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- #include <ctype.h>
- #define EXTERN
- #include "a.h"
- #include "y.tab.h"
- void
- main(int argc, char *argv[])
- {
- char *p;
- int nout, nproc, status, i, c;
- thechar = 'v';
- thestring = "mips";
- memset(debug, 0, sizeof(debug));
- cinit();
- outfile = 0;
- include[ninclude++] = ".";
- ARGBEGIN {
- default:
- c = ARGC();
- if(c >= 0 || c < sizeof(debug))
- debug[c] = 1;
- break;
- case 'o':
- outfile = ARGF();
- break;
- case 'D':
- p = ARGF();
- if(p)
- Dlist[nDlist++] = p;
- break;
- case 'I':
- p = ARGF();
- setinclude(p);
- break;
- } ARGEND
- if(*argv == 0) {
- print("usage: %ca [-options] file.s\n", thechar);
- errorexit();
- }
- if(argc > 1 && systemtype(Windows)){
- print("can't assemble multiple files on windows\n");
- errorexit();
- }
- if(argc > 1 && !systemtype(Windows)) {
- nproc = 1;
- if(p = getenv("NPROC"))
- nproc = atol(p); /* */
- c = 0;
- nout = 0;
- for(;;) {
- while(nout < nproc && argc > 0) {
- i = myfork();
- if(i < 0) {
- i = mywait(&status);
- if(i < 0)
- errorexit();
- if(status)
- c++;
- nout--;
- continue;
- }
- if(i == 0) {
- print("%s:\n", *argv);
- if(assemble(*argv))
- errorexit();
- exits(0);
- }
- nout++;
- argc--;
- argv++;
- }
- i = mywait(&status);
- if(i < 0) {
- if(c)
- errorexit();
- exits(0);
- }
- if(status)
- c++;
- nout--;
- }
- }
- if(assemble(argv[0]))
- errorexit();
- exits(0);
- }
- int
- assemble(char *file)
- {
- char ofile[100], incfile[20], *p;
- int i, of;
- strcpy(ofile, file);
- p = utfrrune(ofile, pathchar());
- if(p) {
- include[0] = ofile;
- *p++ = 0;
- } else
- p = ofile;
- if(outfile == 0) {
- outfile = p;
- if(outfile){
- p = utfrrune(outfile, '.');
- if(p)
- if(p[1] == 's' && p[2] == 0)
- p[0] = 0;
- p = utfrune(outfile, 0);
- p[0] = '.';
- p[1] = thechar;
- p[2] = 0;
- } else
- outfile = "/dev/null";
- }
- p = getenv("INCLUDE");
- if(p) {
- setinclude(p);
- } else {
- if(systemtype(Plan9)) {
- sprint(incfile,"/%s/include", thestring);
- setinclude(strdup(incfile));
- }
- }
- of = mycreat(outfile, 0664);
- if(of < 0) {
- yyerror("%ca: cannot create %s", thechar, outfile);
- errorexit();
- }
- Binit(&obuf, of, OWRITE);
- pass = 1;
- pinit(file);
- for(i=0; i<nDlist; i++)
- dodefine(Dlist[i]);
- yyparse();
- if(nerrors) {
- cclean();
- return nerrors;
- }
- pass = 2;
- outhist();
- pinit(file);
- for(i=0; i<nDlist; i++)
- dodefine(Dlist[i]);
- yyparse();
- cclean();
- return nerrors;
- }
- struct
- {
- char *name;
- ushort type;
- ushort value;
- } itab[] =
- {
- "SP", LSP, D_AUTO,
- "SB", LSB, D_EXTERN,
- "FP", LFP, D_PARAM,
- "PC", LPC, D_BRANCH,
- "HI", LHI, D_HI,
- "LO", LLO, D_LO,
- "R", LR, 0,
- "R0", LREG, 0,
- "R1", LREG, 1,
- "R2", LREG, 2,
- "R3", LREG, 3,
- "R4", LREG, 4,
- "R5", LREG, 5,
- "R6", LREG, 6,
- "R7", LREG, 7,
- "R8", LREG, 8,
- "R9", LREG, 9,
- "R10", LREG, 10,
- "R11", LREG, 11,
- "R12", LREG, 12,
- "R13", LREG, 13,
- "R14", LREG, 14,
- "R15", LREG, 15,
- "R16", LREG, 16,
- "R17", LREG, 17,
- "R18", LREG, 18,
- "R19", LREG, 19,
- "R20", LREG, 20,
- "R21", LREG, 21,
- "R22", LREG, 22,
- "R23", LREG, 23,
- "R24", LREG, 24,
- "R25", LREG, 25,
- "R26", LREG, 26,
- "R27", LREG, 27,
- "R28", LREG, 28,
- "R29", LREG, 29,
- "R30", LREG, 30,
- "R31", LREG, 31,
- "M", LM, 0,
- "M0", LMREG, 0,
- "M1", LMREG, 1,
- "M2", LMREG, 2,
- "M3", LMREG, 3,
- "M4", LMREG, 4,
- "M5", LMREG, 5,
- "M6", LMREG, 6,
- "M7", LMREG, 7,
- "M8", LMREG, 8,
- "M9", LMREG, 9,
- "M10", LMREG, 10,
- "M11", LMREG, 11,
- "M12", LMREG, 12,
- "M13", LMREG, 13,
- "M14", LMREG, 14,
- "M15", LMREG, 15,
- "M16", LMREG, 16,
- "M17", LMREG, 17,
- "M18", LMREG, 18,
- "M19", LMREG, 19,
- "M20", LMREG, 20,
- "M21", LMREG, 21,
- "M22", LMREG, 22,
- "M23", LMREG, 23,
- "M24", LMREG, 24,
- "M25", LMREG, 25,
- "M26", LMREG, 26,
- "M27", LMREG, 27,
- "M28", LMREG, 28,
- "M29", LMREG, 29,
- "M30", LMREG, 30,
- "M31", LMREG, 31,
- "F", LF, 0,
- "F0", LFREG, 0,
- "F1", LFREG, 1,
- "F2", LFREG, 2,
- "F3", LFREG, 3,
- "F4", LFREG, 4,
- "F5", LFREG, 5,
- "F6", LFREG, 6,
- "F7", LFREG, 7,
- "F8", LFREG, 8,
- "F9", LFREG, 9,
- "F10", LFREG, 10,
- "F11", LFREG, 11,
- "F12", LFREG, 12,
- "F13", LFREG, 13,
- "F14", LFREG, 14,
- "F15", LFREG, 15,
- "F16", LFREG, 16,
- "F17", LFREG, 17,
- "F18", LFREG, 18,
- "F19", LFREG, 19,
- "F20", LFREG, 20,
- "F21", LFREG, 21,
- "F22", LFREG, 22,
- "F23", LFREG, 23,
- "F24", LFREG, 24,
- "F25", LFREG, 25,
- "F26", LFREG, 26,
- "F27", LFREG, 27,
- "F28", LFREG, 28,
- "F29", LFREG, 29,
- "F30", LFREG, 30,
- "F31", LFREG, 31,
- "FCR", LFCR, 0,
- "FCR0", LFCREG, 0,
- "FCR1", LFCREG, 1,
- "FCR2", LFCREG, 2,
- "FCR3", LFCREG, 3,
- "FCR4", LFCREG, 4,
- "FCR5", LFCREG, 5,
- "FCR6", LFCREG, 6,
- "FCR7", LFCREG, 7,
- "FCR8", LFCREG, 8,
- "FCR9", LFCREG, 9,
- "FCR10", LFCREG, 10,
- "FCR11", LFCREG, 11,
- "FCR12", LFCREG, 12,
- "FCR13", LFCREG, 13,
- "FCR14", LFCREG, 14,
- "FCR15", LFCREG, 15,
- "FCR16", LFCREG, 16,
- "FCR17", LFCREG, 17,
- "FCR18", LFCREG, 18,
- "FCR19", LFCREG, 19,
- "FCR20", LFCREG, 20,
- "FCR21", LFCREG, 21,
- "FCR22", LFCREG, 22,
- "FCR23", LFCREG, 23,
- "FCR24", LFCREG, 24,
- "FCR25", LFCREG, 25,
- "FCR26", LFCREG, 26,
- "FCR27", LFCREG, 27,
- "FCR28", LFCREG, 28,
- "FCR29", LFCREG, 29,
- "FCR30", LFCREG, 30,
- "FCR31", LFCREG, 31,
- "ADD", LTYPE1, AADD,
- "ADDU", LTYPE1, AADDU,
- "SUB", LTYPE1, ASUB, /* converted to ADD(-) in loader */
- "SUBU", LTYPE1, ASUBU,
- "SGT", LTYPE1, ASGT,
- "SGTU", LTYPE1, ASGTU,
- "AND", LTYPE1, AAND,
- "OR", LTYPE1, AOR,
- "XOR", LTYPE1, AXOR,
- "SLL", LTYPE1, ASLL,
- "SRL", LTYPE1, ASRL,
- "SRA", LTYPE1, ASRA,
- "ADDV", LTYPE1, AADDV,
- "ADDVU", LTYPE1, AADDVU,
- "SUBV", LTYPE1, ASUBV, /* converted to ADD(-) in loader */
- "SUBVU", LTYPE1, ASUBVU,
- "SLLV", LTYPE1, ASLLV,
- "SRLV", LTYPE1, ASRLV,
- "SRAV", LTYPE1, ASRAV,
- "NOR", LTYPE2, ANOR,
- "MOVB", LTYPE3, AMOVB,
- "MOVBU", LTYPE3, AMOVBU,
- "MOVH", LTYPE3, AMOVH,
- "MOVHU", LTYPE3, AMOVHU,
- "MOVWL", LTYPE3, AMOVWL,
- "MOVWR", LTYPE3, AMOVWR,
- "MOVVL", LTYPE3, AMOVVL,
- "MOVVR", LTYPE3, AMOVVR,
- "BREAK", LTYPEJ, ABREAK, /* overloaded CACHE opcode */
- "END", LTYPE4, AEND,
- "REM", LTYPE6, AREM,
- "REMU", LTYPE6, AREMU,
- "RET", LTYPE4, ARET,
- "SYSCALL", LTYPE4, ASYSCALL,
- "TLBP", LTYPE4, ATLBP,
- "TLBR", LTYPE4, ATLBR,
- "TLBWI", LTYPE4, ATLBWI,
- "TLBWR", LTYPE4, ATLBWR,
- "MOVW", LTYPE5, AMOVW,
- "MOVV", LTYPE5, AMOVV,
- "MOVD", LTYPE5, AMOVD,
- "MOVF", LTYPE5, AMOVF,
- "DIV", LTYPE6, ADIV,
- "DIVU", LTYPE6, ADIVU,
- "MUL", LTYPE6, AMUL,
- "MULU", LTYPE6, AMULU,
- "DIVV", LTYPE6, ADIVV,
- "DIVVU", LTYPE6, ADIVVU,
- "MULV", LTYPE6, AMULV,
- "MULVU", LTYPE6, AMULVU,
- "RFE", LTYPE7, ARFE,
- "JMP", LTYPE7, AJMP,
- "JAL", LTYPE8, AJAL,
- "BEQ", LTYPE9, ABEQ,
- "BNE", LTYPE9, ABNE,
- "BGEZ", LTYPEA, ABGEZ,
- "BGEZAL", LTYPEA, ABGEZAL,
- "BGTZ", LTYPEA, ABGTZ,
- "BLEZ", LTYPEA, ABLEZ,
- "BLTZ", LTYPEA, ABLTZ,
- "BLTZAL", LTYPEA, ABLTZAL,
- "TEXT", LTYPEB, ATEXT,
- "GLOBL", LTYPEB, AGLOBL,
- "DATA", LTYPEC, ADATA,
- "MOVDF", LTYPE5, AMOVDF,
- "MOVDW", LTYPE5, AMOVDW,
- "MOVFD", LTYPE5, AMOVFD,
- "MOVFW", LTYPE5, AMOVFW,
- "MOVWD", LTYPE5, AMOVWD,
- "MOVWF", LTYPE5, AMOVWF,
- "ABSD", LTYPED, AABSD,
- "ABSF", LTYPED, AABSF,
- "ABSW", LTYPED, AABSW,
- "NEGD", LTYPED, ANEGD,
- "NEGF", LTYPED, ANEGF,
- "NEGW", LTYPED, ANEGW,
- "CMPEQD", LTYPEF, ACMPEQD,
- "CMPEQF", LTYPEF, ACMPEQF,
- "CMPGED", LTYPEF, ACMPGED,
- "CMPGEF", LTYPEF, ACMPGEF,
- "CMPGTD", LTYPEF, ACMPGTD,
- "CMPGTF", LTYPEF, ACMPGTF,
- "ADDD", LTYPEE, AADDD,
- "ADDF", LTYPEE, AADDF,
- "ADDW", LTYPEE, AADDW,
- "DIVD", LTYPEE, ADIVD,
- "DIVF", LTYPEE, ADIVF,
- "DIVW", LTYPEE, ADIVW,
- "MULD", LTYPEE, AMULD,
- "MULF", LTYPEE, AMULF,
- "MULW", LTYPEE, AMULW,
- "SUBD", LTYPEE, ASUBD,
- "SUBF", LTYPEE, ASUBF,
- "SUBW", LTYPEE, ASUBW,
- "BFPT", LTYPEG, ABFPT,
- "BFPF", LTYPEG, ABFPF,
- "WORD", LTYPEH, AWORD,
- "NOP", LTYPEI, ANOP,
- "SCHED", LSCHED, 0,
- "NOSCHED", LSCHED, 0x80,
- 0
- };
- void
- cinit(void)
- {
- Sym *s;
- int i;
- nullgen.sym = S;
- nullgen.offset = 0;
- nullgen.type = D_NONE;
- nullgen.name = D_NONE;
- nullgen.reg = NREG;
- if(FPCHIP)
- nullgen.dval = 0;
- for(i=0; i<sizeof(nullgen.sval); i++)
- nullgen.sval[i] = 0;
- nerrors = 0;
- iostack = I;
- iofree = I;
- peekc = IGN;
- nhunk = 0;
- for(i=0; i<NHASH; i++)
- hash[i] = S;
- for(i=0; itab[i].name; i++) {
- s = slookup(itab[i].name);
- s->type = itab[i].type;
- s->value = itab[i].value;
- }
- pathname = allocn(pathname, 0, 100);
- if(mygetwd(pathname, 99) == 0) {
- pathname = allocn(pathname, 100, 900);
- if(mygetwd(pathname, 999) == 0)
- strcpy(pathname, "/???");
- }
- }
- void
- syminit(Sym *s)
- {
- s->type = LNAME;
- s->value = 0;
- }
- int
- isreg(Gen *g)
- {
- USED(g);
- return 1;
- }
- void
- cclean(void)
- {
- outcode(AEND, &nullgen, NREG, &nullgen);
- Bflush(&obuf);
- }
- void
- zname(char *n, int t, int s)
- {
- Bputc(&obuf, ANAME);
- Bputc(&obuf, t); /* type */
- Bputc(&obuf, s); /* sym */
- while(*n) {
- Bputc(&obuf, *n);
- n++;
- }
- Bputc(&obuf, 0);
- }
- void
- zaddr(Gen *a, int s)
- {
- long l;
- int i;
- char *n;
- Ieee e;
- Bputc(&obuf, a->type);
- Bputc(&obuf, a->reg);
- Bputc(&obuf, s);
- Bputc(&obuf, a->name);
- switch(a->type) {
- default:
- print("unknown type %d\n", a->type);
- exits("arg");
- case D_NONE:
- case D_REG:
- case D_FREG:
- case D_MREG:
- case D_FCREG:
- case D_LO:
- case D_HI:
- break;
- case D_OREG:
- case D_CONST:
- case D_OCONST:
- case D_BRANCH:
- l = a->offset;
- Bputc(&obuf, l);
- Bputc(&obuf, l>>8);
- Bputc(&obuf, l>>16);
- Bputc(&obuf, l>>24);
- break;
- case D_SCONST:
- n = a->sval;
- for(i=0; i<NSNAME; i++) {
- Bputc(&obuf, *n);
- n++;
- }
- break;
- case D_FCONST:
- ieeedtod(&e, a->dval);
- Bputc(&obuf, e.l);
- Bputc(&obuf, e.l>>8);
- Bputc(&obuf, e.l>>16);
- Bputc(&obuf, e.l>>24);
- Bputc(&obuf, e.h);
- Bputc(&obuf, e.h>>8);
- Bputc(&obuf, e.h>>16);
- Bputc(&obuf, e.h>>24);
- break;
- }
- }
- void
- outcode(int a, Gen *g1, int reg, Gen *g2)
- {
- int sf, st, t;
- Sym *s;
- if(pass == 1)
- goto out;
- jackpot:
- sf = 0;
- s = g1->sym;
- while(s != S) {
- sf = s->sym;
- if(sf < 0 || sf >= NSYM)
- sf = 0;
- t = g1->name;
- if(h[sf].type == t)
- if(h[sf].sym == s)
- break;
- zname(s->name, t, sym);
- s->sym = sym;
- h[sym].sym = s;
- h[sym].type = t;
- sf = sym;
- sym++;
- if(sym >= NSYM)
- sym = 1;
- break;
- }
- st = 0;
- s = g2->sym;
- while(s != S) {
- st = s->sym;
- if(st < 0 || st >= NSYM)
- st = 0;
- t = g2->name;
- if(h[st].type == t)
- if(h[st].sym == s)
- break;
- zname(s->name, t, sym);
- s->sym = sym;
- h[sym].sym = s;
- h[sym].type = t;
- st = sym;
- sym++;
- if(sym >= NSYM)
- sym = 1;
- if(st == sf)
- goto jackpot;
- break;
- }
- Bputc(&obuf, a);
- Bputc(&obuf, reg|nosched);
- Bputc(&obuf, lineno);
- Bputc(&obuf, lineno>>8);
- Bputc(&obuf, lineno>>16);
- Bputc(&obuf, lineno>>24);
- zaddr(g1, sf);
- zaddr(g2, st);
- out:
- if(a != AGLOBL && a != ADATA)
- pc++;
- }
- void
- outhist(void)
- {
- Gen g;
- Hist *h;
- char *p, *q, *op, c;
- int n;
- g = nullgen;
- c = pathchar();
- for(h = hist; h != H; h = h->link) {
- p = h->name;
- op = 0;
- if(p && p[0] != c && h->offset == 0 && pathname){
- /* on windows skip drive specifier in pathname */
- if(systemtype(Windows) && pathname[2] == c) {
- op = p;
- p = pathname+2;
- *p = '/';
- } else if(pathname[0] == c){
- op = p;
- p = pathname;
- }
- }
- while(p) {
- q = strchr(p, c);
- if(q) {
- n = q-p;
- if(n == 0)
- n = 1; /* leading "/" */
- q++;
- } else {
- n = strlen(p);
- q = 0;
- }
- if(n) {
- Bputc(&obuf, ANAME);
- Bputc(&obuf, D_FILE); /* type */
- Bputc(&obuf, 1); /* sym */
- Bputc(&obuf, '<');
- Bwrite(&obuf, p, n);
- Bputc(&obuf, 0);
- }
- p = q;
- if(p == 0 && op) {
- p = op;
- op = 0;
- }
- }
- g.offset = h->offset;
- Bputc(&obuf, AHISTORY);
- Bputc(&obuf, 0);
- Bputc(&obuf, h->line);
- Bputc(&obuf, h->line>>8);
- Bputc(&obuf, h->line>>16);
- Bputc(&obuf, h->line>>24);
- zaddr(&nullgen, 0);
- zaddr(&g, 0);
- }
- }
- #include "../cc/lexbody"
- #include "../cc/macbody"
- #include "../cc/compat"
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