// Inferno utils/8a/lex.c
// http://code.google.com/p/inferno-os/source/browse/utils/8a/lex.c
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth ([email protected])
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth ([email protected])
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#define EXTERN
#include "a.h"
#include "y.tab.h"
#include <ctype.h>
enum
{
Plan9 = 1<<0,
Unix = 1<<1,
Windows = 1<<2,
};
int
systemtype(int sys)
{
return sys&Plan9;
}
int
pathchar(void)
{
return '/';
}
void
main(int argc, char *argv[])
{
char *p;
int nout, nproc, i, c;
thechar = '8';
thestring = "386";
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(;;) {
Waitmsg *w;
while(nout < nproc && argc > 0) {
i = fork();
if(i < 0) {
fprint(2, "fork: %r\n");
errorexit();
}
if(i == 0) {
print("%s:\n", *argv);
if(assemble(*argv))
errorexit();
exits(0);
}
nout++;
argc--;
argv++;
}
w = wait();
if(w == nil) {
if(c)
errorexit();
exits(0);
}
if(w->msg[0])
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 = create(outfile, OWRITE, 0664);
if(of < 0) {
yyerror("%ca: cannot create %s", thechar, outfile);
errorexit();
}
Binit(&obuf, of, OWRITE);
pass = 1;
pinit(file);
Bprint(&obuf, "%s\n", thestring);
for(i=0; i<nDlist; i++)
dodefine(Dlist[i]);
yyparse();
if(nerrors) {
cclean();
return nerrors;
}
Bprint(&obuf, "\n!\n");
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,
"AL", LBREG, D_AL,
"CL", LBREG, D_CL,
"DL", LBREG, D_DL,
"BL", LBREG, D_BL,
"AH", LBREG, D_AH,
"CH", LBREG, D_CH,
"DH", LBREG, D_DH,
"BH", LBREG, D_BH,
"AX", LLREG, D_AX,
"CX", LLREG, D_CX,
"DX", LLREG, D_DX,
"BX", LLREG, D_BX,
/* "SP", LLREG, D_SP, */
"BP", LLREG, D_BP,
"SI", LLREG, D_SI,
"DI", LLREG, D_DI,
"F0", LFREG, D_F0+0,
"F1", LFREG, D_F0+1,
"F2", LFREG, D_F0+2,
"F3", LFREG, D_F0+3,
"F4", LFREG, D_F0+4,
"F5", LFREG, D_F0+5,
"F6", LFREG, D_F0+6,
"F7", LFREG, D_F0+7,
"CS", LSREG, D_CS,
"SS", LSREG, D_SS,
"DS", LSREG, D_DS,
"ES", LSREG, D_ES,
"FS", LSREG, D_FS,
"GS", LSREG, D_GS,
"GDTR", LBREG, D_GDTR,
"IDTR", LBREG, D_IDTR,
"LDTR", LBREG, D_LDTR,
"MSW", LBREG, D_MSW,
"TASK", LBREG, D_TASK,
"CR0", LBREG, D_CR+0,
"CR1", LBREG, D_CR+1,
"CR2", LBREG, D_CR+2,
"CR3", LBREG, D_CR+3,
"CR4", LBREG, D_CR+4,
"CR5", LBREG, D_CR+5,
"CR6", LBREG, D_CR+6,
"CR7", LBREG, D_CR+7,
"DR0", LBREG, D_DR+0,
"DR1", LBREG, D_DR+1,
"DR2", LBREG, D_DR+2,
"DR3", LBREG, D_DR+3,
"DR4", LBREG, D_DR+4,
"DR5", LBREG, D_DR+5,
"DR6", LBREG, D_DR+6,
"DR7", LBREG, D_DR+7,
"TR0", LBREG, D_TR+0,
"TR1", LBREG, D_TR+1,
"TR2", LBREG, D_TR+2,
"TR3", LBREG, D_TR+3,
"TR4", LBREG, D_TR+4,
"TR5", LBREG, D_TR+5,
"TR6", LBREG, D_TR+6,
"TR7", LBREG, D_TR+7,
"AAA", LTYPE0, AAAA,
"AAD", LTYPE0, AAAD,
"AAM", LTYPE0, AAAM,
"AAS", LTYPE0, AAAS,
"ADCB", LTYPE3, AADCB,
"ADCL", LTYPE3, AADCL,
"ADCW", LTYPE3, AADCW,
"ADDB", LTYPE3, AADDB,
"ADDL", LTYPE3, AADDL,
"ADDW", LTYPE3, AADDW,
"ADJSP", LTYPE2, AADJSP,
"ANDB", LTYPE3, AANDB,
"ANDL", LTYPE3, AANDL,
"ANDW", LTYPE3, AANDW,
"ARPL", LTYPE3, AARPL,
"BOUNDL", LTYPE3, ABOUNDL,
"BOUNDW", LTYPE3, ABOUNDW,
"BSFL", LTYPE3, ABSFL,
"BSFW", LTYPE3, ABSFW,
"BSRL", LTYPE3, ABSRL,
"BSRW", LTYPE3, ABSRW,
"BTCL", LTYPE3, ABTCL,
"BTCW", LTYPE3, ABTCW,
"BTL", LTYPE3, ABTL,
"BTRL", LTYPE3, ABTRL,
"BTRW", LTYPE3, ABTRW,
"BTSL", LTYPE3, ABTSL,
"BTSW", LTYPE3, ABTSW,
"BTW", LTYPE3, ABTW,
"BYTE", LTYPE2, ABYTE,
"CALL", LTYPEC, ACALL,
"CLC", LTYPE0, ACLC,
"CLD", LTYPE0, ACLD,
"CLI", LTYPE0, ACLI,
"CLTS", LTYPE0, ACLTS,
"CMC", LTYPE0, ACMC,
"CMPB", LTYPE4, ACMPB,
"CMPL", LTYPE4, ACMPL,
"CMPW", LTYPE4, ACMPW,
"CMPSB", LTYPE0, ACMPSB,
"CMPSL", LTYPE0, ACMPSL,
"CMPSW", LTYPE0, ACMPSW,
"CMPXCHGB", LTYPE3, ACMPXCHGB,
"CMPXCHGL", LTYPE3, ACMPXCHGL,
"CMPXCHGW", LTYPE3, ACMPXCHGW,
"DAA", LTYPE0, ADAA,
"DAS", LTYPE0, ADAS,
"DATA", LTYPED, ADATA,
"DECB", LTYPE1, ADECB,
"DECL", LTYPE1, ADECL,
"DECW", LTYPE1, ADECW,
"DIVB", LTYPE2, ADIVB,
"DIVL", LTYPE2, ADIVL,
"DIVW", LTYPE2, ADIVW,
"END", LTYPE0, AEND,
"ENTER", LTYPE2, AENTER,
"GLOBL", LTYPEG, AGLOBL,
"HLT", LTYPE0, AHLT,
"IDIVB", LTYPE2, AIDIVB,
"IDIVL", LTYPE2, AIDIVL,
"IDIVW", LTYPE2, AIDIVW,
"IMULB", LTYPE2, AIMULB,
"IMULL", LTYPE2, AIMULL,
"IMULW", LTYPE2, AIMULW,
"INB", LTYPE0, AINB,
"INL", LTYPE0, AINL,
"INW", LTYPE0, AINW,
"INCB", LTYPE1, AINCB,
"INCL", LTYPE1, AINCL,
"INCW", LTYPE1, AINCW,
"INSB", LTYPE0, AINSB,
"INSL", LTYPE0, AINSL,
"INSW", LTYPE0, AINSW,
"INT", LTYPE2, AINT,
"INTO", LTYPE0, AINTO,
"IRETL", LTYPE0, AIRETL,
"IRETW", LTYPE0, AIRETW,
"JOS", LTYPER, AJOS,
"JO", LTYPER, AJOS, /* alternate */
"JOC", LTYPER, AJOC,
"JNO", LTYPER, AJOC, /* alternate */
"JCS", LTYPER, AJCS,
"JB", LTYPER, AJCS, /* alternate */
"JC", LTYPER, AJCS, /* alternate */
"JNAE", LTYPER, AJCS, /* alternate */
"JLO", LTYPER, AJCS, /* alternate */
"JCC", LTYPER, AJCC,
"JAE", LTYPER, AJCC, /* alternate */
"JNB", LTYPER, AJCC, /* alternate */
"JNC", LTYPER, AJCC, /* alternate */
"JHS", LTYPER, AJCC, /* alternate */
"JEQ", LTYPER, AJEQ,
"JE", LTYPER, AJEQ, /* alternate */
"JZ", LTYPER, AJEQ, /* alternate */
"JNE", LTYPER, AJNE,
"JNZ", LTYPER, AJNE, /* alternate */
"JLS", LTYPER, AJLS,
"JBE", LTYPER, AJLS, /* alternate */
"JNA", LTYPER, AJLS, /* alternate */
"JHI", LTYPER, AJHI,
"JA", LTYPER, AJHI, /* alternate */
"JNBE", LTYPER, AJHI, /* alternate */
"JMI", LTYPER, AJMI,
"JS", LTYPER, AJMI, /* alternate */
"JPL", LTYPER, AJPL,
"JNS", LTYPER, AJPL, /* alternate */
"JPS", LTYPER, AJPS,
"JP", LTYPER, AJPS, /* alternate */
"JPE", LTYPER, AJPS, /* alternate */
"JPC", LTYPER, AJPC,
"JNP", LTYPER, AJPC, /* alternate */
"JPO", LTYPER, AJPC, /* alternate */
"JLT", LTYPER, AJLT,
"JL", LTYPER, AJLT, /* alternate */
"JNGE", LTYPER, AJLT, /* alternate */
"JGE", LTYPER, AJGE,
"JNL", LTYPER, AJGE, /* alternate */
"JLE", LTYPER, AJLE,
"JNG", LTYPER, AJLE, /* alternate */
"JGT", LTYPER, AJGT,
"JG", LTYPER, AJGT, /* alternate */
"JNLE", LTYPER, AJGT, /* alternate */
"JCXZ", LTYPER, AJCXZ,
"JMP", LTYPEC, AJMP,
"LAHF", LTYPE0, ALAHF,
"LARL", LTYPE3, ALARL,
"LARW", LTYPE3, ALARW,
"LEAL", LTYPE3, ALEAL,
"LEAW", LTYPE3, ALEAW,
"LEAVEL", LTYPE0, ALEAVEL,
"LEAVEW", LTYPE0, ALEAVEW,
"LOCK", LTYPE0, ALOCK,
"LODSB", LTYPE0, ALODSB,
"LODSL", LTYPE0, ALODSL,
"LODSW", LTYPE0, ALODSW,
"LONG", LTYPE2, ALONG,
"LOOP", LTYPER, ALOOP,
"LOOPEQ", LTYPER, ALOOPEQ,
"LOOPNE", LTYPER, ALOOPNE,
"LSLL", LTYPE3, ALSLL,
"LSLW", LTYPE3, ALSLW,
"MOVB", LTYPE3, AMOVB,
"MOVL", LTYPEM, AMOVL,
"MOVW", LTYPEM, AMOVW,
"MOVBLSX", LTYPE3, AMOVBLSX,
"MOVBLZX", LTYPE3, AMOVBLZX,
"MOVBWSX", LTYPE3, AMOVBWSX,
"MOVBWZX", LTYPE3, AMOVBWZX,
"MOVWLSX", LTYPE3, AMOVWLSX,
"MOVWLZX", LTYPE3, AMOVWLZX,
"MOVSB", LTYPE0, AMOVSB,
"MOVSL", LTYPE0, AMOVSL,
"MOVSW", LTYPE0, AMOVSW,
"MULB", LTYPE2, AMULB,
"MULL", LTYPE2, AMULL,
"MULW", LTYPE2, AMULW,
"NEGB", LTYPE1, ANEGB,
"NEGL", LTYPE1, ANEGL,
"NEGW", LTYPE1, ANEGW,
"NOP", LTYPEN, ANOP,
"NOTB", LTYPE1, ANOTB,
"NOTL", LTYPE1, ANOTL,
"NOTW", LTYPE1, ANOTW,
"ORB", LTYPE3, AORB,
"ORL", LTYPE3, AORL,
"ORW", LTYPE3, AORW,
"OUTB", LTYPE0, AOUTB,
"OUTL", LTYPE0, AOUTL,
"OUTW", LTYPE0, AOUTW,
"OUTSB", LTYPE0, AOUTSB,
"OUTSL", LTYPE0, AOUTSL,
"OUTSW", LTYPE0, AOUTSW,
"POPAL", LTYPE0, APOPAL,
"POPAW", LTYPE0, APOPAW,
"POPFL", LTYPE0, APOPFL,
"POPFW", LTYPE0, APOPFW,
"POPL", LTYPE1, APOPL,
"POPW", LTYPE1, APOPW,
"PUSHAL", LTYPE0, APUSHAL,
"PUSHAW", LTYPE0, APUSHAW,
"PUSHFL", LTYPE0, APUSHFL,
"PUSHFW", LTYPE0, APUSHFW,
"PUSHL", LTYPE2, APUSHL,
"PUSHW", LTYPE2, APUSHW,
"RCLB", LTYPE3, ARCLB,
"RCLL", LTYPE3, ARCLL,
"RCLW", LTYPE3, ARCLW,
"RCRB", LTYPE3, ARCRB,
"RCRL", LTYPE3, ARCRL,
"RCRW", LTYPE3, ARCRW,
"REP", LTYPE0, AREP,
"REPN", LTYPE0, AREPN,
"RET", LTYPE0, ARET,
"ROLB", LTYPE3, AROLB,
"ROLL", LTYPE3, AROLL,
"ROLW", LTYPE3, AROLW,
"RORB", LTYPE3, ARORB,
"RORL", LTYPE3, ARORL,
"RORW", LTYPE3, ARORW,
"SAHF", LTYPE0, ASAHF,
"SALB", LTYPE3, ASALB,
"SALL", LTYPE3, ASALL,
"SALW", LTYPE3, ASALW,
"SARB", LTYPE3, ASARB,
"SARL", LTYPE3, ASARL,
"SARW", LTYPE3, ASARW,
"SBBB", LTYPE3, ASBBB,
"SBBL", LTYPE3, ASBBL,
"SBBW", LTYPE3, ASBBW,
"SCASB", LTYPE0, ASCASB,
"SCASL", LTYPE0, ASCASL,
"SCASW", LTYPE0, ASCASW,
"SETCC", LTYPE1, ASETCC,
"SETCS", LTYPE1, ASETCS,
"SETEQ", LTYPE1, ASETEQ,
"SETGE", LTYPE1, ASETGE,
"SETGT", LTYPE1, ASETGT,
"SETHI", LTYPE1, ASETHI,
"SETLE", LTYPE1, ASETLE,
"SETLS", LTYPE1, ASETLS,
"SETLT", LTYPE1, ASETLT,
"SETMI", LTYPE1, ASETMI,
"SETNE", LTYPE1, ASETNE,
"SETOC", LTYPE1, ASETOC,
"SETOS", LTYPE1, ASETOS,
"SETPC", LTYPE1, ASETPC,
"SETPL", LTYPE1, ASETPL,
"SETPS", LTYPE1, ASETPS,
"CDQ", LTYPE0, ACDQ,
"CWD", LTYPE0, ACWD,
"SHLB", LTYPE3, ASHLB,
"SHLL", LTYPES, ASHLL,
"SHLW", LTYPES, ASHLW,
"SHRB", LTYPE3, ASHRB,
"SHRL", LTYPES, ASHRL,
"SHRW", LTYPES, ASHRW,
"STC", LTYPE0, ASTC,
"STD", LTYPE0, ASTD,
"STI", LTYPE0, ASTI,
"STOSB", LTYPE0, ASTOSB,
"STOSL", LTYPE0, ASTOSL,
"STOSW", LTYPE0, ASTOSW,
"SUBB", LTYPE3, ASUBB,
"SUBL", LTYPE3, ASUBL,
"SUBW", LTYPE3, ASUBW,
"SYSCALL", LTYPE0, ASYSCALL,
"TESTB", LTYPE3, ATESTB,
"TESTL", LTYPE3, ATESTL,
"TESTW", LTYPE3, ATESTW,
"TEXT", LTYPET, ATEXT,
"VERR", LTYPE2, AVERR,
"VERW", LTYPE2, AVERW,
"WAIT", LTYPE0, AWAIT,
"WORD", LTYPE2, AWORD,
"XCHGB", LTYPE3, AXCHGB,
"XCHGL", LTYPE3, AXCHGL,
"XCHGW", LTYPE3, AXCHGW,
"XLAT", LTYPE2, AXLAT,
"XORB", LTYPE3, AXORB,
"XORL", LTYPE3, AXORL,
"XORW", LTYPE3, AXORW,
"FMOVB", LTYPE3, AFMOVB,
"FMOVBP", LTYPE3, AFMOVBP,
"FMOVD", LTYPE3, AFMOVD,
"FMOVDP", LTYPE3, AFMOVDP,
"FMOVF", LTYPE3, AFMOVF,
"FMOVFP", LTYPE3, AFMOVFP,
"FMOVL", LTYPE3, AFMOVL,
"FMOVLP", LTYPE3, AFMOVLP,
"FMOVV", LTYPE3, AFMOVV,
"FMOVVP", LTYPE3, AFMOVVP,
"FMOVW", LTYPE3, AFMOVW,
"FMOVWP", LTYPE3, AFMOVWP,
"FMOVX", LTYPE3, AFMOVX,
"FMOVXP", LTYPE3, AFMOVXP,
"FCOMB", LTYPE3, AFCOMB,
"FCOMBP", LTYPE3, AFCOMBP,
"FCOMD", LTYPE3, AFCOMD,
"FCOMDP", LTYPE3, AFCOMDP,
"FCOMDPP", LTYPE3, AFCOMDPP,
"FCOMF", LTYPE3, AFCOMF,
"FCOMFP", LTYPE3, AFCOMFP,
"FCOML", LTYPE3, AFCOML,
"FCOMLP", LTYPE3, AFCOMLP,
"FCOMW", LTYPE3, AFCOMW,
"FCOMWP", LTYPE3, AFCOMWP,
"FUCOM", LTYPE3, AFUCOM,
"FUCOMP", LTYPE3, AFUCOMP,
"FUCOMPP", LTYPE3, AFUCOMPP,
"FADDW", LTYPE3, AFADDW,
"FADDL", LTYPE3, AFADDL,
"FADDF", LTYPE3, AFADDF,
"FADDD", LTYPE3, AFADDD,
"FADDDP", LTYPE3, AFADDDP,
"FSUBDP", LTYPE3, AFSUBDP,
"FSUBW", LTYPE3, AFSUBW,
"FSUBL", LTYPE3, AFSUBL,
"FSUBF", LTYPE3, AFSUBF,
"FSUBD", LTYPE3, AFSUBD,
"FSUBRDP", LTYPE3, AFSUBRDP,
"FSUBRW", LTYPE3, AFSUBRW,
"FSUBRL", LTYPE3, AFSUBRL,
"FSUBRF", LTYPE3, AFSUBRF,
"FSUBRD", LTYPE3, AFSUBRD,
"FMULDP", LTYPE3, AFMULDP,
"FMULW", LTYPE3, AFMULW,
"FMULL", LTYPE3, AFMULL,
"FMULF", LTYPE3, AFMULF,
"FMULD", LTYPE3, AFMULD,
"FDIVDP", LTYPE3, AFDIVDP,
"FDIVW", LTYPE3, AFDIVW,
"FDIVL", LTYPE3, AFDIVL,
"FDIVF", LTYPE3, AFDIVF,
"FDIVD", LTYPE3, AFDIVD,
"FDIVRDP", LTYPE3, AFDIVRDP,
"FDIVRW", LTYPE3, AFDIVRW,
"FDIVRL", LTYPE3, AFDIVRL,
"FDIVRF", LTYPE3, AFDIVRF,
"FDIVRD", LTYPE3, AFDIVRD,
"FXCHD", LTYPE3, AFXCHD,
"FFREE", LTYPE1, AFFREE,
"FLDCW", LTYPE2, AFLDCW,
"FLDENV", LTYPE1, AFLDENV,
"FRSTOR", LTYPE2, AFRSTOR,
"FSAVE", LTYPE1, AFSAVE,
"FSTCW", LTYPE1, AFSTCW,
"FSTENV", LTYPE1, AFSTENV,
"FSTSW", LTYPE1, AFSTSW,
"F2XM1", LTYPE0, AF2XM1,
"FABS", LTYPE0, AFABS,
"FCHS", LTYPE0, AFCHS,
"FCLEX", LTYPE0, AFCLEX,
"FCOS", LTYPE0, AFCOS,
"FDECSTP", LTYPE0, AFDECSTP,
"FINCSTP", LTYPE0, AFINCSTP,
"FINIT", LTYPE0, AFINIT,
"FLD1", LTYPE0, AFLD1,
"FLDL2E", LTYPE0, AFLDL2E,
"FLDL2T", LTYPE0, AFLDL2T,
"FLDLG2", LTYPE0, AFLDLG2,
"FLDLN2", LTYPE0, AFLDLN2,
"FLDPI", LTYPE0, AFLDPI,
"FLDZ", LTYPE0, AFLDZ,
"FNOP", LTYPE0, AFNOP,
"FPATAN", LTYPE0, AFPATAN,
"FPREM", LTYPE0, AFPREM,
"FPREM1", LTYPE0, AFPREM1,
"FPTAN", LTYPE0, AFPTAN,
"FRNDINT", LTYPE0, AFRNDINT,
"FSCALE", LTYPE0, AFSCALE,
"FSIN", LTYPE0, AFSIN,
"FSINCOS", LTYPE0, AFSINCOS,
"FSQRT", LTYPE0, AFSQRT,
"FTST", LTYPE0, AFTST,
"FXAM", LTYPE0, AFXAM,
"FXTRACT", LTYPE0, AFXTRACT,
"FYL2X", LTYPE0, AFYL2X,
"FYL2XP1", LTYPE0, AFYL2XP1,
0
};
void
cinit(void)
{
Sym *s;
int i;
nullgen.sym = S;
nullgen.offset = 0;
if(FPCHIP)
nullgen.dval = 0;
for(i=0; i<sizeof(nullgen.sval); i++)
nullgen.sval[i] = 0;
nullgen.type = D_NONE;
nullgen.index = D_NONE;
nullgen.scale = 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);
if(s->type != LNAME)
yyerror("double initialization %s", itab[i].name);
s->type = itab[i].type;
s->value = itab[i].value;
}
pathname = allocn(pathname, 0, 100);
if(getwd(pathname, 99) == 0) {
pathname = allocn(pathname, 100, 900);
if(getwd(pathname, 999) == 0)
strcpy(pathname, "/???");
}
}
void
checkscale(int scale)
{
switch(scale) {
case 1:
case 2:
case 4:
case 8:
return;
}
yyerror("scale must be 1248: %d", scale);
}
void
syminit(Sym *s)
{
s->type = LNAME;
s->value = 0;
}
void
cclean(void)
{
Gen2 g2;
g2.from = nullgen;
g2.to = nullgen;
outcode(AEND, &g2);
Bflush(&obuf);
}
void
zname(char *n, int t, int s)
{
Bputc(&obuf, ANAME); /* as(2) */
Bputc(&obuf, ANAME>>8);
Bputc(&obuf, t); /* type */
Bputc(&obuf, s); /* sym */
while(*n) {
Bputc(&obuf, *n);
n++;
}
Bputc(&obuf, 0);
}
void
zaddr(Gen *a, int s)
{
int32 l;
int i, t;
char *n;
Ieee e;
t = 0;
if(a->index != D_NONE || a->scale != 0)
t |= T_INDEX;
if(a->offset != 0)
t |= T_OFFSET;
if(s != 0)
t |= T_SYM;
switch(a->type) {
default:
t |= T_TYPE;
break;
case D_FCONST:
t |= T_FCONST;
break;
case D_CONST2:
t |= T_OFFSET|T_OFFSET2;
break;
case D_SCONST:
t |= T_SCONST;
break;
case D_NONE:
break;
}
Bputc(&obuf, t);
if(t & T_INDEX) { /* implies index, scale */
Bputc(&obuf, a->index);
Bputc(&obuf, a->scale);
}
if(t & T_OFFSET) { /* implies offset */
l = a->offset;
Bputc(&obuf, l);
Bputc(&obuf, l>>8);
Bputc(&obuf, l>>16);
Bputc(&obuf, l>>24);
}
if(t & T_OFFSET2) {
l = a->offset2;
Bputc(&obuf, l);
Bputc(&obuf, l>>8);
Bputc(&obuf, l>>16);
Bputc(&obuf, l>>24);
}
if(t & T_SYM) /* implies sym */
Bputc(&obuf, s);
if(t & T_FCONST) {
ieeedtod(&e, a->dval);
l = e.l;
Bputc(&obuf, l);
Bputc(&obuf, l>>8);
Bputc(&obuf, l>>16);
Bputc(&obuf, l>>24);
l = e.h;
Bputc(&obuf, l);
Bputc(&obuf, l>>8);
Bputc(&obuf, l>>16);
Bputc(&obuf, l>>24);
return;
}
if(t & T_SCONST) {
n = a->sval;
for(i=0; i<NSNAME; i++) {
Bputc(&obuf, *n);
n++;
}
return;
}
if(t & T_TYPE)
Bputc(&obuf, a->type);
}
void
outcode(int a, Gen2 *g2)
{
int sf, st, t;
Sym *s;
if(pass == 1)
goto out;
jackpot:
sf = 0;
s = g2->from.sym;
while(s != S) {
sf = s->sym;
if(sf < 0 || sf >= NSYM)
sf = 0;
t = g2->from.type;
if(t == D_ADDR)
t = g2->from.index;
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->to.sym;
while(s != S) {
st = s->sym;
if(st < 0 || st >= NSYM)
st = 0;
t = g2->to.type;
if(t == D_ADDR)
t = g2->to.index;
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, a>>8);
Bputc(&obuf, lineno);
Bputc(&obuf, lineno>>8);
Bputc(&obuf, lineno>>16);
Bputc(&obuf, lineno>>24);
zaddr(&g2->from, sf);
zaddr(&g2->to, 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;
/* on windows skip drive specifier in pathname */
if(systemtype(Windows) && p && p[1] == ':'){
p += 2;
c = *p;
}
if(p && p[0] != c && h->offset == 0 && pathname){
/* on windows skip drive specifier in pathname */
if(systemtype(Windows) && pathname[1] == ':') {
op = p;
p = pathname+2;
c = *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 "/" */
*p = '/'; /* don't emit "\" on windows */
}
q++;
} else {
n = strlen(p);
q = 0;
}
if(n) {
Bputc(&obuf, ANAME);
Bputc(&obuf, ANAME>>8);
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, AHISTORY>>8);
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"
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