1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
|
{
Copyright (c) 1999-2002 by Mazen Neifer
Contains the assembler object for the SPARC
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 aasmcpu;
{$i fpcdefs.inc}
interface
uses
cclasses,
globtype,globals,verbose,
aasmbase,aasmtai,aasmdata,aasmsym,
cgbase,cgutils,cpubase,cpuinfo;
const
{ "mov reg,reg" source operand number }
O_MOV_SOURCE = 0;
{ "mov reg,reg" source operand number }
O_MOV_DEST = 1;
type
taicpu = class(tai_cpu_abstract_sym)
delayslot_annulled : boolean; { conditinal opcode with ,a }
constructor op_none(op : tasmop);
constructor op_reg(op : tasmop;_op1 : tregister);
constructor op_const(op : tasmop;_op1 : aint);
constructor op_ref(op : tasmop;const _op1 : treference);
constructor op_reg_reg(op : tasmop;_op1,_op2 : tregister);
constructor op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
constructor op_reg_const(op:tasmop; _op1: tregister; _op2: aint);
constructor op_const_reg(op:tasmop; _op1: aint; _op2: tregister);
constructor op_ref_reg(op : tasmop;const _op1 : treference;_op2 : tregister);
constructor op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
constructor op_reg_ref_reg(op:tasmop;_op1:TRegister;_op2:TReference;_op3:tregister);
constructor op_reg_const_reg(op:tasmop;_op1:TRegister;_op2:aint;_op3:tregister);
{ this is for Jmp instructions }
constructor op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
constructor op_sym(op : tasmop;_op1 : tasmsymbol);
constructor op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:aint);
constructor op_reg_sym(op : tasmop;_op1 : Tregister;_op2 : tasmsymbol);
procedure loadbool(opidx:longint;_b:boolean);
{ register allocation }
function is_same_reg_move(regtype: Tregistertype):boolean; override;
{ register spilling code }
function spilling_get_operation_type(opnr: longint): topertype;override;
end;
tai_align = class(tai_align_abstract)
{ nothing to add }
end;
procedure InitAsm;
procedure DoneAsm;
function spilling_create_load(const ref:treference;r:tregister):Taicpu;
function spilling_create_store(r:tregister; const ref:treference):Taicpu;
implementation
{*****************************************************************************
taicpu Constructors
*****************************************************************************}
procedure taicpu.loadbool(opidx:longint;_b:boolean);
begin
if opidx>=ops then
ops:=opidx+1;
with oper[opidx]^ do
begin
if typ=top_ref then
dispose(ref);
b:=_b;
typ:=top_bool;
end;
end;
constructor taicpu.op_none(op : tasmop);
begin
inherited create(op);
end;
constructor taicpu.op_reg(op : tasmop;_op1 : tregister);
begin
inherited create(op);
ops:=1;
loadreg(0,_op1);
end;
constructor taicpu.op_ref(op : tasmop;const _op1 : treference);
begin
inherited create(op);
ops:=1;
loadref(0,_op1);
end;
constructor taicpu.op_const(op : tasmop;_op1 : aint);
begin
inherited create(op);
ops:=1;
loadconst(0,_op1);
end;
constructor taicpu.op_reg_reg(op : tasmop;_op1,_op2 : tregister);
begin
inherited create(op);
ops:=2;
loadreg(0,_op1);
loadreg(1,_op2);
end;
constructor taicpu.op_reg_const(op:tasmop; _op1: tregister; _op2: aint);
begin
inherited create(op);
ops:=2;
loadreg(0,_op1);
loadconst(1,_op2);
end;
constructor taicpu.op_const_reg(op:tasmop; _op1: aint; _op2: tregister);
begin
inherited create(op);
ops:=2;
loadconst(0,_op1);
loadreg(1,_op2);
end;
constructor taicpu.op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
begin
inherited create(op);
ops:=2;
loadreg(0,_op1);
loadref(1,_op2);
end;
constructor taicpu.op_ref_reg(op : tasmop;const _op1 : treference;_op2 : tregister);
begin
inherited create(op);
ops:=2;
loadref(0,_op1);
loadreg(1,_op2);
end;
constructor taicpu.op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
begin
inherited create(op);
ops:=3;
loadreg(0,_op1);
loadreg(1,_op2);
loadreg(2,_op3);
end;
constructor taicpu.op_reg_ref_reg(op:tasmop;_op1:TRegister;_op2:TReference;_op3:tregister);
begin
inherited create(op);
{ only allowed to load the address }
if not(_op2.refaddr in [addr_low,addr_high]) then
internalerror(200305311);
ops:=3;
loadreg(0,_op1);
loadref(1,_op2);
loadreg(2,_op3);
end;
constructor taicpu.op_reg_const_reg(op:tasmop;_op1:TRegister;_op2:aint;_op3:tregister);
begin
inherited create(op);
ops:=3;
loadreg(0,_op1);
loadconst(1,_op2);
loadreg(2,_op3);
end;
constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
begin
inherited create(op);
is_jmp:=op in [A_BA,A_Bxx];
condition:=cond;
ops:=1;
loadsymbol(0,_op1,0);
end;
constructor taicpu.op_sym(op : tasmop;_op1 : tasmsymbol);
begin
inherited create(op);
is_jmp:=op in [A_BA,A_Bxx];
ops:=1;
loadsymbol(0,_op1,0);
end;
constructor taicpu.op_reg_sym(op : tasmop;_op1:Tregister;_op2 : tasmsymbol);
begin
inherited create(op);
is_jmp:=op in [A_BA,A_Bxx];
ops:=2;
loadreg(0,_op1);
loadsymbol(1,_op2,0);
end;
constructor taicpu.op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:aint);
begin
inherited create(op);
ops:=1;
loadsymbol(0,_op1,_op1ofs);
end;
function taicpu.is_same_reg_move(regtype: Tregistertype):boolean;
begin
result:=(
((opcode=A_MOV) and (regtype = R_INTREGISTER)) or
((regtype = R_FPUREGISTER) and (opcode in [A_FMOVS,A_FMOVD]))
) and
(ops=2) and
(oper[0]^.typ=top_reg) and
(oper[1]^.typ=top_reg) and
(oper[0]^.reg=oper[1]^.reg);
end;
function taicpu.spilling_get_operation_type(opnr: longint): topertype;
begin
result := operand_read;
case opcode of
A_FCMPs,A_FCMPd,A_FCMPq :
;
else
begin
if opnr=ops-1 then
result := operand_write;
end;
end;
end;
function spilling_create_load(const ref:treference;r:tregister):Taicpu;
begin
case getregtype(r) of
R_INTREGISTER :
result:=taicpu.op_ref_reg(A_LD_R,ref,r);
R_FPUREGISTER :
begin
case getsubreg(r) of
R_SUBFS :
result:=taicpu.op_ref_reg(A_LDF,ref,r);
R_SUBFD :
result:=taicpu.op_ref_reg(A_LDD,ref,r);
else
internalerror(200401042);
end;
end
else
internalerror(2004010404);
end;
end;
function spilling_create_store(r:tregister; const ref:treference):Taicpu;
begin
case getregtype(r) of
R_INTREGISTER :
result:=taicpu.op_reg_ref(A_ST_R,r,ref);
R_FPUREGISTER :
begin
case getsubreg(r) of
R_SUBFS :
result:=taicpu.op_reg_ref(A_STF,r,ref);
R_SUBFD :
result:=taicpu.op_reg_ref(A_STD,r,ref);
else
internalerror(2004010417);
end;
end
else
internalerror(2004010406);
end;
end;
procedure InitAsm;
begin
end;
procedure DoneAsm;
begin
end;
begin
cai_cpu:=taicpu;
cai_align:=tai_align;
end.
|
