The name RAM doesn't make much sense in general for a memeory area because i.e. the zero page is for sure RAM but is not part of the memory area named RAM.
For disk based targets it makes sense to put the disk file more into focus and here MAIN means the main part of the file - in contrast to some header.
Only for ROM based targets the name RAM is kept as it makes sense to focus on the difference between RAM and ROM.
The way we want to use the INITBSS segment - and especially the fact that it won't have the type bss on all ROM based targets - means that the name INITBSS is misleading. After all INIT is the best name from my perspective as it serves several purposes and therefore needs a rather generic name.
Unfortunately this means that the current INIT segment needs to be renamed too. Looking for a short (ideally 4 letter) name I came up with ONCE as it contains all code (and data) accessed only once during initialization.
So far the INIT segment was run from the later heap+stack. Now the INIT segment is run from the later BSS. The background is that so far the INIT segment was pretty small (from $80 to $180 bytes). But upcoming changes will increase the INIT segment in certain scenarios up to ~ $1000 bytes. So programs with very limited heap+stack might just not been able to move the INIT segment to its run location. But moving the INIT segment to the later BSS allows it to occupy the later BSS+heap+stack.
In order to allow that the constructors are _NOT_ allowed anymore to access the BSS. Rather they must use the DATA segment or the new INITBSS segment. The latter isn't cleared at any point so the constructors may use it to expose values to the main program. However they must make sure to always write the values as they are not pre-initialized.
Moved getdevice.s from 'c64'/'c128' to 'cbm' making use of the new 'ST' setup.
git-svn-id: svn://svn.cc65.org/cc65/trunk@5834 b7a2c559-68d2-44c3-8de9-860c34a00d81
area had been used but not defined in the linker config. Changed the startup
module and the linker config to use the common loadaddr and exehdr modules.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4870 b7a2c559-68d2-44c3-8de9-860c34a00d81
named EXEHDR.
* Renamed BASICHDR to EXEHDR for the PET-II machines.
* Moved the call to CHRCH in front of the code that saves the zero page, since
open files are sometimes remembered in the zero page, so we need to close
them before we grab a copy.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4507 b7a2c559-68d2-44c3-8de9-860c34a00d81
main() is encountered. Define this symbol in the startup code. This will
automatically force linking of the startup code which can then reside inside
the standard library as any other object file.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3988 b7a2c559-68d2-44c3-8de9-860c34a00d81
before calling initlib because initlib calls contructors and may install
drivers, which enable hardware interrupts. Similar for donelib.
See also R3897 where this change was done for other platforms.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3951 b7a2c559-68d2-44c3-8de9-860c34a00d81
assembler (and probably compiler) can be determined from a compiled
executable. Nice idea from Stefan Haubenthal.
git-svn-id: svn://svn.cc65.org/cc65/trunk@2880 b7a2c559-68d2-44c3-8de9-860c34a00d81
mostly from the C64 version which is tested and works).
Improved interrupt handling (was needed for the driver).
git-svn-id: svn://svn.cc65.org/cc65/trunk@2754 b7a2c559-68d2-44c3-8de9-860c34a00d81
to emulate these functions on platforms where one or more of these functions
are not available (PET, CBM-II).
git-svn-id: svn://svn.cc65.org/cc65/trunk@1544 b7a2c559-68d2-44c3-8de9-860c34a00d81
module constructors/destructors and remove the conio init functions that
were called from the startup code.
git-svn-id: svn://svn.cc65.org/cc65/trunk@479 b7a2c559-68d2-44c3-8de9-860c34a00d81
