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Commit Graph

6805 Commits

Author SHA1 Message Date
Christian Groessler
6d7dfad80b add support for XDOS command lines 2016-05-24 03:06:00 +02:00
Christian Groessler
03cb0bd2fd atari.inc: add XDOS defines and remove trailing whitespace 2016-05-24 03:06:00 +02:00
greg-king5
b0e929420b Merge pull request #289 from OzHawk/patch-1
Update the missing entries in the kernel jump table for the Vic20 wit…
2016-05-15 22:48:03 -04:00
OzHawk
1369bed881 Update kernal.s 2016-05-16 08:41:13 +09:30
OzHawk
8bd2628d1e Update the missing entries in the kernel jump table for the Vic20 with the actual function addresses.
The Vic20 does not have kernal table entries for the following functions.

;-----------------------------------------------------------------------------
; Functions which are not in the kernal jump table for VIC-20 but are for C64

CINT        := $E518
IOINIT      := $FDF9
RAMTAS      := $FD8D

All other kernal entries are the same as the C64, however, without this change, the startup code fails.

Without this change the vic20.lib builds incorrectly.
2016-05-11 19:24:16 +09:30
Oliver Schmidt
b3d84d511c Merge pull request #285 from greg-king5/asm-volatile
Add the C keyword "volatile" to the __asm__ statement grammar.
2016-04-24 21:40:46 +02:00
Greg King
2c7ccca210 Added the optional C keyword "volatile" to the __asm__ statement grammar.
It prevents the statement's Assembly code from being optimized (e.g., moved or removed).  Optimization is disabled for that statement's entire function (other functions aren't affected).
2016-04-22 11:33:52 -04:00
Oliver Schmidt
62c2177599 Merge pull request #283 from polluks/sp65
Fixed CPU definition of Lynx.
2016-04-14 11:28:25 +02:00
Polluks
b14021e9ac Fixed CPU definition of Lynx. Removed nonsense target vc20. 2016-04-12 23:58:30 +02:00
Oliver Schmidt
e809d6bf0d Merge pull request #281 from polluks/sp65
sp65: A forgotten option. Empty arguments are not silent anymore.
2016-04-10 21:13:02 +02:00
KORISNIK
7f06405bdb A forgotten option. Empty arguments are not silent anymore. 2016-04-10 02:21:36 +02:00
Oliver Schmidt
1fee359056 Merge pull request #280 from greg-king5/misaligned
Show a warning message about misaligned segments, for all badly-aligned segments.
2016-03-29 12:19:24 +02:00
Greg King
fac246c799 Moved a warning message, about misaligned segments, to a configuration function.
It used to be shown only if the segment was written into a binary file.  Now, it's shown for all badly-aligned segments.
2016-03-29 05:40:12 -04:00
Oliver Schmidt
8b685763d4 Renamed chrcvt to chrcvt65 and added it to the build.
The /Makefile presumes that all binaries are are named *65 so chrcvt had to be renamed in order to be added to the build.
2016-03-27 19:09:00 +02:00
Oliver Schmidt
d2f012e414 Updated Protovision Shop URL. 2016-03-27 18:50:54 +02:00
Oliver Schmidt
f103617512 Use .macpack to include macro package. 2016-03-27 18:29:45 +02:00
Oliver Schmidt
e92f354740 Made use of recently added Apple scrcode macro. 2016-03-27 18:27:53 +02:00
Oliver Schmidt
e2419ece0b Added scrcode macro for the Apple II.
Although the Apple II generally works with plain ASCII (i.e. in the ProDOS 8 MLI) the actual screen codes differ. This fixes #260.
2016-03-27 18:26:46 +02:00
Oliver Schmidt
c0e82f4200 Merge pull request #279 from greg-king5/atmos-reconfig
Convert the Atmos configuration to the new constructor segment model.
2016-03-27 00:36:05 +01:00
Oliver Schmidt
29d1400340 Allow _sys() to call ROM routines.
_sys() is supposed to be (primarily) intended to call ROM routines. Leveraging the "file overlay" mechanism of the cc65 build system allows to provide a Apple II specific _sys() implementation that temporarily switches in the ROM.
2016-03-25 21:57:06 +01:00
Oliver Schmidt
c9734004ee Minor fixes for recent doc change. 2016-03-25 19:03:12 +01:00
Oliver Schmidt
9aac382afb Updated documentation to reflect the current linker configs. 2016-03-25 18:48:23 +01:00
Greg King
7773fcb1e1 Converted the Atmos configuration to the new constructor segment model. 2016-03-18 11:28:56 -04:00
Oliver Schmidt
78dcb61cb8 Harmonized asm linker configs.
- All segments but CODE are optional and CODE is R/W. Both together allow to "just" write code/data without ever explicitly using a segment.

- Symbols are defined for the BSS. This allows to use/implement zerobss.

- The ZP memory area isn't artificially limited.
2016-03-17 21:51:20 +01:00
Oliver Schmidt
d5092d2d3f Consider the segment attributes 'define' and 'optional' mutually exclusive.
In normal situations it isn't too useful to define symbols for optional segments as those symbols can't be presumed to be always present.

I in fact suspect that most currently present combinations of 'define' and 'optional' aren't useful - apart form the overlay configurations of course.
2016-03-17 21:31:43 +01:00
Oliver Schmidt
e3cbc7e8b8 Moved run location of ONCE segment.
Make the same changes to the Apple II that were done with 0ee9b2e446 to the C64.

Notes:
- The startup code deliberately doesn't make use of symbols defined for the LC segment as that segment is optional.
- The <...>-asm.cfg configs move the segment BSS to an own memory area BSS although this doesn't seem necessary. However the benefit is that the size of the memeory area MAIN is identical to the number of bytes loaded from disk into RAM. To keep this an invariant for all Apple II configs allows to simplify the EXEHDR to just refer to the symbols defined for MAIN.
2016-03-17 21:07:19 +01:00
Oliver Schmidt
1d1ba3ed3b Adjusted constructors.
The constructors are _NOT_ allowed anymore to access the BSS. Rather they must use the DATA segment or the INIT 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.
2016-03-16 16:28:32 +01:00
Oliver Schmidt
3d6cbec6a1 Adjust linker config to match startup code.
Apply aaf90c1252 to the Supervision default configuration.
2016-03-16 16:00:09 +01:00
Oliver Schmidt
4270b8a96c Fixed segment properties.
The CBMx10 targets don't use the INIT segment in the startup code. So it may turn out to be not necessary at all for certain programs.

The CBMx10 targets don't need symbols for the ONCE segment. Likely their definition was a C&P error in the first place.
2016-03-15 22:55:39 +01:00
Oliver Schmidt
a2c9cb021a Moved things into ONCE.
Code and or data used only during initialization belongs into the ONCE segment.
2016-03-15 22:55:36 +01:00
Oliver Schmidt
0edd05b4bf Removed symbol definition for ONCE.
Almost all targets don't need symbols for the ONCE segment. Likely their definition was a C&P error in the first place.
2016-03-15 22:55:34 +01:00
Oliver Schmidt
46d4307bbb Removed ONCE segment.
Pure assembler programs don't have constructors. Therefore constructor code ending up in an assembler program should trigger an error.
2016-03-15 22:55:32 +01:00
Oliver Schmidt
c768de156a Fixed INIT properties.
The main chunk load header references __BSS_LOAD__ so BSS must be the first bss type segment. Subsequent changes will move ONCE to share its address with the BSS. Then it'll be necessary to load INIT from disk. Therefore we do it right now.
2016-03-13 22:18:51 +01:00
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
56a8c69b14 Use AX paradigm. 2016-03-13 21:23:45 +01:00
Oliver Schmidt
a3a22733f8 Cleaned up C64 linker configs.
The BSS segment and the ONCE segment share the same start address. So they need to be placed in two different memory areas.

So far BSS was placed in the MAIN memory area and ONCE was placed in an additional memory area. Both memory areas were written to the output file. They just "happened" to be loadable and runnable at a stretch.

Now ONCE is placed in the MAIN memory area and BSS is placed in an additional memory area. Only MAIN is written to the output file. It becomes more obvious that BSS is "just" defined to share memory with ONCE.
2016-03-13 14:32:07 +01:00
Oliver Schmidt
084453ba57 Don't presume the stack size to be a multiple of pages. 2016-03-10 10:07:09 +01:00
Oliver Schmidt
aac0b1cbbb Merge pull request #274 from bbbradsmith/doc-cc65-intern
New documentation: cc65-intern.sgml
2016-03-08 21:50:18 +01:00
Oliver Schmidt
69fbcb30fd Use AX paradigm for stack initalization. 2016-03-07 01:44:19 +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
ab1600b346 Merge pull request #269 from jbrandwood/squarebracket
New ".feature" to use brackets instead of parens for 6502 indirect addressing.
2016-03-03 09:07:21 +01:00
Brad Smith
97e6a8c569 cc65-intern update minor change notes from greg-king5 2016-03-02 21:01:46 -05:00
Brad Smith
fa5b0d88c5 Merge remote-tracking branch 'refs/remotes/cc65/master' into doc-cc65-intern 2016-03-02 21:01:04 -05:00
Brad Smith
85a58453cb cc65-intern adjusting mailing address 2016-03-02 02:03:23 -05:00
Brad Smith
18dec35312 cc65-intern sgml fixes 2016-03-02 01:58:44 -05:00
Oliver Schmidt
60958f005a Merge pull request #273 from mrdudz/emddocs
updated docs with recently added extended memory drivers
2016-02-28 21:53:46 +01:00
mrdudz
7d2969d5ac fixed copypaste errors 2016-02-28 21:39:49 +01:00
mrdudz
f328532030 updated docs with recently added extended memory drivers 2016-02-28 20:12:28 +01:00
Oliver Schmidt
3d08abcfa8 Load INITBSS segment from disk.
Conceptually the INITBSS segment is not initialized in any way. Therefore it makes sense to not load it from disk. However the INIT segment has to be loaded from disk and therefore moved to its run location above the INITBSS segment. The necessary move routine increases runtime RAM usage :-(

Therefore we now "unnecessarily" load the INITBSS segment from disk too meaning that the INIT segment is loaded at its run location. Therefore there's no need for the move routine anymore.

After all we trade disk space for (runtime) RAM space - an easy decision ;-)

Notes:

- The code allowing to re-run a program without re-load present so far could not have worked as far as I can see as it only avoided to re-run the move routine but still tried to re-run the code in the INIT segment that was clobbered by zeroing the BSS. Therefore I removed the code in question altogether. I'm personally not into this "dirty re-run" but if someone wants to add an actually working solution I won't block that.

- INITBSS is intentionally not just merged with the DATA segment as ROM-based targets can't reuse the INIT segment for the BSS and therefore have no reason to place the INIT segment above INITBSS.

- Because ROM-based targets don't copy INITBSS from the ROM (like it is done with the DATA segment) all users of INITBSS _MUST_NOT_ presume INITBSS to be initialized with zeros!
2016-02-28 19:45:36 +01:00