Import sources from 2011-03-30 iso image

1 files changed, 246 insertions, 0 deletions

diff --git a/sys/src/cmd/7l/list.c b/sys/src/cmd/7l/list.c
new file mode 100755
index 000000000..c1e5b7d9e
--- /dev/null
+++ b/sys/src/cmd/7l/list.c
@@ -0,0 +1,246 @@
+#include "l.h"
+
+void
+listinit(void)
+{
+
+	fmtinstall('A', Aconv);
+	fmtinstall('D', Dconv);
+	fmtinstall('P', Pconv);
+	fmtinstall('S', Sconv);
+	fmtinstall('N', Nconv);
+}
+
+void
+prasm(Prog *p)
+{
+	print("%P\n", p);
+}
+
+int
+Pconv(Fmt *fp)
+{
+	char str[STRINGSZ];
+	Prog *p;
+	int a;
+
+	p = va_arg(fp->args, Prog*);
+	curp = p;
+	a = p->as;
+	if(a == ADATA)
+		sprint(str, "(%ld)	%A	%D/%d,%D",
+			p->line, a, &p->from, p->reg, &p->to);
+	else
+	if(p->reg == NREG)
+		sprint(str, "(%ld)	%A	%D,%D",
+			p->line, a, &p->from, &p->to);
+	else
+	if(p->from.type != D_FREG)
+		sprint(str, "(%ld)	%A	%D,R%d,%D",
+			p->line, a, &p->from, p->reg, &p->to);
+	else
+		sprint(str, "(%ld)	%A	%D,F%d,%D",
+			p->line, a, &p->from, p->reg, &p->to);
+	return fmtstrcpy(fp, str);
+}
+
+int
+Aconv(Fmt *fp)
+{
+	char *s;
+	int a;
+
+	a = va_arg(fp->args, int);
+	s = "???";
+	if(a >= AXXX && a <= AEND)
+		s = anames[a];
+	return fmtstrcpy(fp, s);
+}
+
+int
+Dconv(Fmt *fp)
+{
+	char str[STRINGSZ];
+	Adr *a;
+	long v;
+
+	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:
+		sprint(str, "$%N", a);
+		if(a->reg != NREG)
+			sprint(str, "%N(R%d)(CONST)", a, a->reg);
+		break;
+
+	case D_OREG:
+		if(a->reg != NREG)
+			sprint(str, "%N(R%d)", a, a->reg);
+		else
+			sprint(str, "%N", a);
+		break;
+
+	case D_REG:
+		sprint(str, "R%d", a->reg);
+		if(a->name != D_NONE || a->sym != S)
+			sprint(str, "%N(R%d)(REG)", a, a->reg);
+		break;
+
+	case D_PREG:
+		sprint(str, "P%d", a->reg & 255);
+		if(a->name != D_NONE || a->sym != S)
+			sprint(str, "%N(R%d)(PREG)", a, a->reg);
+		break;
+
+	case D_FREG:
+		sprint(str, "F%d", a->reg);
+		if(a->name != D_NONE || a->sym != S)
+			sprint(str, "%N(R%d)(FREG)", a, a->reg);
+		break;
+
+	case D_FCREG:
+		sprint(str, "FPCR");
+		if(a->name != D_NONE || a->sym != S)
+			sprint(str, "%N(R%d)(FCREG)", a, a->reg);
+		break;
+
+	case D_BRANCH:	/* botch */
+		if(curp->cond != P) {
+			v = curp->cond->pc;
+			if(v >= INITTEXT)
+				v -= INITTEXT-HEADR;
+			if(a->sym != S)
+				sprint(str, "%s+%.5lux(BRANCH)", a->sym->name, v);
+			else
+				sprint(str, "%.5lux(BRANCH)", v);
+		} else
+			if(a->sym != S)
+				sprint(str, "%s+%lld(APC)", a->sym->name, a->offset);
+			else
+				sprint(str, "%lld(APC)", a->offset);
+		break;
+
+	case D_FCONST:
+		sprint(str, "$%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;
+	if(s == S) {
+		sprint(str, "%lld", a->offset);
+		goto out;
+	}
+	switch(a->name) {
+	default:
+		sprint(str, "GOK-name(%d)", a->name);
+		break;
+
+	case D_NONE:
+		sprint(str, "%lld", a->offset);
+		break;
+
+	case D_EXTERN:
+		sprint(str, "%s+%lld(SB)", s->name, a->offset);
+		break;
+
+	case D_STATIC:
+		sprint(str, "%s<>+%lld(SB)", s->name, a->offset);
+		break;
+
+	case D_AUTO:
+		sprint(str, "%s-%lld(SP)", s->name, -a->offset);
+		break;
+
+	case D_PARAM:
+		sprint(str, "%s+%lld(FP)", s->name, a->offset);
+		break;
+	}
+out:
+	return fmtstrcpy(fp, str);
+}
+
+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();
+	}
+}