TODO.md

Soon

• Fix: .default in target overrides definition in program.
• Fix: string encoding not serialized correctly.
• specify padding character in string encoding (:string(<n>, '<c>'))
• parse signed non-native integer encoding (:-big_endian[(<n>)], :little_endian(-<n>))
• verify that integer encoding size <= 8
• Allow non-constant expressions for range in .binary_file.
• Character constants, optionally with encoding ('a':screen)
• Track constant usage, include used constants in symbol table.
• Optionally omit private symbols of libraries from symbol talbe.
• Move location from BaseExpression to Expression, update centrally
• Include library name in symbol table.

Bugs

• Fix .repeat without index variable but count expression begins with variable
• Places 2-byte reserve in 1-byte block.
• Named label in macro results in unresolved variable. (macro-named-label.test)
• .include_bianry is parsed as .include _binary.
• Fix .mod.

Tests

• Z80 CPU.
• .if .defined in body
• .pre_if .true inside .pre_if .false
• .use, .uses, .pin, .used
• .define and .undefine are ignored if preprocessor is skipping.
• non-native integer encodings
• range for .binary_file
• .default
• .mod

Documentation

• preprocessor
• target additions (objects in target, only used from .output included in program)
• non-native integer encodings
• range for .binary_file
• in-body .if syntax
• .repeat, .fill
• .default
• .mod

StringEncoding

• add support for \\ escapes

Bugs

• fix target specified in source file (CPU punctuation doesn't get added, assemlby instructions not recognized)
• fix .import in assemlby source file
• Don't use full file name for .import in object file.
• .segment not reported as unknown directive while assembling
• columns are off when source contains TAB.
• Serialize which library object was resolved in (needed to refer to private objects). (still needed?)
• Test/fix labels (named and unnamed) in macros.
• Resolve macros in library they're defined in. Add placeholders for arguments in local environment.

Missing Features

• Add optional priorities to sections.

Optimizations

• evaluate ScopeBody to inner body when scope no longer needed.
• Don't serialize signed encoding when value is known to fit.
• Simplify X + N + M and similar.

Cleanup

• Don't rename CPU notation arguments. (Currently fails for 45gs02 CPU.)

Older Items

• Fix Tokenizer:at_end to honor ungot token.
• Parsing objects: end on directive.