Reminders

Things that might be considered to be evaluated/implemented/included…

• Fix standard compliance problems in the preprocessor.
• Braces in initializers work in a non standard way, standard compliant initializer with braces are not always accepted.
• Fix issue with goto into a block that declares a local label.
• Make fastcall the standard.
• Floating point support

• Fix issues with o65 format.
• Fix internal error in complex setups where the precalculated memory setup differs from the one determined later.
• Map files do not work for o65 output in presence of external symbols.
• Add option to omit generation of output files if the file length is zero (useful for unused overlays).
• Intel hex output.
• Segment overlays.

• Add capability to call other external programs for processing, for example Pucrunch.

• Complete multiplication and division routines. Currently it's somewhat a mess.
• The changes in the TGI library need a review and cleanup. The new vector font routines need testing, docs and maybe a sample program. Clipping is probably not implemented (needs check).
• There's a function tgi_imulround() - declared in tgi/tgi-kernel.h - that can be used with tgi_getaspectratio() to scale a value “up” by the aspect ratio. However it is as well desirable to be able to scale “down” by the aspect ratio - maybe with a function called tgi_idivround().
• Implement an alternative “naive” heap manager that simply increments a pointer for every allocation (and doesn't actually de-allocate anything) to allow i.e. the module loader to be used without linking in the full blown heap manager.
• Discuss if it is desirable to have standard SER and/or EMD drivers - like the standard JOY, MOU and TGI drivers.
• Several formats in printf are broken: printf(”%04d”,-12) and printf(”%#04x”,12) are examples.
• Abstract printer support.

• Implement the DIO interface.
• Implement a Userport SER driver based on George Hug's 'Toward 2400' source code - http://archive.org/details/transactor-magazines-v9-i03
• Remove prepending “0:” / “1:” to POSIX filenames - http://www.cc65.org/mailarchive/2012-08/10683.html
• Review handling of O_… flags in POSIX open().

• Implement OUTTEXT in the TGI driver.
• Implement Soft-80 CONIO support as an “extra” .o file that “overrides” the cputc.o in the C library.
• Add extra EMD and joystick drivers.

• If possible do that “blinding” of the keyboard scanner while any button/switch is active which was done for the C64-1351 driver for the C128-1351 driver too.
• Implement OUTTEXT in the TGI drivers.
• Find ways to increase the RAM size available to cc65 programs.
• Test EM drivers with multidemo sample and fix the broken ones.

• Implement lseek().
• Update documentation to reflect the current linker configs.
• Have the EM driver detect AUXMEM and cooperate with /RAM.
• Implement a TGI driver that “hides” the hires screen using AUXMEM.
• Allow _sys() to call ROM routines.
• Add cmdline support to exec().
• Add support for visible cursor on cgetc().

• Add dio_query_sectcount() to complete the DIO implementation.
  • algorithm as follows (see http://www.cc65.org/mailarchive/2012-10/10974.html):
    • Read the 4th sector. (the xf551 drive had a bug, it returned the wrong PERCOM info after reading the normally 128-byte boot sectors, a read from sector 4 eliminates this chance)
    • Read status (SIO command 0x53) and save that info.
    • Request a PERCOM block. If it succeeds use that information.
    • If reading PERCOM block fails assume 1050, 810 (or even 815) or compatible. Use the status byte 0 to differentiate between single, enhanced (medium) and double density. (bit 5 is set if double density and bit 7 is set if enhanced density). If we're only looking for sector count, only the bit 7 matters.
• Implement the functions in device.h and test them with samples/enumdevdir.c.
• Implement exec().
• Add documentation for TGI and EMD drivers.

• Make dio_query_sectcount() less naive.
• Adjust the MOU driver to the current MOU kernel interface.
• Implement the functions in device.h and test them with samples/enumdevdir.c.

• Update a font engine sample “tgi-preview”.

• Integrate Groepaz test suite and do nightly automated tests to improve the overall quality.