aboutsummaryrefslogtreecommitdiffstats
path: root/lcc/src/mips.md
diff options
context:
space:
mode:
authortma <tma@edf5b092-35ff-0310-97b2-ce42778d08ea>2005-10-04 15:18:22 +0000
committertma <tma@edf5b092-35ff-0310-97b2-ce42778d08ea>2005-10-04 15:18:22 +0000
commit1c7864f6d4380797b07c7149111066b61f69f689 (patch)
tree59057c26f97fdf846b0193e852eeea7e707a9e20 /lcc/src/mips.md
parent91db83f0cc7c564ff6c853eeb4e790732dae81cd (diff)
downloadioquake3-aero-1c7864f6d4380797b07c7149111066b61f69f689.tar.gz
ioquake3-aero-1c7864f6d4380797b07c7149111066b61f69f689.zip
* Moved lcc and q3asm into code/tools
git-svn-id: svn://svn.icculus.org/quake3/trunk@134 edf5b092-35ff-0310-97b2-ce42778d08ea
Diffstat (limited to 'lcc/src/mips.md')
-rw-r--r--lcc/src/mips.md1120
1 files changed, 0 insertions, 1120 deletions
diff --git a/lcc/src/mips.md b/lcc/src/mips.md
deleted file mode 100644
index 41f6d8c..0000000
--- a/lcc/src/mips.md
+++ /dev/null
@@ -1,1120 +0,0 @@
-%{
-#define INTTMP 0x0100ff00
-#define INTVAR 0x40ff0000
-#define FLTTMP 0x000f0ff0
-#define FLTVAR 0xfff00000
-
-#define INTRET 0x00000004
-#define FLTRET 0x00000003
-
-#define readsreg(p) \
- (generic((p)->op)==INDIR && (p)->kids[0]->op==VREG+P)
-#define setsrc(d) ((d) && (d)->x.regnode && \
- (d)->x.regnode->set == src->x.regnode->set && \
- (d)->x.regnode->mask&src->x.regnode->mask)
-
-#define relink(a, b) ((b)->x.prev = (a), (a)->x.next = (b))
-
-#include "c.h"
-#define NODEPTR_TYPE Node
-#define OP_LABEL(p) ((p)->op)
-#define LEFT_CHILD(p) ((p)->kids[0])
-#define RIGHT_CHILD(p) ((p)->kids[1])
-#define STATE_LABEL(p) ((p)->x.state)
-static void address(Symbol, Symbol, long);
-static void blkfetch(int, int, int, int);
-static void blkloop(int, int, int, int, int, int[]);
-static void blkstore(int, int, int, int);
-static void defaddress(Symbol);
-static void defconst(int, int, Value);
-static void defstring(int, char *);
-static void defsymbol(Symbol);
-static void doarg(Node);
-static void emit2(Node);
-static void export(Symbol);
-static void clobber(Node);
-static void function(Symbol, Symbol [], Symbol [], int);
-static void global(Symbol);
-static void import(Symbol);
-static void local(Symbol);
-static void progbeg(int, char **);
-static void progend(void);
-static void segment(int);
-static void space(int);
-static void target(Node);
-static int bitcount (unsigned);
-static Symbol argreg (int, int, int, int, int);
-
-static Symbol ireg[32], freg2[32], d6;
-static Symbol iregw, freg2w;
-static int tmpregs[] = {3, 9, 10};
-static Symbol blkreg;
-
-static int gnum = 8;
-static int pic;
-
-static int cseg;
-%}
-%start stmt
-%term CNSTF4=4113
-%term CNSTF8=8209
-%term CNSTF16=16401
-%term CNSTI1=1045
-%term CNSTI2=2069
-%term CNSTI4=4117
-%term CNSTI8=8213
-%term CNSTP4=4119
-%term CNSTP8=8215
-%term CNSTU1=1046
-%term CNSTU2=2070
-%term CNSTU4=4118
-%term CNSTU8=8214
-
-%term ARGB=41
-%term ARGF4=4129
-%term ARGF8=8225
-%term ARGF16=16417
-%term ARGI4=4133
-%term ARGI8=8229
-%term ARGP4=4135
-%term ARGP8=8231
-%term ARGU4=4134
-%term ARGU8=8230
-
-%term ASGNB=57
-%term ASGNF4=4145
-%term ASGNF8=8241
-%term ASGNF16=16433
-%term ASGNI1=1077
-%term ASGNI2=2101
-%term ASGNI4=4149
-%term ASGNI8=8245
-%term ASGNP4=4151
-%term ASGNP8=8247
-%term ASGNU1=1078
-%term ASGNU2=2102
-%term ASGNU4=4150
-%term ASGNU8=8246
-
-%term INDIRB=73
-%term INDIRF4=4161
-%term INDIRF8=8257
-%term INDIRF16=16449
-%term INDIRI1=1093
-%term INDIRI2=2117
-%term INDIRI4=4165
-%term INDIRI8=8261
-%term INDIRP4=4167
-%term INDIRP8=8263
-%term INDIRU1=1094
-%term INDIRU2=2118
-%term INDIRU4=4166
-%term INDIRU8=8262
-
-%term CVFF4=4209
-%term CVFF8=8305
-%term CVFF16=16497
-%term CVFI4=4213
-%term CVFI8=8309
-
-%term CVIF4=4225
-%term CVIF8=8321
-%term CVIF16=16513
-%term CVII1=1157
-%term CVII2=2181
-%term CVII4=4229
-%term CVII8=8325
-%term CVIU1=1158
-%term CVIU2=2182
-%term CVIU4=4230
-%term CVIU8=8326
-
-%term CVPP4=4247
-%term CVPP8=8343
-%term CVPP16=16535
-%term CVPU4=4246
-%term CVPU8=8342
-
-%term CVUI1=1205
-%term CVUI2=2229
-%term CVUI4=4277
-%term CVUI8=8373
-%term CVUP4=4279
-%term CVUP8=8375
-%term CVUP16=16567
-%term CVUU1=1206
-%term CVUU2=2230
-%term CVUU4=4278
-%term CVUU8=8374
-
-%term NEGF4=4289
-%term NEGF8=8385
-%term NEGF16=16577
-%term NEGI4=4293
-%term NEGI8=8389
-
-%term CALLB=217
-%term CALLF4=4305
-%term CALLF8=8401
-%term CALLF16=16593
-%term CALLI4=4309
-%term CALLI8=8405
-%term CALLP4=4311
-%term CALLP8=8407
-%term CALLU4=4310
-%term CALLU8=8406
-%term CALLV=216
-
-%term RETF4=4337
-%term RETF8=8433
-%term RETF16=16625
-%term RETI4=4341
-%term RETI8=8437
-%term RETP4=4343
-%term RETP8=8439
-%term RETU4=4342
-%term RETU8=8438
-%term RETV=248
-
-%term ADDRGP4=4359
-%term ADDRGP8=8455
-
-%term ADDRFP4=4375
-%term ADDRFP8=8471
-
-%term ADDRLP4=4391
-%term ADDRLP8=8487
-
-%term ADDF4=4401
-%term ADDF8=8497
-%term ADDF16=16689
-%term ADDI4=4405
-%term ADDI8=8501
-%term ADDP4=4407
-%term ADDP8=8503
-%term ADDU4=4406
-%term ADDU8=8502
-
-%term SUBF4=4417
-%term SUBF8=8513
-%term SUBF16=16705
-%term SUBI4=4421
-%term SUBI8=8517
-%term SUBP4=4423
-%term SUBP8=8519
-%term SUBU4=4422
-%term SUBU8=8518
-
-%term LSHI4=4437
-%term LSHI8=8533
-%term LSHU4=4438
-%term LSHU8=8534
-
-%term MODI4=4453
-%term MODI8=8549
-%term MODU4=4454
-%term MODU8=8550
-
-%term RSHI4=4469
-%term RSHI8=8565
-%term RSHU4=4470
-%term RSHU8=8566
-
-%term BANDI4=4485
-%term BANDI8=8581
-%term BANDU4=4486
-%term BANDU8=8582
-
-%term BCOMI4=4501
-%term BCOMI8=8597
-%term BCOMU4=4502
-%term BCOMU8=8598
-
-%term BORI4=4517
-%term BORI8=8613
-%term BORU4=4518
-%term BORU8=8614
-
-%term BXORI4=4533
-%term BXORI8=8629
-%term BXORU4=4534
-%term BXORU8=8630
-
-%term DIVF4=4545
-%term DIVF8=8641
-%term DIVF16=16833
-%term DIVI4=4549
-%term DIVI8=8645
-%term DIVU4=4550
-%term DIVU8=8646
-
-%term MULF4=4561
-%term MULF8=8657
-%term MULF16=16849
-%term MULI4=4565
-%term MULI8=8661
-%term MULU4=4566
-%term MULU8=8662
-
-%term EQF4=4577
-%term EQF8=8673
-%term EQF16=16865
-%term EQI4=4581
-%term EQI8=8677
-%term EQU4=4582
-%term EQU8=8678
-
-%term GEF4=4593
-%term GEF8=8689
-%term GEI4=4597
-%term GEI8=8693
-%term GEI16=16885
-%term GEU4=4598
-%term GEU8=8694
-
-%term GTF4=4609
-%term GTF8=8705
-%term GTF16=16897
-%term GTI4=4613
-%term GTI8=8709
-%term GTU4=4614
-%term GTU8=8710
-
-%term LEF4=4625
-%term LEF8=8721
-%term LEF16=16913
-%term LEI4=4629
-%term LEI8=8725
-%term LEU4=4630
-%term LEU8=8726
-
-%term LTF4=4641
-%term LTF8=8737
-%term LTF16=16929
-%term LTI4=4645
-%term LTI8=8741
-%term LTU4=4646
-%term LTU8=8742
-
-%term NEF4=4657
-%term NEF8=8753
-%term NEF16=16945
-%term NEI4=4661
-%term NEI8=8757
-%term NEU4=4662
-%term NEU8=8758
-
-%term JUMPV=584
-
-%term LABELV=600
-
-%term LOADB=233
-%term LOADF4=4321
-%term LOADF8=8417
-%term LOADF16=16609
-%term LOADI1=1253
-%term LOADI2=2277
-%term LOADI4=4325
-%term LOADI8=8421
-%term LOADP4=4327
-%term LOADP8=8423
-%term LOADU1=1254
-%term LOADU2=2278
-%term LOADU4=4326
-%term LOADU8=8422
-
-%term VREGP=711
-%%
-reg: INDIRI1(VREGP) "# read register\n"
-reg: INDIRU1(VREGP) "# read register\n"
-
-reg: INDIRI2(VREGP) "# read register\n"
-reg: INDIRU2(VREGP) "# read register\n"
-
-reg: INDIRF4(VREGP) "# read register\n"
-reg: INDIRI4(VREGP) "# read register\n"
-reg: INDIRP4(VREGP) "# read register\n"
-reg: INDIRU4(VREGP) "# read register\n"
-
-reg: INDIRF8(VREGP) "# read register\n"
-reg: INDIRI8(VREGP) "# read register\n"
-reg: INDIRP8(VREGP) "# read register\n"
-reg: INDIRU8(VREGP) "# read register\n"
-
-stmt: ASGNI1(VREGP,reg) "# write register\n"
-stmt: ASGNU1(VREGP,reg) "# write register\n"
-
-stmt: ASGNI2(VREGP,reg) "# write register\n"
-stmt: ASGNU2(VREGP,reg) "# write register\n"
-
-stmt: ASGNF4(VREGP,reg) "# write register\n"
-stmt: ASGNI4(VREGP,reg) "# write register\n"
-stmt: ASGNP4(VREGP,reg) "# write register\n"
-stmt: ASGNU4(VREGP,reg) "# write register\n"
-
-stmt: ASGNF8(VREGP,reg) "# write register\n"
-stmt: ASGNI8(VREGP,reg) "# write register\n"
-stmt: ASGNP8(VREGP,reg) "# write register\n"
-stmt: ASGNU8(VREGP,reg) "# write register\n"
-con: CNSTI1 "%a"
-con: CNSTU1 "%a"
-
-con: CNSTI2 "%a"
-con: CNSTU2 "%a"
-
-con: CNSTI4 "%a"
-con: CNSTU4 "%a"
-con: CNSTP4 "%a"
-
-con: CNSTI8 "%a"
-con: CNSTU8 "%a"
-con: CNSTP8 "%a"
-stmt: reg ""
-acon: con "%0"
-acon: ADDRGP4 "%a"
-addr: ADDI4(reg,acon) "%1($%0)"
-addr: ADDU4(reg,acon) "%1($%0)"
-addr: ADDP4(reg,acon) "%1($%0)"
-addr: acon "%0"
-addr: reg "($%0)"
-addr: ADDRFP4 "%a+%F($sp)"
-addr: ADDRLP4 "%a+%F($sp)"
-reg: addr "la $%c,%0\n" 1
-reg: CNSTI1 "# reg\n" range(a, 0, 0)
-reg: CNSTI2 "# reg\n" range(a, 0, 0)
-reg: CNSTI4 "# reg\n" range(a, 0, 0)
-reg: CNSTU1 "# reg\n" range(a, 0, 0)
-reg: CNSTU2 "# reg\n" range(a, 0, 0)
-reg: CNSTU4 "# reg\n" range(a, 0, 0)
-reg: CNSTP4 "# reg\n" range(a, 0, 0)
-stmt: ASGNI1(addr,reg) "sb $%1,%0\n" 1
-stmt: ASGNU1(addr,reg) "sb $%1,%0\n" 1
-stmt: ASGNI2(addr,reg) "sh $%1,%0\n" 1
-stmt: ASGNU2(addr,reg) "sh $%1,%0\n" 1
-stmt: ASGNI4(addr,reg) "sw $%1,%0\n" 1
-stmt: ASGNU4(addr,reg) "sw $%1,%0\n" 1
-stmt: ASGNP4(addr,reg) "sw $%1,%0\n" 1
-reg: INDIRI1(addr) "lb $%c,%0\n" 1
-reg: INDIRU1(addr) "lbu $%c,%0\n" 1
-reg: INDIRI2(addr) "lh $%c,%0\n" 1
-reg: INDIRU2(addr) "lhu $%c,%0\n" 1
-reg: INDIRI4(addr) "lw $%c,%0\n" 1
-reg: INDIRU4(addr) "lw $%c,%0\n" 1
-reg: INDIRP4(addr) "lw $%c,%0\n" 1
-
-reg: CVII4(INDIRI1(addr)) "lb $%c,%0\n" 1
-reg: CVII4(INDIRI2(addr)) "lh $%c,%0\n" 1
-reg: CVUU4(INDIRU1(addr)) "lbu $%c,%0\n" 1
-reg: CVUU4(INDIRU2(addr)) "lhu $%c,%0\n" 1
-reg: CVUI4(INDIRU1(addr)) "lbu $%c,%0\n" 1
-reg: CVUI4(INDIRU2(addr)) "lhu $%c,%0\n" 1
-reg: INDIRF4(addr) "l.s $f%c,%0\n" 1
-reg: INDIRF8(addr) "l.d $f%c,%0\n" 1
-stmt: ASGNF4(addr,reg) "s.s $f%1,%0\n" 1
-stmt: ASGNF8(addr,reg) "s.d $f%1,%0\n" 1
-reg: DIVI4(reg,reg) "div $%c,$%0,$%1\n" 1
-reg: DIVU4(reg,reg) "divu $%c,$%0,$%1\n" 1
-reg: MODI4(reg,reg) "rem $%c,$%0,$%1\n" 1
-reg: MODU4(reg,reg) "remu $%c,$%0,$%1\n" 1
-reg: MULI4(reg,reg) "mul $%c,$%0,$%1\n" 1
-reg: MULU4(reg,reg) "mul $%c,$%0,$%1\n" 1
-rc: con "%0"
-rc: reg "$%0"
-
-reg: ADDI4(reg,rc) "addu $%c,$%0,%1\n" 1
-reg: ADDP4(reg,rc) "addu $%c,$%0,%1\n" 1
-reg: ADDU4(reg,rc) "addu $%c,$%0,%1\n" 1
-reg: BANDI4(reg,rc) "and $%c,$%0,%1\n" 1
-reg: BORI4(reg,rc) "or $%c,$%0,%1\n" 1
-reg: BXORI4(reg,rc) "xor $%c,$%0,%1\n" 1
-reg: BANDU4(reg,rc) "and $%c,$%0,%1\n" 1
-reg: BORU4(reg,rc) "or $%c,$%0,%1\n" 1
-reg: BXORU4(reg,rc) "xor $%c,$%0,%1\n" 1
-reg: SUBI4(reg,rc) "subu $%c,$%0,%1\n" 1
-reg: SUBP4(reg,rc) "subu $%c,$%0,%1\n" 1
-reg: SUBU4(reg,rc) "subu $%c,$%0,%1\n" 1
-rc5: CNSTI4 "%a" range(a,0,31)
-rc5: reg "$%0"
-
-reg: LSHI4(reg,rc5) "sll $%c,$%0,%1\n" 1
-reg: LSHU4(reg,rc5) "sll $%c,$%0,%1\n" 1
-reg: RSHI4(reg,rc5) "sra $%c,$%0,%1\n" 1
-reg: RSHU4(reg,rc5) "srl $%c,$%0,%1\n" 1
-reg: BCOMI4(reg) "not $%c,$%0\n" 1
-reg: BCOMU4(reg) "not $%c,$%0\n" 1
-reg: NEGI4(reg) "negu $%c,$%0\n" 1
-reg: LOADI1(reg) "move $%c,$%0\n" move(a)
-reg: LOADU1(reg) "move $%c,$%0\n" move(a)
-reg: LOADI2(reg) "move $%c,$%0\n" move(a)
-reg: LOADU2(reg) "move $%c,$%0\n" move(a)
-reg: LOADI4(reg) "move $%c,$%0\n" move(a)
-reg: LOADP4(reg) "move $%c,$%0\n" move(a)
-reg: LOADU4(reg) "move $%c,$%0\n" move(a)
-reg: ADDF4(reg,reg) "add.s $f%c,$f%0,$f%1\n" 1
-reg: ADDF8(reg,reg) "add.d $f%c,$f%0,$f%1\n" 1
-reg: DIVF4(reg,reg) "div.s $f%c,$f%0,$f%1\n" 1
-reg: DIVF8(reg,reg) "div.d $f%c,$f%0,$f%1\n" 1
-reg: MULF4(reg,reg) "mul.s $f%c,$f%0,$f%1\n" 1
-reg: MULF8(reg,reg) "mul.d $f%c,$f%0,$f%1\n" 1
-reg: SUBF4(reg,reg) "sub.s $f%c,$f%0,$f%1\n" 1
-reg: SUBF8(reg,reg) "sub.d $f%c,$f%0,$f%1\n" 1
-reg: LOADF4(reg) "mov.s $f%c,$f%0\n" move(a)
-reg: LOADF8(reg) "mov.d $f%c,$f%0\n" move(a)
-reg: NEGF4(reg) "neg.s $f%c,$f%0\n" 1
-reg: NEGF8(reg) "neg.d $f%c,$f%0\n" 1
-reg: CVII4(reg) "sll $%c,$%0,8*(4-%a); sra $%c,$%c,8*(4-%a)\n" 2
-reg: CVUI4(reg) "and $%c,$%0,(1<<(8*%a))-1\n" 1
-reg: CVUU4(reg) "and $%c,$%0,(1<<(8*%a))-1\n" 1
-reg: CVFF4(reg) "cvt.s.d $f%c,$f%0\n" 1
-reg: CVFF8(reg) "cvt.d.s $f%c,$f%0\n" 1
-reg: CVIF4(reg) "mtc1 $%0,$f%c; cvt.s.w $f%c,$f%c\n" 2
-reg: CVIF8(reg) "mtc1 $%0,$f%c; cvt.d.w $f%c,$f%c\n" 2
-reg: CVFI4(reg) "trunc.w.s $f2,$f%0,$%c; mfc1 $%c,$f2\n" (a->syms[0]->u.c.v.i==4?2:LBURG_MAX)
-reg: CVFI4(reg) "trunc.w.d $f2,$f%0,$%c; mfc1 $%c,$f2\n" (a->syms[0]->u.c.v.i==8?2:LBURG_MAX)
-stmt: LABELV "%a:\n"
-stmt: JUMPV(acon) "b %0\n" 1
-stmt: JUMPV(reg) ".cpadd $%0\nj $%0\n" !pic
-stmt: JUMPV(reg) "j $%0\n" pic
-stmt: EQI4(reg,reg) "beq $%0,$%1,%a\n" 1
-stmt: EQU4(reg,reg) "beq $%0,$%1,%a\n" 1
-stmt: GEI4(reg,reg) "bge $%0,$%1,%a\n" 1
-stmt: GEU4(reg,reg) "bgeu $%0,$%1,%a\n" 1
-stmt: GTI4(reg,reg) "bgt $%0,$%1,%a\n" 1
-stmt: GTU4(reg,reg) "bgtu $%0,$%1,%a\n" 1
-stmt: LEI4(reg,reg) "ble $%0,$%1,%a\n" 1
-stmt: LEU4(reg,reg) "bleu $%0,$%1,%a\n" 1
-stmt: LTI4(reg,reg) "blt $%0,$%1,%a\n" 1
-stmt: LTU4(reg,reg) "bltu $%0,$%1,%a\n" 1
-stmt: NEI4(reg,reg) "bne $%0,$%1,%a\n" 1
-stmt: NEU4(reg,reg) "bne $%0,$%1,%a\n" 1
-stmt: EQF4(reg,reg) "c.eq.s $f%0,$f%1; bc1t %a\n" 2
-stmt: EQF8(reg,reg) "c.eq.d $f%0,$f%1; bc1t %a\n" 2
-stmt: LEF4(reg,reg) "c.le.s $f%0,$f%1; bc1t %a\n" 2
-stmt: LEF8(reg,reg) "c.le.d $f%0,$f%1; bc1t %a\n" 2
-stmt: LTF4(reg,reg) "c.lt.s $f%0,$f%1; bc1t %a\n" 2
-stmt: LTF8(reg,reg) "c.lt.d $f%0,$f%1; bc1t %a\n" 2
-stmt: GEF4(reg,reg) "c.lt.s $f%0,$f%1; bc1f %a\n" 2
-stmt: GEF8(reg,reg) "c.lt.d $f%0,$f%1; bc1f %a\n" 2
-stmt: GTF4(reg,reg) "c.le.s $f%0,$f%1; bc1f %a\n" 2
-stmt: GTF8(reg,reg) "c.le.d $f%0,$f%1; bc1f %a\n" 2
-stmt: NEF4(reg,reg) "c.eq.s $f%0,$f%1; bc1f %a\n" 2
-stmt: NEF8(reg,reg) "c.eq.d $f%0,$f%1; bc1f %a\n" 2
-ar: ADDRGP4 "%a"
-
-reg: CALLF4(ar) "jal %0\n" 1
-reg: CALLF8(ar) "jal %0\n" 1
-reg: CALLI4(ar) "jal %0\n" 1
-reg: CALLP4(ar) "jal %0\n" 1
-reg: CALLU4(ar) "jal %0\n" 1
-stmt: CALLV(ar) "jal %0\n" 1
-ar: reg "$%0"
-ar: CNSTP4 "%a" range(a, 0, 0x0fffffff)
-stmt: RETF4(reg) "# ret\n" 1
-stmt: RETF8(reg) "# ret\n" 1
-stmt: RETI4(reg) "# ret\n" 1
-stmt: RETU4(reg) "# ret\n" 1
-stmt: RETP4(reg) "# ret\n" 1
-stmt: RETV(reg) "# ret\n" 1
-stmt: ARGF4(reg) "# arg\n" 1
-stmt: ARGF8(reg) "# arg\n" 1
-stmt: ARGI4(reg) "# arg\n" 1
-stmt: ARGP4(reg) "# arg\n" 1
-stmt: ARGU4(reg) "# arg\n" 1
-
-stmt: ARGB(INDIRB(reg)) "# argb %0\n" 1
-stmt: ASGNB(reg,INDIRB(reg)) "# asgnb %0 %1\n" 1
-%%
-static void progend(void){}
-static void progbeg(int argc, char *argv[]) {
- int i;
-
- {
- union {
- char c;
- int i;
- } u;
- u.i = 0;
- u.c = 1;
- swap = ((int)(u.i == 1)) != IR->little_endian;
- }
- print(".set reorder\n");
- pic = !IR->little_endian;
- parseflags(argc, argv);
- for (i = 0; i < argc; i++)
- if (strncmp(argv[i], "-G", 2) == 0)
- gnum = atoi(argv[i] + 2);
- else if (strcmp(argv[i], "-pic=1") == 0
- || strcmp(argv[i], "-pic=0") == 0)
- pic = argv[i][5]-'0';
- for (i = 0; i < 31; i += 2)
- freg2[i] = mkreg("%d", i, 3, FREG);
- for (i = 0; i < 32; i++)
- ireg[i] = mkreg("%d", i, 1, IREG);
- ireg[29]->x.name = "sp";
- d6 = mkreg("6", 6, 3, IREG);
- freg2w = mkwildcard(freg2);
- iregw = mkwildcard(ireg);
- tmask[IREG] = INTTMP; tmask[FREG] = FLTTMP;
- vmask[IREG] = INTVAR; vmask[FREG] = FLTVAR;
- blkreg = mkreg("8", 8, 7, IREG);
-}
-static Symbol rmap(int opk) {
- switch (optype(opk)) {
- case I: case U: case P: case B:
- return iregw;
- case F:
- return freg2w;
- default:
- return 0;
- }
-}
-static void target(Node p) {
- assert(p);
- switch (specific(p->op)) {
- case CNST+I: case CNST+U: case CNST+P:
- if (range(p, 0, 0) == 0) {
- setreg(p, ireg[0]);
- p->x.registered = 1;
- }
- break;
- case CALL+V:
- rtarget(p, 0, ireg[25]);
- break;
- case CALL+F:
- rtarget(p, 0, ireg[25]);
- setreg(p, freg2[0]);
- break;
- case CALL+I: case CALL+P: case CALL+U:
- rtarget(p, 0, ireg[25]);
- setreg(p, ireg[2]);
- break;
- case RET+F:
- rtarget(p, 0, freg2[0]);
- break;
- case RET+I: case RET+U: case RET+P:
- rtarget(p, 0, ireg[2]);
- break;
- case ARG+F: case ARG+I: case ARG+P: case ARG+U: {
- static int ty0;
- int ty = optype(p->op);
- Symbol q;
-
- q = argreg(p->x.argno, p->syms[2]->u.c.v.i, ty, opsize(p->op), ty0);
- if (p->x.argno == 0)
- ty0 = ty;
- if (q &&
- !(ty == F && q->x.regnode->set == IREG))
- rtarget(p, 0, q);
- break;
- }
- case ASGN+B: rtarget(p->kids[1], 0, blkreg); break;
- case ARG+B: rtarget(p->kids[0], 0, blkreg); break;
- }
-}
-static void clobber(Node p) {
- assert(p);
- switch (specific(p->op)) {
- case CALL+F:
- spill(INTTMP | INTRET, IREG, p);
- spill(FLTTMP, FREG, p);
- break;
- case CALL+I: case CALL+P: case CALL+U:
- spill(INTTMP, IREG, p);
- spill(FLTTMP | FLTRET, FREG, p);
- break;
- case CALL+V:
- spill(INTTMP | INTRET, IREG, p);
- spill(FLTTMP | FLTRET, FREG, p);
- break;
- }
-}
-static void emit2(Node p) {
- int dst, n, src, sz, ty;
- static int ty0;
- Symbol q;
-
- switch (specific(p->op)) {
- case ARG+F: case ARG+I: case ARG+P: case ARG+U:
- ty = optype(p->op);
- sz = opsize(p->op);
- if (p->x.argno == 0)
- ty0 = ty;
- q = argreg(p->x.argno, p->syms[2]->u.c.v.i, ty, sz, ty0);
- src = getregnum(p->x.kids[0]);
- if (q == NULL && ty == F && sz == 4)
- print("s.s $f%d,%d($sp)\n", src, p->syms[2]->u.c.v.i);
- else if (q == NULL && ty == F)
- print("s.d $f%d,%d($sp)\n", src, p->syms[2]->u.c.v.i);
- else if (q == NULL)
- print("sw $%d,%d($sp)\n", src, p->syms[2]->u.c.v.i);
- else if (ty == F && sz == 4 && q->x.regnode->set == IREG)
- print("mfc1 $%d,$f%d\n", q->x.regnode->number, src);
- else if (ty == F && q->x.regnode->set == IREG)
- print("mfc1.d $%d,$f%d\n", q->x.regnode->number, src);
- break;
- case ASGN+B:
- dalign = salign = p->syms[1]->u.c.v.i;
- blkcopy(getregnum(p->x.kids[0]), 0,
- getregnum(p->x.kids[1]), 0,
- p->syms[0]->u.c.v.i, tmpregs);
- break;
- case ARG+B:
- dalign = 4;
- salign = p->syms[1]->u.c.v.i;
- blkcopy(29, p->syms[2]->u.c.v.i,
- getregnum(p->x.kids[0]), 0,
- p->syms[0]->u.c.v.i, tmpregs);
- n = p->syms[2]->u.c.v.i + p->syms[0]->u.c.v.i;
- dst = p->syms[2]->u.c.v.i;
- for ( ; dst <= 12 && dst < n; dst += 4)
- print("lw $%d,%d($sp)\n", (dst/4)+4, dst);
- break;
- }
-}
-static Symbol argreg(int argno, int offset, int ty, int sz, int ty0) {
- assert((offset&3) == 0);
- if (offset > 12)
- return NULL;
- else if (argno == 0 && ty == F)
- return freg2[12];
- else if (argno == 1 && ty == F && ty0 == F)
- return freg2[14];
- else if (argno == 1 && ty == F && sz == 8)
- return d6; /* Pair! */
- else
- return ireg[(offset/4) + 4];
-}
-static void doarg(Node p) {
- static int argno;
- int align;
-
- if (argoffset == 0)
- argno = 0;
- p->x.argno = argno++;
- align = p->syms[1]->u.c.v.i < 4 ? 4 : p->syms[1]->u.c.v.i;
- p->syms[2] = intconst(mkactual(align,
- p->syms[0]->u.c.v.i));
-}
-static void local(Symbol p) {
- if (askregvar(p, rmap(ttob(p->type))) == 0)
- mkauto(p);
-}
-static void function(Symbol f, Symbol caller[], Symbol callee[], int ncalls) {
- int i, saved, sizefsave, sizeisave, varargs;
- Symbol r, argregs[4];
-
- usedmask[0] = usedmask[1] = 0;
- freemask[0] = freemask[1] = ~(unsigned)0;
- offset = maxoffset = maxargoffset = 0;
- for (i = 0; callee[i]; i++)
- ;
- varargs = variadic(f->type)
- || i > 0 && strcmp(callee[i-1]->name, "va_alist") == 0;
- for (i = 0; callee[i]; i++) {
- Symbol p = callee[i];
- Symbol q = caller[i];
- assert(q);
- offset = roundup(offset, q->type->align);
- p->x.offset = q->x.offset = offset;
- p->x.name = q->x.name = stringd(offset);
- r = argreg(i, offset, optype(ttob(q->type)), q->type->size, optype(ttob(caller[0]->type)));
- if (i < 4)
- argregs[i] = r;
- offset = roundup(offset + q->type->size, 4);
- if (varargs)
- p->sclass = AUTO;
- else if (r && ncalls == 0 &&
- !isstruct(q->type) && !p->addressed &&
- !(isfloat(q->type) && r->x.regnode->set == IREG)
-) {
- p->sclass = q->sclass = REGISTER;
- askregvar(p, r);
- assert(p->x.regnode && p->x.regnode->vbl == p);
- q->x = p->x;
- q->type = p->type;
- }
- else if (askregvar(p, rmap(ttob(p->type)))
- && r != NULL
- && (isint(p->type) || p->type == q->type)) {
- assert(q->sclass != REGISTER);
- p->sclass = q->sclass = REGISTER;
- q->type = p->type;
- }
- }
- assert(!caller[i]);
- offset = 0;
- gencode(caller, callee);
- if (ncalls)
- usedmask[IREG] |= ((unsigned)1)<<31;
- usedmask[IREG] &= 0xc0ff0000;
- usedmask[FREG] &= 0xfff00000;
- if (pic && ncalls)
- usedmask[IREG] |= 1<<25;
- maxargoffset = roundup(maxargoffset, usedmask[FREG] ? 8 : 4);
- if (ncalls && maxargoffset < 16)
- maxargoffset = 16;
- sizefsave = 4*bitcount(usedmask[FREG]);
- sizeisave = 4*bitcount(usedmask[IREG]);
- framesize = roundup(maxargoffset + sizefsave
- + sizeisave + maxoffset, 8);
- segment(CODE);
- print(".align 2\n");
- print(".ent %s\n", f->x.name);
- print("%s:\n", f->x.name);
- i = maxargoffset + sizefsave - framesize;
- print(".frame $sp,%d,$31\n", framesize);
- if (pic)
- print(".set noreorder\n.cpload $25\n.set reorder\n");
- if (framesize > 0)
- print("addu $sp,$sp,%d\n", -framesize);
- if (usedmask[FREG])
- print(".fmask 0x%x,%d\n", usedmask[FREG], i - 8);
- if (usedmask[IREG])
- print(".mask 0x%x,%d\n", usedmask[IREG],
- i + sizeisave - 4);
- saved = maxargoffset;
- for (i = 20; i <= 30; i += 2)
- if (usedmask[FREG]&(3<<i)) {
- print("s.d $f%d,%d($sp)\n", i, saved);
- saved += 8;
- }
-
- for (i = 16; i <= 31; i++)
- if (usedmask[IREG]&(1<<i)) {
- if (i == 25)
- print(".cprestore %d\n", saved);
- else
- print("sw $%d,%d($sp)\n", i, saved);
- saved += 4;
- }
- for (i = 0; i < 4 && callee[i]; i++) {
- r = argregs[i];
- if (r && r->x.regnode != callee[i]->x.regnode) {
- Symbol out = callee[i];
- Symbol in = caller[i];
- int rn = r->x.regnode->number;
- int rs = r->x.regnode->set;
- int tyin = ttob(in->type);
-
- assert(out && in && r && r->x.regnode);
- assert(out->sclass != REGISTER || out->x.regnode);
- if (out->sclass == REGISTER
- && (isint(out->type) || out->type == in->type)) {
- int outn = out->x.regnode->number;
- if (rs == FREG && tyin == F+sizeop(8))
- print("mov.d $f%d,$f%d\n", outn, rn);
- else if (rs == FREG && tyin == F+sizeop(4))
- print("mov.s $f%d,$f%d\n", outn, rn);
- else if (rs == IREG && tyin == F+sizeop(8))
- print("mtc1.d $%d,$f%d\n", rn, outn);
- else if (rs == IREG && tyin == F+sizeop(4))
- print("mtc1 $%d,$f%d\n", rn, outn);
- else
- print("move $%d,$%d\n", outn, rn);
- } else {
- int off = in->x.offset + framesize;
- if (rs == FREG && tyin == F+sizeop(8))
- print("s.d $f%d,%d($sp)\n", rn, off);
- else if (rs == FREG && tyin == F+sizeop(4))
- print("s.s $f%d,%d($sp)\n", rn, off);
- else {
- int i, n = (in->type->size + 3)/4;
- for (i = rn; i < rn+n && i <= 7; i++)
- print("sw $%d,%d($sp)\n", i, off + (i-rn)*4);
- }
- }
- }
- }
- if (varargs && callee[i-1]) {
- i = callee[i-1]->x.offset + callee[i-1]->type->size;
- for (i = roundup(i, 4)/4; i <= 3; i++)
- print("sw $%d,%d($sp)\n", i + 4, framesize + 4*i);
- }
- emitcode();
- saved = maxargoffset;
- for (i = 20; i <= 30; i += 2)
- if (usedmask[FREG]&(3<<i)) {
- print("l.d $f%d,%d($sp)\n", i, saved);
- saved += 8;
- }
- for (i = 16; i <= 31; i++)
- if (usedmask[IREG]&(1<<i)) {
- print("lw $%d,%d($sp)\n", i, saved);
- saved += 4;
- }
- if (framesize > 0)
- print("addu $sp,$sp,%d\n", framesize);
- print("j $31\n");
- print(".end %s\n", f->x.name);
-}
-static void defconst(int suffix, int size, Value v) {
- if (suffix == F && size == 4) {
- float f = v.d;
- print(".word 0x%x\n", *(unsigned *)&f);
- }
- else if (suffix == F && size == 8) {
- double d = v.d;
- unsigned *p = (unsigned *)&d;
- print(".word 0x%x\n.word 0x%x\n", p[swap], p[!swap]);
- }
- else if (suffix == P)
- print(".word 0x%x\n", v.p);
- else if (size == 1)
- print(".byte 0x%x\n", suffix == I ? v.i : v.u);
- else if (size == 2)
- print(".half 0x%x\n", suffix == I ? v.i : v.u);
- else if (size == 4)
- print(".word 0x%x\n", suffix == I ? v.i : v.u);
-}
-static void defaddress(Symbol p) {
- if (pic && p->scope == LABELS)
- print(".gpword %s\n", p->x.name);
- else
- print(".word %s\n", p->x.name);
-}
-static void defstring(int n, char *str) {
- char *s;
-
- for (s = str; s < str + n; s++)
- print(".byte %d\n", (*s)&0377);
-}
-static void export(Symbol p) {
- print(".globl %s\n", p->x.name);
-}
-static void import(Symbol p) {
- if (!isfunc(p->type))
- print(".extern %s %d\n", p->name, p->type->size);
-}
-static void defsymbol(Symbol p) {
- if (p->scope >= LOCAL && p->sclass == STATIC)
- p->x.name = stringf("L.%d", genlabel(1));
- else if (p->generated)
- p->x.name = stringf("L.%s", p->name);
- else
- assert(p->scope != CONSTANTS || isint(p->type) || isptr(p->type)),
- p->x.name = p->name;
-}
-static void address(Symbol q, Symbol p, long n) {
- if (p->scope == GLOBAL
- || p->sclass == STATIC || p->sclass == EXTERN)
- q->x.name = stringf("%s%s%D", p->x.name,
- n >= 0 ? "+" : "", n);
- else {
- assert(n <= INT_MAX && n >= INT_MIN);
- q->x.offset = p->x.offset + n;
- q->x.name = stringd(q->x.offset);
- }
-}
-static void global(Symbol p) {
- if (p->u.seg == BSS) {
- if (p->sclass == STATIC || Aflag >= 2)
- print(".lcomm %s,%d\n", p->x.name, p->type->size);
- else
- print( ".comm %s,%d\n", p->x.name, p->type->size);
- } else {
- if (p->u.seg == DATA
- && (p->type->size == 0 || p->type->size > gnum))
- print(".data\n");
- else if (p->u.seg == DATA)
- print(".sdata\n");
- print(".align %c\n", ".01.2...3"[p->type->align]);
- print("%s:\n", p->x.name);
- }
-}
-static void segment(int n) {
- cseg = n;
- switch (n) {
- case CODE: print(".text\n"); break;
- case LIT: print(".rdata\n"); break;
- }
-}
-static void space(int n) {
- if (cseg != BSS)
- print(".space %d\n", n);
-}
-static void blkloop(int dreg, int doff, int sreg, int soff, int size, int tmps[]) {
- int lab = genlabel(1);
-
- print("addu $%d,$%d,%d\n", sreg, sreg, size&~7);
- print("addu $%d,$%d,%d\n", tmps[2], dreg, size&~7);
- blkcopy(tmps[2], doff, sreg, soff, size&7, tmps);
- print("L.%d:\n", lab);
- print("addu $%d,$%d,%d\n", sreg, sreg, -8);
- print("addu $%d,$%d,%d\n", tmps[2], tmps[2], -8);
- blkcopy(tmps[2], doff, sreg, soff, 8, tmps);
- print("bltu $%d,$%d,L.%d\n", dreg, tmps[2], lab);
-}
-static void blkfetch(int size, int off, int reg, int tmp) {
- assert(size == 1 || size == 2 || size == 4);
- if (size == 1)
- print("lbu $%d,%d($%d)\n", tmp, off, reg);
- else if (salign >= size && size == 2)
- print("lhu $%d,%d($%d)\n", tmp, off, reg);
- else if (salign >= size)
- print("lw $%d,%d($%d)\n", tmp, off, reg);
- else if (size == 2)
- print("ulhu $%d,%d($%d)\n", tmp, off, reg);
- else
- print("ulw $%d,%d($%d)\n", tmp, off, reg);
-}
-static void blkstore(int size, int off, int reg, int tmp) {
- if (size == 1)
- print("sb $%d,%d($%d)\n", tmp, off, reg);
- else if (dalign >= size && size == 2)
- print("sh $%d,%d($%d)\n", tmp, off, reg);
- else if (dalign >= size)
- print("sw $%d,%d($%d)\n", tmp, off, reg);
- else if (size == 2)
- print("ush $%d,%d($%d)\n", tmp, off, reg);
- else
- print("usw $%d,%d($%d)\n", tmp, off, reg);
-}
-static void stabinit(char *, int, char *[]);
-static void stabline(Coordinate *);
-static void stabsym(Symbol);
-
-static char *currentfile;
-
-static int bitcount(unsigned mask) {
- unsigned i, n = 0;
-
- for (i = 1; i; i <<= 1)
- if (mask&i)
- n++;
- return n;
-}
-
-/* stabinit - initialize stab output */
-static void stabinit(char *file, int argc, char *argv[]) {
- if (file) {
- print(".file 2,\"%s\"\n", file);
- currentfile = file;
- }
-}
-
-/* stabline - emit stab entry for source coordinate *cp */
-static void stabline(Coordinate *cp) {
- if (cp->file && cp->file != currentfile) {
- print(".file 2,\"%s\"\n", cp->file);
- currentfile = cp->file;
- }
- print(".loc 2,%d\n", cp->y);
-}
-
-/* stabsym - output a stab entry for symbol p */
-static void stabsym(Symbol p) {
- if (p == cfunc && IR->stabline)
- (*IR->stabline)(&p->src);
-}
-Interface mipsebIR = {
- 1, 1, 0, /* char */
- 2, 2, 0, /* short */
- 4, 4, 0, /* int */
- 4, 4, 0, /* long */
- 4, 4, 0, /* long long */
- 4, 4, 1, /* float */
- 8, 8, 1, /* double */
- 8, 8, 1, /* long double */
- 4, 4, 0, /* T * */
- 0, 1, 0, /* struct */
- 0, /* little_endian */
- 0, /* mulops_calls */
- 0, /* wants_callb */
- 1, /* wants_argb */
- 1, /* left_to_right */
- 0, /* wants_dag */
- 0, /* unsigned_char */
- address,
- blockbeg,
- blockend,
- defaddress,
- defconst,
- defstring,
- defsymbol,
- emit,
- export,
- function,
- gen,
- global,
- import,
- local,
- progbeg,
- progend,
- segment,
- space,
- 0, 0, 0, stabinit, stabline, stabsym, 0,
- {
- 4, /* max_unaligned_load */
- rmap,
- blkfetch, blkstore, blkloop,
- _label,
- _rule,
- _nts,
- _kids,
- _string,
- _templates,
- _isinstruction,
- _ntname,
- emit2,
- doarg,
- target,
- clobber,
-
- }
-}, mipselIR = {
- 1, 1, 0, /* char */
- 2, 2, 0, /* short */
- 4, 4, 0, /* int */
- 4, 4, 0, /* long */
- 4, 4, 0, /* long long */
- 4, 4, 1, /* float */
- 8, 8, 1, /* double */
- 8, 8, 1, /* long double */
- 4, 4, 0, /* T * */
- 0, 1, 0, /* struct */
- 1, /* little_endian */
- 0, /* mulops_calls */
- 0, /* wants_callb */
- 1, /* wants_argb */
- 1, /* left_to_right */
- 0, /* wants_dag */
- 0, /* unsigned_char */
- address,
- blockbeg,
- blockend,
- defaddress,
- defconst,
- defstring,
- defsymbol,
- emit,
- export,
- function,
- gen,
- global,
- import,
- local,
- progbeg,
- progend,
- segment,
- space,
- 0, 0, 0, stabinit, stabline, stabsym, 0,
- {
- 4, /* max_unaligned_load */
- rmap,
- blkfetch, blkstore, blkloop,
- _label,
- _rule,
- _nts,
- _kids,
- _string,
- _templates,
- _isinstruction,
- _ntname,
- emit2,
- doarg,
- target,
- clobber,
-
- }
-};
-static char rcsid[] = "$Id: mips.md 145 2001-10-17 21:53:10Z timo $";
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-12 22:03:11 +0000