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Update jumptabel generation for ARM Thumb

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git-svn-id: trunk@24636 -
This commit is contained in:
Jeppe Johansen 2013-05-30 12:06:30 +00:00
parent c4263ced51
commit e5066a5f43
1 changed files with 21 additions and 0 deletions
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21
compiler/arm/narmset.pas
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@ -141,6 +141,7 @@ implementation
procedure tarmcasenode.genjumptable(hp : pcaselabel;min_,max_ : aint); procedure tarmcasenode.genjumptable(hp : pcaselabel;min_,max_ : aint);
var var
last : TConstExprInt; last : TConstExprInt;
basereg,
indexreg : tregister; indexreg : tregister;
href : treference; href : treference;
tablelabel: TAsmLabel; tablelabel: TAsmLabel;
@ -208,6 +209,26 @@ implementation
last:=min_; last:=min_;
genitem_thumb2(current_asmdata.CurrAsmList,hp); genitem_thumb2(current_asmdata.CurrAsmList,hp);
end end
else if current_settings.cputype in cpu_thumb then
begin
cg.a_op_const_reg_reg(current_asmdata.CurrAsmList,OP_SUB,OS_ADDR,min_+1,indexreg,indexreg);
current_asmdata.getaddrlabel(tablelabel);
cg.a_op_const_reg(current_asmdata.CurrAsmList,OP_SHL,OS_ADDR,2,indexreg);
basereg:=cg.getintregister(current_asmdata.CurrAsmList, OS_ADDR);
reference_reset_symbol(href,tablelabel,0,4);
cg.a_loadaddr_ref_reg(current_asmdata.CurrAsmList, href, basereg);
cg.a_op_reg_reg(current_asmdata.CurrAsmList, OP_ADD, OS_ADDr, indexreg, basereg);
current_asmdata.CurrAsmList.Concat(taicpu.op_reg(A_BX, basereg));
cg.a_label(current_asmdata.CurrAsmList,tablelabel);
{ generate jump table }
last:=min_;
genitem(current_asmdata.CurrAsmList,hp);
end
else else
begin begin
{ adjust index } { adjust index }