ref: 50791b875552b0dc5748aa67c95776736f6ff4b7
dir: /sys/src/cmd/7l/list.c/
#include "l.h"
void
listinit(void)
{
fmtinstall('A', Aconv);
fmtinstall('D', Dconv);
fmtinstall('P', Pconv);
fmtinstall('S', Sconv);
fmtinstall('N', Nconv);
fmtinstall('R', Rconv);
}
int
Pconv(Fmt *fp)
{
char str[STRINGSZ], *s;
Prog *p;
int a;
p = va_arg(fp->args, Prog*);
curp = p;
a = p->as;
switch(a) {
default:
s = str;
s += sprint(s, "(%ld)", p->line);
if(p->reg == NREG && p->from3.type == D_NONE)
sprint(s, " %A %D,%D",
a, &p->from, &p->to);
else if(p->from.type != D_FREG){
s += sprint(s, " %A %D", a, &p->from);
if(p->from3.type != D_NONE)
s += sprint(s, ",%D", &p->from3);
if(p->reg != NREG)
s += sprint(s, ",R%d", p->reg);
sprint(s, ",%D", &p->to);
}else
sprint(s, " %A %D,F%d,%D",
a, &p->from, p->reg, &p->to);
break;
case ADATA:
case AINIT:
case ADYNT:
sprint(str, "(%ld) %A %D/%d,%D",
p->line, a, &p->from, p->reg, &p->to);
break;
}
return fmtstrcpy(fp, str);
}
int
Aconv(Fmt *fp)
{
char *s;
int a;
a = va_arg(fp->args, int);
s = "???";
if(a >= AXXX && a < ALAST && anames[a])
s = anames[a];
return fmtstrcpy(fp, s);
}
char* strcond[16] =
{
"EQ",
"NE",
"HS",
"LO",
"MI",
"PL",
"VS",
"VC",
"HI",
"LS",
"GE",
"LT",
"GT",
"LE",
"AL",
"NV"
};
int
Dconv(Fmt *fp)
{
char str[STRINGSZ];
char *op;
Adr *a;
long v;
static char *extop[] = {".UB", ".UH", ".UW", ".UX", ".SB", ".SH", ".SW", ".SX"};
a = va_arg(fp->args, Adr*);
switch(a->type) {
default:
sprint(str, "GOK-type(%d)", a->type);
break;
case D_NONE:
str[0] = 0;
if(a->name != D_NONE || a->reg != NREG || a->sym != S)
sprint(str, "%N(R%d)(NONE)", a, a->reg);
break;
case D_CONST:
if(a->reg == NREG || a->reg == REGZERO)
sprint(str, "$%N", a);
else
sprint(str, "$%N(R%d)", a, a->reg);
break;
case D_SHIFT:
v = a->offset;
op = "<<>>->@>" + (((v>>22) & 3) << 1);
sprint(str, "R%ld%c%c%ld", (v>>16)&0x1F, op[0], op[1], (v>>10)&0x3F);
if(a->reg != NREG)
sprint(str+strlen(str), "(R%d)", a->reg);
break;
case D_OCONST:
sprint(str, "$*$%N", a);
if(a->reg != NREG)
sprint(str, "%N(R%d)(CONST)", a, a->reg);
break;
case D_OREG:
if(a->reg != NREG)
sprint(str, "%N(R%d)", a, a->reg);
else
sprint(str, "%N", a);
break;
case D_XPRE:
if(a->reg != NREG)
sprint(str, "%N(R%d)!", a, a->reg);
else
sprint(str, "%N!", a);
break;
case D_XPOST:
if(a->reg != NREG)
sprint(str, "(R%d)%N!", a->reg, a);
else
sprint(str, "%N!", a);
break;
case D_EXTREG:
v = a->offset;
if(v & (7<<10))
snprint(str, sizeof(str), "R%ld%s<<%ld", (v>>16)&31, extop[(v>>13)&7], (v>>10)&7);
else
snprint(str, sizeof(str), "R%ld%s", (v>>16)&31, extop[(v>>13)&7]);
break;
case D_ROFF:
v = a->offset;
if(v & (1<<16))
snprint(str, sizeof(str), "(R%d)[R%ld%s]", a->reg, v&31, extop[(v>>8)&7]);
else
snprint(str, sizeof(str), "(R%d)(R%ld%s)", a->reg, v&31, extop[(v>>8)&7]);
break;
case D_REG:
sprint(str, "R%d", a->reg);
if(a->name != D_NONE || a->sym != S)
sprint(str, "%N(R%d)(REG)", a, a->reg);
break;
case D_SP:
if(a->name != D_NONE || a->sym != S)
sprint(str, "%N(R%d)(REG)", a, a->reg);
else
strcpy(str, "SP");
break;
case D_COND:
strcpy(str, strcond[a->reg & 0xF]);
break;
case D_FREG:
sprint(str, "F%d", a->reg);
if(a->name != D_NONE || a->sym != S)
sprint(str, "%N(R%d)(REG)", a, a->reg);
break;
case D_SPR:
switch((ulong)a->offset){
case D_FPSR:
sprint(str, "FPSR");
break;
case D_FPCR:
sprint(str, "FPCR");
break;
case D_NZCV:
sprint(str, "NZCV");
break;
default:
sprint(str, "SPR(%#llux)", a->offset);
break;
}
if(a->name != D_NONE || a->sym != S)
sprint(str, "%N(SPR%lld)(REG)", a, a->offset);
break;
case D_BRANCH: /* botch */
if(curp->cond != P) {
v = curp->cond->pc;
if(a->sym != S)
sprint(str, "%s+%#.5lux(BRANCH)", a->sym->name, v);
else
sprint(str, "%.5lux(BRANCH)", v);
} else
if(a->sym != S)
sprint(str, "%s+%lld(APC)", a->sym->name, a->offset);
else
sprint(str, "%lld(APC)", a->offset);
break;
case D_FCONST:
sprint(str, "$%e", ieeedtod(a->ieee));
break;
case D_SCONST:
sprint(str, "$\"%S\"", a->sval);
break;
}
return fmtstrcpy(fp, str);
}
int
Nconv(Fmt *fp)
{
char str[STRINGSZ];
Adr *a;
Sym *s;
a = va_arg(fp->args, Adr*);
s = a->sym;
switch(a->name) {
default:
sprint(str, "GOK-name(%d)", a->name);
break;
case D_NONE:
sprint(str, "%lld", a->offset);
break;
case D_EXTERN:
if(s == S)
sprint(str, "%lld(SB)", a->offset);
else
sprint(str, "%s+%lld(SB)", s->name, a->offset);
break;
case D_STATIC:
if(s == S)
sprint(str, "<>+%lld(SB)", a->offset);
else
sprint(str, "%s<>+%lld(SB)", s->name, a->offset);
break;
case D_AUTO:
if(s == S)
sprint(str, "%lld(SP)", a->offset);
else
sprint(str, "%s-%lld(SP)", s->name, -a->offset);
break;
case D_PARAM:
if(s == S)
sprint(str, "%lld(FP)", a->offset);
else
sprint(str, "%s+%lld(FP)", s->name, a->offset);
break;
}
return fmtstrcpy(fp, str);
}
int
Rconv(Fmt *fp)
{
char *s;
int a;
a = va_arg(fp->args, int);
s = "C_??";
if(a >= C_NONE && a <= C_NCLASS)
s = cnames[a];
return fmtstrcpy(fp, s);
}
void
prasm(Prog *p)
{
print("%P\n", p);
}
int
Sconv(Fmt *fp)
{
int i, c;
char str[STRINGSZ], *p, *a;
a = va_arg(fp->args, char*);
p = str;
for(i=0; i<sizeof(long); i++) {
c = a[i] & 0xff;
if(c >= 'a' && c <= 'z' ||
c >= 'A' && c <= 'Z' ||
c >= '0' && c <= '9' ||
c == ' ' || c == '%') {
*p++ = c;
continue;
}
*p++ = '\\';
switch(c) {
case 0:
*p++ = 'z';
continue;
case '\\':
case '"':
*p++ = c;
continue;
case '\n':
*p++ = 'n';
continue;
case '\t':
*p++ = 't';
continue;
}
*p++ = (c>>6) + '0';
*p++ = ((c>>3) & 7) + '0';
*p++ = (c & 7) + '0';
}
*p = 0;
return fmtstrcpy(fp, str);
}
void
diag(char *fmt, ...)
{
char buf[STRINGSZ], *tn;
va_list arg;
tn = "??none??";
if(curtext != P && curtext->from.sym != S)
tn = curtext->from.sym->name;
va_start(arg, fmt);
vseprint(buf, buf+sizeof(buf), fmt, arg);
va_end(arg);
print("%s: %s\n", tn, buf);
nerrors++;
if(nerrors > 10) {
print("too many errors\n");
errorexit();
}
}