but that seems uglier than
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# just adding Push0 here as a special case.)
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const
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push0Op: Vm2OpFn = proc (k: var Vm2Ctx): EvmResultVoid =
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## 0x5f, push 0 onto the stack
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k.cpt.stack.push(0)
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vm2OpExecPushZero*: seq[Vm2OpExec] = @[
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(opCode: Push0, ## 0x5f, push 0 onto the stack
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forks: Vm2OpShanghaiAndLater,
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name: "Push0",
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info: "Push 0 on the stack",
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exec: (prep: vm2OpIgnore,
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run: push0Op,
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post: vm2OpIgnore))]
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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