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millfork/CHANGELOG.md
Karol Stasiak d785d43ae7 Many optimization improvements and bugfixes 
- fixed VariableToRegisterOptimization removing variables during superoptimization
- fixed PointlessMathFromFlow giving results that do not fit a byte
- fixed PointlessLoadBeforeReturn moving reads from before to after memory modification
- achieved and exceeded CC65 performance when doing 16-bit Eratosthenes sieve
2018-03-28 12:37:38 +02:00

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Change log

Current version

  • Added array initialization syntax with for (not yet finalized).

  • Added atascii text codec.

  • Fixed several bugs, most importantly invalid offsets for branching instructions.

  • Other improvements.

0.2.2

  • Allowed adding constant words to variable bytes without the zeropage pseudoregister.

  • -fzp-register is now enabled by default, as the documentation has already been saying.

  • Allowed more kinds of constants within variable and array initializers.

  • Fixed several bugs.

  • Other improvements.

0.2

  • Breaking change! Renamed inline to macro.

  • Breaking change! Added support for memory segments. Changed the platform definition file syntax.

  • Added preliminary support for 65CE02, HuC6280 and 65816 processors.

  • Added support for Famicom/NES and C64 with SuperCPU.

  • Added new -O1 optimization preset; old -O1 became -O2, old -O2 became -O3 and so on.

  • Added command line options for controlling the size-speed trade-offs.

  • Added support for parameters for macros written in Millfork.

  • Enabled calling macros with index expression parameters.

  • Enabled calling macros from assembly.

  • Added optimizer hints: inline, noinline, register.

  • Added command line flags --size, --fast, --blast-processing.

  • Removed command line flag --detailed-flow. Detailed flow analysis was slow, broken, hard to maintain, and didn't even help that much.

  • Added *'=, nonet, hi and lo operators.

  • Added support for zeropage pseudoregisters, allowing for some operators work with more types of operands.

  • Added return dispatch statements.

  • Added break and continue statements.

  • Allowed the else if combination (i.e. the else branch doesn't have to be in braces if it's just a single if-else statement).

  • Added octal and quaternary literals.

  • Fixed several allocation bugs.

  • Fixed several optimization bugs.

  • Fixed several C64 and C16 library bugs.

  • Fixed several other bugs.

  • Other improvements.

0.1

  • Initial numbered version.