Turbo51

Version 0.1.3.17, released 25.06.2013

• Fixed bug: Wrong register optimization in some rare code patterns involving Rn
• Fixed bug: Wrong comparison (= and <>) for real values in some cases
• Fixed bug: Compiler crashed in some cases when using function Abs with integer variables
• Fixed bug: Temporary variables used by some procedures in the System unit were not saved during interrupts
• Fixed bug: Error reported in assembler statements with relative jump and bit variable located in bit-addresable byte

Turbo51

Version 0.1.3.16, released 14.10.2012

• Fixed bug: Wrong register optimization in some cases involving XDATA variables
• Fixed bug: Wrong optimization in some cases involving multiplication of 16-bit data with 256
• Fixed bug: Wrong variable type of typed constants in the CSV file

Turbo51

Version 0.1.3.15, released 15.07.2012

• Fixed bug:   Using the -O or -OX switch without the -G switch crashes the compiler

Turbo51

Version 0.1.3.14, released 10.07.2012

• Fixed bug: System procedure Val reported error when converting numbers with two digit exponent
• Fixed bug: System procedure Val didn't reported error when mantissa or exponet in real number was missing
• Fixed bug: Wrong register optimization in some cases involving integer comparison
• Fixed bug: Wrong order of optimized PUSH / POP instructions in some rare cases
• Fixed bug: Wrong stack frame initialization in some cases
• Fixed bug: Wrong conversion of character to string in some cases
• Fixed bug: Few bugs in heap management
• New feature: Variable types in map file
• New feature: CSV symbol file (generated with map file)

Turbo51

Version 0.1.3.13, released 09.03.2012

• Fixed bug: Wrong register optimization in system function Abs for integers
• Fixed bug: Bug in calculation of unary minus for Real variables

Turbo51

Version 0.1.3.12, released 01.02.2012

• Fixed bug: Typed constant pointer declaration in some cases generated Internal error
• Fixed bug: Wrong optimization in some rare cases due to register not marked as live
• Fixed bug: Missed CSE optimization opportunities in main program block
• Fixed bug: Wrong optimization in some rare cases involving SWAP A instruction

• Fixed bug: Overflow in arithmetic operation reported in some rare occasions
• Fixed bug: Wrong address of indirectly addressed arrays was calculated in some cases
• Change: Added separate report on time spent on compilation and optimization

• Fixed bug: Internal error in some rare occasions
• Fixed bug: Some peephole optimizations didn't mark newly created live registers
• Change: Improved internal memory management to avoid "Out of memory" error when optimizing huge program blocks
• Change: Extended Linear Address Record is no longer written to the HEX file as it causes problems with some loaders

• Fixed bug: Wrong comparison of LongInt and Real variables with negative values
• Fixed bug: Wrong result of system function Val for Real parameter
• Fixed bug: Writeln and Readln without parameters ignored DefaultFile set to On
• Fixed bug: Readln stopped reading on CR character
• Fixed bug: BIN/HEX/U51/OMF output directory with spaces generated error
• Fixed bug: Compiler crashes when assigning a value in register B to indirect address (e.g. result of mod operation to var parameter)
• Fixed bug: Internal error when declaring absolute variable at var parameter
• Change: Various improvements in optimization algorithms
• New feature: Added support for interrupts at Interrupt address + CodeStart address (used for some monitors like PAULMON2)

• Fixed bug:   Bug in system function Val

• Fixed bug:   Wrong instruction address generated in some cases when using Word or LongInt variables at absolute addresses

• Fixed bug: Wrong instruction address generated in some cases when using variables at absolute addresses

• Fixed bug: Calling virtual methods does not work (bug in system procedure sysCallVirtualMethod)
• Fixed bug: AJMP/ACALL ConstantAddress reported error
• Fixed bug: MOVC @A+PC reports error "Unknown Identifier 'PC'"
• Fixed bug: Internal error on calling procedure at absolute address
• Fixed bug: Internal error in some rare cases
• New feature: Added directives $REGION and $ENDREGION to support collapsible regions in some editors
• New feature: Added directive $MEMORY as longer version of the $M directive

• Fixed bug: Wrong HEX file (at address $0002) in some rare cases

• Fixed bug: Compiler crashes while trying to report "Procedure outside of CODE segment" error
• Fixed bug: IDATA memory usage not reported if delcared in unit
• Fixed bug: Wrong IDATA directive processing in some cases
• Fixed bug: Wrong optimization of BitAddress1 := not BitAddress2 in some cases
• Fixed bug: Wrong optimization of RRC A in some rare cases
• Fixed bug: Wrong optimization of Case statement range lower limit comparison in some cases
• Fixed bug: instructions with R4 and R5 before call to the sysLongIntToReal were removed in some cases
• New feature: Improved code for Case statement range lower limit comparison
• New feature: Support for any extension of unit source files

• Fixed bug: Wrong stack size reported when IDATA memory is not present
• New feature: Program code can start at any address
• Change: Compiler directive $M has now syntax $M [code start], [code size], [xdata start], [xdata size], [heap size]

Warning: The syntax of compiler directive $M has been changed. Make sure all references are updated with the new syntax.

• Fixed bug: Compiler crashes when generating OMF file without map file (command line option -O without -G)

• Fixed bug: Unreachable RET/RETI at the end of assembler procedure is not eliminated
• Fixed bug: Private methods crashed compiler
• Fixed bug: $M directive in unit not reported as error
• Fixed bug: Instructions to load ACC before JB ACC.n, Label in inline procedure were removed in some cases
• Fixed bug: Initial high byte XSP calculation uses ADD instead of ADDC
• Change: Reported time is now only time during compilation and optimization (excluding time for writing files)
• Change: Interrupt assembler procedures do not automatically save registers and switch register bank
• New feature: Added compiler directive InlineCode
• New feature: Generation of detailed map file
• New feature: Generation of absolute OMF-51 file including extended records for source-level debugging
• New feature: Procedures can be placed at specified absolute address

Warning: Unit file format has changed. Delete all unit files (*.u51) compiled with old versions of Turbo51 or use command line option /B to rebuild all units.

• Fixed bug: Compiler crashes when calling procedure/function with boolean and non-boolean parameters

• Fixed bug: Internal error when complementing bit absolute BitAddressableVar.Bit
• Fixed bug: Internal error on record field of type Array of Boolean
• Fixed bug: Asm statement: Internal error accessing BitAddressableVar.Bit
• Fixed bug: Wrong sign extension in some cases
• Fixed bug: Missed some optimization opportunities
• Fixed bug: Internal error for operations on set with non-constant element in IDATA memory
• Fixed bug: In some cases wrong address was generated for BitAddressable variables
• Fixed bug: External variables with unique names were written in assembler file with wrong name
• Fixed bug: Error on recompilation of unit which defined interrupt procedure
• Fixed bug: Memory leak when error was reported
• Fixed bug: Optimization of JNZ to DJNZ or CJNE when A was live
• Fixed bug: Temporary variables placed at wrong address
• Change: Major improvements in source files processing
• Change: Improvements in source line marking relative to generated code
• Change: Minor improvements in error reporting in some cases
• Change: Minor improvements for operations on sets in XDATA memory with non-constant element
• New feature: Removed limitations for include files (now they can be almost anywhere)
• New feature: Support for inline procedures
• New feature: Support for LongInt Case constants
• New feature: System procedure Change (Set, Element)
• New feature: Added command line option /C to report also error column

Warning: Unit file format has changed. Delete all unit files (*.u51) compiled with old versions of Turbo51 or use command line option /B to rebuild all units.

• Fixed bug: Internal error on some integer operations
• Fixed bug: Wrong comparison of integer byte and word operands in procedures marked with UsingAny directive
• Fixed bug: Internal error when some redundant code was removed by the optimizer
• Fixed bug: Jump to $0000 caused by System procedures Val and Str
• Fixed bug: various bug fixes in Asm statement
• Change: Directive 'Recursive' changed to 'Reentrant'
• New feature: Assembler statement: registers B, DPL, DPH, SP have precedence over locally defined variables with the same name
• New feature: Compiler directives are not case sensitive anymore
• New feature: Added switch $AbsoluteInstructions (short version: $A) to generate AJMP/ACALL instructions
• New feature: Added library Turbo51A.l51 with AJMP/ACALL instructions and command line option /LA to use this library (Turbo51A.l51)

• Fixed bug: 'in' operator with constant set (element was not saved to R1)
• Minor improvements in error reporting
• Minor changes in file handling