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Changelog.txt
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Version 7.0.0
- Added Spin2 structures (basically small objects)
- Added Spin2 TASK functions
- Added BOOL debug modifier for -g
- Added some of the v44 Spin2 builtin methods like byteswap
- Added warning for rep without @
- Added %QUAD keyword for 64 bit variables in Spin2
- Added some experimental optimizations (thanks to Ada)
- Added ability to fall back to more compatible inline assembly (-Ono-fast-inline-asm)
- Allowed RET in fcache'd inline assembly
- Cleaned up the Spin parser to enable direct access to struct/obj members
- Fixed long relative branches (tjz, djnz, etc.)
- Fixed incorrect handling of simple for loops with unsigned variables
- Fixed return values from fwrite and fread
- Fixed result type of ?:, particularly for long long
- Improved some debug error messages
- Only use the stack for variables whose address is actually taken (thanks to Ada for this!)
- Modified _BlockDevice data structure (used for littlefs, but someday may be used for fatfs too)
- Made _float_tointeger() saturate when the result is too big/small
- Made off_t be 64 bits, to allow for files > 2GB
- Made the preprocessor case-insensitive by default (for Spin and BASIC)
- Revised file systems to all read from devices; this makes it possible to do loopback file systems or to use non-standard devices for file systems
- Suppress some asm warnings when building assembler output
Version 6.9.10
- Fix compilation error when GETWORD is replaced by MOV or MUL
- Fix varargs calls in nucode when no varying arguments present
- Fix an incorrect warning about locals shadowing globals in C
Version 6.9.9
- Fixed `--compress` flag on Windows
- Added `--zip` flag to flexcc
- Improved handling of file names in .zip output
- Improved error message for sizeof(x) when x is undefined
Version 6.9.8
- Fix `#foo+CONST` calculation
Version 6.9.7
- Fixed infinite loop when CORDIC and Read/Write optimizations fight
- Fixed potential crash when compiling empty functions
- Allow `#foo+CONST` for inline assembly when `foo` is a HUB label
Version 6.9.6
- Added a peephole for some address calculations (as suggested by Evan)
- Fixed some built-in functions in spin2cpp
Version 6.9.5
- Fixed immediate ranges for load/store, and made out of range immediates an error (thanks to Ada)
- Fixed an inappropriate memory forwarding with WZ (also thanks to Ada)
- Made sure arrays of bytes are put into memory, even if inside structs or unions
Version 6.9.4
- Fixed a use of uninitialized memory on 32 bit platforms
- Skip running compression & similar passes when there are errors
Version 6.9.3
- Fixed typo in datetime
- Ignore ' style comments in #define definitions
Version 6.9.2
- Fixed $ relative ORGF (thanks, Ada)
- Fixed annoying error spam with bad instructions when -l given
- Fixed a missing type check which caused vfscanf() to fail to compile
- Fixed incorrect conversion of multiplication into shifts in nucode
- Fixed alignment requirements for boolean types
Version 6.9.1
- Fixed initialization of boolean types
- Fixed several bugs around booleans
- Reduced storage size required for boolean types (in most cases)
Version 6.9.0
- Added new optimization to merge duplicate functions (only at -O2, and so far only works for small functions)
- Extract side effects in more cases to avoid errors with ++,-- in complex expressions
- Fixed some nucode compilation problems with the C test suite
- Fixed failure to allocate memory for local variables in some cases
- Fixed incorrect removal of some functions that were not completely inlined
- Fixed sizeof() for boolean types
- Fixed incorrect test for 16 bit multiplies on P2
- Fixed a problem with CASE statements in Spin (thanks again, Ada!)
- Updated SD card code to work better and in more configurations (thanks to Evan and Ada)
Version 6.8.1
- Fixed using new keywords like `bytes` in parameters with default values
Version 6.8.0
- Added support for `%"xyzw"` constants in Spin2
- Added locking for host file system I/O
- Added `--compress` flag to compress binaries (courtesy of Ada)
- Fixed incorrect inline assembly for `#outb` and other hw registers
- Made `@foo.bar` work when `bar` is a label
- Supported PNut v43 `{Spin2_vNN}` version comments
Version 6.7.2
- Added putchar to libc.a
- Added another optimization for more AND x, #255 cases.
Version 6.7.1
- Added a memory read optimization in -O2, courtesy of Ada
- Added a peephole optimization for WRBYTE x,y after AND x,#255
- Fixed a problem in DEBUG() printing functions with multiple return values
- Fixed some 32/64 bit confusion in Spin comparison operators
Version 6.7.0
- Added new Spin2 lstring/bytes/words/longs keywords
- Added versioning for Spin2 language files, controlled by {$ver NN} or {vNN}
- Fixed potential bug in shl/shr peephole optimization
- Made SEND() work in the various bytecode interpreters
- More forceful warning for return without a declared result in Spin2
- Optimized 16 bit multiplications more often
Version 6.6.2
- Added warning (-Warray-index) for constant array indices out of bounds
- Allow warnings and optimizations to be turned off with a `no-` prefix (so `warn(no-init-vars)` is like `warn(!init-vars)`).
- Added some peephole optimizations to remove unnecessary sign extension
- Added peephole optimizations for sequences of shifts/adds/subs
- Parse --optimize= flag (spin2cpp) in a slightly more flexible way
- Some internal changes to make recovering from missing xxd easier
Version 6.6.1
- Changed type of `dat` array in C++ output to `unsigned char`
- Fixed function type usage in -2nu for some Spin method pointers
- Updated copyright notices in COPYING.LIB
Version 6.6.0
- Added pc_key and pc_mouse to -gbrk
- Added missing !! and ! postfix operators for Spin2
- Implemented proper boolean type for C
- Fixed -- operator for floats
- Made the BASIC boolean type a distinct type
- Made BASIC booleans print as "true" and "false"
Version 6.5.4
- Minor optimization improvement (and major documentation improvements) courtesy of Ada
Version 6.5.3
- Fixed an incorrect relocation check that caused spurious internal errors
- Implemented NAN() method for Spin2
- Implemented rename for host (9P) file system
- Improved error message for objects that are not found
- Reduced likelihood of duplicate function definitions in sub-objects
Version 6.5.2
- Really added BASIC date/time functions (inadvertently not checked in)
- Fixed *scanf() for floating point values
- Fixed a problem parsing attributes attached to static functions.
Version 6.5.1
- Changed some warnings about unused wcz flags into errors (when the corresponding instruction requires the flags)
- Fixed some problems with line numbers in errors & warnings after #include
- Fixed a potential bug with fcaching of loops with a branch between them (thanks to Ada)
- Fixed array access in ORG code in nu output
- Improved some error messages
- Various portability improvements for the source code itself
Version 6.5.0
- Added MKDIR function for BASIC
- Added support for NeoYume style ARGv parameters in C
- Added execl() function in C
- Added DATE$, TIME$, and SETTIME functions to BASIC
- Added rewind() function in C
- Allow arguments to be passed in the BASIC CHAIN function
- Fixed `-x` option in flexcc
- Fixed interaction between Parallax FS and stdio FILEs when multiple FILEs are open
- Fixed missing mbrtowc implementation
- Fixed overly agressive type checking on BASIC CPU() for asm code
- Fixed Spin2 issue with variables named `result` in void functions
- Implemented new Spin2 REPEAT n : i syntax (thanks, Ada!), and later added REPEAT n WITH i variant
- Keep a small FCACHE even in -O0, to allow ORG to function as expected
- Made _geterror() clear the error number
- Allow & operator for string concatenation in BASIC
- Re-factored some code to reduce bloat a bit
- Updated Parallax file system to new version from Chip and Stephen
Version 6.4.0
- Added getcrc() builtin for Spin2
- Added VFS layer for Parallax flash file system
- Added recognition for "$" and "%" to __builtin_atoi
- Changed littlefs to not return . and .. entries in path search (so it matches host fs and FATFS)
- Fixed compilation error for object arrays in bytecode
- Fixed some quirks in the space/tab warning code
- Fixed incorrect expansion of field[ptr][n]~~
- Fixed an incompatibility between _tx and debug()
- Fixed timeout in _rxraw() (test was wrong way around)
- Improved range of sin and cos functions
- Improved performance of flash access in littlefs (thanks, Evan!)
- Updated -gbrk code to most recent from Chip, and add support for brk #0 interactive debug (thanks, Ada!)
Version 6.3.0
- Added #pragma exportdef to make defines apply in other files. This
provides another way for top level objects to control sub-objects' behavior.
- Added freopen(), tmpfile(), mktemp(), and some other stdio functions
- Added some missing math functions
- Cleaned up PSRAM access methods and made them more consistent
- Correctly handled casts to void in nucode output
- Fixed some problems with sizeof() used to declare local variables
- Fixed incorrect multiple casting of union initialization
- Fixed incorrect evaluation of unsigned constant expressions
- Fixed an over-eager register rename in the optimizer
- Fixed a bug which caused incorrect type inference for method variables in P1 ROM bytecode
- Several improvements to C locale() related functions
Version 6.2.3
- Added strpbrk(), strcoll(), strspn() functions for the C library
- Fixed a potential crash in Spin2 parsing of @func()
- Fixed taking the difference of a pointer and generic value
Version 6.2.2
- Fixed some 64 bit constant issues with DIR/OUT/IN manipulation
- Make sure garbage collector does not reclaim BASIC I/O wrapper
- Reverted waitatn() change from 6.2.0
Version 6.2.1
- Added a check for i <= 0 in mid$(a, i, j)
- Fixed a bug in calculating fcache size
- Fixed @x-@y expressions in P1 bytecode DAT section
- Fixed some array offset calculations in P1 bytecode (thanks Ada)
- Fixed object arrays in P1 bytecode (thanks again to Ada)
- Fixed returning classes from functions, at least for some common cases
Version 6.2.0
- Changed waitatn() to use a pollatn() loop like the Spin2 interpreter does
- Extended littlefs code to allow multiple instances
- Fixed offset computation when structs have 8 byte subfields
- Fixed a bug in alignment of 64 bit integers
- Implemented new method pointer code for PASM backends that does not require memory allocation.
- Implemented interfaces in BASIC
- Optimized some 64 bit operations on constants (thanks to Ada)
- Various other assembly optimizations, again due to Ada
Version 6.1.8
- Changed maximum number of entries in multiple assignments from 8 to 16
- Fixed multiple uses of LET in BASIC programs
- Made sure class types are resolved when they are used as function returns
- Made UTF-8 the default encoding for FatFS (configurable via FF_LFN_UNICODE)
Version 6.1.7
- Added `DEBUG_DISABLE` constant to disable DEBUG() in Spin2 objects
- Added %b flag for binary output in printf
- Added ubin support for printf debug
- Made `virtual` a reserved keyword in C++
- Reduced memory usage of default printf
Version 6.1.6
- Added ability to double quote to include quotes in literal BASIC strings
- Allowed BASIC string constants to initialize other consts
- Fixed a problem with declaring new types that are arrays of objects
- Fixed a bug with calculating bits in BASIC direction() and output()
- Implemented flush() for FATFS files (thanks to Ada)
- Improved some error messages
- In C++ output, treat unknown types in prints as generic
- Made `interface` and `implements` reserved keywords in BASIC
- Made BASIC use of + operator on strings more consistent
- Optimized a few BASIC string expressions
- Optimized calculating length of string literals
Version 6.1.5
- Added warning about deleting unused user CORDIC instructions
- Fixed a bug in handling of (*X++) ^= N
- Fixed a bug when inlining functions with small local arrays
Version 6.1.4
- Fixed incorrect paths in libc.a
Version 6.1.3
- Allowed -I directives in .fpide files
- Fixed incorrect macro definitions in .fpide files
- Fixed a number of places where incorrect line numbers were used for errors
- Fixed an incorrect partially applied loop optimization
- Fixed language type used for BASIC main program when mixed languages are in use
- Improved handling of .. and . in C library
- Reduced register requirements for inlined functions
- Reduced some C/BASIC file I/O incompatibilities
Version 6.1.2
- Added files included by FILE directive to .zip files
- Fixed an optimizer bug around the P1 PHSx registers
- Fixed incorrect constant optimization of inline assembly (caught by Ada Gottensträter)
- Fixed some missing optimizations when -l was enabled
- Fixed incorrect assembly output for files not ending in newline when -l is on
- Fixed final value of loop variables after loop is transformed to djnz
- Fixed PTRx offsetting in C inline asm
- Fixed bugs in ELSE conditional assembly parsing.
- Implemented __builtin_expect (thanks, Ada!)
- Several additional optimizations contributed by Ada
- Skip symbol resolution when outputting .o files, fixes some output bugs
- Made object constant override expressions be evaluated in the parent object
- Minor optimization for expressions like 2*x
Version 6.1.1
- Added special -D_XTLFREQ=x and -D_XINFREQ=x command line defines
- Fixed IF in assembly debug
- Fixed constant SIGNX evaluation
- Made the preprocessor ignore characters after a line comment start (like ')
- Made jmp relative calculations act more like the official compiler
- Use proper full name for C include files in zip creation
- Remove .zip file on failed creation
Version 6.1.0
- Added basic support for compiling project files (.fpide or .side)
- Implemented ^@ and FIELD[] for Spin2
- Implemented conditional assembly instructions if, elseif, else, and endif
- Merged Ada's improved strlen() function
- Merged some register allocation improvements from Ada
- Provide syntax for C `struct using` to override constants in Spin2 objects
Version 6.0.5
- Fixed an optimizer bug with inlined functions
- Fixed a spurious "use before set" warning in sizeof()
- Improved the error message for try blocks in bytecode output
Version 6.0.4
- Fixed incorrect file name after #include in some rare cases (when the included file's name exactly matches the end of the original file)
Version 6.0.3
- Fix a bug in P1 listing file output
Version 6.0.2
- Fixed an internal error where BASIC array references sometimes look like calls
- Fixed some spurious warnings about 0-0 style operands in inline assembly
- Fixed number of blocks calculation in FatFS stat() function.
- Fixed some "unknown type xx passed to IsArrayType" errors
Version 6.0.1
- Added missing file for LittleFS file system.
Version 6.0.0
- Added interpreter and code size printing if --sizes is given
- Added atof() and strtof() functions
- Added %p format flag to printf
- Allow newlines inside BASIC initializations
- Automatically reset baud rate on _clkset()
- Disabled SIMPLE_IO printf optimization because it was interacting poorly with symbol resolution
- Fixed _ assignment in nucode output
- Fixed calculation of FVAR/FVARS when labels are unknown
- Fixed a problem with unnamed parameters not being counted in code generation
- Fixed _getus() and _getms() in -2nu
- Fixed _waitms and _waitus timing
- Fixed type of `_clkmode` on P2 (it was byte instead of long)
- Fixed compilation error on some signed multiplies
- Fixed calling varargs functions from Spin in bytecode
- Fixed BASIC LINE INPUT when no explicit file handle is given
- Fixed umount of SD card to clear pins in use
- Implemented _muldiv64 for bytecode
- Made Spin2 loop behaviour match that of other languages (like PNut v38)
- Optimized nucode output considerably
- Passing a NULL pointer to mount() now causes an error, rather than unmounting
- Some internal cleanups in the code generators
Version 5.9.28
- Added some simple loop optimizations to transform loops into DJNZ form at level -O1
- Fixed incorrect code generated sometimes for fetching the upper 32 bits of a 64 bit function result.
- Fixed REV operator in nucode output
- Improved performance of nucode generated code
- Optimized P1 multiply code (thanks to Ada for this)
Version 5.9.27
- Added some more missing functions from libc
- Added some additional asm optimizations thanks to Ada
- Fixed an out of memory crash due to nested structs in -O0
- Fixed assembly warnings that were accidentally broken
- Made more fatfs options settable on the command line (thanks, Ada)
- Made P2 signed multiply always generate inline code
- Optimized the 9p filesystem code somewhat
Version 5.9.26
- Added __FLEX_MAJOR__, __FLEX_MINOR__, and __FLEX_REV__ macros
- Added __asm__ alias for __asm in C
- Fixed a bug when __builtin_clz was applied to memory
- Improved performance of symbol resolution in sub-modules (some complicated code was so slow it seemed to hang)
Version 5.9.25
- Added __P1__ macro defined only for P1 compiles
- Added UMOUNT command for BASIC
- Added an `inline` attribute to encourage functions to be inlined
- Added _cogstart_cog and related defines to propeller2.h
- Added a new file libc.spin2 to make calling the C library easier from Spin2
- Fixed ALIGNL in Spin2 VAR blocks
- Improved some error messages
- Made heap corruption code check depend on -g flag
- Made sure variables are properly aligned in Spin2 for P1
- Tweaked file names in zip files to be compatible with more unzippers
Version 5.9.24
- Added --zip flag to create archive of source files
- Allowed __fromfile inside classes, and fixed symbol resolution for this case
- Fixed using local constants for default parameters in methods
- Fixed a compiler bug affecting fscanf
- Handled some more bitfield expressions in nucode & bytecode output
- Improved output of -f, and added #include'd files to that output
- Implemented ungetc function
Version 5.9.23
- Enable DEBUG in inline assembly if -gbrk is active
- Fixed .lbl+n expressions in inline assembly
- Fixed Spin2 loops so that the correct value is in the variable if the loop is quit
- Fixed Nucode evaluation of some bit operations
- Fixed a crash when duplicate names declared in anonymous structs
- Made sure all registers involved in a large data structure are allocated if any of them are used
Version 5.9.22
- Added control over individual warnings
- Define a symbol __DEBUG__ when -g or -gbrk is given
- Fixed indirect method pointer calls in Spin2 (like LONG[x](foo))
- Fixed compiling some boolean expressions involving 64 bit integers
- Fixed QCOS and QSIN when used with angles larger than twopi
- Fixed some signed/unsigned conflicts in Spin constant evaluation
- Made foo.[n] produce the same results on P2 as the usual Spin2 compiler, by having it extract the upper bits to find the range of bits affected
- New optimization to use SUMxx instructions if possible (thanks Ada!)
- New optimizations for memcpy/memmove (again, thanks to Ada)
- Removed <- and -> operators from Spin2 (use ROL and ROR instead)
- Revised P2 frequency calculations to match Chip's latest version
- Some floating point optimizations from Ada
- Several other miscellaneous optimizations from Ada
- Spin2cpp now respects '!cse' optimization flag.
- Warnings about C strings being passed to non-const pointers now only happen with -Wall
Version 5.9.21
- Automatically zero local Spin2 variables
- Fixed loop test for downwards loops with steps > 1.
- Fixed some problems with variable offsets in Spin
- Fixed an incorrect read/write optimization affecting assembly output
- Improved handling of two dimensional arrays in BASIC
- Improved handling of method pointers in Spin2
- Optimized ZEROX (thanks Ada)
- Optimize some "obvious" 64 bit shifts
- Restored generation of all public methods in spin2cpp C and C++ output
Version 5.9.20
- Added a new pass to re-calculate object sizes after symbol resolution (fixes some problems with memory overruns in C code used as Spin object)
- Added STRCOPY Spin2 function
- Fixed a crash when trivial C programs are submitted
- Fixed swapping 64 bit variables
- Fixed failure to change arrays to pointers in some C expressions
- Fixed 64 bit integer preincrement
- Fixed initializing local reference variables
- Fixed += and similar operators when used with references
- Implemented object constant overrides (object parameters) for Spin
- Implemented ... line continuation for Spin
- Inline assembly can now access multiple longs of large local variables.
- More fixes to C struct initialization
- Made debug output and C library output work better together
- Made repeat loops in Spin2 finish with the same value as in PNut
- Optimized initializers of large local variables
- Optimized long fills on P2 with SETQ (thanks to Ada Gottensträter again!)
- Remove unused methods even at -O0 optimization
- Relax type checking in C for pointer/integer conversion
Version 5.9.19
- Added a warning for mixing tabs and spaces in Spin code
- Added strtok() function to C library
- Fixed some incorrect C array declarations
- Fixed precision not being reset in printf
- Fixed incorrect leaf function analysis in Spin functions using floats
- Fixed lut function bug that crept in when memory was reserved at start of LUT
- Fixed padding while initializing structures
- Implemented -E and -H flags for nu bytecode
- Implemented SPR[] in bytecode (thanks to Ada Gottensträter)
- Improved register allocation in leaf functions (thanks Ada)
- Improved optimization for small wait loops (also thanks to Ada)
- Made SPR[] work more like Spin1 (thanks Ada)
- Reduced register usage in local array initialization
- Reimplemented TYPEOF to be more useful
Version 5.9.18
- Fixed missing # on output of jint style inline asm instructions
- Fixed some bugs in the BASIC open wrapper (handling of close and recv were dodgy)
- Fixed use of function aliases in submodules
- Fixed an address calculation bug in bytecode
- Made some nucode code generation improvements
- Minor tweak to preprocessor to better handle files that do not end with a newline
Version 5.9.17
- Added '=' as alternate immediate syntax for use in C macros.
- Added REGISTER keyword to BASIC
- Fixed ++ and -- operators for 64 bit variables
- Fixed signed modulus for 64 bit integers
- Fixed a bug in varargs handling for 64 bit values in bytecode
- Fixed output of C boolean operators in bytecode
- Fixed some problems with 32 to 64 bit casts in ASM output
- Fixed a bad check for immediate values in P1 rdlong/rdbyte/etc.
- Fixed a warning in BASIC about the _timezone variable.
- Made ALIGNW and ALIGNL keywords Spin2 only (some older Spin1 programs used these)
- On P2, allow coginit() of COG and LUT functions.
- Support register variables in C and BASIC
- Renamed LMM pc to __pc to avoid conflict with user code
Version 5.9.16
- Added UNION classes to BASIC
- Fixed a number of problems with 64 bit variables in bytecode
- Fixed an initializer bug in unions
Version 5.9.15
- Added definitions for PR0-PR7 registers in Spin2
- Added ORGH/END inline assembly in Spin2 for non-optimized hub based inline asm.
- Added MUXQ optimization for P2 pinwrite.
- Fixed several missing 64 bit arithmetic operations.
- Fixed evaluation of unary `+`.
- Fixed incorrect optimization around FCACHE.
- Made first 16 LUT registers reserved for user code.
- Prevent REP loop optimization in ORG and volatile asm
Version 5.9.14
- Added check for limit in ORG and ORGH
- Added warning for incompatible types in comparisons
- Fixed an incorrect optimization across calls
- Fixed dpeek/dpoke definitions in BASIC, and added lpeek/lpoke
- Improved support for 64 bit integers
- Increased default heap size on P2 to 6000 bytes
- Removed some bad debug printfs from sdmm.cc
Version 5.9.13
- Added base 4 and base 8 literals to BASIC
- Added __builtin_movbyts() intrinsic
- Added varargs support to bytecode backends
- Added PEEK, POKE, DPEEK, DPOKE, and VARPTR to BASIC
- Allow looking up static member variables and labels
- Fixed incorrect varargs leaf function optimization
- Fixed precedence of '\' in Spin when used for catching
- Fixed missing downcast when 64 bit arguments are passed to 32 bit parameters
- Fixed operator precedence of long @addr[n] in Spin DAT sections
- Make C const arrays always go into DAT, to save space
Version 5.9.12
- Added LINE INPUT to BASIC
- Added definitions for BUFSIZ and L_tmpnam to stdio.h
- Added FREEFILE function to BASIC
- Added new C intrinsics __builtin_bswap16, __builtin_bswap32, __builtin_parity, __builtin_popcount
- Changed the way C global variables are handled in objects; they used to always be shared between variables, but now can be proper member variables in some circumstances
- Fixed "CLASS USING" file name lookups inside CLASS in BASIC
- Fixed incorrect address calculation when AUGD is needed for CALLPA
- Made clkmode_ and similar symbols accessible in submodules
- Modified SD card code to (I hope) support multiple cards
Version 5.9.11
- Added BOOLEAN keyword to BASIC
- Added some additional optimizations (thanks again, Ada!)
- Added -Wextra flag (ignored for now) to flexcc
- Fixed -gbrk bug which crept in last release
- Fixed some problems parsing C function pointer type declarations
- Fixed some optimizations incorrectly happening to ORG/END assembly
- Fixed some other incorrect optimizations
- Fixed "extern" in C function definitions
- Made it so defining a _clkmode enum in C works as intended
- Reserved REDIM and PRESERVE keywords in BASIC
- Some more PASM optimizations from Ada (thanks!)
Version 5.9.10
- Added a LOT of helpful optimizations contributed by Ada Gottensträter
- Added __HAVE_FCACHE__ define if FCACHE is enabled (also contributed by Ada)
- Added --nostdlib flag to suppress default include files
- Added KILL function to delete files in BASIC
- Added ELSE clause to single line IF in BASIC
- Actually fail compilation if a preprocessor #error directive is found in Spin
- Fixed some bugs in time related functions
- Fixed FCACHE not being enabled during system module compilation
- Fixed a nasty condition code printing bug (thanks Ada!)
- Fixed DEBUG with multiple return valued functions
- Merged Ada's change to support Shift-JIS character encoding
- Merged Evan's smartpin SD card reading code for much faster SD card access on P2
- Updated FatFs to newer version
Version 5.9.9
- Added special preprocessor comments {$flexspin ... } for FlexSpin specific code.
- Allow dynamic sign/zero extend on P1 (thanks Ada)
- Fixed variable redeclaration in Basic OPTION IMPLICIT
- Fixed an immediate addressing bug that showed up with DECLARE ALIAS sometimes
- Fixed curdir$() problems in BASIC
- Fixed an issue with += of strings where the rhs is a function call
- Fixed some bugs in PUT/GET processing when the result is read
- Made dir$("*",fbNormal) skip directories
- Preliminary support for anonymous structures and unions in C
- Recognized new Spin2 BYTEFIT and WORDFIT keywords
Version 5.9.8
- Fixed a crash in nucode compilation
- Fixed DECLARE ALIAS in bytecode mode
Version 5.9.7
- Added some more bit-banging optimizations (e.g. bith/bitl -> bitc)
- Added a new optimization for simple FOR loops with constant bounds
- Added special function optimizations for pinread/pinwrite
- Added SIZEOF operator to BASIC
- Added BITREV function to BASIC
- Added ALIAS, DECLARE, EXTERN, LINE, and LIB keywords to BASIC
- Added support for DLY() to default -g debugging
- Added #pragma ignore_case directive
- Added DECLARE ALIAS to BASIC
- Allowed printing of pointers in BASIC
- Changed default runtime tests to use P2 instead of P1
- Fixed a few missing definitions in <propeller.h>
- Fixed a problem with SendRecvDevice() in BASIC
- Fixed an incorrect optimization for loops containing GOSUB
- Fixed multiple args in DEBUG() statements with -gbrk
- Fixed a problem with extern declarations in C not working in .o files
- Fixed in bug in mis-detecting use of result values in bytecode output
- Fixed a nasty bug for functions with more than 99 local registers used
- Fixed a bug in DIR$() in subdirectories of SD cards
- Fixed printing of values passed by reference
- Improved C++ compatibility for class functions, including supporting "static" in classes and declarations of functions outside the class
- Made RESULT no longer a reserved word in Spin2, should fix a number of bugs
- Optimized local variable push/pull (thanks Ada)
- Reduced number of temporary registers needed by the compiler
Version 5.9.6
- Added error for non-constant compile time initializers
- Allow ALIGNL and ALIGNW in VAR sections
- Fixed incorrect error when printing DEBUG expressions containing function calls
- Fixed error in assignment chain processing in Spin1 when one item is a function
- Fixed some bugs in parsing C struct declarations
- Issue an error for redefinition with different type inside a class
Version 5.9.5
- Added CHAIN #n for BASIC, and _fexecve(fd, argv, envp) for C
- Fixed incorrect static function detection when coginit is used (affected reSound)
- Fixed a serious memory overflow bug in fopen()
Version 5.9.4
- Added some error checking for parameters of CPU/coginit/cognew
- Added --charset=C for changing runtime character set
- Fixed Spin2 round(), trunc(), and float() operators for variable expressions
- Fixed multiply by -1 when local variables are on the stack
- Fixed expansion of macros which contain other macros
- Fixed ABORT in Spin functions with no return statements
- Fixed C _clkfreq constant in multiple enums problem
- Implemented subset of try/catch for C++
- Improved Catalina compatibility for spin2cpp
- Various improvements to the nu code backend
Version 5.9.3
- Fixed automatic detection of floats for printf/scanf
- Fixed optimizer errors on SCA, XORO32, and similar instructions
- Fixed a spurious warning about 0-0 in inline assembly
- Implemented new Spin2 floating point operations
- Prevent loops containing BRK from being optimized to REP
- Started to add some optimizations for Nu
Version 5.9.2
- Added internal definition for the BASIC number$ function
- Added experimental flag -2nu for P2 interpreter (not working much yet)
- Fixed some "backwards" repeat loops in Spin
- Fixed wrap around of getus and getms
- Fixed an optimizer bug around non-leaf functions in COG and LUT
- Fixed a problem finding extensions in -Wabs-paths
- Fixed definitions of if_x1 and if_1x condition codes
- Handled '+' and ' ' format characters in builtin printf
- Improved detection of some keywords like ASM in old code
- Improved output of expressions in DEBUG()
- New flag -gbrk for using Chip's BRK based debug output (Thanks Ada!)
Version 5.9.1
- Added support for bool, false, and true to C++
- Added some missing defines in stdint.h
- Added automatic I/O locking for PRINT, __builtin_printf, and DEBUG
- Added ability to have multiple items in BASIC CASE
- Added "ASM_CONST" keyword to Spin
- Added optimization for x==x in integer code
- Added check for re-defining member variables in classes
- Added _SameTypes() and _HasMethod() functions to BASIC to check data types
- Changed "ASM CONST" to "CONST ASM" in BASIC
- Fixed multiple assignments in Spin (a:=b:=c) to have the same semantics as Spin
- Fixed template functions so BASIC "string" type is preserved
- Improved --interp=rom (Spin1 bytecode output) to run more programs
- New optimization: -Oremove-features removes advanced file I/O features if not needed by the program; this can a lot of space. Enabled by default in -O1.
Version 5.5.2
- Added cpustop for BASIC
- Allow relative branches between COG and LUT RAM
- Cleaned up exec() and CHAIN to clear RAM before starting the new program
- Fixed a bug which could cause duplicate struct definitions in C
- Fixed an optimizer bug where reads/writes could be incorrectly re-ordered
- Fixed an error parsing += in BASIC array operations
- Fixed a bug in *s parsing in sscanf()
Version 5.5.1
- Added a warning for ignored second parameter to `org`
- Added -Os option; similar to -O1, but favors smaller size.
- Added #warning directive to C preprocessor
- Fixed Spin startup function (should be first PUB function, not first function)
- Fixed evaluation of @ inside CONSTANT
- Fixed assembly of PTRA++[0] and PTRA++[16]
- Fixed some spurious warnings about uninitialized variables
- Fixed an optimization error for BYTE[] and WORD[]
- Fixed incorrect unary assignment operator behavior in Spin
- Fixed ~x and ~~x at top level in Spin1
- Fixed SIGNX= and ZEROX= in Spin2
- Fixed compilation of MOUNT if there is no OPEN (not a useful case, but still)
- Improved COG memory usage
- Improved conversion of longmove() in Spin to handle labels
- Made objects come after all variables in Spin
- Merged colorized error message changes from Wuerfel21.
- Optimized PRINT CHR$(x) in BASIC
- ALPHA: new bytecode backend from Wuerfel21, accessed by --interp=rom. This is not finished yet but can compile many Spin1 programs.
Version 5.5.0
- Added warning for modifying ptra in inline assembly
- Added throwifcaught command for BASIC
- Allowed '$' in inline assembly in C
- Fixed a problem with large ranges in lookup/lookdown
- Fixed a preprocessor bug which sometimes caused failure to recognize comments
- Fixed a bug in handling multiple return values that are less than long sized
- If -Wall is given, warn about uninitialized local variables
- Implemented "public" and "private" in C++ classes
- Improved listing file output by adding RES and FIT entries
Version 5.4.3
- Clear all errors on successful open
- Fixed path lookup on Windows under cmd.exe
Version 5.4.2
- Added support for range cases (a ... b) to C
- Fixed constant evaluation of some Spin2 operators
- Fixed bitfield access to memory references
- Fixed mixing reads and writes in C stdio
- Fixed mixing fgetc and fread in C stdio
- Fixed a bug in determining types of Spin2 constants in other objects
Version 5.4.1
- Added __DATE__, __TIME__, __FILE__, and __LINE__ macros
- Added documentation for __VERSION__ macro
- Allowed wc and wz on indirect jumps on P2
- Check for gosub commands inside FCACHEd code
- Fixed incorrect common sub-expression elimination after labels
- Implemented some of the missing math functions from propeller2.h
Version 5.4.0
- Added some preliminary support for 64 bit integers (not complete yet)
- Added error for testp or testb used without flags
- Added --tabs=N for specifying amount of indent due to tabs
- Added support for __FUNCTION__ in BASIC and C
- Fix incorrect types in some const initializations.
- Fixed a problem with comments in the preprocessor
- Fixed incorrect line numbers after ASMCLK
- Fixed a bug in counting parameters when some are structs
- Fixed a bug in initializing arrays with modifiers like const
- Fixed parsing of ?: in Spin2
- Fixed some union initializer bugs
- Fixed setnib/setbyte/setword encoding for abbreviated forms
- Fixed an optimizer bug in loop strength reduction
- Handle mixed float/int in C ?: operator by promoting one side as necessary
- Made some low level C functions builtins
- Made FCACHE size settable on P2
- Support debug_baud macro to some degree
- Set default baud rate for C and BASIC based on -D_BAUD=n macro
- Tweaked listing file output slightly to include comments at end of file
Version 5.3.2
- Accept ' as a digit separator as well as '_' (C++14 uses single quote)
- Avoid FCACHE in FCACHE (e.g. for loops with empty org/end)
- Disable inlining for functions explicitly placed in COG or LUT memory
- Cleaned up ABORT handling to be Spin2 compatible
- Improved removal of DEBUG() statements when -g is left out
- Some internal changes for 64 bit support (still a work in progress)
- Support ptrx[N] syntax in inline assembly
Version 5.3.1
- Added aliases for _pinw, _pinl, and _pinh in Spin (to match the documentation).
- Better error messages for some bad C function declarations.
- Cleaned up operator precedence to match Spin2
- Fixed typos in SmartSerial.spin that made it stop working
- Improved accuracy of parsing floating point constants.
- Provided default dummy functions for send() and recv()
Version 5.3.0
- Added SimpleSerial object for P1/P2 compatibility
- Added _lockrel() function for C
- Added header file with smartpin definitions (not strictly necessary in flexspin, but useful for compatibility with other compilers and Visual Studio)
- Adjusted output of floats in PRINT USING
- Allowed pin -1 to mean "no pin" in SmartSerial
- Changed the trivial Spin stub in P1 code to be compatible with openspin
(this allows flexspin to be used to make the PropLoader fastloader)
- Changed handling of ? operator in Spin2 to be compatible with PNut
- Extended DEBUG() capability to include some backtick features
- Fixed argv[0] handling in the command line tools
- Fixed use of FCACHE in inline assembly in LUT and COG functions
- Fixed BASIC input when 127 (DEL) is read (Unix terminals use this for backspace)
- Fixed a problem with parsing floating point numbers with 32 bit compilers
- Fixed use of instructions as operators in DAT section
- Fixed parsing of large floating point numbers
- Ignored DEBUG statements completely unless -g is given
- Really fixed RECV return value
- Even in -O0, remove unused functions in C subclasses (avoids problems with duplicate symbols in stdio)
- Supported pin fields in Spin2 pin control functions
Version 5.2.0
- Added GET as keyword to BASIC
- Added GET and PUT binary I/O to BASIC
- Added _vfs_open_sdcardx() to allow explicit setting of pins for SD card
- Added new option -Wmax-errors=N to allow more errors to be printed in a run
- Added new option -Wabs-paths to print absolute paths in error messages
- Changed Spin2 member variables to be layed out in the order declared
- Fixed QCOS, QSIN
- Fixed a crash with negative ending values in repeat
- Fixed a problem with SEND(func(...)) in Spin2
- Fixed a problem with initializing two dimensional C arrays with strings
- Modified P2 serial receive to use @evanh's suggestion of 28 bit aqsync receive (so it is effectively 3 characters at a time)
Version 5.1.1
- Added QCOS and QSIN to Spin2
- Added _execve() and CHAIN functions to chain programs
- Added mkdir() function for host file system
- Fixed handling of getcwd for subdirectories
- Fixed handling of DEL in fgets() function
- Fixed GOSUB (it had bit-rotted and no longer worked properly)
- Made EXIT LOOP a synonym for EXIT DO
Version 5.1.0
- Added support for Spin2 constants clkmode_ and clkfreq_
- Added built in ASMCLK macro for Spin2
- Added CALL statement in BASIC
- Added improved error handling for BASIC
- Allow semicolons to seperate lines in C inline assembly (this makes it possible to put inline assembly in macros)
- Fixed another optimizer issue affecting C struct returns
- Fixed undefined _basic_print_unsigned error.
- Fixed a bug with pin ranges where the limits are variables and are given in (lo, hi) order
- Fixed bitfields in C structs being multiply defined
- Fixed sscanf() and similar string functions not working
- Fixed type of RECV() pointer in Spin2
- Fixed isprint() function in C
- Implemented FRAC operator for P1
- Implemented new (more accurate) IEEE floating point math routines
- Increased default buffer size for I/O on P2 (speeds up 9p operations)
- Made "append" mode force seeks to end of file before writes
- Made "_waitms" and "_waitus" work for long waits (more than a system counter rollover)
- More improvements to the BASIC strings library, again courtesy of JRoark
- New functions __builtin_frac, __builtin_mulh and __builin_muluh for C
- Put a "nop" at P2 address 0, so NULL pointers will act like empty strings
Version 5.0.8
- Added a warning for casting const pointers to non-const
- Added missing tan function to math.h
- Fixed Spin2 pinread to work correctly with multiple pins
- Fixed an optimizer bug that could cause corruption of small multi-word structs being returned from a C function
- Properly implemented compile time optimization of BASIC ASC("x") function
- New BASIC string functions from JRoark: improved implementations of some existing functions, and added functions CountStr, RemoveChar$, ReplaceChar$, and StrInt$
Version 5.0.7
- Added code to support _ret_ in inline assembly
- Fixed rdlong x, ptra[##BIG] instruction form
- Fixed some bugs in cog_run
- Fixed bit references in arrays like A[x].[y]
- Fixed uhex() bug where it only output 1 bit
- Fixed a serious off-by-one error in garbage collection code
Version 5.0.6
- Added cog_* functions from libsimpletools
- Added get_directions() and get_outputs() functions from simpletools
- Added getms() in Spin2
- Documented _pinstart() function for C
- Fixed an off-by-one in the BASIC INSERT$ function.
- Fixed errors in declarations of C modf() and frexp() functions.
- Fixed read() on terminal to break on newline if applicable
- Improved error messages for type mismatches.
- Made libsimpletext text read use _rxraw() to avoid echo.
Version 5.0.5
- Added the EVENT_* symbols for Spin2
- Added warnings for use of RES memory
- Fixed lseek with SEEK_END on 9p file system
- Fixed error reporting for bad rdxxx/wrxxx pointers
- Improved checks for language when no explicit extension is given in object names
- Updated BASIC documentation to include some built-ins that weren't documented
Version 5.0.4
- Added protection for multiple cogs calling memory allocation
- Added NEWCOG constant for COGSPIN
- Fixed a serious peephole bug in TEST/AND merging
- Fixed printing of NULL strings in BASIC
- Fixed error for wrong variable in BASIC NEXT
Version 5.0.3
- Added new reserved word `private` in BASIC (not used yet)
- Changed Makefile to accept YACCVER=bison2 or YACCVER=bison3
- Fixed off-by-one error in fs9p code
- Fixed an off-by-one error in BASIC numeric formatting
- Fixed a bad calculation in p2_clock.h
- Fixed a problem with assignment operators like += in BASIC
Version 5.0.2
- Added "noinline" attribute
- Added a warning for some non-terminating loops
- Fixed a compiler warning in ff.cc
- Fixed a bug with returning structures in C
- Fixed an optimizer bug with trying to replace ptra++
- Fixed an overly aggressive loop reduction optimization
- Made BASIC open command use "throw" to report errors
Version 5.0.1
- Added getms() and getus() for BASIC
- Allow ptra++ in BASIC assembly
- Allow use of constants from other objects in inline assembly
- Allow access to array member variables in Spin
- Convert "ret" in inline assembly to a jump to the end of it
- Fixed a C parser crash
- Fixed a problem with padding C structs
- Fixed a bug parsing strings in C __pasm
- Provided separate namespace for labels in C
- Removed support for Rev A silicon (it was not working anyway)
Version 5.0.0
- Renamed "fastspin" to "flexspin"
- Added "flexcc" compiler front end
- Added --version flag to fastspin
- Added asin(), acos(), atan(), atan2() to BASIC
- Fixed BASIC ^ operator when used with --fixedreal
- Made sin() and cos() work with --fixedreal
- New atan2() implementation using the CORDIC on P2
Version 4.5.0
- Added a warning for C functions with mismatched parameters (it used to silently accept this)
- Added "." character for PRINT USING in BASIC
- Added support for binary floating point constants in C
- Added __builtin_clz() for C
- Added gettimeofday() / settimeofday()
- Added scanf() family of functions for C
- Allowed empty FOR loops in BASIC
- Fixed a number of problems in C struct initialization
- Fixed printing floats in C when --fixedreal is given
- Fixed BASIC FOR loops with negative floating point steps
- Fixed binary and hex constants in C to be unsigned when appropriate
- Fixed a problem with passing small arrays as parameters in C
- Fixed ^ in BASIC
- Made expf and logf use the CORDIC on P2 and ROM on P1
- Made FIXED a reserved keyword in BASIC (for future expansion)
- Updated time functions to work sensibly.
Version 4.4.0
- Added simplified designated initializers (like { .x=1 }) for structs and arrays
- Added float_t and double_t to math.h
- Added fseek() and ftell() stdio functions
- Added Spin2 RECV pointer
- Fixed a hang due to multiply processing modules
- Fixed djnz out of range on P2
- Fixed \0 inside C strings
- Fixed x[n].method() type calls in Spin2
- Fixed x[n].[a] method reference lookups in Spin2
- Fixed some bugs in structure passing/return
- Fixed incorrect FOR loops using unsigned integers if counting down to 0 or up to MAXINT
- Fixed order of declarations for C enums
- Fixed nested initializers in C
- Improved warnings about missing # in PASM
- Made SEND pointer per-COG
- Made some local Spin arrays be held in registers
- Made SPR keyword be Spin1 only (in Spin2 it is "REG")
- Modified inline assembly to allow for accessing array variables
- Reduced the delay for SD card communication to speed up FatFs
- Save/restore SEND pointer in Spin2 if it is modified by a function
Version 4.3.1
- Added HUBSET(), POLLATN(), WAITATN()
- Fix void function calls in SEND
- Fixed some debug function formatting
Version 4.3.0
- P2 API Change: use call/ret instead of calla/reta
- Added finer-grained control over optimizations
- Added per-function control over optimizations
- Added preliminary implementation of DEBUG() for Spin2
- Fixed some bugs in cse and loop optimizations
- Fixed byref parameters in BASIC template functions
- Improved dead code removal
Version 4.2.8
- Added -Werror flag to turn warnings into errors
- Fixed an optimizer bug which could incorrectly delete some conditional statements
- Fixed inlining of static functions
- Made ORG force long alignment
Version 4.2.7
- Added missing waitvid builtin for P1
- Added some additional language compatibility warnings
- Better warning messages for redefining member variables
- Changed default C preprocessor mode to be GCC compatible
- Fixed some C definitions in propeller2.h
- Fixed BASIC printing of floats
- Fixed some problems with .word[N] assignments
- Fixed unnecessary jmp warning when listing file is output
- Improved heuristic for deciding between if statements and jump tables for case statements
- Optimized mul/div sequences with immediates
- Optimized jump tables on P1
Version 4.2.6
- Added sanity check for removing inlined functions (fixes an optimizer bug)
- Added __andthen__ and __orelse__ operators to Spin/Spin2.
- Fixed an optimizer bug in renaming registers
- Fixed assignments like x.byte[1] := y
- Fixed Spin AND and OR operators to evaluate both sides if they have side effects.
- Improved some error messages
- Merged improved P1 multiply/divide routines from Wuerfel21.
Version 4.2.5
- Added many more peephole optimizations
- Added -Wall flag for more warnings, including about language extensions
- Fixed the #warn preprocessor directive
- Fixed a bug in operator assignment (like +=) when both sides have side effects
- Fixed an optimizer bug where some conditional instructions were overlooked in optimizing cmp #0 cases
- Fixed a typo in TAN causing it to return bad values
- Fixed constant(@x - @y)
- Implemented _FREE and _STACK