Greg King [Wed, 10 Jul 2013 06:37:09 +0000 (02:37 -0400)]
Fixed ld65's precalculation of memory-area sizes.
Before this fix, BSS-type and ZP-type segments never were counted. Now, they are counted if their memory areas are filled. (It must be done because their places in the output file are filled.)
The fix allows us to build programs for the CBM510 and CBM610 platforms. We won't see an "Internal error" diagnostic message about a bad file-offset.
Don't save and restore the zero page locations used.
Saves 19 bytes code (in the exe file) and reduces memory footprint
of the program by 45 bytes (code & bss).
Add indication on the screen of occurring IRQs and NMIs (only for debug version).
NMI handler: set I status bit to original value before interrupt before chaining
to ROM NMI handler.
Oliver Schmidt [Fri, 7 Jun 2013 21:13:46 +0000 (23:13 +0200)]
Added support for 'prefix'.
If the variable 'prefix' is defined then the builtin search paths are set to
$(prefix)/lib/cc65/... allowing to build binaries intended for installation.
Note that the library build still works with these binaries as it generally
overrides the builtin search paths by setting the CC65_HOME env var.
Oliver Schmidt [Tue, 4 Jun 2013 21:39:00 +0000 (23:39 +0200)]
Use unique variables for cc65 toolchain.
Originally I used the usual variables (like $(CC) and $(CFLAGS) ) but after
all this doesn't make sense as any predefined values and/or user defined
settings can only be wrong.
Oliver Schmidt [Fri, 31 May 2013 22:11:31 +0000 (00:11 +0200)]
Added library reference em_libref to EMD interface.
Occasionally dynamically drivers suffer from not being to refer to
content in the C library. Therefore I added a mechanism to allow
a C library for a certian target to define a symbol that will be
handed over to dynamic drivers for that target. Then the drivers
can use their refernce to that symbol to access content in the C
library.
Oliver Schmidt [Fri, 31 May 2013 19:30:14 +0000 (21:30 +0200)]
Explicitly set search paths for libraries build.
The libraries build is prepared to work with binaries not part of the current
working tree. But in this case the default search path surely points to some
other working tree. Even the binaries in this working tree might have been
compiled with non-standard builtin search paths.
Anyway when building the libraries we want always to use the headers from
the current working tree. Therefore we want to set them explicitly. Instead
of setting all in all five paths on the command lines of ca65, cc65 and ld65 I
opted to just set the single environment variable.
Add two load chunks:
- First chunk checks system (if it's XL and memory is ok).
- Second chunk contains the contents for the shadow memory beneath the
ROM and copies the contents to their destination address.
It also moves the screen memory to low memory in front of the program.
Oliver Schmidt [Tue, 28 May 2013 20:07:04 +0000 (22:07 +0200)]
Brought back mouse driver source code.
The mouse driver source code in question was removed two years
ago with commit 6cbbe66c87fc19c322a0dd72a5c8ef094ea90c90.
It seems however desirable to have it around visible in the source
code tree for reference purposes.
Oliver Schmidt [Tue, 28 May 2013 19:56:37 +0000 (21:56 +0200)]
Introduced target 'atarixl'.
The target 'atarixl' is to be used for Atari XL (and better) machines.
It will disable the OS ROM and enable the Shadow RAM available on
those machine.
Note: This commit is only the inital step towards for this goal that just
replicates the target 'atari' as a starting point!
Oliver Schmidt [Tue, 28 May 2013 19:20:37 +0000 (21:20 +0200)]
Renamed Atari drivers.
As a preparation for the introduction of the 'atarixl' target it is
necessary that all drivers have a base name...
- no longer than 7 characters
- with a common prefix
projects / cc65 / log