1490 lines
32 KiB
C
1490 lines
32 KiB
C
![]() |
#include "l.h"
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long OFFSET;
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/*
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long BADOFFSET = -1;
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if(OFFSET <= BADOFFSET && OFFSET+4 > BADOFFSET)\
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abort();\
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OFFSET += 4;\
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if(OFFSET == BADOFFSET)\
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abort();\
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OFFSET++;\
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*/
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#define LPUT(l) { \
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if (little) { \
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LLEPUT(l); \
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} else { \
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LBEPUT(l); \
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} \
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}
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#define LLEPUT(c)\
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{\
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cbp[0] = (c);\
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cbp[1] = (c)>>8;\
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cbp[2] = (c)>>16;\
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cbp[3] = (c)>>24;\
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cbp += 4;\
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cbc -= 4;\
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if(cbc <= 0)\
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cflush();\
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}
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#define LBEPUT(c)\
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{\
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cbp[0] = (c)>>24;\
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cbp[1] = (c)>>16;\
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cbp[2] = (c)>>8;\
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cbp[3] = (c);\
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cbp += 4;\
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cbc -= 4;\
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if(cbc <= 0)\
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cflush();\
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}
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#define HPUT(h) { \
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if (little) { \
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HLEPUT(h); \
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} else { \
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HBEPUT(h); \
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} \
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}
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#define HLEPUT(c)\
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{\
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cbp[0] = (c);\
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cbp[1] = (c)>>8;\
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cbp += 2;\
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cbc -= 2;\
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if(cbc <= 0)\
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cflush();\
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}
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#define HBEPUT(c)\
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{\
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cbp[0] = (c)>>8;\
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cbp[1] = (c);\
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cbp += 2;\
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cbc -= 2;\
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if(cbc <= 0)\
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cflush();\
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}
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#define CPUT(c)\
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{\
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cbp[0] = (c);\
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cbp++;\
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cbc--;\
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if(cbc <= 0)\
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cflush();\
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}
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void
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objput(long l) /* emit long in byte order appropriate to object machine */
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{
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LPUT(l);
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}
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void
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objhput(short s)
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{
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HPUT(s);
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}
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void
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lput(long l) /* emit long in big-endian byte order */
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{
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LBEPUT(l);
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}
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long
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entryvalue(void)
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{
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char *a;
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Sym *s;
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a = INITENTRY;
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if(*a >= '0' && *a <= '9')
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return atolwhex(a);
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s = lookup(a, 0);
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if(s->type == 0)
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return INITTEXT;
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if(s->type != STEXT && s->type != SLEAF)
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diag("entry not text: %s", s->name);
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return s->value;
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}
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void
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asmb(void)
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{
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Prog *p;
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long t, etext;
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Optab *o;
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if(debug['v'])
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Bprint(&bso, "%5.2f asm\n", cputime());
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Bflush(&bso);
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OFFSET = HEADR;
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seek(cout, OFFSET, 0);
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pc = INITTEXT;
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for(p = firstp; p != P; p = p->link) {
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if(p->as == ATEXT) {
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curtext = p;
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autosize = p->to.offset + 4;
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}
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if(p->pc != pc) {
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diag("phase error %lux sb %lux",
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p->pc, pc);
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if(!debug['a'])
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prasm(curp);
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pc = p->pc;
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}
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curp = p;
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o = oplook(p); /* could probably avoid this call */
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if(asmout(p, o, 0)) {
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p = p->link;
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pc += 4;
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}
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pc += o->size;
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}
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if(debug['a'])
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Bprint(&bso, "\n");
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Bflush(&bso);
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cflush();
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etext = INITTEXT + textsize;
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for(t = pc; t < etext; t += sizeof(buf)-100) {
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if(etext-t > sizeof(buf)-100)
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datblk(t, sizeof(buf)-100, 1);
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else
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datblk(t, etext-t, 1);
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}
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Bflush(&bso);
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cflush();
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curtext = P;
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switch(HEADTYPE) {
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case 0:
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case 4:
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OFFSET = rnd(HEADR+textsize, 4096);
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seek(cout, OFFSET, 0);
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break;
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case 1:
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case 2:
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case 3:
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case 5:
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case 6:
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OFFSET = HEADR+textsize;
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seek(cout, OFFSET, 0);
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break;
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}
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for(t = 0; t < datsize; t += sizeof(buf)-100) {
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if(datsize-t > sizeof(buf)-100)
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datblk(t, sizeof(buf)-100, 0);
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else
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datblk(t, datsize-t, 0);
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}
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symsize = 0;
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lcsize = 0;
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if(!debug['s']) {
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if(debug['v'])
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Bprint(&bso, "%5.2f sym\n", cputime());
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Bflush(&bso);
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switch(HEADTYPE) {
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case 0:
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case 4:
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OFFSET = rnd(HEADR+textsize, 4096)+datsize;
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seek(cout, OFFSET, 0);
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break;
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case 3:
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case 2:
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case 1:
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case 5:
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case 6:
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OFFSET = HEADR+textsize+datsize;
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seek(cout, OFFSET, 0);
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break;
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}
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if(!debug['s'])
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asmsym();
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if(debug['v'])
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Bprint(&bso, "%5.2f pc\n", cputime());
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Bflush(&bso);
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if(!debug['s'])
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asmlc();
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cflush();
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}
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if(debug['v'])
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Bprint(&bso, "%5.2f header\n", cputime());
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Bflush(&bso);
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OFFSET = 0;
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seek(cout, OFFSET, 0);
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switch(HEADTYPE) {
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case 0:
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lput(0x160L<<16); /* magic and sections */
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lput(0L); /* time and date */
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lput(rnd(HEADR+textsize, 4096)+datsize);
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lput(symsize); /* nsyms */
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lput((0x38L<<16)|7L); /* size of optional hdr and flags */
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lput((0413<<16)|0437L); /* magic and version */
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lput(rnd(HEADR+textsize, 4096)); /* sizes */
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lput(datsize);
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lput(bsssize);
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lput(entryvalue()); /* va of entry */
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lput(INITTEXT-HEADR); /* va of base of text */
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lput(INITDAT); /* va of base of data */
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lput(INITDAT+datsize); /* va of base of bss */
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lput(~0L); /* gp reg mask */
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lput(0L);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(~0L); /* gp value ?? */
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break;
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case 1:
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lput(0x160L<<16); /* magic and sections */
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lput(0L); /* time and date */
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lput(HEADR+textsize+datsize);
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lput(symsize); /* nsyms */
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lput((0x38L<<16)|7L); /* size of optional hdr and flags */
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lput((0407<<16)|0437L); /* magic and version */
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lput(textsize); /* sizes */
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lput(datsize);
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lput(bsssize);
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lput(entryvalue()); /* va of entry */
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lput(INITTEXT); /* va of base of text */
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lput(INITDAT); /* va of base of data */
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lput(INITDAT+datsize); /* va of base of bss */
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lput(~0L); /* gp reg mask */
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lput(lcsize);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(~0L); /* gp value ?? */
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lput(0L); /* complete mystery */
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break;
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case 2:
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if (little)
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t = 24;
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else
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t = 16;
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lput(((((4*t)+0)*t)+7)); /* magic */
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lput(textsize); /* sizes */
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lput(datsize);
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lput(bsssize);
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lput(symsize); /* nsyms */
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lput(entryvalue()); /* va of entry */
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lput(0L);
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lput(lcsize);
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break;
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case 3:
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lput((0x160L<<16)|3L); /* magic and sections */
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lput(time(0)); /* time and date */
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lput(HEADR+textsize+datsize);
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lput(symsize); /* nsyms */
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lput((0x38L<<16)|7L); /* size of optional hdr and flags */
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lput((0407<<16)|0437L); /* magic and version */
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lput(textsize); /* sizes */
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lput(datsize);
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lput(bsssize);
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lput(entryvalue()); /* va of entry */
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lput(INITTEXT); /* va of base of text */
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lput(INITDAT); /* va of base of data */
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lput(INITDAT+datsize); /* va of base of bss */
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lput(~0L); /* gp reg mask */
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lput(lcsize);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(~0L); /* gp value ?? */
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strnput(".text", 8); /* text segment */
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lput(INITTEXT); /* address */
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lput(INITTEXT);
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lput(textsize);
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lput(HEADR);
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lput(0L);
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lput(HEADR+textsize+datsize+symsize);
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lput(lcsize); /* line number size */
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lput(0x20L); /* flags */
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strnput(".data", 8); /* data segment */
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lput(INITDAT); /* address */
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lput(INITDAT);
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lput(datsize);
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lput(HEADR+textsize);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(0x40L); /* flags */
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strnput(".bss", 8); /* bss segment */
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lput(INITDAT+datsize); /* address */
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lput(INITDAT+datsize);
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lput(bsssize);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(0x80L); /* flags */
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break;
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case 4:
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lput((0x160L<<16)|3L); /* magic and sections */
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lput(time(0)); /* time and date */
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lput(rnd(HEADR+textsize, 4096)+datsize);
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lput(symsize); /* nsyms */
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lput((0x38L<<16)|7L); /* size of optional hdr and flags */
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lput((0413<<16)|01012L); /* magic and version */
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lput(textsize); /* sizes */
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lput(datsize);
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lput(bsssize);
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lput(entryvalue()); /* va of entry */
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lput(INITTEXT); /* va of base of text */
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lput(INITDAT); /* va of base of data */
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lput(INITDAT+datsize); /* va of base of bss */
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lput(~0L); /* gp reg mask */
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lput(lcsize);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(~0L); /* gp value ?? */
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strnput(".text", 8); /* text segment */
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lput(INITTEXT); /* address */
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lput(INITTEXT);
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lput(textsize);
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lput(HEADR);
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lput(0L);
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lput(HEADR+textsize+datsize+symsize);
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lput(lcsize); /* line number size */
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lput(0x20L); /* flags */
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strnput(".data", 8); /* data segment */
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lput(INITDAT); /* address */
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lput(INITDAT);
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lput(datsize);
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lput(rnd(HEADR+textsize, 4096)); /* sizes */
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lput(0L);
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lput(0L);
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lput(0L);
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lput(0x40L); /* flags */
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strnput(".bss", 8); /* bss segment */
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lput(INITDAT+datsize); /* address */
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lput(INITDAT+datsize);
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lput(bsssize);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(0L);
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lput(0x80L); /* flags */
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break;
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case 5:
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||
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/* first part of ELF is byte-wide parts, thus no byte-order issues */
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strnput("\177ELF", 4); /* e_ident */
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CPUT(1); /* class = 32 bit */
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CPUT(little? 1: 2); /* data: 1 = LSB, 2 = MSB */
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CPUT(1); /* version = 1 */
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||
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strnput("", 9); /* reserved for expansion */
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||
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/* entire remainder of ELF file is in target byte order */
|
||
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||
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/* file header part of ELF header */
|
||
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objhput(2); /* type = EXEC */
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||
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objhput(8); /* machine = MIPS */
|
||
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objput(1L); /* version = CURRENT */
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objput(entryvalue()); /* entry vaddr */
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||
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objput(52L); /* offset to first phdr */
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objput(0L); /* offset to first shdr */
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||
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objput(0L); /* flags (no MIPS flags defined) */
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||
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objhput(52); /* Ehdr size */
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||
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objhput(32); /* Phdr size */
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||
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objhput(3); /* # of Phdrs */
|
||
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objhput(0); /* Shdr size */
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||
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objhput(0); /* # of Shdrs */
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||
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objhput(0); /* Shdr string size */
|
||
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||
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/* "Program headers" - one per chunk of file to load */
|
||
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|
||
|
/*
|
||
|
* include ELF headers in text -- 8l doesn't,
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||
|
* but in theory it aids demand loading.
|
||
|
*/
|
||
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objput(1L); /* text: type = PT_LOAD */
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||
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objput(0L); /* file offset */
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||
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objput(INITTEXT-HEADR); /* vaddr */
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||
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objput(INITTEXT-HEADR); /* paddr */
|
||
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objput(HEADR+textsize); /* file size */
|
||
|
objput(HEADR+textsize); /* memory size */
|
||
|
objput(0x05L); /* protections = RX */
|
||
|
objput(0x1000L); /* page-align text off's & vaddrs */
|
||
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||
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objput(1L); /* data: type = PT_LOAD */
|
||
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objput(HEADR+textsize); /* file offset */
|
||
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objput(INITDAT); /* vaddr */
|
||
|
objput(INITDAT); /* paddr */
|
||
|
objput(datsize); /* file size */
|
||
|
objput(datsize+bsssize); /* memory size */
|
||
|
objput(0x06L); /* protections = RW */
|
||
|
if(INITDAT % 4096 == 0 && (HEADR + textsize) % 4096 == 0)
|
||
|
objput(0x1000L); /* page-align data off's & vaddrs */
|
||
|
else
|
||
|
objput(0L); /* do not claim alignment */
|
||
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|
||
|
objput(0L); /* P9 symbols: type = PT_NULL */
|
||
|
objput(HEADR+textsize+datsize); /* file offset */
|
||
|
objput(0L);
|
||
|
objput(0L);
|
||
|
objput(symsize); /* symbol table size */
|
||
|
objput(lcsize); /* line number size */
|
||
|
objput(0x04L); /* protections = R */
|
||
|
objput(0L); /* do not claim alignment */
|
||
|
break;
|
||
|
case 6:
|
||
|
break;
|
||
|
}
|
||
|
cflush();
|
||
|
}
|
||
|
|
||
|
void
|
||
|
strnput(char *s, int n)
|
||
|
{
|
||
|
for(; *s; s++){
|
||
|
CPUT(*s);
|
||
|
n--;
|
||
|
}
|
||
|
for(; n > 0; n--)
|
||
|
CPUT(0);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
cflush(void)
|
||
|
{
|
||
|
int n;
|
||
|
|
||
|
n = sizeof(buf.cbuf) - cbc;
|
||
|
if(n)
|
||
|
write(cout, buf.cbuf, n);
|
||
|
cbp = buf.cbuf;
|
||
|
cbc = sizeof(buf.cbuf);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
nopstat(char *f, Count *c)
|
||
|
{
|
||
|
if(c->outof)
|
||
|
Bprint(&bso, "%s delay %ld/%ld (%.2f)\n", f,
|
||
|
c->outof - c->count, c->outof,
|
||
|
(double)(c->outof - c->count)/c->outof);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
asmsym(void)
|
||
|
{
|
||
|
Prog *p;
|
||
|
Auto *a;
|
||
|
Sym *s;
|
||
|
int h;
|
||
|
|
||
|
s = lookup("etext", 0);
|
||
|
if(s->type == STEXT)
|
||
|
putsymb(s->name, 'T', s->value, s->version);
|
||
|
|
||
|
for(h=0; h<NHASH; h++)
|
||
|
for(s=hash[h]; s!=S; s=s->link)
|
||
|
switch(s->type) {
|
||
|
case SCONST:
|
||
|
putsymb(s->name, 'D', s->value, s->version);
|
||
|
continue;
|
||
|
|
||
|
case SSTRING:
|
||
|
putsymb(s->name, 'T', s->value, s->version);
|
||
|
continue;
|
||
|
|
||
|
case SDATA:
|
||
|
putsymb(s->name, 'D', s->value+INITDAT, s->version);
|
||
|
continue;
|
||
|
|
||
|
case SBSS:
|
||
|
putsymb(s->name, 'B', s->value+INITDAT, s->version);
|
||
|
continue;
|
||
|
|
||
|
case SFILE:
|
||
|
putsymb(s->name, 'f', s->value, s->version);
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
for(p=textp; p!=P; p=p->cond) {
|
||
|
s = p->from.sym;
|
||
|
if(s->type != STEXT && s->type != SLEAF)
|
||
|
continue;
|
||
|
|
||
|
/* filenames first */
|
||
|
for(a=p->to.autom; a; a=a->link)
|
||
|
if(a->type == D_FILE)
|
||
|
putsymb(a->asym->name, 'z', a->aoffset, 0);
|
||
|
else
|
||
|
if(a->type == D_FILE1)
|
||
|
putsymb(a->asym->name, 'Z', a->aoffset, 0);
|
||
|
|
||
|
if(s->type == STEXT)
|
||
|
putsymb(s->name, 'T', s->value, s->version);
|
||
|
else
|
||
|
putsymb(s->name, 'L', s->value, s->version);
|
||
|
|
||
|
/* frame, auto and param after */
|
||
|
putsymb(".frame", 'm', p->to.offset+4, 0);
|
||
|
for(a=p->to.autom; a; a=a->link)
|
||
|
if(a->type == D_AUTO)
|
||
|
putsymb(a->asym->name, 'a', -a->aoffset, 0);
|
||
|
else
|
||
|
if(a->type == D_PARAM)
|
||
|
putsymb(a->asym->name, 'p', a->aoffset, 0);
|
||
|
}
|
||
|
if(debug['v'] || debug['n'])
|
||
|
Bprint(&bso, "symsize = %lud\n", symsize);
|
||
|
Bflush(&bso);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
putsymb(char *s, int t, long v, int ver)
|
||
|
{
|
||
|
int i, f;
|
||
|
|
||
|
if(t == 'f')
|
||
|
s++;
|
||
|
LBEPUT(v);
|
||
|
if(ver)
|
||
|
t += 'a' - 'A';
|
||
|
CPUT(t+0x80); /* 0x80 is variable length */
|
||
|
|
||
|
if(t == 'Z' || t == 'z') {
|
||
|
CPUT(s[0]);
|
||
|
for(i=1; s[i] != 0 || s[i+1] != 0; i += 2) {
|
||
|
CPUT(s[i]);
|
||
|
CPUT(s[i+1]);
|
||
|
}
|
||
|
CPUT(0);
|
||
|
CPUT(0);
|
||
|
i++;
|
||
|
}
|
||
|
else {
|
||
|
for(i=0; s[i]; i++)
|
||
|
CPUT(s[i]);
|
||
|
CPUT(0);
|
||
|
}
|
||
|
symsize += 4 + 1 + i + 1;
|
||
|
|
||
|
if(debug['n']) {
|
||
|
if(t == 'z' || t == 'Z') {
|
||
|
Bprint(&bso, "%c %.8lux ", t, v);
|
||
|
for(i=1; s[i] != 0 || s[i+1] != 0; i+=2) {
|
||
|
f = ((s[i]&0xff) << 8) | (s[i+1]&0xff);
|
||
|
Bprint(&bso, "/%x", f);
|
||
|
}
|
||
|
Bprint(&bso, "\n");
|
||
|
return;
|
||
|
}
|
||
|
if(ver)
|
||
|
Bprint(&bso, "%c %.8lux %s<%d>\n", t, v, s, ver);
|
||
|
else
|
||
|
Bprint(&bso, "%c %.8lux %s\n", t, v, s);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#define MINLC 4
|
||
|
void
|
||
|
asmlc(void)
|
||
|
{
|
||
|
long oldpc, oldlc;
|
||
|
Prog *p;
|
||
|
long v, s;
|
||
|
|
||
|
oldpc = INITTEXT;
|
||
|
oldlc = 0;
|
||
|
for(p = firstp; p != P; p = p->link) {
|
||
|
if(p->line == oldlc || p->as == ATEXT || p->as == ANOP) {
|
||
|
if(p->as == ATEXT)
|
||
|
curtext = p;
|
||
|
if(debug['L'])
|
||
|
Bprint(&bso, "%6lux %P\n",
|
||
|
p->pc, p);
|
||
|
continue;
|
||
|
}
|
||
|
if(debug['L'])
|
||
|
Bprint(&bso, "\t\t%6ld", lcsize);
|
||
|
v = (p->pc - oldpc) / MINLC;
|
||
|
while(v) {
|
||
|
s = 127;
|
||
|
if(v < 127)
|
||
|
s = v;
|
||
|
CPUT(s+128); /* 129-255 +pc */
|
||
|
if(debug['L'])
|
||
|
Bprint(&bso, " pc+%ld*%d(%ld)", s, MINLC, s+128);
|
||
|
v -= s;
|
||
|
lcsize++;
|
||
|
}
|
||
|
s = p->line - oldlc;
|
||
|
oldlc = p->line;
|
||
|
oldpc = p->pc + MINLC;
|
||
|
if(s > 64 || s < -64) {
|
||
|
CPUT(0); /* 0 vv +lc */
|
||
|
CPUT(s>>24);
|
||
|
CPUT(s>>16);
|
||
|
CPUT(s>>8);
|
||
|
CPUT(s);
|
||
|
if(debug['L']) {
|
||
|
if(s > 0)
|
||
|
Bprint(&bso, " lc+%ld(%d,%ld)\n",
|
||
|
s, 0, s);
|
||
|
else
|
||
|
Bprint(&bso, " lc%ld(%d,%ld)\n",
|
||
|
s, 0, s);
|
||
|
Bprint(&bso, "%6lux %P\n",
|
||
|
p->pc, p);
|
||
|
}
|
||
|
lcsize += 5;
|
||
|
continue;
|
||
|
}
|
||
|
if(s > 0) {
|
||
|
CPUT(0+s); /* 1-64 +lc */
|
||
|
if(debug['L']) {
|
||
|
Bprint(&bso, " lc+%ld(%ld)\n", s, 0+s);
|
||
|
Bprint(&bso, "%6lux %P\n",
|
||
|
p->pc, p);
|
||
|
}
|
||
|
} else {
|
||
|
CPUT(64-s); /* 65-128 -lc */
|
||
|
if(debug['L']) {
|
||
|
Bprint(&bso, " lc%ld(%ld)\n", s, 64-s);
|
||
|
Bprint(&bso, "%6lux %P\n",
|
||
|
p->pc, p);
|
||
|
}
|
||
|
}
|
||
|
lcsize++;
|
||
|
}
|
||
|
while(lcsize & 1) {
|
||
|
s = 129;
|
||
|
CPUT(s);
|
||
|
lcsize++;
|
||
|
}
|
||
|
if(debug['v'] || debug['L'])
|
||
|
Bprint(&bso, "lcsize = %ld\n", lcsize);
|
||
|
Bflush(&bso);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
datblk(long s, long n, int str)
|
||
|
{
|
||
|
Prog *p;
|
||
|
char *cast;
|
||
|
long l, fl, j, d;
|
||
|
int i, c;
|
||
|
|
||
|
memset(buf.dbuf, 0, n+100);
|
||
|
for(p = datap; p != P; p = p->link) {
|
||
|
curp = p;
|
||
|
if(str != (p->from.sym->type == SSTRING))
|
||
|
continue;
|
||
|
l = p->from.sym->value + p->from.offset - s;
|
||
|
c = p->reg;
|
||
|
i = 0;
|
||
|
if(l < 0) {
|
||
|
if(l+c <= 0)
|
||
|
continue;
|
||
|
while(l < 0) {
|
||
|
l++;
|
||
|
i++;
|
||
|
}
|
||
|
}
|
||
|
if(l >= n)
|
||
|
continue;
|
||
|
if(p->as != AINIT && p->as != ADYNT) {
|
||
|
for(j=l+(c-i)-1; j>=l; j--)
|
||
|
if(buf.dbuf[j]) {
|
||
|
print("%P\n", p);
|
||
|
diag("multiple initialization");
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
switch(p->to.type) {
|
||
|
default:
|
||
|
diag("unknown mode in initialization\n%P", p);
|
||
|
break;
|
||
|
|
||
|
case D_FCONST:
|
||
|
switch(c) {
|
||
|
default:
|
||
|
case 4:
|
||
|
fl = ieeedtof(p->to.ieee);
|
||
|
cast = (char*)&fl;
|
||
|
for(; i<c; i++) {
|
||
|
buf.dbuf[l] = cast[fnuxi8[i+4]];
|
||
|
l++;
|
||
|
}
|
||
|
break;
|
||
|
case 8:
|
||
|
cast = (char*)p->to.ieee;
|
||
|
for(; i<c; i++) {
|
||
|
buf.dbuf[l] = cast[fnuxi8[i]];
|
||
|
l++;
|
||
|
}
|
||
|
break;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case D_SCONST:
|
||
|
for(; i<c; i++) {
|
||
|
buf.dbuf[l] = p->to.sval[i];
|
||
|
l++;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case D_CONST:
|
||
|
d = p->to.offset;
|
||
|
if(p->to.sym) {
|
||
|
switch(p->to.sym->type) {
|
||
|
case STEXT:
|
||
|
case SLEAF:
|
||
|
case SSTRING:
|
||
|
d += p->to.sym->value;
|
||
|
break;
|
||
|
case SDATA:
|
||
|
case SBSS:
|
||
|
d += p->to.sym->value + INITDAT;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
cast = (char*)&d;
|
||
|
switch(c) {
|
||
|
default:
|
||
|
diag("bad nuxi %d %d\n%P", c, i, curp);
|
||
|
break;
|
||
|
case 1:
|
||
|
for(; i<c; i++) {
|
||
|
buf.dbuf[l] = cast[inuxi1[i]];
|
||
|
l++;
|
||
|
}
|
||
|
break;
|
||
|
case 2:
|
||
|
for(; i<c; i++) {
|
||
|
buf.dbuf[l] = cast[inuxi2[i]];
|
||
|
l++;
|
||
|
}
|
||
|
break;
|
||
|
case 4:
|
||
|
for(; i<c; i++) {
|
||
|
buf.dbuf[l] = cast[inuxi4[i]];
|
||
|
l++;
|
||
|
}
|
||
|
break;
|
||
|
}
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
write(cout, buf.dbuf, n);
|
||
|
}
|
||
|
|
||
|
#define OP_RRR(op,r1,r2,r3)\
|
||
|
(op|(((r1)&31L)<<16)|(((r2)&31L)<<21)|(((r3)&31L)<<11))
|
||
|
#define OP_IRR(op,i,r2,r3)\
|
||
|
(op|((i)&0xffffL)|(((r2)&31L)<<21)|(((r3)&31L)<<16))
|
||
|
#define OP_SRR(op,s,r2,r3)\
|
||
|
(op|(((s)&31L)<<6)|(((r2)&31L)<<16)|(((r3)&31L)<<11))
|
||
|
#define OP_FRRR(op,r1,r2,r3)\
|
||
|
(op|(((r1)&31L)<<16)|(((r2)&31L)<<11)|(((r3)&31L)<<6))
|
||
|
#define OP_JMP(op,i)\
|
||
|
((op)|((i)&0x3ffffffL))
|
||
|
|
||
|
#define OP(x,y)\
|
||
|
(((x)<<3)|((y)<<0))
|
||
|
#define SP(x,y)\
|
||
|
(((x)<<29)|((y)<<26))
|
||
|
#define BCOND(x,y)\
|
||
|
(((x)<<19)|((y)<<16))
|
||
|
#define MMU(x,y)\
|
||
|
(SP(2,0)|(16<<21)|((x)<<3)|((y)<<0))
|
||
|
#define FPF(x,y)\
|
||
|
(SP(2,1)|(16<<21)|((x)<<3)|((y)<<0))
|
||
|
#define FPD(x,y)\
|
||
|
(SP(2,1)|(17<<21)|((x)<<3)|((y)<<0))
|
||
|
#define FPW(x,y)\
|
||
|
(SP(2,1)|(20<<21)|((x)<<3)|((y)<<0))
|
||
|
|
||
|
int vshift(int);
|
||
|
|
||
|
int
|
||
|
asmout(Prog *p, Optab *o, int aflag)
|
||
|
{
|
||
|
long o1, o2, o3, o4, o5, o6, o7, v;
|
||
|
Prog *ct;
|
||
|
int r, a;
|
||
|
|
||
|
o1 = 0;
|
||
|
o2 = 0;
|
||
|
o3 = 0;
|
||
|
o4 = 0;
|
||
|
o5 = 0;
|
||
|
o6 = 0;
|
||
|
o7 = 0;
|
||
|
switch(o->type) {
|
||
|
default:
|
||
|
diag("unknown type %d", o->type);
|
||
|
if(!debug['a'])
|
||
|
prasm(p);
|
||
|
break;
|
||
|
|
||
|
case 0: /* pseudo ops */
|
||
|
if(aflag) {
|
||
|
if(p->link) {
|
||
|
if(p->as == ATEXT) {
|
||
|
ct = curtext;
|
||
|
o2 = autosize;
|
||
|
curtext = p;
|
||
|
autosize = p->to.offset + 4;
|
||
|
o1 = asmout(p->link, oplook(p->link), aflag);
|
||
|
curtext = ct;
|
||
|
autosize = o2;
|
||
|
} else
|
||
|
o1 = asmout(p->link, oplook(p->link), aflag);
|
||
|
}
|
||
|
return o1;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case 1: /* mov[v] r1,r2 ==> OR r1,r0,r2 */
|
||
|
o1 = OP_RRR(oprrr(AOR), p->from.reg, REGZERO, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 2: /* add/sub r1,[r2],r3 */
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
r = p->to.reg;
|
||
|
o1 = OP_RRR(oprrr(p->as), p->from.reg, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 3: /* mov $soreg, r ==> or/add $i,o,r */
|
||
|
v = regoff(&p->from);
|
||
|
r = p->from.reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
a = AADDU;
|
||
|
if(o->a1 == C_ANDCON)
|
||
|
a = AOR;
|
||
|
o1 = OP_IRR(opirr(a), v, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 4: /* add $scon,[r1],r2 */
|
||
|
v = regoff(&p->from);
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
r = p->to.reg;
|
||
|
o1 = OP_IRR(opirr(p->as), v, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 5: /* syscall */
|
||
|
if(aflag)
|
||
|
return 0;
|
||
|
o1 = oprrr(p->as);
|
||
|
break;
|
||
|
|
||
|
case 6: /* beq r1,[r2],sbra */
|
||
|
if(aflag)
|
||
|
return 0;
|
||
|
if(p->cond == P)
|
||
|
v = -4 >> 2;
|
||
|
else
|
||
|
v = (p->cond->pc - pc-4) >> 2;
|
||
|
if(((v << 16) >> 16) != v)
|
||
|
diag("short branch too far: %ld\n%P", v, p);
|
||
|
o1 = OP_IRR(opirr(p->as), v, p->from.reg, p->reg);
|
||
|
break;
|
||
|
|
||
|
case 7: /* mov r, soreg ==> sw o(r) */
|
||
|
r = p->to.reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
v = regoff(&p->to);
|
||
|
o1 = OP_IRR(opirr(p->as), v, r, p->from.reg);
|
||
|
break;
|
||
|
|
||
|
case 8: /* mov soreg, r ==> lw o(r) */
|
||
|
r = p->from.reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
v = regoff(&p->from);
|
||
|
o1 = OP_IRR(opirr(p->as+ALAST), v, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 9: /* asl r1,[r2],r3 */
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
r = p->to.reg;
|
||
|
o1 = OP_RRR(oprrr(p->as), r, p->from.reg, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 10: /* add $con,[r1],r2 ==> mov $con,t; add t,[r1],r2 */
|
||
|
v = regoff(&p->from);
|
||
|
r = AOR;
|
||
|
if(v < 0)
|
||
|
r = AADDU;
|
||
|
o1 = OP_IRR(opirr(r), v, 0, REGTMP);
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
r = p->to.reg;
|
||
|
o2 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 11: /* jmp lbra */
|
||
|
if(aflag)
|
||
|
return 0;
|
||
|
if(p->cond == P)
|
||
|
v = p->pc >> 2;
|
||
|
else
|
||
|
v = p->cond->pc >> 2;
|
||
|
o1 = OP_JMP(opirr(p->as), v);
|
||
|
if(!debug['Y'] && p->link && p->cond && isnop(p->link)) {
|
||
|
nop.branch.count--;
|
||
|
nop.branch.outof--;
|
||
|
nop.jump.outof++;
|
||
|
o2 = asmout(p->cond, oplook(p->cond), 1);
|
||
|
if(o2) {
|
||
|
o1 += 1;
|
||
|
if(debug['a'])
|
||
|
Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n",
|
||
|
p->pc, o1, o2, p);
|
||
|
LPUT(o1);
|
||
|
LPUT(o2);
|
||
|
return 1;
|
||
|
}
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case 12: /* movbs r,r */
|
||
|
v = 16;
|
||
|
if(p->as == AMOVB)
|
||
|
v = 24;
|
||
|
o1 = OP_SRR(opirr(ASLL), v, p->from.reg, p->to.reg);
|
||
|
o2 = OP_SRR(opirr(ASRA), v, p->to.reg, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 13: /* movbu r,r */
|
||
|
if(p->as == AMOVBU)
|
||
|
o1 = OP_IRR(opirr(AAND), 0xffL, p->from.reg, p->to.reg);
|
||
|
else
|
||
|
o1 = OP_IRR(opirr(AAND), 0xffffL, p->from.reg, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 16: /* sll $c,[r1],r2 */
|
||
|
v = regoff(&p->from);
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
r = p->to.reg;
|
||
|
|
||
|
/* OP_SRR will use only the low 5 bits of the shift value */
|
||
|
if(v >= 32 && vshift(p->as))
|
||
|
o1 = OP_SRR(opirr(p->as+ALAST), v-32, r, p->to.reg);
|
||
|
else
|
||
|
o1 = OP_SRR(opirr(p->as), v, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 18: /* jmp [r1],0(r2) */
|
||
|
if(aflag)
|
||
|
return 0;
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
o1 = OP_RRR(oprrr(p->as), 0, p->to.reg, r);
|
||
|
break;
|
||
|
|
||
|
case 19: /* mov $lcon,r ==> lu+or */
|
||
|
v = regoff(&p->from);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, p->to.reg);
|
||
|
o2 = OP_IRR(opirr(AOR), v, p->to.reg, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 20: /* mov lohi,r */
|
||
|
r = OP(2,0); /* mfhi */
|
||
|
if(p->from.type == D_LO)
|
||
|
r = OP(2,2); /* mflo */
|
||
|
o1 = OP_RRR(r, REGZERO, REGZERO, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 21: /* mov r,lohi */
|
||
|
r = OP(2,1); /* mthi */
|
||
|
if(p->to.type == D_LO)
|
||
|
r = OP(2,3); /* mtlo */
|
||
|
o1 = OP_RRR(r, REGZERO, p->from.reg, REGZERO);
|
||
|
break;
|
||
|
|
||
|
case 22: /* mul r1,r2 */
|
||
|
o1 = OP_RRR(oprrr(p->as), p->from.reg, p->reg, REGZERO);
|
||
|
break;
|
||
|
|
||
|
case 23: /* add $lcon,r1,r2 ==> lu+or+add */
|
||
|
v = regoff(&p->from);
|
||
|
if(p->to.reg == REGTMP || p->reg == REGTMP)
|
||
|
diag("cant synthesize large constant\n%P", p);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP);
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
r = p->to.reg;
|
||
|
o3 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 24: /* mov $ucon,,r ==> lu r */
|
||
|
v = regoff(&p->from);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 25: /* add/and $ucon,[r1],r2 ==> lu $con,t; add t,[r1],r2 */
|
||
|
v = regoff(&p->from);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
r = p->to.reg;
|
||
|
o2 = OP_RRR(oprrr(p->as), REGTMP, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 26: /* mov $lsext/auto/oreg,,r2 ==> lu+or+add */
|
||
|
v = regoff(&p->from);
|
||
|
if(p->to.reg == REGTMP)
|
||
|
diag("cant synthesize large constant\n%P", p);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP);
|
||
|
r = p->from.reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
o3 = OP_RRR(oprrr(AADDU), REGTMP, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 27: /* mov [sl]ext/auto/oreg,fr ==> lwc1 o(r) */
|
||
|
r = p->from.reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
v = regoff(&p->from);
|
||
|
switch(o->size) {
|
||
|
case 20:
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP);
|
||
|
o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP);
|
||
|
o4 = OP_IRR(opirr(AMOVF+ALAST), 0, REGTMP, p->to.reg+1);
|
||
|
o5 = OP_IRR(opirr(AMOVF+ALAST), 4, REGTMP, p->to.reg);
|
||
|
break;
|
||
|
case 16:
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP);
|
||
|
o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP);
|
||
|
o4 = OP_IRR(opirr(AMOVF+ALAST), 0, REGTMP, p->to.reg);
|
||
|
break;
|
||
|
case 8:
|
||
|
o1 = OP_IRR(opirr(AMOVF+ALAST), v, r, p->to.reg+1);
|
||
|
o2 = OP_IRR(opirr(AMOVF+ALAST), v+4, r, p->to.reg);
|
||
|
break;
|
||
|
case 4:
|
||
|
o1 = OP_IRR(opirr(AMOVF+ALAST), v, r, p->to.reg);
|
||
|
break;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case 28: /* mov fr,[sl]ext/auto/oreg ==> swc1 o(r) */
|
||
|
r = p->to.reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
v = regoff(&p->to);
|
||
|
switch(o->size) {
|
||
|
case 20:
|
||
|
if(r == REGTMP)
|
||
|
diag("cant synthesize large constant\n%P", p);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP);
|
||
|
o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP);
|
||
|
o4 = OP_IRR(opirr(AMOVF), 0, REGTMP, p->from.reg+1);
|
||
|
o5 = OP_IRR(opirr(AMOVF), 4, REGTMP, p->from.reg);
|
||
|
break;
|
||
|
case 16:
|
||
|
if(r == REGTMP)
|
||
|
diag("cant synthesize large constant\n%P", p);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP);
|
||
|
o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP);
|
||
|
o4 = OP_IRR(opirr(AMOVF), 0, REGTMP, p->from.reg);
|
||
|
break;
|
||
|
case 8:
|
||
|
o1 = OP_IRR(opirr(AMOVF), v, r, p->from.reg+1);
|
||
|
o2 = OP_IRR(opirr(AMOVF), v+4, r, p->from.reg);
|
||
|
break;
|
||
|
case 4:
|
||
|
o1 = OP_IRR(opirr(AMOVF), v, r, p->from.reg);
|
||
|
break;
|
||
|
}
|
||
|
break;
|
||
|
|
||
|
case 30: /* movw r,fr */
|
||
|
r = SP(2,1)|(4<<21); /* mtc1 */
|
||
|
o1 = OP_RRR(r, p->from.reg, 0, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 31: /* movw fr,r */
|
||
|
r = SP(2,1)|(0<<21); /* mfc1 */
|
||
|
o1 = OP_RRR(r, p->to.reg, 0, p->from.reg);
|
||
|
break;
|
||
|
|
||
|
case 32: /* fadd fr1,[fr2],fr3 */
|
||
|
r = p->reg;
|
||
|
if(r == NREG)
|
||
|
o1 = OP_FRRR(oprrr(p->as), p->from.reg, p->to.reg, p->to.reg);
|
||
|
else
|
||
|
o1 = OP_FRRR(oprrr(p->as), p->from.reg, r, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 33: /* fabs fr1,fr3 */
|
||
|
o1 = OP_FRRR(oprrr(p->as), 0, p->from.reg, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 34: /* mov $con,fr ==> or/add $i,r,r2 */
|
||
|
v = regoff(&p->from);
|
||
|
r = AADDU;
|
||
|
if(o->a1 == C_ANDCON)
|
||
|
r = AOR;
|
||
|
o1 = OP_IRR(opirr(r), v, 0, REGTMP);
|
||
|
o2 = OP_RRR(SP(2,1)|(4<<21), REGTMP, 0, p->to.reg); /* mtc1 */
|
||
|
break;
|
||
|
|
||
|
case 35: /* mov r,lext/luto/oreg ==> sw o(r) */
|
||
|
/*
|
||
|
* the lowbits of the constant cannot
|
||
|
* be moved into the offset of the load
|
||
|
* because the mips 4000 in 64-bit mode
|
||
|
* does a 64-bit add and it will screw up.
|
||
|
*/
|
||
|
v = regoff(&p->to);
|
||
|
r = p->to.reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
if(r == REGTMP)
|
||
|
diag("cant synthesize large constant\n%P", p);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP);
|
||
|
o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP);
|
||
|
o4 = OP_IRR(opirr(p->as), 0, REGTMP, p->from.reg);
|
||
|
break;
|
||
|
|
||
|
case 36: /* mov lext/lauto/lreg,r ==> lw o(r30) */
|
||
|
v = regoff(&p->from);
|
||
|
r = p->from.reg;
|
||
|
if(r == NREG)
|
||
|
r = o->param;
|
||
|
if(r == REGTMP)
|
||
|
diag("cant synthesize large constant\n%P", p);
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_IRR(opirr(AOR), v, REGTMP, REGTMP);
|
||
|
o3 = OP_RRR(oprrr(AADDU), r, REGTMP, REGTMP);
|
||
|
o4 = OP_IRR(opirr(p->as+ALAST), 0, REGTMP, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 37: /* movw r,mr */
|
||
|
r = SP(2,0)|(4<<21); /* mtc0 */
|
||
|
if(p->as == AMOVV)
|
||
|
r = SP(2,0)|(5<<21); /* dmtc0 */
|
||
|
o1 = OP_RRR(r, p->from.reg, 0, p->to.reg);
|
||
|
break;
|
||
|
|
||
|
case 38: /* movw mr,r */
|
||
|
r = SP(2,0)|(0<<21); /* mfc0 */
|
||
|
if(p->as == AMOVV)
|
||
|
r = SP(2,0)|(1<<21); /* dmfc0 */
|
||
|
o1 = OP_RRR(r, p->to.reg, 0, p->from.reg);
|
||
|
break;
|
||
|
|
||
|
case 39: /* rfe ==> jmp+rfe */
|
||
|
if(aflag)
|
||
|
return 0;
|
||
|
o1 = OP_RRR(oprrr(AJMP), 0, p->to.reg, REGZERO);
|
||
|
o2 = oprrr(p->as);
|
||
|
break;
|
||
|
|
||
|
case 40: /* word */
|
||
|
if(aflag)
|
||
|
return 0;
|
||
|
o1 = regoff(&p->to);
|
||
|
break;
|
||
|
|
||
|
case 41: /* movw r,fcr */
|
||
|
o1 = OP_RRR(SP(2,1)|(2<<21), REGZERO, 0, p->to.reg); /* mfcc1 */
|
||
|
o2 = OP_RRR(SP(2,1)|(6<<21), p->from.reg, 0, p->to.reg);/* mtcc1 */
|
||
|
break;
|
||
|
|
||
|
case 42: /* movw fcr,r */
|
||
|
o1 = OP_RRR(SP(2,1)|(2<<21), p->to.reg, 0, p->from.reg);/* mfcc1 */
|
||
|
break;
|
||
|
|
||
|
case 45: /* case r */
|
||
|
if(p->link == P)
|
||
|
v = p->pc+28;
|
||
|
else
|
||
|
v = p->link->pc;
|
||
|
if(v & (1<<15))
|
||
|
o1 = OP_IRR(opirr(ALAST), (v>>16)+1, REGZERO, REGTMP);
|
||
|
else
|
||
|
o1 = OP_IRR(opirr(ALAST), v>>16, REGZERO, REGTMP);
|
||
|
o2 = OP_SRR(opirr(ASLL), 2, p->from.reg, p->from.reg);
|
||
|
o3 = OP_RRR(oprrr(AADD), p->from.reg, REGTMP, REGTMP);
|
||
|
o4 = OP_IRR(opirr(AMOVW+ALAST), v, REGTMP, REGTMP);
|
||
|
o5 = OP_RRR(oprrr(ANOR), REGZERO, REGZERO, REGZERO);
|
||
|
o6 = OP_RRR(oprrr(AJMP), 0, REGTMP, REGZERO);
|
||
|
o7 = OP_RRR(oprrr(ANOR), REGZERO, REGZERO, REGZERO);
|
||
|
break;
|
||
|
|
||
|
case 46: /* bcase $con,lbra */
|
||
|
if(p->cond == P)
|
||
|
v = p->pc;
|
||
|
else
|
||
|
v = p->cond->pc;
|
||
|
o1 = v;
|
||
|
break;
|
||
|
}
|
||
|
if(aflag)
|
||
|
return o1;
|
||
|
v = p->pc;
|
||
|
switch(o->size) {
|
||
|
default:
|
||
|
if(debug['a'])
|
||
|
Bprint(&bso, " %.8lux:\t\t%P\n", v, p);
|
||
|
break;
|
||
|
case 4:
|
||
|
if(debug['a'])
|
||
|
Bprint(&bso, " %.8lux: %.8lux\t%P\n", v, o1, p);
|
||
|
LPUT(o1);
|
||
|
break;
|
||
|
case 8:
|
||
|
if(debug['a'])
|
||
|
Bprint(&bso, " %.8lux: %.8lux %.8lux%P\n", v, o1, o2, p);
|
||
|
LPUT(o1);
|
||
|
LPUT(o2);
|
||
|
break;
|
||
|
case 12:
|
||
|
if(debug['a'])
|
||
|
Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux%P\n", v, o1, o2, o3, p);
|
||
|
LPUT(o1);
|
||
|
LPUT(o2);
|
||
|
LPUT(o3);
|
||
|
break;
|
||
|
case 16:
|
||
|
if(debug['a'])
|
||
|
Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux%P\n",
|
||
|
v, o1, o2, o3, o4, p);
|
||
|
LPUT(o1);
|
||
|
LPUT(o2);
|
||
|
LPUT(o3);
|
||
|
LPUT(o4);
|
||
|
break;
|
||
|
case 20:
|
||
|
if(debug['a'])
|
||
|
Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux %.8lux%P\n",
|
||
|
v, o1, o2, o3, o4, o5, p);
|
||
|
LPUT(o1);
|
||
|
LPUT(o2);
|
||
|
LPUT(o3);
|
||
|
LPUT(o4);
|
||
|
LPUT(o5);
|
||
|
break;
|
||
|
|
||
|
case 28:
|
||
|
if(debug['a'])
|
||
|
Bprint(&bso, " %.8lux: %.8lux %.8lux %.8lux %.8lux %.8lux %.8lux %.8lux%P\n",
|
||
|
v, o1, o2, o3, o4, o5, o6, o7, p);
|
||
|
LPUT(o1);
|
||
|
LPUT(o2);
|
||
|
LPUT(o3);
|
||
|
LPUT(o4);
|
||
|
LPUT(o5);
|
||
|
LPUT(o6);
|
||
|
LPUT(o7);
|
||
|
break;
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int
|
||
|
isnop(Prog *p)
|
||
|
{
|
||
|
if(p->as != ANOR)
|
||
|
return 0;
|
||
|
if(p->reg != REGZERO && p->reg != NREG)
|
||
|
return 0;
|
||
|
if(p->from.type != D_REG || p->from.reg != REGZERO)
|
||
|
return 0;
|
||
|
if(p->to.type != D_REG || p->to.reg != REGZERO)
|
||
|
return 0;
|
||
|
return 1;
|
||
|
}
|
||
|
|
||
|
long
|
||
|
oprrr(int a)
|
||
|
{
|
||
|
switch(a) {
|
||
|
case AADD: return OP(4,0);
|
||
|
case AADDU: return OP(4,1);
|
||
|
case ASGT: return OP(5,2);
|
||
|
case ASGTU: return OP(5,3);
|
||
|
case AAND: return OP(4,4);
|
||
|
case AOR: return OP(4,5);
|
||
|
case AXOR: return OP(4,6);
|
||
|
case ASUB: return OP(4,2);
|
||
|
case ASUBU: return OP(4,3);
|
||
|
case ANOR: return OP(4,7);
|
||
|
case ASLL: return OP(0,4);
|
||
|
case ASRL: return OP(0,6);
|
||
|
case ASRA: return OP(0,7);
|
||
|
|
||
|
case AREM:
|
||
|
case ADIV: return OP(3,2);
|
||
|
case AREMU:
|
||
|
case ADIVU: return OP(3,3);
|
||
|
case AMUL: return OP(3,0);
|
||
|
case AMULU: return OP(3,1);
|
||
|
|
||
|
case AJMP: return OP(1,0);
|
||
|
case AJAL: return OP(1,1);
|
||
|
|
||
|
case ABREAK: return OP(1,5);
|
||
|
case ASYSCALL: return OP(1,4);
|
||
|
case ATLBP: return MMU(1,0);
|
||
|
case ATLBR: return MMU(0,1);
|
||
|
case ATLBWI: return MMU(0,2);
|
||
|
case ATLBWR: return MMU(0,6);
|
||
|
case ARFE: return MMU(2,0);
|
||
|
|
||
|
case ADIVF: return FPF(0,3);
|
||
|
case ADIVD: return FPD(0,3);
|
||
|
case AMULF: return FPF(0,2);
|
||
|
case AMULD: return FPD(0,2);
|
||
|
case ASUBF: return FPF(0,1);
|
||
|
case ASUBD: return FPD(0,1);
|
||
|
case AADDF: return FPF(0,0);
|
||
|
case AADDD: return FPD(0,0);
|
||
|
|
||
|
case AMOVFW: return FPF(4,4);
|
||
|
case AMOVDW: return FPD(4,4);
|
||
|
case AMOVWF: return FPW(4,0);
|
||
|
case AMOVDF: return FPD(4,0);
|
||
|
case AMOVWD: return FPW(4,1);
|
||
|
case AMOVFD: return FPF(4,1);
|
||
|
case AABSF: return FPF(0,5);
|
||
|
case AABSD: return FPD(0,5);
|
||
|
case AMOVF: return FPF(0,6);
|
||
|
case AMOVD: return FPD(0,6);
|
||
|
case ANEGF: return FPF(0,7);
|
||
|
case ANEGD: return FPD(0,7);
|
||
|
|
||
|
case ACMPEQF: return FPF(6,2);
|
||
|
case ACMPEQD: return FPD(6,2);
|
||
|
case ACMPGTF: return FPF(7,4);
|
||
|
case ACMPGTD: return FPD(7,4);
|
||
|
case ACMPGEF: return FPF(7,6);
|
||
|
case ACMPGED: return FPD(7,6);
|
||
|
|
||
|
case ADIVV: return OP(3,6);
|
||
|
case ADIVVU: return OP(3,7);
|
||
|
case AADDV: return OP(5,4);
|
||
|
case AADDVU: return OP(5,5);
|
||
|
}
|
||
|
diag("bad rrr %d", a);
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
long
|
||
|
opirr(int a)
|
||
|
{
|
||
|
switch(a) {
|
||
|
case AADD: return SP(1,0);
|
||
|
case AADDU: return SP(1,1);
|
||
|
case ASGT: return SP(1,2);
|
||
|
case ASGTU: return SP(1,3);
|
||
|
case AAND: return SP(1,4);
|
||
|
case AOR: return SP(1,5);
|
||
|
case AXOR: return SP(1,6);
|
||
|
case ALAST: return SP(1,7);
|
||
|
case ASLL: return OP(0,0);
|
||
|
case ASRL: return OP(0,2);
|
||
|
case ASRA: return OP(0,3);
|
||
|
|
||
|
case AJMP: return SP(0,2);
|
||
|
case AJAL: return SP(0,3);
|
||
|
case ABEQ: return SP(0,4);
|
||
|
case ABNE: return SP(0,5);
|
||
|
|
||
|
case ABGEZ: return SP(0,1)|BCOND(0,1);
|
||
|
case ABGEZAL: return SP(0,1)|BCOND(2,1);
|
||
|
case ABGTZ: return SP(0,7);
|
||
|
case ABLEZ: return SP(0,6);
|
||
|
case ABLTZ: return SP(0,1)|BCOND(0,0);
|
||
|
case ABLTZAL: return SP(0,1)|BCOND(2,0);
|
||
|
|
||
|
case ABFPT: return SP(2,1)|(257<<16);
|
||
|
case ABFPF: return SP(2,1)|(256<<16);
|
||
|
|
||
|
case AMOVB:
|
||
|
case AMOVBU: return SP(5,0);
|
||
|
case AMOVH:
|
||
|
case AMOVHU: return SP(5,1);
|
||
|
case AMOVW: return SP(5,3);
|
||
|
case AMOVV: return SP(7,7);
|
||
|
case AMOVF: return SP(7,1);
|
||
|
case AMOVWL: return SP(5,2);
|
||
|
case AMOVWR: return SP(5,6);
|
||
|
case AMOVVL: return SP(5,4);
|
||
|
case AMOVVR: return SP(5,5);
|
||
|
|
||
|
case ABREAK: return SP(5,7);
|
||
|
|
||
|
case AMOVWL+ALAST: return SP(4,2);
|
||
|
case AMOVWR+ALAST: return SP(4,6);
|
||
|
case AMOVVL+ALAST: return SP(3,2);
|
||
|
case AMOVVR+ALAST: return SP(3,3);
|
||
|
case AMOVB+ALAST: return SP(4,0);
|
||
|
case AMOVBU+ALAST: return SP(4,4);
|
||
|
case AMOVH+ALAST: return SP(4,1);
|
||
|
case AMOVHU+ALAST: return SP(4,5);
|
||
|
case AMOVW+ALAST: return SP(4,3);
|
||
|
case AMOVV+ALAST: return SP(6,7);
|
||
|
case AMOVF+ALAST: return SP(6,1);
|
||
|
|
||
|
case ASLLV: return OP(7,0);
|
||
|
case ASRLV: return OP(7,2);
|
||
|
case ASRAV: return OP(7,3);
|
||
|
case ASLLV+ALAST: return OP(7,4);
|
||
|
case ASRLV+ALAST: return OP(7,6);
|
||
|
case ASRAV+ALAST: return OP(7,7);
|
||
|
|
||
|
case AADDV: return SP(3,0);
|
||
|
case AADDVU: return SP(3,1);
|
||
|
}
|
||
|
diag("bad irr %d", a);
|
||
|
abort();
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int
|
||
|
vshift(int a)
|
||
|
{
|
||
|
switch(a){
|
||
|
case ASLLV: return 1;
|
||
|
case ASRLV: return 1;
|
||
|
case ASRAV: return 1;
|
||
|
}
|
||
|
return 0;
|
||
|
}
|