mirror of
https://github.com/golang/go
synced 2024-10-04 22:31:22 -06:00
3e57d7f7bf
Thumb code and ARM pre-V4 code is unused, unmaintained, and almost certainly wrong by now. Every time I try to change 5l I have to sort out what's dead code and what's not. 30% of lines of code in this directory deleted. R=ken2 CC=golang-dev https://golang.org/cl/4601049
488 lines
9.6 KiB
C
488 lines
9.6 KiB
C
// Inferno utils/5l/list.h
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// http://code.google.com/p/inferno-os/source/browse/utils/5l/list.c
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//
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// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
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// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
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// Portions Copyright © 1997-1999 Vita Nuova Limited
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// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
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// Portions Copyright © 2004,2006 Bruce Ellis
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// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
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// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
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// Portions Copyright © 2009 The Go Authors. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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// Printing.
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#include "l.h"
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#include "../ld/lib.h"
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void
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listinit(void)
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{
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fmtinstall('A', Aconv);
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fmtinstall('C', Cconv);
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fmtinstall('D', Dconv);
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fmtinstall('P', Pconv);
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fmtinstall('S', Sconv);
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fmtinstall('N', Nconv);
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fmtinstall('O', Oconv); // C_type constants
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fmtinstall('I', Iconv);
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}
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void
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prasm(Prog *p)
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{
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print("%P\n", p);
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}
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int
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Pconv(Fmt *fp)
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{
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Prog *p;
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int a;
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p = va_arg(fp->args, Prog*);
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curp = p;
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a = p->as;
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switch(a) {
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default:
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fmtprint(fp, "(%d)", p->line);
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if(p->reg == NREG)
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fmtprint(fp, " %A%C %D,%D",
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a, p->scond, &p->from, &p->to);
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else
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if(p->from.type != D_FREG)
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fmtprint(fp, " %A%C %D,R%d,%D",
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a, p->scond, &p->from, p->reg, &p->to);
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else
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fmtprint(fp, " %A%C %D,F%d,%D",
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a, p->scond, &p->from, p->reg, &p->to);
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break;
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case ASWPW:
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case ASWPBU:
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fmtprint(fp, "(%d) %A%C R%d,%D,%D",
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p->line, a, p->scond, p->reg, &p->from, &p->to);
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break;
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case ADATA:
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case AINIT_:
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case ADYNT_:
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fmtprint(fp, "(%d) %A%C %D/%d,%D",
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p->line, a, p->scond, &p->from, p->reg, &p->to);
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break;
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case AWORD:
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fmtprint(fp, "(%d) WORD %D", p->line, &p->to);
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break;
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case ADWORD:
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fmtprint(fp, "(%d) DWORD %D %D", p->line, &p->from, &p->to);
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break;
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}
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if(p->spadj)
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fmtprint(fp, " (spadj%+d)", p->spadj);
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return 0;
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}
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int
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Aconv(Fmt *fp)
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{
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char *s;
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int a;
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a = va_arg(fp->args, int);
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s = "???";
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if(a >= AXXX && a < ALAST)
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s = anames[a];
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return fmtstrcpy(fp, s);
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}
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char* strcond[16] =
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{
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".EQ",
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".NE",
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".HS",
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".LO",
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".MI",
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".PL",
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".VS",
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".VC",
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".HI",
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".LS",
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".GE",
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".LT",
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".GT",
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".LE",
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"",
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".NV"
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};
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int
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Cconv(Fmt *fp)
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{
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char s[20];
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int c;
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c = va_arg(fp->args, int);
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strcpy(s, strcond[c & C_SCOND]);
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if(c & C_SBIT)
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strcat(s, ".S");
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if(c & C_PBIT)
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strcat(s, ".P");
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if(c & C_WBIT)
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strcat(s, ".W");
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if(c & C_UBIT) /* ambiguous with FBIT */
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strcat(s, ".U");
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return fmtstrcpy(fp, s);
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}
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int
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Dconv(Fmt *fp)
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{
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char str[STRINGSZ];
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char *op;
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Adr *a;
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int32 v;
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a = va_arg(fp->args, Adr*);
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switch(a->type) {
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default:
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snprint(str, sizeof str, "GOK-type(%d)", a->type);
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break;
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case D_NONE:
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str[0] = 0;
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if(a->name != D_NONE || a->reg != NREG || a->sym != S)
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snprint(str, sizeof str, "%N(R%d)(NONE)", a, a->reg);
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break;
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case D_CONST:
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if(a->reg == NREG)
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snprint(str, sizeof str, "$%N", a);
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else
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snprint(str, sizeof str, "$%N(R%d)", a, a->reg);
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break;
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case D_CONST2:
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snprint(str, sizeof str, "$%d-%d", a->offset, a->offset2);
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break;
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case D_SHIFT:
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v = a->offset;
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op = "<<>>->@>" + (((v>>5) & 3) << 1);
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if(v & (1<<4))
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snprint(str, sizeof str, "R%d%c%cR%d", v&15, op[0], op[1], (v>>8)&15);
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else
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snprint(str, sizeof str, "R%d%c%c%d", v&15, op[0], op[1], (v>>7)&31);
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if(a->reg != NREG)
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seprint(str+strlen(str), str+sizeof str, "(R%d)", a->reg);
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break;
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case D_OCONST:
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snprint(str, sizeof str, "$*$%N", a);
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if(a->reg != NREG)
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snprint(str, sizeof str, "%N(R%d)(CONST)", a, a->reg);
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break;
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case D_OREG:
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if(a->reg != NREG)
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snprint(str, sizeof str, "%N(R%d)", a, a->reg);
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else
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snprint(str, sizeof str, "%N", a);
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break;
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case D_REG:
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snprint(str, sizeof str, "R%d", a->reg);
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if(a->name != D_NONE || a->sym != S)
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snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg);
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break;
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case D_REGREG:
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snprint(str, sizeof str, "(R%d,R%d)", a->reg, (int)a->offset);
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if(a->name != D_NONE || a->sym != S)
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snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg);
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break;
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case D_FREG:
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snprint(str, sizeof str, "F%d", a->reg);
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if(a->name != D_NONE || a->sym != S)
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snprint(str, sizeof str, "%N(R%d)(REG)", a, a->reg);
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break;
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case D_PSR:
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switch(a->reg) {
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case 0:
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snprint(str, sizeof str, "CPSR");
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break;
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case 1:
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snprint(str, sizeof str, "SPSR");
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break;
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default:
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snprint(str, sizeof str, "PSR%d", a->reg);
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break;
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}
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if(a->name != D_NONE || a->sym != S)
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snprint(str, sizeof str, "%N(PSR%d)(REG)", a, a->reg);
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break;
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case D_FPCR:
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switch(a->reg){
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case 0:
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snprint(str, sizeof str, "FPSR");
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break;
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case 1:
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snprint(str, sizeof str, "FPCR");
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break;
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default:
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snprint(str, sizeof str, "FCR%d", a->reg);
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break;
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}
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if(a->name != D_NONE || a->sym != S)
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snprint(str, sizeof str, "%N(FCR%d)(REG)", a, a->reg);
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break;
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case D_BRANCH: /* botch */
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if(curp->cond != P) {
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v = curp->cond->pc;
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if(a->sym != S)
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snprint(str, sizeof str, "%s+%.5ux(BRANCH)", a->sym->name, v);
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else
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snprint(str, sizeof str, "%.5ux(BRANCH)", v);
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} else
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if(a->sym != S)
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snprint(str, sizeof str, "%s+%d(APC)", a->sym->name, a->offset);
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else
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snprint(str, sizeof str, "%d(APC)", a->offset);
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break;
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case D_FCONST:
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snprint(str, sizeof str, "$%e", ieeedtod(&a->ieee));
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break;
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case D_SCONST:
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snprint(str, sizeof str, "$\"%S\"", a->sval);
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break;
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}
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return fmtstrcpy(fp, str);
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}
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int
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Nconv(Fmt *fp)
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{
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char str[STRINGSZ];
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Adr *a;
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Sym *s;
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a = va_arg(fp->args, Adr*);
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s = a->sym;
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switch(a->name) {
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default:
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sprint(str, "GOK-name(%d)", a->name);
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break;
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case D_NONE:
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sprint(str, "%d", a->offset);
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break;
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case D_EXTERN:
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if(s == S)
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sprint(str, "%d(SB)", a->offset);
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else
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sprint(str, "%s+%d(SB)", s->name, a->offset);
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break;
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case D_STATIC:
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if(s == S)
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sprint(str, "<>+%d(SB)", a->offset);
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else
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sprint(str, "%s<>+%d(SB)", s->name, a->offset);
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break;
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case D_AUTO:
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if(s == S)
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sprint(str, "%d(SP)", a->offset);
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else
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sprint(str, "%s-%d(SP)", s->name, -a->offset);
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break;
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case D_PARAM:
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if(s == S)
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sprint(str, "%d(FP)", a->offset);
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else
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sprint(str, "%s+%d(FP)", s->name, a->offset);
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break;
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}
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return fmtstrcpy(fp, str);
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}
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int
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Sconv(Fmt *fp)
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{
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int i, c;
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char str[STRINGSZ], *p, *a;
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a = va_arg(fp->args, char*);
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p = str;
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for(i=0; i<sizeof(int32); i++) {
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c = a[i] & 0xff;
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if(c >= 'a' && c <= 'z' ||
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c >= 'A' && c <= 'Z' ||
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c >= '0' && c <= '9' ||
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c == ' ' || c == '%') {
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*p++ = c;
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continue;
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}
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*p++ = '\\';
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switch(c) {
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case 0:
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*p++ = 'z';
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continue;
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case '\\':
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case '"':
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*p++ = c;
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continue;
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case '\n':
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*p++ = 'n';
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continue;
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case '\t':
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*p++ = 't';
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continue;
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}
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*p++ = (c>>6) + '0';
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*p++ = ((c>>3) & 7) + '0';
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*p++ = (c & 7) + '0';
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}
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*p = 0;
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return fmtstrcpy(fp, str);
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}
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int
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Iconv(Fmt *fp)
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{
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int i, n;
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uint32 *p;
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char *s;
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Fmt fmt;
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n = fp->prec;
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fp->prec = 0;
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if(!(fp->flags&FmtPrec) || n < 0)
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return fmtstrcpy(fp, "%I");
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fp->flags &= ~FmtPrec;
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p = va_arg(fp->args, uint32*);
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// format into temporary buffer and
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// call fmtstrcpy to handle padding.
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fmtstrinit(&fmt);
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for(i=0; i<n/4; i++) {
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if(i > 0)
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fmtprint(&fmt, " ");
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fmtprint(&fmt, "%.8ux", *p++);
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}
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s = fmtstrflush(&fmt);
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fmtstrcpy(fp, s);
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free(s);
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return 0;
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}
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static char*
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cnames[] =
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{
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[C_ADDR] = "C_ADDR",
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[C_FAUTO] = "C_FAUTO",
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[C_ZFCON] = "C_SFCON",
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[C_SFCON] = "C_SFCON",
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[C_LFCON] = "C_LFCON",
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[C_FCR] = "C_FCR",
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[C_FOREG] = "C_FOREG",
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[C_FREG] = "C_FREG",
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[C_GOK] = "C_GOK",
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[C_HAUTO] = "C_HAUTO",
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[C_HFAUTO] = "C_HFAUTO",
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[C_HFOREG] = "C_HFOREG",
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[C_HOREG] = "C_HOREG",
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[C_HREG] = "C_HREG",
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[C_LACON] = "C_LACON",
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[C_LAUTO] = "C_LAUTO",
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[C_LBRA] = "C_LBRA",
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[C_LCON] = "C_LCON",
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[C_LOREG] = "C_LOREG",
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[C_NCON] = "C_NCON",
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[C_NONE] = "C_NONE",
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[C_PC] = "C_PC",
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[C_PSR] = "C_PSR",
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[C_RACON] = "C_RACON",
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[C_RCON] = "C_RCON",
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[C_REG] = "C_REG",
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[C_REGREG] = "C_REGREG",
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[C_ROREG] = "C_ROREG",
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[C_SAUTO] = "C_SAUTO",
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[C_SBRA] = "C_SBRA",
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[C_SCON] = "C_SCON",
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[C_SHIFT] = "C_SHIFT",
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[C_SOREG] = "C_SOREG",
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[C_SP] = "C_SP",
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[C_SROREG] = "C_SROREG"
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};
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int
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Oconv(Fmt *fp)
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{
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char buf[500];
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int o;
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o = va_arg(fp->args, int);
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if(o < 0 || o >= nelem(cnames) || cnames[o] == nil) {
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snprint(buf, sizeof(buf), "C_%d", o);
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return fmtstrcpy(fp, buf);
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}
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return fmtstrcpy(fp, cnames[o]);
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}
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void
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diag(char *fmt, ...)
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{
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char buf[STRINGSZ], *tn, *sep;
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va_list arg;
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tn = "";
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sep = "";
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if(cursym != S) {
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tn = cursym->name;
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sep = ": ";
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}
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va_start(arg, fmt);
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vseprint(buf, buf+sizeof(buf), fmt, arg);
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va_end(arg);
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print("%s%s%s\n", tn, sep, buf);
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nerrors++;
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if(nerrors > 20) {
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print("too many errors\n");
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errorexit();
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}
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}
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