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Commit Graph

9 Commits

Author SHA1 Message Date
Christian Groessler
e2d14291b7 make BSS segment optional in atari-cassette.cfg 2016-05-25 01:29:00 +02:00
Oliver Schmidt
692f96409d Fixed BSS properties.
The cassette boot file header references __BSS_RUN__ so BSS must be the first bss type segment (and for sure isn't optional).
2016-03-13 22:13:41 +01:00
Oliver Schmidt
d8c31cf1d3 Renamed RAM to MAIN for all disk based targets.
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.
2016-03-07 01:28:55 +01:00
Oliver Schmidt
419eb700b5 Renamed INITBSS to INIT and INIT to ONCE.
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.
2016-03-06 21:27:19 +01:00
Oliver Schmidt
76a5a72403 Adjusted current working directory initialization on Apple and Atari.
Moving __cwd from BSS into INITBSS does of course ;-) not only impact the CBM targets but all targets with disk I/O support.

Note: Code using `__cwd-1` may trigger an ld65 range error because __cwd may end up at the very begining of a segment. As far as I see this is an ld65 bug which I'm not try to fix - at least here.
2015-10-15 00:15:38 +02:00
Christian Groessler
4b58a20b8c Increase the default start address a bit in case BASIC is started
('OPTION' not pressed at power on). It would otherwise overwrite parts
at the beginning.
2014-02-21 23:34:05 +01:00
Christian Groessler
81fe7a3805 cleanups; split 'header' and 'init' part into two source files 2014-02-21 22:43:44 +01:00
Christian Groessler
478da8e51f load CASHDR segment into RAM 2014-02-20 00:45:48 +01:00
Christian Groessler
057884ffa9 Atari: initial support to create cassette bootable programs -- unfinished 2014-01-02 19:28:22 +01:00