paweld/fpc
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/fpc/source.git synced 2025-09-05 01:50:28 +02:00
Code Issues Packages Projects Releases Wiki Activity

* handle 4-byte records in registers as well in location_force_mem on i8086

Browse Source 
git-svn-id: trunk@26002 -
This commit is contained in:
nickysn 2013-11-09 21:57:29 +00:00
parent 0302453912
commit 039979fdcc
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
compiler/i8086/hlcgcpu.pas
View File

@ -201,10 +201,12 @@ implementation
var var
r,tmpref: treference; r,tmpref: treference;
is_sixbyterecord: Boolean; is_sixbyterecord: Boolean;
is_fourbyterecord: Boolean;
is_methodptr: Boolean; is_methodptr: Boolean;
is_nestedprocptr: Boolean; is_nestedprocptr: Boolean;
begin begin
is_sixbyterecord:=(size.typ=recorddef) and (size.size=6); is_sixbyterecord:=(size.typ=recorddef) and (size.size=6);
is_fourbyterecord:=(size.typ=recorddef) and (size.size=4);
is_methodptr:=(size.typ=procvardef) is_methodptr:=(size.typ=procvardef)
and (po_methodpointer in tprocvardef(size).procoptions) and (po_methodpointer in tprocvardef(size).procoptions)
and not(po_addressonly in tprocvardef(size).procoptions); and not(po_addressonly in tprocvardef(size).procoptions);
@ -234,6 +236,25 @@ implementation
else else
cg.a_load_reg_ref(list,OS_16,OS_16,l.registerhi,tmpref); cg.a_load_reg_ref(list,OS_16,OS_16,l.registerhi,tmpref);
location_reset_ref(l,LOC_REFERENCE,l.size,0);
l.reference:=r;
end
{ 4-byte records in registers need special handling as well. A record may
be located in registerhi:register if it was converted from a procvar or
in GetNextReg(register):register if it was converted from a longint.
We can tell between the two by checking whether registerhi has been set. }
else if is_fourbyterecord and (l.loc in [LOC_REGISTER,LOC_CREGISTER]) then
begin
tg.gethltemp(list,size,size.size,tt_normal,r);
tmpref:=r;
cg.a_load_reg_ref(list,OS_16,OS_16,l.register,tmpref);
inc(tmpref.offset,2);
if l.registerhi<>tregister(0) then
cg.a_load_reg_ref(list,OS_16,OS_16,l.registerhi,tmpref)
else
cg.a_load_reg_ref(list,OS_16,OS_16,GetNextReg(l.register),tmpref);
location_reset_ref(l,LOC_REFERENCE,l.size,0); location_reset_ref(l,LOC_REFERENCE,l.size,0);
l.reference:=r; l.reference:=r;
end end