* records are passed by value
* records with size of 1,2 or 4 are returned in registers
* parameters with size<4 are justified on the stack according to big-endian target
Now everything except floating-point parameters is compatible with C code compiled with "-malign-int -mrtd".
Compatibility with "-mno-align-int" is achievable by changing target_info.maxCrecordalign to 2, but doings so causes a lot more troubles because RTL (incorrectly) assumes that records declared with {$PACKRECORDS C} are aligned to pointer size.
+ Reuse parameter locations. Since everything is passed on stack, it reduces code size quite a bit.
- tm68kparamanager.getintparaloc removed, generic implementation has been tested and works as expected.
git-svn-id: trunk@28083 -
- RTL: removed MIPS,SPARC and m68k-specific implementations of Abs(longint), and marked the generic one as required for bootstrapping purposes only.
git-svn-id: trunk@27857 -
* completely disable the DBRA part for CPUs without DBRA
* replace CMP/BNE with BPL which uses the flags of the SUB instruction
Additional fixes for the other two (still disabled) DBRA alternatives:
* use BPL instead of BMI (which is wrong)
git-svn-id: trunk@25587 -
* fillchar & fillword: check whether the count is 0 before filling anything
This fixes cases like "Writeln('')" which is used inside InternalExit if an unhandled exception happened.
git-svn-id: trunk@23431 -
data registers stored are 1 to 7, not 0 to 7
* rtl/m68k/setjump.inc:
don't use "S" or "value" to reference the parameters as the code generator does not use "sp" instead of "fp" in case of "nostackframe"
restore a0 at the end of setjmp
git-svn-id: trunk@23240 -
completely disable the "fast loop" code for Coldfire instead of "hackfixing" it; with this StdIO starts to work (though one byte is missing at the end...)
git-svn-id: trunk@22883 -
add a check for "count = 0" which happens e.g. inside of System.Assign if called with '' as filename (which is the case inside OpenStdIO)
git-svn-id: trunk@22841 -
* enable the 6 parameter syscall variant (still everything dummied out though)
* add termios constants
* don't change signal handlers for now
* disable assembly set routines as set handling was changed
git-svn-id: trunk@22743 -
get_caller_frame, get_caller_addr and dump_stack
with default NIL value to systemh.inc.
+ Added new get_addr function.
system.inc: Use get_addr and get_frame to call
HandleErrorAddrFrame instead of HandleErrorFrame
in several error functions.
Modify dump_stack to use frame and addr parameters.
Provide a dummy get_addr function returning nil.
i386/i386.inc, x86_64./x86_64.inc: Provide real
implementation of get_addr function.
git-svn-id: trunk@21697 -
