Commit Graph

9 Commits

Author SHA1 Message Date
Michael Forney b0b277525c core/asm: assembly parser label fixes (#20210)
* core/asm: Fix encoding of pushed labels

EVM uses big-endian byte-order, so to pad a label value to 4 bytes,
zeros must be added to the front, not the end.

* core/asm: Fix PC calculations when a label is pushed

Incrementing PC by 5 is only correct if the label appears after a jump,
in which case there is an implicit push. When it appears after an explicit
push, PC should only be incremented by 4.

* core/asm: Allow JUMP with no argument

This way, a label can be pushed explicitly, or loaded from memory to
implement a jump table.
2019-10-29 13:47:18 +01:00
Caesar Chad ec192f18b4 core/asm: correct comments typo (#16974)
* core/asm/compiler: correct comments typo

core/asm/compiler: correct comments typo

* Correct comments typo
2018-06-14 16:24:35 +03:00
dm4 c514fbccc0 core/asm: accept uppercase instructions (#16531) 2018-04-19 15:31:30 +02:00
dm4 49e38c970e core/asm: remove unused condition (#16487) 2018-04-18 01:08:31 +02:00
thomasmodeneis ba1030b6b8 build: enable goimports and varcheck linters (#16446) 2018-04-18 00:53:50 +02:00
hydai 7c131f4d6d core/asm: fixed typo (posititon -> position) (#16366) 2018-03-26 13:48:39 +03:00
hydai a063876749 core/asm: fixed typo (labal -> label) (#16313) 2018-03-14 11:59:06 +02:00
Zach 3da1bf8ca1 all: use gometalinter.v2, fix new gosimple issues (#15650) 2017-12-12 19:05:47 +01:00
Jeffrey Wilcke 230cf2ec91 cmd/evm, core/asm: add EVM assembler (#3686)
The evm compile command implements a simple assembly language that compiles to
EVM bytecode.
2017-03-01 01:11:24 +01:00