Release 0.4.3: Graphics / plotting stabilization

New features:

• Released binaries for DM32, seem to be working (use DB50X files)
• Parametric and polar curves (#364)
• Function, Polar and Parametric can be used to plot from stack (#339)
• ResetModes command (#315)
• Add Clip command to control screen clipping rectangle (#313)
• Separate "graphic" mode (#342)
• Add CAS numeric / symbolic flag (#346)
• Accept functions that use the independent variable from PPAR (#352)
• Source code comments (#94)
• Add a demo state file (#355)

Bug fixes:

• Scaled coordinate system was upside down (#331)
• Skip errors during function plot (#329)
• Make ->Num work on equations (#345)
• Fill glyph background over whole height of font (#335)
• Refresh screen correctly after drawing axes (#328)
• Refresh screen better during plotting (#337)
• Save line width, foreground and background in state (#338)
• Correctly skip closing parentheses for "legacy" complex syntax (#336)
• Workaround QSPI fast-read bug on DM32 to avoid crashes (#304)
• Parsing pi in equations as built-in command, not symbol (#347)
• Do not leak errors during plotting (#354)
• Missing trailing space when rendering lists (#361)
• Correct parsing of based integer at end of a list (#362)
• Emit error if missing variable in for next (#363)
• Fix backward conversion from radians for fractions (#365)
• Execute local variables when evaluating them (#366)
• Fix 'EXIT' key to interrupt program in Wait (#356)
• Convert coordinates from based numbers as unsigned (#368)

Enhancements:

• Switch to 32-bit graphic coordinates (#334)
• Clip lines more efficiently to clipping rectangle (#332)
• Draw axes by default when plotting (#353)
• Change position of type in connstructors (#343)
• Add 'save' internal utility to save/restore scoped variable (#349)
• Optimize special case of polar addition / subtraction with same argument
• Updated PNG / SVG files for overlay
• Disp goes to new line at original horizontal position (#358)
• Add -m option to pass memory size to simulator (#367)
• Make symbol comparison for dependent variable case-independent (#369)

Signed-off-by: Christophe de Dinechin christophe@dinechin.org

Full Changelog: v0.4.2...v0.4.3