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axic/dummymetering.wasmhex

Last active January 21, 2018 14:59
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Dummy eWASM sentinel contract
Raw
dummymetering.wasmhex
0061736d0100000001170560017e006000017f60037f7f7f0060027f7f0060000002580408657468657265756d06757365476173000008657468657265756d0f67657443616c6c4461746153697a65000108657468657265756d0c63616c6c44617461436f7079000208657468657265756d0672657475726e0003030201040503010001071102066d656d6f72790200046d61696e00040a25012301017f1001210042ba022000ad7e42e40080100041004100200010024100200010030b
Raw
dummymetering.wast
;;
;; Dummy sentinel contract. Accepts any input and passes it through.
;;
(module
(import "ethereum" "useGas" (func $useGas (param i64)))
(import "ethereum" "getCallDataSize" (func $getCallDataSize (result i32)))
(import "ethereum" "callDataCopy" (func $callDataCopy (param i32 i32 i32)))
(import "ethereum" "return" (func $return (param i32 i32)))
(memory 1)
(export "memory" (memory 0))
(export "main" (func $main))
(func $main
(local $size i32)
(set_local $size (call $getCallDataSize))
;; Charge π gas per byte
(call $useGas (i64.div_u (i64.mul (i64.const 314) (i64.extend_u/i32 (get_local $size))) (i64.const 100)))
(call $callDataCopy (i32.const 0) (i32.const 0) (get_local $size))
(call $return (i32.const 0) (get_local $size))))
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