ref: 5743b4623e800b8089c254c7997988344ddef2a2
dir: /sys/src/cmd/qa/lex.c/
#define EXTERN
#include "a.h"
#include "y.tab.h"
#include <ctype.h>
void
main(int argc, char *argv[])
{
char *p;
int nout, nproc, status, i, c;
thechar = 'q';
thestring = "power";
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) {
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, *p;
int i, of;
ofile = strdup(file);
p = utfrrune(ofile, pathchar());
if(p) {
include[0] = ofile;
*p++ = 0;
} else
p = ofile;
if(outfile == 0) {
if(p){
outfile = p;
p = utfrrune(outfile, '.');
if(p)
if(p[1] == 's' && p[2] == 0)
p[0] = 0;
outfile = smprint("%s.%C", outfile, thechar);
} else
outfile = "/dev/null";
}
p = getenv("INCLUDE");
if(p) {
setinclude(p);
} else {
if(systemtype(Plan9))
setinclude(smprint("/%s/include", thestring));
}
of = mycreat(outfile, 0664);
if(of < 0) {
yyerror("%Ca: cannot create %s", thechar, outfile);
errorexit();
}
Binit(&obuf, of, OWRITE);
pass = 1;
nosched = 0;
pinit(file);
for(i=0; i<nDlist; i++)
dodefine(Dlist[i]);
yyparse();
if(nerrors) {
cclean();
return nerrors;
}
pass = 2;
nosched = 0;
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,
"LR", LLR, D_LR,
"CTR", LCTR, D_CTR,
"XER", LSPREG, D_XER,
"MSR", LMSR, D_MSR,
"FPSCR", LFPSCR, D_FPSCR,
"SPR", LSPR, D_SPR,
"DCR", LDCR, D_DCR,
"SEG", LSEG, D_SREG,
"CR", LCR, 0,
"CR0", LCREG, 0,
"CR1", LCREG, 1,
"CR2", LCREG, 2,
"CR3", LCREG, 3,
"CR4", LCREG, 4,
"CR5", LCREG, 5,
"CR6", LCREG, 6,
"CR7", LCREG, 7,
"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,
"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,
"CREQV", LCROP, ACREQV,
"CRXOR", LCROP, ACRXOR,
"CRAND", LCROP, ACRAND,
"CROR", LCROP, ACROR,
"CRANDN", LCROP, ACRANDN,
"CRORN", LCROP, ACRORN,
"CRNAND", LCROP, ACRNAND,
"CRNOR", LCROP, ACRNOR,
"ADD", LADDW, AADD,
"ADDV", LADDW, AADDV,
"ADDCC", LADDW, AADDCC,
"ADDVCC", LADDW, AADDVCC,
"ADDC", LADDW, AADDC,
"ADDCV", LADDW, AADDCV,
"ADDCCC", LADDW, AADDCCC,
"ADDCVCC", LADDW, AADDCVCC,
"ADDE", LLOGW, AADDE,
"ADDEV", LLOGW, AADDEV,
"ADDECC", LLOGW, AADDECC,
"ADDEVCC", LLOGW, AADDEVCC,
"ADDME", LABS, AADDME,
"ADDMEV", LABS, AADDMEV,
"ADDMECC", LABS, AADDMECC,
"ADDMEVCC", LABS, AADDMEVCC,
"ADDZE", LABS, AADDZE,
"ADDZEV", LABS, AADDZEV,
"ADDZECC", LABS, AADDZECC,
"ADDZEVCC", LABS, AADDZEVCC,
"SUB", LADDW, ASUB,
"SUBV", LADDW, ASUBV,
"SUBCC", LADDW, ASUBCC,
"SUBVCC", LADDW, ASUBVCC,
"SUBE", LLOGW, ASUBE,
"SUBECC", LLOGW, ASUBECC,
"SUBEV", LLOGW, ASUBEV,
"SUBEVCC", LLOGW, ASUBEVCC,
"SUBC", LADDW, ASUBC,
"SUBCCC", LADDW, ASUBCCC,
"SUBCV", LADDW, ASUBCV,
"SUBCVCC", LADDW, ASUBCVCC,
"SUBME", LABS, ASUBME,
"SUBMEV", LABS, ASUBMEV,
"SUBMECC", LABS, ASUBMECC,
"SUBMEVCC", LABS, ASUBMEVCC,
"SUBZE", LABS, ASUBZE,
"SUBZEV", LABS, ASUBZEV,
"SUBZECC", LABS, ASUBZECC,
"SUBZEVCC", LABS, ASUBZEVCC,
"AND", LADDW, AAND,
"ANDCC", LADDW, AANDCC, /* includes andil & andiu */
"ANDN", LLOGW, AANDN,
"ANDNCC", LLOGW, AANDNCC,
"EQV", LLOGW, AEQV,
"EQVCC", LLOGW, AEQVCC,
"NAND", LLOGW, ANAND,
"NANDCC", LLOGW, ANANDCC,
"NOR", LLOGW, ANOR,
"NORCC", LLOGW, ANORCC,
"OR", LADDW, AOR, /* includes oril & oriu */
"ORCC", LADDW, AORCC,
"ORN", LLOGW, AORN,
"ORNCC", LLOGW, AORNCC,
"XOR", LADDW, AXOR, /* includes xoril & xoriu */
"XORCC", LLOGW, AXORCC,
"EXTSB", LABS, AEXTSB,
"EXTSBCC", LABS, AEXTSBCC,
"EXTSH", LABS, AEXTSH,
"EXTSHCC", LABS, AEXTSHCC,
"CNTLZW", LABS, ACNTLZW,
"CNTLZWCC", LABS, ACNTLZWCC,
"RLWMI", LRLWM, ARLWMI,
"RLWMICC", LRLWM, ARLWMICC,
"RLWNM", LRLWM, ARLWNM,
"RLWNMCC", LRLWM, ARLWNMCC,
"SLW", LSHW, ASLW,
"SLWCC", LSHW, ASLWCC,
"SRW", LSHW, ASRW,
"SRWCC", LSHW, ASRWCC,
"SRAW", LSHW, ASRAW,
"SRAWCC", LSHW, ASRAWCC,
"BR", LBRA, ABR,
"BC", LBRA, ABC,
"BCL", LBRA, ABC,
"BL", LBRA, ABL,
"BEQ", LBRA, ABEQ,
"BNE", LBRA, ABNE,
"BGT", LBRA, ABGT,
"BGE", LBRA, ABGE,
"BLT", LBRA, ABLT,
"BLE", LBRA, ABLE,
"BVC", LBRA, ABVC,
"BVS", LBRA, ABVS,
"CMP", LCMP, ACMP,
"CMPU", LCMP, ACMPU,
"DIVW", LLOGW, ADIVW,
"DIVWV", LLOGW, ADIVWV,
"DIVWCC", LLOGW, ADIVWCC,
"DIVWVCC", LLOGW, ADIVWVCC,
"DIVWU", LLOGW, ADIVWU,
"DIVWUV", LLOGW, ADIVWUV,
"DIVWUCC", LLOGW, ADIVWUCC,
"DIVWUVCC", LLOGW, ADIVWUVCC,
"FABS", LFCONV, AFABS,
"FABSCC", LFCONV, AFABSCC,
"FNEG", LFCONV, AFNEG,
"FNEGCC", LFCONV, AFNEGCC,
"FNABS", LFCONV, AFNABS,
"FNABSCC", LFCONV, AFNABSCC,
"FADD", LFADD, AFADD,
"FADDCC", LFADD, AFADDCC,
"FSUB", LFADD, AFSUB,
"FSUBCC", LFADD, AFSUBCC,
"FMUL", LFADD, AFMUL,
"FMULCC", LFADD, AFMULCC,
"FDIV", LFADD, AFDIV,
"FDIVCC", LFADD, AFDIVCC,
"FRSP", LFCONV, AFRSP,
"FRSPCC", LFCONV, AFRSPCC,
"FMADD", LFMA, AFMADD,
"FMADDCC", LFMA, AFMADDCC,
"FMSUB", LFMA, AFMSUB,
"FMSUBCC", LFMA, AFMSUBCC,
"FNMADD", LFMA, AFNMADD,
"FNMADDCC", LFMA, AFNMADDCC,
"FNMSUB", LFMA, AFNMSUB,
"FNMSUBCC", LFMA, AFNMSUBCC,
"FMADDS", LFMA, AFMADDS,
"FMADDSCC", LFMA, AFMADDSCC,
"FMSUBS", LFMA, AFMSUBS,
"FMSUBSCC", LFMA, AFMSUBSCC,
"FNMADDS", LFMA, AFNMADDS,
"FNMADDSCC", LFMA, AFNMADDSCC,
"FNMSUBS", LFMA, AFNMSUBS,
"FNMSUBSCC", LFMA, AFNMSUBSCC,
"FCMPU", LFCMP, AFCMPU,
"FCMPO", LFCMP, AFCMPO,
"MTFSB0", LMTFSB, AMTFSB0,
"MTFSB1", LMTFSB, AMTFSB1,
"FMOVD", LFMOV, AFMOVD,
"FMOVS", LFMOV, AFMOVS,
"FMOVDCC", LFCONV, AFMOVDCC, /* fmr. */
"GLOBL", LTEXT, AGLOBL,
"MOVB", LMOVB, AMOVB,
"MOVBZ", LMOVB, AMOVBZ,
"MOVBU", LMOVB, AMOVBU,
"MOVBZU", LMOVB, AMOVBZU,
"MOVH", LMOVB, AMOVH,
"MOVHZ", LMOVB, AMOVHZ,
"MOVHU", LMOVB, AMOVHU,
"MOVHZU", LMOVB, AMOVHZU,
"MOVHBR", LXMV, AMOVHBR,
"MOVWBR", LXMV, AMOVWBR,
"MOVW", LMOVW, AMOVW,
"MOVWU", LMOVW, AMOVWU,
"MOVMW", LMOVMW, AMOVMW,
"MOVFL", LMOVW, AMOVFL,
"MULLW", LADDW, AMULLW, /* includes multiply immediate 10-139 */
"MULLWV", LLOGW, AMULLWV,
"MULLWCC", LLOGW, AMULLWCC,
"MULLWVCC", LLOGW, AMULLWVCC,
"MULHW", LLOGW, AMULHW,
"MULHWCC", LLOGW, AMULHWCC,
"MULHWU", LLOGW, AMULHWU,
"MULHWUCC", LLOGW, AMULHWUCC,
"NEG", LABS, ANEG,
"NEGV", LABS, ANEGV,
"NEGCC", LABS, ANEGCC,
"NEGVCC", LABS, ANEGVCC,
"NOP", LNOP, ANOP, /* ori 0,0,0 */
"SYSCALL", LNOP, ASYSCALL,
"RETURN", LRETRN, ARETURN,
"RFI", LRETRN, ARFI,
"RFCI", LRETRN, ARFCI,
"DATA", LDATA, ADATA,
"END", LEND, AEND,
"TEXT", LTEXT, ATEXT,
/* IBM powerpc embedded */
"MACCHW", LMA, AMACCHW,
"MACCHWCC", LMA, AMACCHWCC,
"MACCHWS", LMA, AMACCHWS,
"MACCHWSCC", LMA, AMACCHWSCC,
"MACCHWSU", LMA, AMACCHWSU,
"MACCHWSUCC", LMA, AMACCHWSUCC,
"MACCHWSUV", LMA, AMACCHWSUV,
"MACCHWSUVCC", LMA, AMACCHWSUVCC,
"MACCHWSV", LMA, AMACCHWSV,
"MACCHWSVCC", LMA, AMACCHWSVCC,
"MACCHWU", LMA, AMACCHWU,
"MACCHWUCC", LMA, AMACCHWUCC,
"MACCHWUV", LMA, AMACCHWUV,
"MACCHWUVCC", LMA, AMACCHWUVCC,
"MACCHWV", LMA, AMACCHWV,
"MACCHWVCC", LMA, AMACCHWVCC,
"MACHHW", LMA, AMACHHW,
"MACHHWCC", LMA, AMACHHWCC,
"MACHHWS", LMA, AMACHHWS,
"MACHHWSCC", LMA, AMACHHWSCC,
"MACHHWSU", LMA, AMACHHWSU,
"MACHHWSUCC", LMA, AMACHHWSUCC,
"MACHHWSUV", LMA, AMACHHWSUV,
"MACHHWSUVCC", LMA, AMACHHWSUVCC,
"MACHHWSV", LMA, AMACHHWSV,
"MACHHWSVCC", LMA, AMACHHWSVCC,
"MACHHWU", LMA, AMACHHWU,
"MACHHWUCC", LMA, AMACHHWUCC,
"MACHHWUV", LMA, AMACHHWUV,
"MACHHWUVCC", LMA, AMACHHWUVCC,
"MACHHWV", LMA, AMACHHWV,
"MACHHWVCC", LMA, AMACHHWVCC,
"MACLHW", LMA, AMACLHW,
"MACLHWCC", LMA, AMACLHWCC,
"MACLHWS", LMA, AMACLHWS,
"MACLHWSCC", LMA, AMACLHWSCC,
"MACLHWSU", LMA, AMACLHWSU,
"MACLHWSUCC", LMA, AMACLHWSUCC,
"MACLHWSUV", LMA, AMACLHWSUV,
"MACLHWSUVCC", LMA, AMACLHWSUVCC,
"MACLHWSV", LMA, AMACLHWSV,
"MACLHWSVCC", LMA, AMACLHWSVCC,
"MACLHWU", LMA, AMACLHWU,
"MACLHWUCC", LMA, AMACLHWUCC,
"MACLHWUV", LMA, AMACLHWUV,
"MACLHWUVCC", LMA, AMACLHWUVCC,
"MACLHWV", LMA, AMACLHWV,
"MACLHWVCC", LMA, AMACLHWVCC,
"MULCHW", LLOGW, AMULCHW,
"MULCHWCC", LLOGW, AMULCHWCC,
"MULCHWU", LLOGW, AMULCHWU,
"MULCHWUCC", LLOGW, AMULCHWUCC,
"MULHHW", LLOGW, AMULHHW,
"MULHHWCC", LLOGW, AMULHHWCC,
"MULHHWU", LLOGW, AMULHHWU,
"MULHHWUCC", LLOGW, AMULHHWUCC,
"MULLHW", LLOGW, AMULLHW,
"MULLHWCC", LLOGW, AMULLHWCC,
"MULLHWU", LLOGW, AMULLHWU,
"MULLHWUCC", LLOGW, AMULLHWUCC,
"NMACCHW", LMA, ANMACCHW,
"NMACCHWCC", LMA, ANMACCHWCC,
"NMACCHWS", LMA, ANMACCHWS,
"NMACCHWSCC", LMA, ANMACCHWSCC,
"NMACCHWSV", LMA, ANMACCHWSV,
"NMACCHWSVCC", LMA, ANMACCHWSVCC,
"NMACCHWV", LMA, ANMACCHWV,
"NMACCHWVCC", LMA, ANMACCHWVCC,
"NMACHHW", LMA, ANMACHHW,
"NMACHHWCC", LMA, ANMACHHWCC,
"NMACHHWS", LMA, ANMACHHWS,
"NMACHHWSCC", LMA, ANMACHHWSCC,
"NMACHHWSV", LMA, ANMACHHWSV,
"NMACHHWSVCC", LMA, ANMACHHWSVCC,
"NMACHHWV", LMA, ANMACHHWV,
"NMACHHWVCC", LMA, ANMACHHWVCC,
"NMACLHW", LMA, ANMACLHW,
"NMACLHWCC", LMA, ANMACLHWCC,
"NMACLHWS", LMA, ANMACLHWS,
"NMACLHWSCC", LMA, ANMACLHWSCC,
"NMACLHWSV", LMA, ANMACLHWSV,
"NMACLHWSVCC", LMA, ANMACLHWSVCC,
"NMACLHWV", LMA, ANMACLHWV,
"NMACLHWVCC", LMA, ANMACLHWVCC,
/* optional on 32-bit */
"FRES", LFCONV, AFRES,
"FRESCC", LFCONV, AFRESCC,
"FRSQRTE", LFCONV, AFRSQRTE,
"FRSQRTECC", LFCONV, AFRSQRTECC,
"FSEL", LFMA, AFSEL,
"FSELCC", LFMA, AFSELCC,
"FSQRT", LFCONV, AFSQRT,
"FSQRTCC", LFCONV, AFSQRTCC,
"FSQRTS", LFCONV, AFSQRTS,
"FSQRTSCC", LFCONV, AFSQRTSCC,
/* parallel, cross, and secondary (fp2) */
"FPSEL", LFMA, AFPSEL,
"FPMUL", LFADD, AFPMUL,
"FXMUL", LFADD, AFXMUL,
"FXPMUL", LFADD, AFXPMUL,
"FXSMUL", LFADD, AFXSMUL,
"FPADD", LFADD, AFPADD,
"FPSUB", LFADD, AFPSUB,
"FPRE", LFCONV, AFPRE,
"FPRSQRTE", LFCONV, AFPRSQRTE,
"FPMADD", LFMA, AFPMADD,
"FXMADD", LFMA, AFXMADD,
"FXCPMADD", LFMA, AFXCPMADD,
"FXCSMADD", LFMA, AFXCSMADD,
"FPNMADD", LFMA, AFPNMADD,
"FXNMADD", LFMA, AFXNMADD,
"FXCPNMADD", LFMA, AFXCPNMADD,
"FXCSNMADD", LFMA, AFXCSNMADD,
"FPMSUB", LFMA, AFPMSUB,
"FXMSUB", LFMA, AFXMSUB,
"FXCPMSUB", LFMA, AFXCPMSUB,
"FXCSMSUB", LFMA, AFXCSMSUB,
"FPNMSUB", LFMA, AFPNMSUB,
"FXNMSUB", LFMA, AFXNMSUB,
"FXCPNMSUB", LFMA, AFXCPNMSUB,
"FXCSNMSUB", LFMA, AFXCSNMSUB,
"FPABS", LFCONV, AFPABS,
"FPNEG", LFCONV, AFPNEG,
"FPRSP", LFCONV, AFPRSP,
"FPNABS", LFCONV, AFPNABS,
"FSMOVD", LFMOV, AFSMOVD,
"FSCMP", LFCMP, AFSCMP,
"FSABS", LFCONV, AFSABS,
"FSNEG", LFCONV, AFSNEG,
"FSNABS", LFCONV, AFSNABS,
"FPCTIW", LFCONV, AFPCTIW,
"FPCTIWZ", LFCONV, AFPCTIWZ,
"FMOVSPD", LFCONV, AFMOVSPD,
"FMOVPSD", LFCONV, AFMOVPSD,
"FXCPNPMA", LFMA, AFXCPNPMA,
"FXCSNPMA", LFMA, AFXCSNPMA,
"FXCPNSMA", LFMA, AFXCPNSMA,
"FXCSNSMA", LFMA, AFXCSNSMA,
"FXCXNPMA", LFMA, AFXCXNPMA,
"FXCXNSMA", LFMA, AFXCXNSMA,
"FXCXMA", LFMA, AFXCXMA,
"FXCXNMS", LFMA, AFXCXNMS,
/* parallel, cross, and secondary load and store (fp2) */
"FSMOVS", LFMOVX, AFSMOVS,
"FSMOVSU", LFMOVX, AFSMOVSU,
"FSMOVD", LFMOVX, AFSMOVD,
"FSMOVDU", LFMOVX, AFSMOVDU,
"FXMOVS", LFMOVX, AFXMOVS,
"FXMOVSU", LFMOVX, AFXMOVSU,
"FXMOVD", LFMOVX, AFXMOVD,
"FXMOVDU", LFMOVX, AFXMOVDU,
"FPMOVS", LFMOVX, AFPMOVS,
"FPMOVSU", LFMOVX, AFPMOVSU,
"FPMOVD", LFMOVX, AFPMOVD,
"FPMOVDU", LFMOVX, AFPMOVDU,
"FPMOVIW", LFMOVX, AFPMOVIW,
"AFMOVSPD", LFMOV, AFMOVSPD,
"AFMOVPSD", LFMOV, AFMOVPSD,
/* special instructions */
"DCBF", LXOP, ADCBF,
"DCBI", LXOP, ADCBI,
"DCBST", LXOP, ADCBST,
"DCBT", LXOP, ADCBT,
"DCBTST", LXOP, ADCBTST,
"DCBZ", LXOP, ADCBZ,
"ICBI", LXOP, AICBI,
"ECIWX", LXLD, AECIWX,
"ECOWX", LXST, AECOWX,
"LWAR", LXLD, ALWAR,
"STWCCC", LXST, ASTWCCC,
"EIEIO", LRETRN, AEIEIO,
"TLBIE", LNOP, ATLBIE,
"LSW", LXLD, ALSW,
"STSW", LXST, ASTSW,
"ISYNC", LRETRN, AISYNC,
"SYNC", LRETRN, ASYNC,
/* "TW", LADDW, ATW,*/
"WORD", LWORD, AWORD,
"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;
nullgen.xreg = 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;
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;
}
void
cclean(void)
{
outcode(AEND, &nullgen, NREG, &nullgen);
Bflush(&obuf);
}
void
zname(char *n, int t, int s)
{
Bputc(&obuf, ANAME);
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)
{
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_CREG:
case D_FPSCR:
case D_MSR:
case D_SREG:
case D_OPT:
break;
case D_DCR:
case D_SPR:
case D_OREG:
case D_CONST:
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;
}
}
int
outsim(Gen *g)
{
Sym *s;
int sno, t;
s = g->sym;
if(s == S)
return 0;
sno = s->sym;
if(sno < 0 || sno >= NSYM)
sno = 0;
t = g->name;
if(h[sno].type == t && h[sno].sym == s)
return sno;
zname(s->name, t, sym);
s->sym = sym;
h[sym].sym = s;
h[sym].type = t;
sno = sym;
sym++;
if(sym >= NSYM)
sym = 1;
return sno;
}
void
outcode(int a, Gen *g1, int reg, Gen *g2)
{
int sf, st;
if(a != AGLOBL && a != ADATA)
pc++;
if(pass == 1)
return;
if(g1->xreg != NREG) {
if(reg != NREG || g2->xreg != NREG)
yyerror("bad addressing modes");
reg = g1->xreg;
} else
if(g2->xreg != NREG) {
if(reg != NREG)
yyerror("bad addressing modes");
reg = g2->xreg;
}
do {
sf = outsim(g1);
st = outsim(g2);
} while(sf != 0 && st == sf);
Bputc(&obuf, a);
Bputc(&obuf, a>>8);
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);
}
void
outgcode(int a, Gen *g1, int reg, Gen *g2, Gen *g3)
{
int s1, s2, s3, flag;
if(a != AGLOBL && a != ADATA)
pc++;
if(pass == 1)
return;
do {
s1 = outsim(g1);
s2 = outsim(g2);
s3 = outsim(g3);
} while(s1 && (s2 && s1 == s2 || s3 && s1 == s3) || s2 && (s3 && s2 == s3));
flag = 0;
if(g2->type != D_NONE)
flag = 0x40; /* flags extra operand */
Bputc(&obuf, a);
Bputc(&obuf, a>>8);
Bputc(&obuf, reg | nosched | flag);
Bputc(&obuf, lineno);
Bputc(&obuf, lineno>>8);
Bputc(&obuf, lineno>>16);
Bputc(&obuf, lineno>>24);
zaddr(g1, s1);
if(flag)
zaddr(g2, s2);
zaddr(g3, s3);
}
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, 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"