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diff --git a/Changelog.md b/Changelog.md index 1d03e1e..9a7e211 100644 --- a/Changelog.md +++ b/Changelog.md @@ -1,5 +1,21 @@ # Change log +### v0.7.1 (released on 2 February 2022) + +#### Polished: + +- **Bytecodes**: Bytecodes of virtual machines are expressed by three address codes, though these are ordered as `op dest src1 src2`. These are changed to the ordinarily order such as `op src1 src2 dest`. + +- **Bytecode optimisation**: + + - A sequence `OP_EQI_RO reg` `OP_JMPEQ0_R0 pc` is optimised into a code `JMPNEQ0 reg pc`. + - By introducing a bytecode `OP_INC src dest`, a code `OP_ADDI src $1 dest` and a code`OP_ADDI $1 src dest` are optimised into `OP_INC src dest`. + - By introducing a bytecode `OP_DEC src dest`, a code `OP_SUBI src $1 dest` is optimised into `OP_DEC src dest`. + +- **Intermediate code for blocks**: To show areas of blocks, an intermediate code `OP_BEGIN_BLOCK` is introduced. Copy Propagation for `OP_LOAD` and `OP_LOADI` is performed until the next `OP_BEGIN_BLOCK` occurrence. + + + ### v0.7.0 (released on 30 January 2022) #### New Features: |