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Reminders
Oliver Schmidt edited this page Aug 27, 2013
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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.
- 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)
andprintf("%#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://oliverschmidt.github.io/cc65/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://oliverschmidt.github.io/cc65/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.
- algorithm as follows (see http://oliverschmidt.github.io/cc65/mailarchive/2012-10/10974.html ):
- 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.
- The BGI → TGI font converter doesn't have docs.
- Update a font engine sample 'tgi-preview'.
- Integrate Groepaz test suite and do nightly automated tests to improve the overall quality.