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* fixed instruction matching when a size flag is specified for all

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operands
This commit is contained in:
peter 2000-05-23 20:34:35 +00:00
parent ed2dab7b31
commit 00cf634883
1 changed files with 42 additions and 12 deletions
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54
compiler/cpuasm.pas
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@ -818,7 +818,8 @@ function taicpu.Matches(p:PInsEntry):longint;
* required to have unspecified size in the instruction too...)
}
var
i,siz,oprs : longint;
i,j,asize,oprs : longint;
siz : array[0..2] of longint;
begin
Matches:=100;
@ -859,14 +860,36 @@ begin
{ as default an untyped size can get all the sizes, this is different
from nasm, but else we need to do a lot checking which opcodes want
size or not with the automatic size generation }
siz:=$ffffffff;
asize:=$ffffffff;
if (p^.flags and IF_SB)<>0 then
siz:=OT_BITS8
asize:=OT_BITS8
else if (p^.flags and IF_SW)<>0 then
siz:=OT_BITS16
asize:=OT_BITS16
else if (p^.flags and IF_SD)<>0 then
siz:=OT_BITS32
else if (p^.flags and (IF_SM or IF_SM2))<>0 then
asize:=OT_BITS32;
if (p^.flags and IF_ARMASK)<>0 then
begin
siz[0]:=0;
siz[1]:=0;
siz[2]:=0;
if (p^.flags and IF_AR0)<>0 then
siz[0]:=asize
else if (p^.flags and IF_AR1)<>0 then
siz[1]:=asize
else if (p^.flags and IF_AR2)<>0 then
siz[2]:=asize;
end
else
begin
{ siz[0]:=asize;
siz[1]:=asize;
siz[2]:=asize; }
{ we can leave because the size for all operands is forced to be
the same }
exit;
end;
if (p^.flags and (IF_SM or IF_SM2))<>0 then
begin
if (p^.flags and IF_SM2)<>0 then
oprs:=2
@ -875,19 +898,22 @@ begin
for i:=0 to oprs-1 do
if ((p^.optypes[i] and OT_SIZE_MASK) <> 0) then
begin
siz:=p^.optypes[i] and OT_SIZE_MASK;
for j:=0 to oprs-1 do
siz[j]:=p^.optypes[i] and OT_SIZE_MASK;
break;
end;
end;
end
else
oprs:=2;
{ Check operand sizes }
for i:=0to p^.ops-1 do
begin
if ((p^.optypes[i] and OT_SIZE_MASK)=0) and
((oper[i].ot and OT_SIZE_MASK and (not siz))<>0) and
((oper[i].ot and OT_SIZE_MASK and (not siz[i]))<>0) and
{ Immediates can always include smaller size }
((oper[i].ot and OT_IMMEDIATE)=0) and
(((p^.optypes[i] and OT_SIZE_MASK) or siz)<(oper[i].ot and OT_SIZE_MASK)) then
(((p^.optypes[i] and OT_SIZE_MASK) or siz[i])<(oper[i].ot and OT_SIZE_MASK)) then
Matches:=2;
end;
end;
@ -1647,7 +1673,11 @@ end;
end.
{
$Log$
Revision 1.14 2000-05-12 21:26:22 pierre
Revision 1.15 2000-05-23 20:34:35 peter
* fixed instruction matching when a size flag is specified for all
operands
Revision 1.14 2000/05/12 21:26:22 pierre
* fix the FDIV FDIVR FSUB FSUBR and popping equivalent
simply by swapping from reverse to normal and vice-versa
when passing from one syntax to the other !
@ -1699,4 +1729,4 @@ end.
Revision 1.17 1999/08/01 23:55:53 michael
* Moved taitempalloc
}
}