mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 10:11:27 +01:00
303 lines
10 KiB
ObjectPascal
303 lines
10 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 1998-2000 by Florian Klaempfl
|
|
|
|
This unit implements an asm for the PowerPC
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
****************************************************************************
|
|
}
|
|
unit agas;
|
|
|
|
interface
|
|
|
|
uses
|
|
cpubase,dos,globals,systems,{errors,}cobjects,aasm,strings,files,
|
|
agatt
|
|
{$ifdef GDB}
|
|
,gdb
|
|
{$endif GDB}
|
|
;
|
|
|
|
type
|
|
paicpuattasmlist=^taicpuattasmlist;
|
|
taicpuattasmlist=object(tattasmlist)
|
|
function getreferencestring(var ref : treference) : string; Virtual;
|
|
function getopstr_jmp(const o:toper) : string; Virtual;
|
|
|
|
procedure WriteInstruction (HP : Pai); virtual;
|
|
function cond2str(op: tasmop; c: tasmcond): string;
|
|
|
|
{ to construct the output for conditional branches }
|
|
function branchmode(o: tasmop): string[4];
|
|
|
|
end;
|
|
|
|
implementation
|
|
|
|
uses cpuasm;
|
|
|
|
const
|
|
att_op2str : array[tasmop] of string[14] = ('<none>',
|
|
'add','add.','addo','addo.','addc','addc.','addco','addco.',
|
|
'adde','adde.','addeo','addeo.','addi','addic','addic.','addis',
|
|
'addme','addme.','addmeo','addmeo.','addze','addze.','addzeo',
|
|
'addzeo.','and','and.','andc','andc.','andi.','andis.','b',
|
|
'ba','bl','bla','bc','bca','bcl','bcla','bcctr','bcctrl','bclr',
|
|
'bclrl','cmp','cmpi','cmpl','cmpli','cntlzw','cntlzw.','crand',
|
|
'crandc','creqv','crnand','crnor','cror','crorc','crxor','dcba',
|
|
'dcbf','dcbi','dcbst','dcbt','divw','divw.','divwo','divwo.',
|
|
'divwu','divwu.','divwuo','divwuo.','eciwx','ecowx','eieio','eqv',
|
|
'eqv.','extsb','extsb.','extsh','extsh.','fabs','fabs.','fadd',
|
|
'fadd.','fadds','fadds.','fcompo','fcmpu','fctiw','fctw.','fctwz',
|
|
'fctwz.','fdiv','fdiv.','fdivs','fdivs.','fmadd','fmadd.','fmadds',
|
|
'fmadds.','fmr','fmsub','fmsub.','fmsubs','fmsubs.','fmul','fmul.',
|
|
'fmuls','fmuls.','fnabs','fnabs.','fneg','fneg.','fnmadd',
|
|
'fnmadd.','fnmadds','fnmadds.','fnmsub','fnmsub.','fnmsubs',
|
|
'fnmsubs.','fres','fres.','frsp','frsp.','frsqrte','frsqrte.',
|
|
'fsel','fsel.','fsqrt','fsqrt.','fsqrts','fsqrts.','fsub','fsub.',
|
|
'fsubs','fsubs.','icbi','isync','lbz','lbzu','lbzux','lbzx',
|
|
'lfd','lfdu','lfdux','lfdx','lfs','lfsu','lfsux','lfsx','lha',
|
|
'lhau','lhaux','lhax','hbrx','lhz','lhzu','lhzux','lhzx','lmw',
|
|
'lswi','lswx','lwarx','lwbrx','lwz','lwzu','lwzux','lwzx','mcrf',
|
|
'mcrfs','lcrxe','mfcr','mffs','maffs.','mfmsr','mfspr','mfsr',
|
|
'mfsrin','mftb','mtfcrf','mtfd0','mtfsb1','mtfsf','mtfsf.',
|
|
'mtfsfi','mtfsfi.','mtmsr','mtspr','mtsr','mtsrin','mulhw',
|
|
'mulhw.','mulhwu','mulhwu.','mulli','mullh','mullw.','mullwo',
|
|
'mullwo.','nand','nand.','neg','neg.','nego','nego.','nor','nor.',
|
|
'or','or.','orc','orc.','ori','oris', 'rfi', 'rlwimi', 'rlwimi.',
|
|
'rlwinm', 'tlwinm.','rlwnm','sc','slw', 'slw.', 'sraw', 'sraw.',
|
|
'srawi', 'srawi.','srw', 'srw.', 'stb', 'stbu', 'stbux','stbx','stfd',
|
|
'stfdu', 'stfdux', 'stfdx', 'stfiwx', 'stfs', 'stfsu', 'stfsux', 'stfsx',
|
|
'sth', 'sthbrx', 'sthu', 'sthux', 'sthx', 'stmw', 'stswi', 'stswx', 'stw',
|
|
'stwbrx', 'stwx.', 'stwu', 'stwux', 'stwx', 'subf', 'subf.', 'subfo',
|
|
'subfo.', 'subfc', 'subc.', 'subfco', 'subfco.', 'subfe', 'subfe.',
|
|
'subfeo', 'subfeo.', 'subfic', 'subfme', 'subfme.', 'subfmeo', 'subfmeo.',
|
|
'subfze', 'subfze.', 'subfzeo', 'subfzeo.', 'sync', 'tlbia', 'tlbie',
|
|
'tlbsync', 'tw', 'twi', 'xor', 'xor.', 'xori', 'xoris',
|
|
{ some simplified mnemonics }
|
|
'subi', 'subis', 'subic', 'subic.', 'sub', 'sub.', 'subo', 'subo.',
|
|
'subc', 'subc.', 'subco', '.subco.', 'cmpwi', 'cmpw', 'cmplwi', 'cmplw',
|
|
'extlwi', 'extlwi.', 'extrwi', 'extrwi.', 'inslwi', 'inslwi.', 'insrwi',
|
|
'insrwi.', 'rotlwi', 'rotlwi.', 'rotlw', 'rotlw.', 'slwi', 'slwi.',
|
|
'srwi', 'srwi.', 'clrlwi', 'clrlwi.', 'clrrwi', 'clrrwi.', 'clrslwi',
|
|
'clrslwi.', 'blr', 'bctr', 'blrl', 'bctrl', 'crset', 'crclr', 'crmove',
|
|
'crnot', 'mt', 'mf','nop', 'li', 'lis', 'la', 'mr','not', 'mtcr');
|
|
|
|
function taicpuattasmlist.getreferencestring(var ref : treference) : string;
|
|
var
|
|
s : string;
|
|
begin
|
|
if ref.is_immediate then
|
|
begin
|
|
{$ifndef testing}
|
|
internalerror(1000101);
|
|
exit;
|
|
{$else testing}
|
|
writeln('internalerror 1000101');
|
|
halt(1);
|
|
{$endif testing}
|
|
end
|
|
else
|
|
begin
|
|
with ref do
|
|
begin
|
|
inc(offset,offsetfixup);
|
|
if (offset < -32768) or (offset > 32767) then
|
|
{$ifndef testing}
|
|
internalerror(19991);
|
|
{$else testing}
|
|
begin
|
|
writeln('internalerror 19991');
|
|
halt(1);
|
|
end;
|
|
{$endif testing}
|
|
s:='';
|
|
if assigned(symbol) then
|
|
s:=s+symbol^.name + symaddr2str[symaddr];
|
|
if offset<0 then
|
|
s:=s+tostr(offset)
|
|
else
|
|
if (offset>0) then
|
|
begin
|
|
if assigned(symbol) then
|
|
s:=s+'+'+tostr(offset)
|
|
else
|
|
s:=s+tostr(offset);
|
|
end;
|
|
if (index=R_NO) and (base<>R_NO) then
|
|
s:=s+'('+att_reg2str[base]+')'
|
|
else if (index<>R_NO) and (base<>R_NO) and (offset = 0) then
|
|
s:=s+att_reg2str[base]+','+att_reg2str[index]
|
|
else if ((index<>R_NO) or (base<>R_NO)) then
|
|
{$ifndef testing}
|
|
internalerror(19992);
|
|
{$else testing}
|
|
begin
|
|
writeln('internalerror 19992');
|
|
halt(1);
|
|
end;
|
|
{$endif testing}
|
|
end;
|
|
end;
|
|
getreferencestring:=s;
|
|
end;
|
|
|
|
function taicpuattasmlist.getopstr_jmp(const o:toper) : string;
|
|
var
|
|
hs : string;
|
|
begin
|
|
case o.typ of
|
|
top_reg :
|
|
getopstr_jmp:=att_reg2str[o.reg];
|
|
{ no top_ref jumping for powerpc }
|
|
top_const :
|
|
getopstr_jmp:=tostr(o.val);
|
|
top_symbol :
|
|
begin
|
|
hs:=o.sym^.name;
|
|
if o.symofs>0 then
|
|
hs:=hs+'+'+tostr(o.symofs)
|
|
else
|
|
if o.symofs<0 then
|
|
hs:=hs+tostr(o.symofs);
|
|
getopstr_jmp:=hs;
|
|
end;
|
|
else
|
|
{$ifndef testing}
|
|
internalerror(10001);
|
|
{$else testing}
|
|
begin
|
|
writeln('internalerror 10001');
|
|
halt(1);
|
|
end;
|
|
{$endif testing}
|
|
end;
|
|
end;
|
|
|
|
|
|
Procedure taicpuattasmlist.WriteInstruction (HP : Pai);
|
|
var op: TAsmOp;
|
|
s: string;
|
|
i: byte;
|
|
sep: string[3];
|
|
begin
|
|
op:=paicpu(hp)^.opcode;
|
|
if is_calljmp(op) then
|
|
{ direct BO/BI in op[0] and op[1] not supported, put them in condition! }
|
|
s:=s+cond2str(op,paicpu(hp)^.condition)+
|
|
getopstr_jmp(paicpu(hp)^.oper[0])
|
|
else
|
|
{ process operands }
|
|
begin
|
|
s:=#9+att_op2str[op];
|
|
if paicpu(hp)^.ops<>0 then
|
|
begin
|
|
if not is_calljmp(op) then
|
|
sep := ','
|
|
else sep := '#9';
|
|
for i:=0 to paicpu(hp)^.ops-1 do
|
|
begin
|
|
s:=s+sep+getopstr(paicpu(hp)^.oper[i])
|
|
sep:=',';
|
|
end;
|
|
end;
|
|
end;
|
|
AsmWriteLn(s);
|
|
end;
|
|
|
|
function taicpuattasmlist.cond2str(op: tasmop; c: tasmcond): string;
|
|
{ note: no checking is performed whether the given combination of }
|
|
{ conditions is valid }
|
|
var tempstr: sintrg;
|
|
begin
|
|
tempstr := '#9';
|
|
case c.simple of
|
|
false: cond2str := tempstr+att_op2str[op]+'#9'+tostr(c.bo)+','+
|
|
tostr(c.bi);
|
|
true:
|
|
if (op >= A_B) and (op <= A_BCLRL) then
|
|
case c.cond of
|
|
{ unconditional branch }
|
|
CF_NONE: condstr := tempstr+op2str(op);
|
|
{ bdnzt etc }
|
|
else
|
|
begin
|
|
tempstr := tempstr+'b'+asmcondflag2str[c.cond]+
|
|
branchmode(op)+'#9';
|
|
case op of
|
|
CF_LT..CF_NU:
|
|
cond2str := tempstr+att_reg2str[c.cr];
|
|
CF_T..CF_DZF:
|
|
cond2str := tempstr+tostr(c.crbit);
|
|
end;
|
|
end;
|
|
end
|
|
{ we have a trap instruction }
|
|
{ not yet implementer !!!!!!!!!!!!!!!!!!!!! }
|
|
{ else
|
|
begin
|
|
case tempstr := 'tw';}
|
|
end;
|
|
end;
|
|
|
|
function taicpuattasmlist.branchmode(o: tasmop): string[4];
|
|
var tempstr: string[4];
|
|
begin
|
|
tempstr := '';
|
|
case o of
|
|
A_BCCTR,A_BCCTRL: tempstr := 'ctr'
|
|
A_BCLR,A_BCLRL: tempstr := 'lr'
|
|
case o of
|
|
A_BL,A_BLA,A_BCL,A_BCLA,A_BCCTRL,A_BCLRL: tempstr := tempstr+'l';
|
|
end;
|
|
case o of
|
|
A_BA,A_BLA,A_BCA,A_BCLA: tempstr:=tempstr+'a';
|
|
end;
|
|
branchmode := tempstr;
|
|
end;
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.1 2001-08-26 13:31:04 florian
|
|
* some cg reorganisation
|
|
* some PPC updates
|
|
|
|
Revision 1.1 2000/07/13 06:30:12 michael
|
|
+ Initial import
|
|
|
|
Revision 1.6 2000/05/01 11:03:32 jonas
|
|
* some fixes, does not yet compile
|
|
|
|
Revision 1.5 2000/03/26 16:37:36 jonas
|
|
+ use cpubase unit
|
|
- removed use of alpha unit
|
|
|
|
Revision 1.4 2000/01/07 01:14:57 peter
|
|
* updated copyright to 2000
|
|
|
|
Revision 1.3 1999/09/03 13:15:47 jonas
|
|
+ implemented most necessary methods
|
|
|
|
Revision 1.2 1999/08/25 12:00:22 jonas
|
|
* changed pai386, paippc and paiapha (same for tai*) to paicpu (taicpu)
|
|
|
|
Revision 1.1 1999/08/03 23:37:52 jonas
|
|
+ initial implementation for PowerPC based on the Alpha stuff
|
|
|
|
}
|