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// Inferno utils/8l/span.c
// http://code.google.com/p/inferno-os/source/browse/utils/8l/span.c
//
// Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved.
// Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net)
// Portions Copyright © 1997-1999 Vita Nuova Limited
// Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com)
// Portions Copyright © 2004,2006 Bruce Ellis
// Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net)
// Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others
// Portions Copyright © 2009 The Go Authors. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// Instruction layout.
#include <u.h>
#include <libc.h>
#include <bio.h>
#include <link.h>
#include "../cmd/8l/8.out.h"
#include "../runtime/stack.h"
enum
{
MaxAlign = 32, // max data alignment
FuncAlign = 16
};
typedef struct Optab Optab;
struct Optab
{
short as;
uchar* ytab;
uchar prefix;
uchar op[13];
};
enum
{
Yxxx = 0,
Ynone,
Yi0,
Yi1,
Yi8,
Yi32,
Yiauto,
Yal,
Ycl,
Yax,
Ycx,
Yrb,
Yrl,
Yrf,
Yf0,
Yrx,
Ymb,
Yml,
Ym,
Ybr,
Ycol,
Ytls,
Ycs, Yss, Yds, Yes, Yfs, Ygs,
Ygdtr, Yidtr, Yldtr, Ymsw, Ytask,
Ycr0, Ycr1, Ycr2, Ycr3, Ycr4, Ycr5, Ycr6, Ycr7,
Ydr0, Ydr1, Ydr2, Ydr3, Ydr4, Ydr5, Ydr6, Ydr7,
Ytr0, Ytr1, Ytr2, Ytr3, Ytr4, Ytr5, Ytr6, Ytr7,
Ymr, Ymm,
Yxr, Yxm,
Ymax,
Zxxx = 0,
Zlit,
Zlitm_r,
Z_rp,
Zbr,
Zcall,
Zcallcon,
Zcallind,
Zcallindreg,
Zib_,
Zib_rp,
Zibo_m,
Zil_,
Zil_rp,
Zilo_m,
Zjmp,
Zjmpcon,
Zloop,
Zm_o,
Zm_r,
Zm2_r,
Zm_r_xm,
Zm_r_i_xm,
Zaut_r,
Zo_m,
Zpseudo,
Zr_m,
Zr_m_xm,
Zr_m_i_xm,
Zrp_,
Z_ib,
Z_il,
Zm_ibo,
Zm_ilo,
Zib_rr,
Zil_rr,
Zclr,
Zibm_r, /* mmx1,mmx2/mem64,imm8 */
Zbyte,
Zmov,
Zmax,
Px = 0,
Pe = 0x66, /* operand escape */
Pm = 0x0f, /* 2byte opcode escape */
Pq = 0xff, /* both escape */
Pb = 0xfe, /* byte operands */
Pf2 = 0xf2, /* xmm escape 1 */
Pf3 = 0xf3, /* xmm escape 2 */
};
static uchar ycover[Ymax*Ymax];
static int reg[D_NONE];
static void asmins(Link *ctxt, Prog *p);
static uchar ynone[] =
{
Ynone, Ynone, Zlit, 1,
0
};
static uchar ytext[] =
{
Ymb, Yi32, Zpseudo,1,
0
};
static uchar ynop[] =
{
Ynone, Ynone, Zpseudo,0,
Ynone, Yiauto, Zpseudo,0,
Ynone, Yml, Zpseudo,0,
Ynone, Yrf, Zpseudo,0,
Yiauto, Ynone, Zpseudo,0,
Ynone, Yxr, Zpseudo,0,
Yml, Ynone, Zpseudo,0,
Yrf, Ynone, Zpseudo,0,
Yxr, Ynone, Zpseudo,1,
0
};
static uchar yfuncdata[] =
{
Yi32, Ym, Zpseudo, 0,
0
};
static uchar ypcdata[] =
{
Yi32, Yi32, Zpseudo, 0,
0,
};
static uchar yxorb[] =
{
Yi32, Yal, Zib_, 1,
Yi32, Ymb, Zibo_m, 2,
Yrb, Ymb, Zr_m, 1,
Ymb, Yrb, Zm_r, 1,
0
};
static uchar yxorl[] =
{
Yi8, Yml, Zibo_m, 2,
Yi32, Yax, Zil_, 1,
Yi32, Yml, Zilo_m, 2,
Yrl, Yml, Zr_m, 1,
Yml, Yrl, Zm_r, 1,
0
};
static uchar yaddl[] =
{
Yi8, Yml, Zibo_m, 2,
Yi32, Yax, Zil_, 1,
Yi32, Yml, Zilo_m, 2,
Yrl, Yml, Zr_m, 1,
Yml, Yrl, Zm_r, 1,
0
};
static uchar yincb[] =
{
Ynone, Ymb, Zo_m, 2,
0
};
static uchar yincl[] =
{
Ynone, Yrl, Z_rp, 1,
Ynone, Yml, Zo_m, 2,
0
};
static uchar ycmpb[] =
{
Yal, Yi32, Z_ib, 1,
Ymb, Yi32, Zm_ibo, 2,
Ymb, Yrb, Zm_r, 1,
Yrb, Ymb, Zr_m, 1,
0
};
static uchar ycmpl[] =
{
Yml, Yi8, Zm_ibo, 2,
Yax, Yi32, Z_il, 1,
Yml, Yi32, Zm_ilo, 2,
Yml, Yrl, Zm_r, 1,
Yrl, Yml, Zr_m, 1,
0
};
static uchar yshb[] =
{
Yi1, Ymb, Zo_m, 2,
Yi32, Ymb, Zibo_m, 2,
Ycx, Ymb, Zo_m, 2,
0
};
static uchar yshl[] =
{
Yi1, Yml, Zo_m, 2,
Yi32, Yml, Zibo_m, 2,
Ycl, Yml, Zo_m, 2,
Ycx, Yml, Zo_m, 2,
0
};
static uchar ytestb[] =
{
Yi32, Yal, Zib_, 1,
Yi32, Ymb, Zibo_m, 2,
Yrb, Ymb, Zr_m, 1,
Ymb, Yrb, Zm_r, 1,
0
};
static uchar ytestl[] =
{
Yi32, Yax, Zil_, 1,
Yi32, Yml, Zilo_m, 2,
Yrl, Yml, Zr_m, 1,
Yml, Yrl, Zm_r, 1,
0
};
static uchar ymovb[] =
{
Yrb, Ymb, Zr_m, 1,
Ymb, Yrb, Zm_r, 1,
Yi32, Yrb, Zib_rp, 1,
Yi32, Ymb, Zibo_m, 2,
0
};
static uchar ymovw[] =
{
Yrl, Yml, Zr_m, 1,
Yml, Yrl, Zm_r, 1,
Yi0, Yrl, Zclr, 1+2,
// Yi0, Yml, Zibo_m, 2, // shorter but slower AND $0,dst
Yi32, Yrl, Zil_rp, 1,
Yi32, Yml, Zilo_m, 2,
Yiauto, Yrl, Zaut_r, 1,
0
};
static uchar ymovl[] =
{
Yrl, Yml, Zr_m, 1,
Yml, Yrl, Zm_r, 1,
Yi0, Yrl, Zclr, 1+2,
// Yi0, Yml, Zibo_m, 2, // shorter but slower AND $0,dst
Yi32, Yrl, Zil_rp, 1,
Yi32, Yml, Zilo_m, 2,
Yml, Yxr, Zm_r_xm, 2, // XMM MOVD (32 bit)
Yxr, Yml, Zr_m_xm, 2, // XMM MOVD (32 bit)
Yiauto, Yrl, Zaut_r, 1,
0
};
static uchar ymovq[] =
{
Yml, Yxr, Zm_r_xm, 2,
0
};
static uchar ym_rl[] =
{
Ym, Yrl, Zm_r, 1,
0
};
static uchar yrl_m[] =
{
Yrl, Ym, Zr_m, 1,
0
};
static uchar ymb_rl[] =
{
Ymb, Yrl, Zm_r, 1,
0
};
static uchar yml_rl[] =
{
Yml, Yrl, Zm_r, 1,
0
};
static uchar yrb_mb[] =
{
Yrb, Ymb, Zr_m, 1,
0
};
static uchar yrl_ml[] =
{
Yrl, Yml, Zr_m, 1,
0
};
static uchar yml_mb[] =
{
Yrb, Ymb, Zr_m, 1,
Ymb, Yrb, Zm_r, 1,
0
};
static uchar yxchg[] =
{
Yax, Yrl, Z_rp, 1,
Yrl, Yax, Zrp_, 1,
Yrl, Yml, Zr_m, 1,
Yml, Yrl, Zm_r, 1,
0
};
static uchar ydivl[] =
{
Yml, Ynone, Zm_o, 2,
0
};
static uchar ydivb[] =
{
Ymb, Ynone, Zm_o, 2,
0
};
static uchar yimul[] =
{
Yml, Ynone, Zm_o, 2,
Yi8, Yrl, Zib_rr, 1,
Yi32, Yrl, Zil_rr, 1,
0
};
static uchar ybyte[] =
{
Yi32, Ynone, Zbyte, 1,
0
};
static uchar yin[] =
{
Yi32, Ynone, Zib_, 1,
Ynone, Ynone, Zlit, 1,
0
};
static uchar yint[] =
{
Yi32, Ynone, Zib_, 1,
0
};
static uchar ypushl[] =
{
Yrl, Ynone, Zrp_, 1,
Ym, Ynone, Zm_o, 2,
Yi8, Ynone, Zib_, 1,
Yi32, Ynone, Zil_, 1,
0
};
static uchar ypopl[] =
{
Ynone, Yrl, Z_rp, 1,
Ynone, Ym, Zo_m, 2,
0
};
static uchar ybswap[] =
{
Ynone, Yrl, Z_rp, 1,
0,
};
static uchar yscond[] =
{
Ynone, Ymb, Zo_m, 2,
0
};
static uchar yjcond[] =
{
Ynone, Ybr, Zbr, 0,
Yi0, Ybr, Zbr, 0,
Yi1, Ybr, Zbr, 1,
0
};
static uchar yloop[] =
{
Ynone, Ybr, Zloop, 1,
0
};
static uchar ycall[] =
{
Ynone, Yml, Zcallindreg, 0,
Yrx, Yrx, Zcallindreg, 2,
Ynone, Ycol, Zcallind, 2,
Ynone, Ybr, Zcall, 0,
Ynone, Yi32, Zcallcon, 1,
0
};
static uchar yduff[] =
{
Ynone, Yi32, Zcall, 1,
0
};
static uchar yjmp[] =
{
Ynone, Yml, Zo_m, 2,
Ynone, Ybr, Zjmp, 0,
Ynone, Yi32, Zjmpcon, 1,
0
};
static uchar yfmvd[] =
{
Ym, Yf0, Zm_o, 2,
Yf0, Ym, Zo_m, 2,
Yrf, Yf0, Zm_o, 2,
Yf0, Yrf, Zo_m, 2,
0
};
static uchar yfmvdp[] =
{
Yf0, Ym, Zo_m, 2,
Yf0, Yrf, Zo_m, 2,
0
};
static uchar yfmvf[] =
{
Ym, Yf0, Zm_o, 2,
Yf0, Ym, Zo_m, 2,
0
};
static uchar yfmvx[] =
{
Ym, Yf0, Zm_o, 2,
0
};
static uchar yfmvp[] =
{
Yf0, Ym, Zo_m, 2,
0
};
static uchar yfcmv[] =
{
Yrf, Yf0, Zm_o, 2,
0
};
static uchar yfadd[] =
{
Ym, Yf0, Zm_o, 2,
Yrf, Yf0, Zm_o, 2,
Yf0, Yrf, Zo_m, 2,
0
};
static uchar yfaddp[] =
{
Yf0, Yrf, Zo_m, 2,
0
};
static uchar yfxch[] =
{
Yf0, Yrf, Zo_m, 2,
Yrf, Yf0, Zm_o, 2,
0
};
static uchar ycompp[] =
{
Yf0, Yrf, Zo_m, 2, /* botch is really f0,f1 */
0
};
static uchar ystsw[] =
{
Ynone, Ym, Zo_m, 2,
Ynone, Yax, Zlit, 1,
0
};
static uchar ystcw[] =
{
Ynone, Ym, Zo_m, 2,
Ym, Ynone, Zm_o, 2,
0
};
static uchar ysvrs[] =
{
Ynone, Ym, Zo_m, 2,
Ym, Ynone, Zm_o, 2,
0
};
static uchar ymskb[] =
{
Yxr, Yrl, Zm_r_xm, 2,
Ymr, Yrl, Zm_r_xm, 1,
0
};
static uchar yxm[] =
{
Yxm, Yxr, Zm_r_xm, 1,
0
};
static uchar yxcvm1[] =
{
Yxm, Yxr, Zm_r_xm, 2,
Yxm, Ymr, Zm_r_xm, 2,
0
};
static uchar yxcvm2[] =
{
Yxm, Yxr, Zm_r_xm, 2,
Ymm, Yxr, Zm_r_xm, 2,
0
};
static uchar yxmq[] =
{
Yxm, Yxr, Zm_r_xm, 2,
0
};
static uchar yxr[] =
{
Yxr, Yxr, Zm_r_xm, 1,
0
};
static uchar yxr_ml[] =
{
Yxr, Yml, Zr_m_xm, 1,
0
};
static uchar yxcmp[] =
{
Yxm, Yxr, Zm_r_xm, 1,
0
};
static uchar yxcmpi[] =
{
Yxm, Yxr, Zm_r_i_xm, 2,
0
};
static uchar yxmov[] =
{
Yxm, Yxr, Zm_r_xm, 1,
Yxr, Yxm, Zr_m_xm, 1,
0
};
static uchar yxcvfl[] =
{
Yxm, Yrl, Zm_r_xm, 1,
0
};
static uchar yxcvlf[] =
{
Yml, Yxr, Zm_r_xm, 1,
0
};
/*
static uchar yxcvfq[] =
{
Yxm, Yrl, Zm_r_xm, 2,
0
};
static uchar yxcvqf[] =
{
Yml, Yxr, Zm_r_xm, 2,
0
};
*/
static uchar yxrrl[] =
{
Yxr, Yrl, Zm_r, 1,
0
};
static uchar yprefetch[] =
{
Ym, Ynone, Zm_o, 2,
0,
};
static uchar yaes[] =
{
Yxm, Yxr, Zlitm_r, 2,
0
};
static uchar yinsrd[] =
{
Yml, Yxr, Zibm_r, 2,
0
};
static uchar ymshufb[] =
{
Yxm, Yxr, Zm2_r, 2,
0
};
static Optab optab[] =
/* as, ytab, andproto, opcode */
{
{ AXXX },
{ AAAA, ynone, Px, {0x37} },
{ AAAD, ynone, Px, {0xd5,0x0a} },
{ AAAM, ynone, Px, {0xd4,0x0a} },
{ AAAS, ynone, Px, {0x3f} },
{ AADCB, yxorb, Pb, {0x14,0x80,(02),0x10,0x10} },
{ AADCL, yxorl, Px, {0x83,(02),0x15,0x81,(02),0x11,0x13} },
{ AADCW, yxorl, Pe, {0x83,(02),0x15,0x81,(02),0x11,0x13} },
{ AADDB, yxorb, Px, {0x04,0x80,(00),0x00,0x02} },
{ AADDL, yaddl, Px, {0x83,(00),0x05,0x81,(00),0x01,0x03} },
{ AADDW, yaddl, Pe, {0x83,(00),0x05,0x81,(00),0x01,0x03} },
{ AADJSP },
{ AANDB, yxorb, Pb, {0x24,0x80,(04),0x20,0x22} },
{ AANDL, yxorl, Px, {0x83,(04),0x25,0x81,(04),0x21,0x23} },
{ AANDW, yxorl, Pe, {0x83,(04),0x25,0x81,(04),0x21,0x23} },
{ AARPL, yrl_ml, Px, {0x63} },
{ ABOUNDL, yrl_m, Px, {0x62} },
{ ABOUNDW, yrl_m, Pe, {0x62} },
{ ABSFL, yml_rl, Pm, {0xbc} },
{ ABSFW, yml_rl, Pq, {0xbc} },
{ ABSRL, yml_rl, Pm, {0xbd} },
{ ABSRW, yml_rl, Pq, {0xbd} },
{ ABTL, yml_rl, Pm, {0xa3} },
{ ABTW, yml_rl, Pq, {0xa3} },
{ ABTCL, yml_rl, Pm, {0xbb} },
{ ABTCW, yml_rl, Pq, {0xbb} },
{ ABTRL, yml_rl, Pm, {0xb3} },
{ ABTRW, yml_rl, Pq, {0xb3} },
{ ABTSL, yml_rl, Pm, {0xab} },
{ ABTSW, yml_rl, Pq, {0xab} },
{ ABYTE, ybyte, Px, {1} },
{ ACALL, ycall, Px, {0xff,(02),0xff,(0x15),0xe8} },
{ ACLC, ynone, Px, {0xf8} },
{ ACLD, ynone, Px, {0xfc} },
{ ACLI, ynone, Px, {0xfa} },
{ ACLTS, ynone, Pm, {0x06} },
{ ACMC, ynone, Px, {0xf5} },
{ ACMPB, ycmpb, Pb, {0x3c,0x80,(07),0x38,0x3a} },
{ ACMPL, ycmpl, Px, {0x83,(07),0x3d,0x81,(07),0x39,0x3b} },
{ ACMPW, ycmpl, Pe, {0x83,(07),0x3d,0x81,(07),0x39,0x3b} },
{ ACMPSB, ynone, Pb, {0xa6} },
{ ACMPSL, ynone, Px, {0xa7} },
{ ACMPSW, ynone, Pe, {0xa7} },
{ ADAA, ynone, Px, {0x27} },
{ ADAS, ynone, Px, {0x2f} },
{ ADATA },
{ ADECB, yincb, Pb, {0xfe,(01)} },
{ ADECL, yincl, Px, {0x48,0xff,(01)} },
{ ADECW, yincl, Pe, {0x48,0xff,(01)} },
{ ADIVB, ydivb, Pb, {0xf6,(06)} },
{ ADIVL, ydivl, Px, {0xf7,(06)} },
{ ADIVW, ydivl, Pe, {0xf7,(06)} },
{ AENTER }, /* botch */
{ AGLOBL },
{ AGOK },
{ AHISTORY },
{ AHLT, ynone, Px, {0xf4} },
{ AIDIVB, ydivb, Pb, {0xf6,(07)} },
{ AIDIVL, ydivl, Px, {0xf7,(07)} },
{ AIDIVW, ydivl, Pe, {0xf7,(07)} },
{ AIMULB, ydivb, Pb, {0xf6,(05)} },
{ AIMULL, yimul, Px, {0xf7,(05),0x6b,0x69} },
{ AIMULW, yimul, Pe, {0xf7,(05),0x6b,0x69} },
{ AINB, yin, Pb, {0xe4,0xec} },
{ AINL, yin, Px, {0xe5,0xed} },
{ AINW, yin, Pe, {0xe5,0xed} },
{ AINCB, yincb, Pb, {0xfe,(00)} },
{ AINCL, yincl, Px, {0x40,0xff,(00)} },
{ AINCW, yincl, Pe, {0x40,0xff,(00)} },
{ AINSB, ynone, Pb, {0x6c} },
{ AINSL, ynone, Px, {0x6d} },
{ AINSW, ynone, Pe, {0x6d} },
{ AINT, yint, Px, {0xcd} },
{ AINTO, ynone, Px, {0xce} },
{ AIRETL, ynone, Px, {0xcf} },
{ AIRETW, ynone, Pe, {0xcf} },
{ AJCC, yjcond, Px, {0x73,0x83,(00)} },
{ AJCS, yjcond, Px, {0x72,0x82} },
{ AJCXZL, yloop, Px, {0xe3} },
{ AJCXZW, yloop, Px, {0xe3} },
{ AJEQ, yjcond, Px, {0x74,0x84} },
{ AJGE, yjcond, Px, {0x7d,0x8d} },
{ AJGT, yjcond, Px, {0x7f,0x8f} },
{ AJHI, yjcond, Px, {0x77,0x87} },
{ AJLE, yjcond, Px, {0x7e,0x8e} },
{ AJLS, yjcond, Px, {0x76,0x86} },
{ AJLT, yjcond, Px, {0x7c,0x8c} },
{ AJMI, yjcond, Px, {0x78,0x88} },
{ AJMP, yjmp, Px, {0xff,(04),0xeb,0xe9} },
{ AJNE, yjcond, Px, {0x75,0x85} },
{ AJOC, yjcond, Px, {0x71,0x81,(00)} },
{ AJOS, yjcond, Px, {0x70,0x80,(00)} },
{ AJPC, yjcond, Px, {0x7b,0x8b} },
{ AJPL, yjcond, Px, {0x79,0x89} },
{ AJPS, yjcond, Px, {0x7a,0x8a} },
{ ALAHF, ynone, Px, {0x9f} },
{ ALARL, yml_rl, Pm, {0x02} },
{ ALARW, yml_rl, Pq, {0x02} },
{ ALEAL, ym_rl, Px, {0x8d} },
{ ALEAW, ym_rl, Pe, {0x8d} },
{ ALEAVEL, ynone, Px, {0xc9} },
{ ALEAVEW, ynone, Pe, {0xc9} },
{ ALOCK, ynone, Px, {0xf0} },
{ ALODSB, ynone, Pb, {0xac} },
{ ALODSL, ynone, Px, {0xad} },
{ ALODSW, ynone, Pe, {0xad} },
{ ALONG, ybyte, Px, {4} },
{ ALOOP, yloop, Px, {0xe2} },
{ ALOOPEQ, yloop, Px, {0xe1} },
{ ALOOPNE, yloop, Px, {0xe0} },
{ ALSLL, yml_rl, Pm, {0x03 } },
{ ALSLW, yml_rl, Pq, {0x03 } },
{ AMOVB, ymovb, Pb, {0x88,0x8a,0xb0,0xc6,(00)} },
{ AMOVL, ymovl, Px, {0x89,0x8b,0x31,0x83,(04),0xb8,0xc7,(00),Pe,0x6e,Pe,0x7e,0} },
{ AMOVW, ymovw, Pe, {0x89,0x8b,0x31,0x83,(04),0xb8,0xc7,(00),0} },
{ AMOVQ, ymovq, Pf3, {0x7e} },
{ AMOVBLSX, ymb_rl, Pm, {0xbe} },
{ AMOVBLZX, ymb_rl, Pm, {0xb6} },
{ AMOVBWSX, ymb_rl, Pq, {0xbe} },
{ AMOVBWZX, ymb_rl, Pq, {0xb6} },
{ AMOVWLSX, yml_rl, Pm, {0xbf} },
{ AMOVWLZX, yml_rl, Pm, {0xb7} },
{ AMOVSB, ynone, Pb, {0xa4} },
{ AMOVSL, ynone, Px, {0xa5} },
{ AMOVSW, ynone, Pe, {0xa5} },
{ AMULB, ydivb, Pb, {0xf6,(04)} },
{ AMULL, ydivl, Px, {0xf7,(04)} },
{ AMULW, ydivl, Pe, {0xf7,(04)} },
{ ANAME },
{ ANEGB, yscond, Px, {0xf6,(03)} },
{ ANEGL, yscond, Px, {0xf7,(03)} },
{ ANEGW, yscond, Pe, {0xf7,(03)} },
{ ANOP, ynop, Px, {0,0} },
{ ANOTB, yscond, Px, {0xf6,(02)} },
{ ANOTL, yscond, Px, {0xf7,(02)} },
{ ANOTW, yscond, Pe, {0xf7,(02)} },
{ AORB, yxorb, Pb, {0x0c,0x80,(01),0x08,0x0a} },
{ AORL, yxorl, Px, {0x83,(01),0x0d,0x81,(01),0x09,0x0b} },
{ AORW, yxorl, Pe, {0x83,(01),0x0d,0x81,(01),0x09,0x0b} },
{ AOUTB, yin, Pb, {0xe6,0xee} },
{ AOUTL, yin, Px, {0xe7,0xef} },
{ AOUTW, yin, Pe, {0xe7,0xef} },
{ AOUTSB, ynone, Pb, {0x6e} },
{ AOUTSL, ynone, Px, {0x6f} },
{ AOUTSW, ynone, Pe, {0x6f} },
{ APAUSE, ynone, Px, {0xf3,0x90} },
{ APOPAL, ynone, Px, {0x61} },
{ APOPAW, ynone, Pe, {0x61} },
{ APOPFL, ynone, Px, {0x9d} },
{ APOPFW, ynone, Pe, {0x9d} },
{ APOPL, ypopl, Px, {0x58,0x8f,(00)} },
{ APOPW, ypopl, Pe, {0x58,0x8f,(00)} },
{ APUSHAL, ynone, Px, {0x60} },
{ APUSHAW, ynone, Pe, {0x60} },
{ APUSHFL, ynone, Px, {0x9c} },
{ APUSHFW, ynone, Pe, {0x9c} },
{ APUSHL, ypushl, Px, {0x50,0xff,(06),0x6a,0x68} },
{ APUSHW, ypushl, Pe, {0x50,0xff,(06),0x6a,0x68} },
{ ARCLB, yshb, Pb, {0xd0,(02),0xc0,(02),0xd2,(02)} },
{ ARCLL, yshl, Px, {0xd1,(02),0xc1,(02),0xd3,(02),0xd3,(02)} },
{ ARCLW, yshl, Pe, {0xd1,(02),0xc1,(02),0xd3,(02),0xd3,(02)} },
{ ARCRB, yshb, Pb, {0xd0,(03),0xc0,(03),0xd2,(03)} },
{ ARCRL, yshl, Px, {0xd1,(03),0xc1,(03),0xd3,(03),0xd3,(03)} },
{ ARCRW, yshl, Pe, {0xd1,(03),0xc1,(03),0xd3,(03),0xd3,(03)} },
{ AREP, ynone, Px, {0xf3} },
{ AREPN, ynone, Px, {0xf2} },
{ ARET, ynone, Px, {0xc3} },
{ AROLB, yshb, Pb, {0xd0,(00),0xc0,(00),0xd2,(00)} },
{ AROLL, yshl, Px, {0xd1,(00),0xc1,(00),0xd3,(00),0xd3,(00)} },
{ AROLW, yshl, Pe, {0xd1,(00),0xc1,(00),0xd3,(00),0xd3,(00)} },
{ ARORB, yshb, Pb, {0xd0,(01),0xc0,(01),0xd2,(01)} },
{ ARORL, yshl, Px, {0xd1,(01),0xc1,(01),0xd3,(01),0xd3,(01)} },
{ ARORW, yshl, Pe, {0xd1,(01),0xc1,(01),0xd3,(01),0xd3,(01)} },
{ ASAHF, ynone, Px, {0x9e} },
{ ASALB, yshb, Pb, {0xd0,(04),0xc0,(04),0xd2,(04)} },
{ ASALL, yshl, Px, {0xd1,(04),0xc1,(04),0xd3,(04),0xd3,(04)} },
{ ASALW, yshl, Pe, {0xd1,(04),0xc1,(04),0xd3,(04),0xd3,(04)} },
{ ASARB, yshb, Pb, {0xd0,(07),0xc0,(07),0xd2,(07)} },
{ ASARL, yshl, Px, {0xd1,(07),0xc1,(07),0xd3,(07),0xd3,(07)} },
{ ASARW, yshl, Pe, {0xd1,(07),0xc1,(07),0xd3,(07),0xd3,(07)} },
{ ASBBB, yxorb, Pb, {0x1c,0x80,(03),0x18,0x1a} },
{ ASBBL, yxorl, Px, {0x83,(03),0x1d,0x81,(03),0x19,0x1b} },
{ ASBBW, yxorl, Pe, {0x83,(03),0x1d,0x81,(03),0x19,0x1b} },
{ ASCASB, ynone, Pb, {0xae} },
{ ASCASL, ynone, Px, {0xaf} },
{ ASCASW, ynone, Pe, {0xaf} },
{ ASETCC, yscond, Pm, {0x93,(00)} },
{ ASETCS, yscond, Pm, {0x92,(00)} },
{ ASETEQ, yscond, Pm, {0x94,(00)} },
{ ASETGE, yscond, Pm, {0x9d,(00)} },
{ ASETGT, yscond, Pm, {0x9f,(00)} },
{ ASETHI, yscond, Pm, {0x97,(00)} },
{ ASETLE, yscond, Pm, {0x9e,(00)} },
{ ASETLS, yscond, Pm, {0x96,(00)} },
{ ASETLT, yscond, Pm, {0x9c,(00)} },
{ ASETMI, yscond, Pm, {0x98,(00)} },
{ ASETNE, yscond, Pm, {0x95,(00)} },
{ ASETOC, yscond, Pm, {0x91,(00)} },
{ ASETOS, yscond, Pm, {0x90,(00)} },
{ ASETPC, yscond, Pm, {0x9b,(00)} },
{ ASETPL, yscond, Pm, {0x99,(00)} },
{ ASETPS, yscond, Pm, {0x9a,(00)} },
{ ACDQ, ynone, Px, {0x99} },
{ ACWD, ynone, Pe, {0x99} },
{ ASHLB, yshb, Pb, {0xd0,(04),0xc0,(04),0xd2,(04)} },
{ ASHLL, yshl, Px, {0xd1,(04),0xc1,(04),0xd3,(04),0xd3,(04)} },
{ ASHLW, yshl, Pe, {0xd1,(04),0xc1,(04),0xd3,(04),0xd3,(04)} },
{ ASHRB, yshb, Pb, {0xd0,(05),0xc0,(05),0xd2,(05)} },
{ ASHRL, yshl, Px, {0xd1,(05),0xc1,(05),0xd3,(05),0xd3,(05)} },
{ ASHRW, yshl, Pe, {0xd1,(05),0xc1,(05),0xd3,(05),0xd3,(05)} },
{ ASTC, ynone, Px, {0xf9} },
{ ASTD, ynone, Px, {0xfd} },
{ ASTI, ynone, Px, {0xfb} },
{ ASTOSB, ynone, Pb, {0xaa} },
{ ASTOSL, ynone, Px, {0xab} },
{ ASTOSW, ynone, Pe, {0xab} },
{ ASUBB, yxorb, Pb, {0x2c,0x80,(05),0x28,0x2a} },
{ ASUBL, yaddl, Px, {0x83,(05),0x2d,0x81,(05),0x29,0x2b} },
{ ASUBW, yaddl, Pe, {0x83,(05),0x2d,0x81,(05),0x29,0x2b} },
{ ASYSCALL, ynone, Px, {0xcd,100} },
{ ATESTB, ytestb, Pb, {0xa8,0xf6,(00),0x84,0x84} },
{ ATESTL, ytestl, Px, {0xa9,0xf7,(00),0x85,0x85} },
{ ATESTW, ytestl, Pe, {0xa9,0xf7,(00),0x85,0x85} },
{ ATEXT, ytext, Px },
{ AVERR, ydivl, Pm, {0x00,(04)} },
{ AVERW, ydivl, Pm, {0x00,(05)} },
{ AWAIT, ynone, Px, {0x9b} },
{ AWORD, ybyte, Px, {2} },
{ AXCHGB, yml_mb, Pb, {0x86,0x86} },
{ AXCHGL, yxchg, Px, {0x90,0x90,0x87,0x87} },
{ AXCHGW, yxchg, Pe, {0x90,0x90,0x87,0x87} },
{ AXLAT, ynone, Px, {0xd7} },
{ AXORB, yxorb, Pb, {0x34,0x80,(06),0x30,0x32} },
{ AXORL, yxorl, Px, {0x83,(06),0x35,0x81,(06),0x31,0x33} },
{ AXORW, yxorl, Pe, {0x83,(06),0x35,0x81,(06),0x31,0x33} },
{ AFMOVB, yfmvx, Px, {0xdf,(04)} },
{ AFMOVBP, yfmvp, Px, {0xdf,(06)} },
{ AFMOVD, yfmvd, Px, {0xdd,(00),0xdd,(02),0xd9,(00),0xdd,(02)} },
{ AFMOVDP, yfmvdp, Px, {0xdd,(03),0xdd,(03)} },
{ AFMOVF, yfmvf, Px, {0xd9,(00),0xd9,(02)} },
{ AFMOVFP, yfmvp, Px, {0xd9,(03)} },
{ AFMOVL, yfmvf, Px, {0xdb,(00),0xdb,(02)} },
{ AFMOVLP, yfmvp, Px, {0xdb,(03)} },
{ AFMOVV, yfmvx, Px, {0xdf,(05)} },
{ AFMOVVP, yfmvp, Px, {0xdf,(07)} },
{ AFMOVW, yfmvf, Px, {0xdf,(00),0xdf,(02)} },
{ AFMOVWP, yfmvp, Px, {0xdf,(03)} },
{ AFMOVX, yfmvx, Px, {0xdb,(05)} },
{ AFMOVXP, yfmvp, Px, {0xdb,(07)} },
{ AFCOMB },
{ AFCOMBP },
{ AFCOMD, yfadd, Px, {0xdc,(02),0xd8,(02),0xdc,(02)} }, /* botch */
{ AFCOMDP, yfadd, Px, {0xdc,(03),0xd8,(03),0xdc,(03)} }, /* botch */
{ AFCOMDPP, ycompp, Px, {0xde,(03)} },
{ AFCOMF, yfmvx, Px, {0xd8,(02)} },
{ AFCOMFP, yfmvx, Px, {0xd8,(03)} },
{ AFCOMI, yfmvx, Px, {0xdb,(06)} },
{ AFCOMIP, yfmvx, Px, {0xdf,(06)} },
{ AFCOML, yfmvx, Px, {0xda,(02)} },
{ AFCOMLP, yfmvx, Px, {0xda,(03)} },
{ AFCOMW, yfmvx, Px, {0xde,(02)} },
{ AFCOMWP, yfmvx, Px, {0xde,(03)} },
{ AFUCOM, ycompp, Px, {0xdd,(04)} },
{ AFUCOMI, ycompp, Px, {0xdb,(05)} },
{ AFUCOMIP, ycompp, Px, {0xdf,(05)} },
{ AFUCOMP, ycompp, Px, {0xdd,(05)} },
{ AFUCOMPP, ycompp, Px, {0xda,(13)} },
{ AFADDDP, yfaddp, Px, {0xde,(00)} },
{ AFADDW, yfmvx, Px, {0xde,(00)} },
{ AFADDL, yfmvx, Px, {0xda,(00)} },
{ AFADDF, yfmvx, Px, {0xd8,(00)} },
{ AFADDD, yfadd, Px, {0xdc,(00),0xd8,(00),0xdc,(00)} },
{ AFMULDP, yfaddp, Px, {0xde,(01)} },
{ AFMULW, yfmvx, Px, {0xde,(01)} },
{ AFMULL, yfmvx, Px, {0xda,(01)} },
{ AFMULF, yfmvx, Px, {0xd8,(01)} },
{ AFMULD, yfadd, Px, {0xdc,(01),0xd8,(01),0xdc,(01)} },
{ AFSUBDP, yfaddp, Px, {0xde,(05)} },
{ AFSUBW, yfmvx, Px, {0xde,(04)} },
{ AFSUBL, yfmvx, Px, {0xda,(04)} },
{ AFSUBF, yfmvx, Px, {0xd8,(04)} },
{ AFSUBD, yfadd, Px, {0xdc,(04),0xd8,(04),0xdc,(05)} },
{ AFSUBRDP, yfaddp, Px, {0xde,(04)} },
{ AFSUBRW, yfmvx, Px, {0xde,(05)} },
{ AFSUBRL, yfmvx, Px, {0xda,(05)} },
{ AFSUBRF, yfmvx, Px, {0xd8,(05)} },
{ AFSUBRD, yfadd, Px, {0xdc,(05),0xd8,(05),0xdc,(04)} },
{ AFDIVDP, yfaddp, Px, {0xde,(07)} },
{ AFDIVW, yfmvx, Px, {0xde,(06)} },
{ AFDIVL, yfmvx, Px, {0xda,(06)} },
{ AFDIVF, yfmvx, Px, {0xd8,(06)} },
{ AFDIVD, yfadd, Px, {0xdc,(06),0xd8,(06),0xdc,(07)} },
{ AFDIVRDP, yfaddp, Px, {0xde,(06)} },
{ AFDIVRW, yfmvx, Px, {0xde,(07)} },
{ AFDIVRL, yfmvx, Px, {0xda,(07)} },
{ AFDIVRF, yfmvx, Px, {0xd8,(07)} },
{ AFDIVRD, yfadd, Px, {0xdc,(07),0xd8,(07),0xdc,(06)} },
{ AFXCHD, yfxch, Px, {0xd9,(01),0xd9,(01)} },
{ AFFREE },
{ AFLDCW, ystcw, Px, {0xd9,(05),0xd9,(05)} },
{ AFLDENV, ystcw, Px, {0xd9,(04),0xd9,(04)} },
{ AFRSTOR, ysvrs, Px, {0xdd,(04),0xdd,(04)} },
{ AFSAVE, ysvrs, Px, {0xdd,(06),0xdd,(06)} },
{ AFSTCW, ystcw, Px, {0xd9,(07),0xd9,(07)} },
{ AFSTENV, ystcw, Px, {0xd9,(06),0xd9,(06)} },
{ AFSTSW, ystsw, Px, {0xdd,(07),0xdf,0xe0} },
{ AF2XM1, ynone, Px, {0xd9, 0xf0} },
{ AFABS, ynone, Px, {0xd9, 0xe1} },
{ AFCHS, ynone, Px, {0xd9, 0xe0} },
{ AFCLEX, ynone, Px, {0xdb, 0xe2} },
{ AFCOS, ynone, Px, {0xd9, 0xff} },
{ AFDECSTP, ynone, Px, {0xd9, 0xf6} },
{ AFINCSTP, ynone, Px, {0xd9, 0xf7} },
{ AFINIT, ynone, Px, {0xdb, 0xe3} },
{ AFLD1, ynone, Px, {0xd9, 0xe8} },
{ AFLDL2E, ynone, Px, {0xd9, 0xea} },
{ AFLDL2T, ynone, Px, {0xd9, 0xe9} },
{ AFLDLG2, ynone, Px, {0xd9, 0xec} },
{ AFLDLN2, ynone, Px, {0xd9, 0xed} },
{ AFLDPI, ynone, Px, {0xd9, 0xeb} },
{ AFLDZ, ynone, Px, {0xd9, 0xee} },
{ AFNOP, ynone, Px, {0xd9, 0xd0} },
{ AFPATAN, ynone, Px, {0xd9, 0xf3} },
{ AFPREM, ynone, Px, {0xd9, 0xf8} },
{ AFPREM1, ynone, Px, {0xd9, 0xf5} },
{ AFPTAN, ynone, Px, {0xd9, 0xf2} },
{ AFRNDINT, ynone, Px, {0xd9, 0xfc} },
{ AFSCALE, ynone, Px, {0xd9, 0xfd} },
{ AFSIN, ynone, Px, {0xd9, 0xfe} },
{ AFSINCOS, ynone, Px, {0xd9, 0xfb} },
{ AFSQRT, ynone, Px, {0xd9, 0xfa} },
{ AFTST, ynone, Px, {0xd9, 0xe4} },
{ AFXAM, ynone, Px, {0xd9, 0xe5} },
{ AFXTRACT, ynone, Px, {0xd9, 0xf4} },
{ AFYL2X, ynone, Px, {0xd9, 0xf1} },
{ AFYL2XP1, ynone, Px, {0xd9, 0xf9} },
{ AEND },
{ ADYNT_ },
{ AINIT_ },
{ ASIGNAME },
{ ACMPXCHGB, yrb_mb, Pm, {0xb0} },
{ ACMPXCHGL, yrl_ml, Pm, {0xb1} },
{ ACMPXCHGW, yrl_ml, Pm, {0xb1} },
{ ACMPXCHG8B, yscond, Pm, {0xc7,(01)} },
{ ACPUID, ynone, Pm, {0xa2} },
{ ARDTSC, ynone, Pm, {0x31} },
{ AXADDB, yrb_mb, Pb, {0x0f,0xc0} },
{ AXADDL, yrl_ml, Pm, {0xc1} },
{ AXADDW, yrl_ml, Pe, {0x0f,0xc1} },
{ ACMOVLCC, yml_rl, Pm, {0x43} },
{ ACMOVLCS, yml_rl, Pm, {0x42} },
{ ACMOVLEQ, yml_rl, Pm, {0x44} },
{ ACMOVLGE, yml_rl, Pm, {0x4d} },
{ ACMOVLGT, yml_rl, Pm, {0x4f} },
{ ACMOVLHI, yml_rl, Pm, {0x47} },
{ ACMOVLLE, yml_rl, Pm, {0x4e} },
{ ACMOVLLS, yml_rl, Pm, {0x46} },
{ ACMOVLLT, yml_rl, Pm, {0x4c} },
{ ACMOVLMI, yml_rl, Pm, {0x48} },
{ ACMOVLNE, yml_rl, Pm, {0x45} },
{ ACMOVLOC, yml_rl, Pm, {0x41} },
{ ACMOVLOS, yml_rl, Pm, {0x40} },
{ ACMOVLPC, yml_rl, Pm, {0x4b} },
{ ACMOVLPL, yml_rl, Pm, {0x49} },
{ ACMOVLPS, yml_rl, Pm, {0x4a} },
{ ACMOVWCC, yml_rl, Pq, {0x43} },
{ ACMOVWCS, yml_rl, Pq, {0x42} },
{ ACMOVWEQ, yml_rl, Pq, {0x44} },
{ ACMOVWGE, yml_rl, Pq, {0x4d} },
{ ACMOVWGT, yml_rl, Pq, {0x4f} },
{ ACMOVWHI, yml_rl, Pq, {0x47} },
{ ACMOVWLE, yml_rl, Pq, {0x4e} },
{ ACMOVWLS, yml_rl, Pq, {0x46} },
{ ACMOVWLT, yml_rl, Pq, {0x4c} },
{ ACMOVWMI, yml_rl, Pq, {0x48} },
{ ACMOVWNE, yml_rl, Pq, {0x45} },
{ ACMOVWOC, yml_rl, Pq, {0x41} },
{ ACMOVWOS, yml_rl, Pq, {0x40} },
{ ACMOVWPC, yml_rl, Pq, {0x4b} },
{ ACMOVWPL, yml_rl, Pq, {0x49} },
{ ACMOVWPS, yml_rl, Pq, {0x4a} },
{ AFCMOVCC, yfcmv, Px, {0xdb,(00)} },
{ AFCMOVCS, yfcmv, Px, {0xda,(00)} },
{ AFCMOVEQ, yfcmv, Px, {0xda,(01)} },
{ AFCMOVHI, yfcmv, Px, {0xdb,(02)} },
{ AFCMOVLS, yfcmv, Px, {0xda,(02)} },
{ AFCMOVNE, yfcmv, Px, {0xdb,(01)} },
{ AFCMOVNU, yfcmv, Px, {0xdb,(03)} },
{ AFCMOVUN, yfcmv, Px, {0xda,(03)} },
{ ALFENCE, ynone, Pm, {0xae,0xe8} },
{ AMFENCE, ynone, Pm, {0xae,0xf0} },
{ ASFENCE, ynone, Pm, {0xae,0xf8} },
{ AEMMS, ynone, Pm, {0x77} },
{ APREFETCHT0, yprefetch, Pm, {0x18,(01)} },
{ APREFETCHT1, yprefetch, Pm, {0x18,(02)} },
{ APREFETCHT2, yprefetch, Pm, {0x18,(03)} },
{ APREFETCHNTA, yprefetch, Pm, {0x18,(00)} },
{ ABSWAPL, ybswap, Pm, {0xc8} },
{ AUNDEF, ynone, Px, {0x0f, 0x0b} },
{ AADDPD, yxm, Pq, {0x58} },
{ AADDPS, yxm, Pm, {0x58} },
{ AADDSD, yxm, Pf2, {0x58} },
{ AADDSS, yxm, Pf3, {0x58} },
{ AANDNPD, yxm, Pq, {0x55} },
{ AANDNPS, yxm, Pm, {0x55} },
{ AANDPD, yxm, Pq, {0x54} },
{ AANDPS, yxm, Pq, {0x54} },
{ ACMPPD, yxcmpi, Px, {Pe,0xc2} },
{ ACMPPS, yxcmpi, Pm, {0xc2,0} },
{ ACMPSD, yxcmpi, Px, {Pf2,0xc2} },
{ ACMPSS, yxcmpi, Px, {Pf3,0xc2} },
{ ACOMISD, yxcmp, Pe, {0x2f} },
{ ACOMISS, yxcmp, Pm, {0x2f} },
{ ACVTPL2PD, yxcvm2, Px, {Pf3,0xe6,Pe,0x2a} },
{ ACVTPL2PS, yxcvm2, Pm, {0x5b,0,0x2a,0,} },
{ ACVTPD2PL, yxcvm1, Px, {Pf2,0xe6,Pe,0x2d} },
{ ACVTPD2PS, yxm, Pe, {0x5a} },
{ ACVTPS2PL, yxcvm1, Px, {Pe,0x5b,Pm,0x2d} },
{ ACVTPS2PD, yxm, Pm, {0x5a} },
{ ACVTSD2SL, yxcvfl, Pf2, {0x2d} },
{ ACVTSD2SS, yxm, Pf2, {0x5a} },
{ ACVTSL2SD, yxcvlf, Pf2, {0x2a} },
{ ACVTSL2SS, yxcvlf, Pf3, {0x2a} },
{ ACVTSS2SD, yxm, Pf3, {0x5a} },
{ ACVTSS2SL, yxcvfl, Pf3, {0x2d} },
{ ACVTTPD2PL, yxcvm1, Px, {Pe,0xe6,Pe,0x2c} },
{ ACVTTPS2PL, yxcvm1, Px, {Pf3,0x5b,Pm,0x2c} },
{ ACVTTSD2SL, yxcvfl, Pf2, {0x2c} },
{ ACVTTSS2SL, yxcvfl, Pf3, {0x2c} },
{ ADIVPD, yxm, Pe, {0x5e} },
{ ADIVPS, yxm, Pm, {0x5e} },
{ ADIVSD, yxm, Pf2, {0x5e} },
{ ADIVSS, yxm, Pf3, {0x5e} },
{ AMASKMOVOU, yxr, Pe, {0xf7} },
{ AMAXPD, yxm, Pe, {0x5f} },
{ AMAXPS, yxm, Pm, {0x5f} },
{ AMAXSD, yxm, Pf2, {0x5f} },
{ AMAXSS, yxm, Pf3, {0x5f} },
{ AMINPD, yxm, Pe, {0x5d} },
{ AMINPS, yxm, Pm, {0x5d} },
{ AMINSD, yxm, Pf2, {0x5d} },
{ AMINSS, yxm, Pf3, {0x5d} },
{ AMOVAPD, yxmov, Pe, {0x28,0x29} },
{ AMOVAPS, yxmov, Pm, {0x28,0x29} },
{ AMOVO, yxmov, Pe, {0x6f,0x7f} },
{ AMOVOU, yxmov, Pf3, {0x6f,0x7f} },
{ AMOVHLPS, yxr, Pm, {0x12} },
{ AMOVHPD, yxmov, Pe, {0x16,0x17} },
{ AMOVHPS, yxmov, Pm, {0x16,0x17} },
{ AMOVLHPS, yxr, Pm, {0x16} },
{ AMOVLPD, yxmov, Pe, {0x12,0x13} },
{ AMOVLPS, yxmov, Pm, {0x12,0x13} },
{ AMOVMSKPD, yxrrl, Pq, {0x50} },
{ AMOVMSKPS, yxrrl, Pm, {0x50} },
{ AMOVNTO, yxr_ml, Pe, {0xe7} },
{ AMOVNTPD, yxr_ml, Pe, {0x2b} },
{ AMOVNTPS, yxr_ml, Pm, {0x2b} },
{ AMOVSD, yxmov, Pf2, {0x10,0x11} },
{ AMOVSS, yxmov, Pf3, {0x10,0x11} },
{ AMOVUPD, yxmov, Pe, {0x10,0x11} },
{ AMOVUPS, yxmov, Pm, {0x10,0x11} },
{ AMULPD, yxm, Pe, {0x59} },
{ AMULPS, yxm, Ym, {0x59} },
{ AMULSD, yxm, Pf2, {0x59} },
{ AMULSS, yxm, Pf3, {0x59} },
{ AORPD, yxm, Pq, {0x56} },
{ AORPS, yxm, Pm, {0x56} },
{ APADDQ, yxm, Pe, {0xd4} },
{ APAND, yxm, Pe, {0xdb} },
{ APCMPEQB, yxmq, Pe, {0x74} },
{ APMAXSW, yxm, Pe, {0xee} },
{ APMAXUB, yxm, Pe, {0xde} },
{ APMINSW, yxm, Pe, {0xea} },
{ APMINUB, yxm, Pe, {0xda} },
{ APMOVMSKB, ymskb, Px, {Pe,0xd7,0xd7} },
{ APSADBW, yxm, Pq, {0xf6} },
{ APSUBB, yxm, Pe, {0xf8} },
{ APSUBL, yxm, Pe, {0xfa} },
{ APSUBQ, yxm, Pe, {0xfb} },
{ APSUBSB, yxm, Pe, {0xe8} },
{ APSUBSW, yxm, Pe, {0xe9} },
{ APSUBUSB, yxm, Pe, {0xd8} },
{ APSUBUSW, yxm, Pe, {0xd9} },
{ APSUBW, yxm, Pe, {0xf9} },
{ APUNPCKHQDQ, yxm, Pe, {0x6d} },
{ APUNPCKLQDQ, yxm, Pe, {0x6c} },
{ APXOR, yxm, Pe, {0xef} },
{ ARCPPS, yxm, Pm, {0x53} },
{ ARCPSS, yxm, Pf3, {0x53} },
{ ARSQRTPS, yxm, Pm, {0x52} },
{ ARSQRTSS, yxm, Pf3, {0x52} },
{ ASQRTPD, yxm, Pe, {0x51} },
{ ASQRTPS, yxm, Pm, {0x51} },
{ ASQRTSD, yxm, Pf2, {0x51} },
{ ASQRTSS, yxm, Pf3, {0x51} },
{ ASUBPD, yxm, Pe, {0x5c} },
{ ASUBPS, yxm, Pm, {0x5c} },
{ ASUBSD, yxm, Pf2, {0x5c} },
{ ASUBSS, yxm, Pf3, {0x5c} },
{ AUCOMISD, yxcmp, Pe, {0x2e} },
{ AUCOMISS, yxcmp, Pm, {0x2e} },
{ AUNPCKHPD, yxm, Pe, {0x15} },
{ AUNPCKHPS, yxm, Pm, {0x15} },
{ AUNPCKLPD, yxm, Pe, {0x14} },
{ AUNPCKLPS, yxm, Pm, {0x14} },
{ AXORPD, yxm, Pe, {0x57} },
{ AXORPS, yxm, Pm, {0x57} },
{ AAESENC, yaes, Pq, {0x38,0xdc,(0)} },
{ APINSRD, yinsrd, Pq, {0x3a, 0x22, (00)} },
{ APSHUFB, ymshufb,Pq, {0x38, 0x00} },
{ AUSEFIELD, ynop, Px, {0,0} },
{ ATYPE },
{ AFUNCDATA, yfuncdata, Px, {0,0} },
{ APCDATA, ypcdata, Px, {0,0} },
{ ACHECKNIL },
{ AVARDEF },
{ AVARKILL },
{ ADUFFCOPY, yduff, Px, {0xe8} },
{ ADUFFZERO, yduff, Px, {0xe8} },
{0}
};
static int32 vaddr(Link*, Addr*, Reloc*);
// single-instruction no-ops of various lengths.
// constructed by hand and disassembled with gdb to verify.
// see http://www.agner.org/optimize/optimizing_assembly.pdf for discussion.
static uchar nop[][16] = {
{0x90},
{0x66, 0x90},
{0x0F, 0x1F, 0x00},
{0x0F, 0x1F, 0x40, 0x00},
{0x0F, 0x1F, 0x44, 0x00, 0x00},
{0x66, 0x0F, 0x1F, 0x44, 0x00, 0x00},
{0x0F, 0x1F, 0x80, 0x00, 0x00, 0x00, 0x00},
{0x0F, 0x1F, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x66, 0x0F, 0x1F, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00},
// Native Client rejects the repeated 0x66 prefix.
// {0x66, 0x66, 0x0F, 0x1F, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00},
};
static void
fillnop(uchar *p, int n)
{
int m;
while(n > 0) {
m = n;
if(m > nelem(nop))
m = nelem(nop);
memmove(p, nop[m-1], m);
p += m;
n -= m;
}
}
static int32
naclpad(Link *ctxt, LSym *s, int32 c, int32 pad)
{
symgrow(ctxt, s, c+pad);
fillnop(s->p+c, pad);
return c+pad;
}
static void instinit(void);
void
span8(Link *ctxt, LSym *s)
{
Prog *p, *q;
int32 c, v, loop;
uchar *bp;
int n, m, i;
ctxt->cursym = s;
if(s->text == nil || s->text->link == nil)
return;
if(ycover[0] == 0)
instinit();
for(p = s->text; p != nil; p = p->link) {
n = 0;
if(p->to.type == D_BRANCH)
if(p->pcond == nil)
p->pcond = p;
if((q = p->pcond) != nil)
if(q->back != 2)
n = 1;
p->back = n;
if(p->as == AADJSP) {
p->to.type = D_SP;
v = -p->from.offset;
p->from.offset = v;
p->as = AADDL;
if(v < 0) {
p->as = ASUBL;
v = -v;
p->from.offset = v;
}
if(v == 0)
p->as = ANOP;
}
}
for(p = s->text; p != nil; p = p->link) {
p->back = 2; // use short branches first time through
if((q = p->pcond) != nil && (q->back & 2))
p->back |= 1; // backward jump
if(p->as == AADJSP) {
p->to.type = D_SP;
v = -p->from.offset;
p->from.offset = v;
p->as = AADDL;
if(v < 0) {
p->as = ASUBL;
v = -v;
p->from.offset = v;
}
if(v == 0)
p->as = ANOP;
}
}
n = 0;
do {
loop = 0;
memset(s->r, 0, s->nr*sizeof s->r[0]);
s->nr = 0;
s->np = 0;
c = 0;
for(p = s->text; p != nil; p = p->link) {
if(ctxt->headtype == Hnacl && p->isize > 0) {
static LSym *deferreturn;
if(deferreturn == nil)
deferreturn = linklookup(ctxt, "runtime.deferreturn", 0);
// pad everything to avoid crossing 32-byte boundary
if((c>>5) != ((c+p->isize-1)>>5))
c = naclpad(ctxt, s, c, -c&31);
// pad call deferreturn to start at 32-byte boundary
// so that subtracting 5 in jmpdefer will jump back
// to that boundary and rerun the call.
if(p->as == ACALL && p->to.sym == deferreturn)
c = naclpad(ctxt, s, c, -c&31);
// pad call to end at 32-byte boundary
if(p->as == ACALL)
c = naclpad(ctxt, s, c, -(c+p->isize)&31);
// the linker treats REP and STOSQ as different instructions
// but in fact the REP is a prefix on the STOSQ.
// make sure REP has room for 2 more bytes, so that
// padding will not be inserted before the next instruction.
if(p->as == AREP && (c>>5) != ((c+3-1)>>5))
c = naclpad(ctxt, s, c, -c&31);
// same for LOCK.
// various instructions follow; the longest is 4 bytes.
// give ourselves 8 bytes so as to avoid surprises.
if(p->as == ALOCK && (c>>5) != ((c+8-1)>>5))
c = naclpad(ctxt, s, c, -c&31);
}
p->pc = c;
// process forward jumps to p
for(q = p->comefrom; q != nil; q = q->forwd) {
v = p->pc - (q->pc + q->mark);
if(q->back & 2) { // short
if(v > 127) {
loop++;
q->back ^= 2;
}
if(q->as == AJCXZW)
s->p[q->pc+2] = v;
else
s->p[q->pc+1] = v;
} else {
bp = s->p + q->pc + q->mark - 4;
*bp++ = v;
*bp++ = v>>8;
*bp++ = v>>16;
*bp = v>>24;
}
}
p->comefrom = nil;
p->pc = c;
asmins(ctxt, p);
m = ctxt->andptr-ctxt->and;
if(p->isize != m) {
p->isize = m;
loop++;
}
symgrow(ctxt, s, p->pc+m);
memmove(s->p+p->pc, ctxt->and, m);
p->mark = m;
c += m;
}
if(++n > 20) {
ctxt->diag("span must be looping");
sysfatal("bad code");
}
} while(loop);
if(ctxt->headtype == Hnacl)
c = naclpad(ctxt, s, c, -c&31);
c += -c&(FuncAlign-1);
s->size = c;
if(0 /* debug['a'] > 1 */) {
print("span1 %s %lld (%d tries)\n %.6ux", s->name, s->size, n, 0);
for(i=0; i<s->np; i++) {
print(" %.2ux", s->p[i]);
if(i%16 == 15)
print("\n %.6ux", i+1);
}
if(i%16)
print("\n");
for(i=0; i<s->nr; i++) {
Reloc *r;
r = &s->r[i];
print(" rel %#.4ux/%d %s%+lld\n", r->off, r->siz, r->sym->name, r->add);
}
}
}
static void
instinit(void)
{
int i;
for(i=1; optab[i].as; i++)
if(i != optab[i].as)
sysfatal("phase error in optab: at %A found %A", i, optab[i].as);
for(i=0; i<Ymax; i++)
ycover[i*Ymax + i] = 1;
ycover[Yi0*Ymax + Yi8] = 1;
ycover[Yi1*Ymax + Yi8] = 1;
ycover[Yi0*Ymax + Yi32] = 1;
ycover[Yi1*Ymax + Yi32] = 1;
ycover[Yi8*Ymax + Yi32] = 1;
ycover[Yal*Ymax + Yrb] = 1;
ycover[Ycl*Ymax + Yrb] = 1;
ycover[Yax*Ymax + Yrb] = 1;
ycover[Ycx*Ymax + Yrb] = 1;
ycover[Yrx*Ymax + Yrb] = 1;
ycover[Yax*Ymax + Yrx] = 1;
ycover[Ycx*Ymax + Yrx] = 1;
ycover[Yax*Ymax + Yrl] = 1;
ycover[Ycx*Ymax + Yrl] = 1;
ycover[Yrx*Ymax + Yrl] = 1;
ycover[Yf0*Ymax + Yrf] = 1;
ycover[Yal*Ymax + Ymb] = 1;
ycover[Ycl*Ymax + Ymb] = 1;
ycover[Yax*Ymax + Ymb] = 1;
ycover[Ycx*Ymax + Ymb] = 1;
ycover[Yrx*Ymax + Ymb] = 1;
ycover[Yrb*Ymax + Ymb] = 1;
ycover[Ym*Ymax + Ymb] = 1;
ycover[Yax*Ymax + Yml] = 1;
ycover[Ycx*Ymax + Yml] = 1;
ycover[Yrx*Ymax + Yml] = 1;
ycover[Yrl*Ymax + Yml] = 1;
ycover[Ym*Ymax + Yml] = 1;
ycover[Yax*Ymax + Ymm] = 1;
ycover[Ycx*Ymax + Ymm] = 1;
ycover[Yrx*Ymax + Ymm] = 1;
ycover[Yrl*Ymax + Ymm] = 1;
ycover[Ym*Ymax + Ymm] = 1;
ycover[Ymr*Ymax + Ymm] = 1;
ycover[Ym*Ymax + Yxm] = 1;
ycover[Yxr*Ymax + Yxm] = 1;
for(i=0; i<D_NONE; i++) {
reg[i] = -1;
if(i >= D_AL && i <= D_BH)
reg[i] = (i-D_AL) & 7;
if(i >= D_AX && i <= D_DI)
reg[i] = (i-D_AX) & 7;
if(i >= D_F0 && i <= D_F0+7)
reg[i] = (i-D_F0) & 7;
if(i >= D_X0 && i <= D_X0+7)
reg[i] = (i-D_X0) & 7;
}
}
static int
prefixof(Link *ctxt, Addr *a)
{
switch(a->type) {
case D_INDIR+D_CS:
return 0x2e;
case D_INDIR+D_DS:
return 0x3e;
case D_INDIR+D_ES:
return 0x26;
case D_INDIR+D_FS:
return 0x64;
case D_INDIR+D_GS:
return 0x65;
case D_INDIR+D_TLS:
// NOTE: Systems listed here should be only systems that
// support direct TLS references like 8(TLS) implemented as
// direct references from FS or GS. Systems that require
// the initial-exec model, where you load the TLS base into
// a register and then index from that register, do not reach
// this code and should not be listed.
switch(ctxt->headtype) {
default:
sysfatal("unknown TLS base register for %s", headstr(ctxt->headtype));
case Hdarwin:
case Hdragonfly:
case Hfreebsd:
case Hnetbsd:
case Hopenbsd:
return 0x65; // GS
}
}
return 0;
}
static int
oclass(Addr *a)
{
int32 v;
if((a->type >= D_INDIR && a->type < 2*D_INDIR) || a->index != D_NONE) {
if(a->index != D_NONE && a->scale == 0) {
if(a->type == D_ADDR) {
switch(a->index) {
case D_EXTERN:
case D_STATIC:
return Yi32;
case D_AUTO:
case D_PARAM:
return Yiauto;
}
return Yxxx;
}
//if(a->type == D_INDIR+D_ADDR)
// print("*Ycol\n");
return Ycol;
}
return Ym;
}
switch(a->type)
{
case D_AL:
return Yal;
case D_AX:
return Yax;
case D_CL:
case D_DL:
case D_BL:
case D_AH:
case D_CH:
case D_DH:
case D_BH:
return Yrb;
case D_CX:
return Ycx;
case D_DX:
case D_BX:
return Yrx;
case D_SP:
case D_BP:
case D_SI:
case D_DI:
return Yrl;
case D_F0+0:
return Yf0;
case D_F0+1:
case D_F0+2:
case D_F0+3:
case D_F0+4:
case D_F0+5:
case D_F0+6:
case D_F0+7:
return Yrf;
case D_X0+0:
case D_X0+1:
case D_X0+2:
case D_X0+3:
case D_X0+4:
case D_X0+5:
case D_X0+6:
case D_X0+7:
return Yxr;
case D_NONE:
return Ynone;
case D_CS: return Ycs;
case D_SS: return Yss;
case D_DS: return Yds;
case D_ES: return Yes;
case D_FS: return Yfs;
case D_GS: return Ygs;
case D_TLS: return Ytls;
case D_GDTR: return Ygdtr;
case D_IDTR: return Yidtr;
case D_LDTR: return Yldtr;
case D_MSW: return Ymsw;
case D_TASK: return Ytask;
case D_CR+0: return Ycr0;
case D_CR+1: return Ycr1;
case D_CR+2: return Ycr2;
case D_CR+3: return Ycr3;
case D_CR+4: return Ycr4;
case D_CR+5: return Ycr5;
case D_CR+6: return Ycr6;
case D_CR+7: return Ycr7;
case D_DR+0: return Ydr0;
case D_DR+1: return Ydr1;
case D_DR+2: return Ydr2;
case D_DR+3: return Ydr3;
case D_DR+4: return Ydr4;
case D_DR+5: return Ydr5;
case D_DR+6: return Ydr6;
case D_DR+7: return Ydr7;
case D_TR+0: return Ytr0;
case D_TR+1: return Ytr1;
case D_TR+2: return Ytr2;
case D_TR+3: return Ytr3;
case D_TR+4: return Ytr4;
case D_TR+5: return Ytr5;
case D_TR+6: return Ytr6;
case D_TR+7: return Ytr7;
case D_EXTERN:
case D_STATIC:
case D_AUTO:
case D_PARAM:
return Ym;
case D_CONST:
case D_CONST2:
case D_ADDR:
if(a->sym == nil) {
v = a->offset;
if(v == 0)
return Yi0;
if(v == 1)
return Yi1;
if(v >= -128 && v <= 127)
return Yi8;
}
return Yi32;
case D_BRANCH:
return Ybr;
}
return Yxxx;
}
static void
asmidx(Link *ctxt, int scale, int index, int base)
{
int i;
switch(index) {
default:
goto bad;
case D_NONE:
i = 4 << 3;
goto bas;
case D_AX:
case D_CX:
case D_DX:
case D_BX:
case D_BP:
case D_SI:
case D_DI:
i = reg[index] << 3;
break;
}
switch(scale) {
default:
goto bad;
case 1:
break;
case 2:
i |= (1<<6);
break;
case 4:
i |= (2<<6);
break;
case 8:
i |= (3<<6);
break;
}
bas:
switch(base) {
default:
goto bad;
case D_NONE: /* must be mod=00 */
i |= 5;
break;
case D_AX:
case D_CX:
case D_DX:
case D_BX:
case D_SP:
case D_BP:
case D_SI:
case D_DI:
i |= reg[base];
break;
}
*ctxt->andptr++ = i;
return;
bad:
ctxt->diag("asmidx: bad address %d,%d,%d", scale, index, base);
*ctxt->andptr++ = 0;
return;
}
static void
put4(Link *ctxt, int32 v)
{
ctxt->andptr[0] = v;
ctxt->andptr[1] = v>>8;
ctxt->andptr[2] = v>>16;
ctxt->andptr[3] = v>>24;
ctxt->andptr += 4;
}
static void
relput4(Link *ctxt, Prog *p, Addr *a)
{
vlong v;
Reloc rel, *r;
v = vaddr(ctxt, a, &rel);
if(rel.siz != 0) {
if(rel.siz != 4)
ctxt->diag("bad reloc");
r = addrel(ctxt->cursym);
*r = rel;
r->off = p->pc + ctxt->andptr - ctxt->and;
}
put4(ctxt, v);
}
static int32
vaddr(Link *ctxt, Addr *a, Reloc *r)
{
int t;
int32 v;
LSym *s;
if(r != nil)
memset(r, 0, sizeof *r);
t = a->type;
v = a->offset;
if(t == D_ADDR)
t = a->index;
switch(t) {
case D_STATIC:
case D_EXTERN:
s = a->sym;
if(s != nil) {
if(r == nil) {
ctxt->diag("need reloc for %D", a);
sysfatal("bad code");
}
r->type = R_ADDR;
r->siz = 4;
r->off = -1;
r->sym = s;
r->add = v;
v = 0;
}
break;
case D_INDIR+D_TLS:
if(r == nil) {
ctxt->diag("need reloc for %D", a);
sysfatal("bad code");
}
r->type = R_TLS_LE;
r->siz = 4;
r->off = -1; // caller must fill in
r->add = v;
v = 0;
break;
}
return v;
}
static void
asmand(Link *ctxt, Addr *a, int r)
{
int32 v;
int t, scale;
Reloc rel;
v = a->offset;
t = a->type;
rel.siz = 0;
if(a->index != D_NONE && a->index != D_TLS) {
if(t < D_INDIR || t >= 2*D_INDIR) {
switch(t) {
default:
goto bad;
case D_STATIC:
case D_EXTERN:
t = D_NONE;
v = vaddr(ctxt, a, &rel);
break;
case D_AUTO:
case D_PARAM:
t = D_SP;
break;
}
} else
t -= D_INDIR;
if(t == D_NONE) {
*ctxt->andptr++ = (0 << 6) | (4 << 0) | (r << 3);
asmidx(ctxt, a->scale, a->index, t);
goto putrelv;
}
if(v == 0 && rel.siz == 0 && t != D_BP) {
*ctxt->andptr++ = (0 << 6) | (4 << 0) | (r << 3);
asmidx(ctxt, a->scale, a->index, t);
return;
}
if(v >= -128 && v < 128 && rel.siz == 0) {
*ctxt->andptr++ = (1 << 6) | (4 << 0) | (r << 3);
asmidx(ctxt, a->scale, a->index, t);
*ctxt->andptr++ = v;
return;
}
*ctxt->andptr++ = (2 << 6) | (4 << 0) | (r << 3);
asmidx(ctxt, a->scale, a->index, t);
goto putrelv;
}
if(t >= D_AL && t <= D_F7 || t >= D_X0 && t <= D_X7) {
if(v)
goto bad;
*ctxt->andptr++ = (3 << 6) | (reg[t] << 0) | (r << 3);
return;
}
scale = a->scale;
if(t < D_INDIR || t >= 2*D_INDIR) {
switch(a->type) {
default:
goto bad;
case D_STATIC:
case D_EXTERN:
t = D_NONE;
v = vaddr(ctxt, a, &rel);
break;
case D_AUTO:
case D_PARAM:
t = D_SP;
break;
}
scale = 1;
} else
t -= D_INDIR;
if(t == D_TLS)
v = vaddr(ctxt, a, &rel);
if(t == D_NONE || (D_CS <= t && t <= D_GS) || t == D_TLS) {
*ctxt->andptr++ = (0 << 6) | (5 << 0) | (r << 3);
goto putrelv;
}
if(t == D_SP) {
if(v == 0 && rel.siz == 0) {
*ctxt->andptr++ = (0 << 6) | (4 << 0) | (r << 3);
asmidx(ctxt, scale, D_NONE, t);
return;
}
if(v >= -128 && v < 128 && rel.siz == 0) {
*ctxt->andptr++ = (1 << 6) | (4 << 0) | (r << 3);
asmidx(ctxt, scale, D_NONE, t);
*ctxt->andptr++ = v;
return;
}
*ctxt->andptr++ = (2 << 6) | (4 << 0) | (r << 3);
asmidx(ctxt, scale, D_NONE, t);
goto putrelv;
}
if(t >= D_AX && t <= D_DI) {
if(a->index == D_TLS) {
memset(&rel, 0, sizeof rel);
rel.type = R_TLS_IE;
rel.siz = 4;
rel.sym = nil;
rel.add = v;
v = 0;
}
if(v == 0 && rel.siz == 0 && t != D_BP) {
*ctxt->andptr++ = (0 << 6) | (reg[t] << 0) | (r << 3);
return;
}
if(v >= -128 && v < 128 && rel.siz == 0) {
ctxt->andptr[0] = (1 << 6) | (reg[t] << 0) | (r << 3);
ctxt->andptr[1] = v;
ctxt->andptr += 2;
return;
}
*ctxt->andptr++ = (2 << 6) | (reg[t] << 0) | (r << 3);
goto putrelv;
}
goto bad;
putrelv:
if(rel.siz != 0) {
Reloc *r;
if(rel.siz != 4) {
ctxt->diag("bad rel");
goto bad;
}
r = addrel(ctxt->cursym);
*r = rel;
r->off = ctxt->curp->pc + ctxt->andptr - ctxt->and;
}
put4(ctxt, v);
return;
bad:
ctxt->diag("asmand: bad address %D", a);
return;
}
enum
{
E = 0xff,
};
static uchar ymovtab[] =
{
/* push */
APUSHL, Ycs, Ynone, 0, 0x0e,E,0,0,
APUSHL, Yss, Ynone, 0, 0x16,E,0,0,
APUSHL, Yds, Ynone, 0, 0x1e,E,0,0,
APUSHL, Yes, Ynone, 0, 0x06,E,0,0,
APUSHL, Yfs, Ynone, 0, 0x0f,0xa0,E,0,
APUSHL, Ygs, Ynone, 0, 0x0f,0xa8,E,0,
APUSHW, Ycs, Ynone, 0, Pe,0x0e,E,0,
APUSHW, Yss, Ynone, 0, Pe,0x16,E,0,
APUSHW, Yds, Ynone, 0, Pe,0x1e,E,0,
APUSHW, Yes, Ynone, 0, Pe,0x06,E,0,
APUSHW, Yfs, Ynone, 0, Pe,0x0f,0xa0,E,
APUSHW, Ygs, Ynone, 0, Pe,0x0f,0xa8,E,
/* pop */
APOPL, Ynone, Yds, 0, 0x1f,E,0,0,
APOPL, Ynone, Yes, 0, 0x07,E,0,0,
APOPL, Ynone, Yss, 0, 0x17,E,0,0,
APOPL, Ynone, Yfs, 0, 0x0f,0xa1,E,0,
APOPL, Ynone, Ygs, 0, 0x0f,0xa9,E,0,
APOPW, Ynone, Yds, 0, Pe,0x1f,E,0,
APOPW, Ynone, Yes, 0, Pe,0x07,E,0,
APOPW, Ynone, Yss, 0, Pe,0x17,E,0,
APOPW, Ynone, Yfs, 0, Pe,0x0f,0xa1,E,
APOPW, Ynone, Ygs, 0, Pe,0x0f,0xa9,E,
/* mov seg */
AMOVW, Yes, Yml, 1, 0x8c,0,0,0,
AMOVW, Ycs, Yml, 1, 0x8c,1,0,0,
AMOVW, Yss, Yml, 1, 0x8c,2,0,0,
AMOVW, Yds, Yml, 1, 0x8c,3,0,0,
AMOVW, Yfs, Yml, 1, 0x8c,4,0,0,
AMOVW, Ygs, Yml, 1, 0x8c,5,0,0,
AMOVW, Yml, Yes, 2, 0x8e,0,0,0,
AMOVW, Yml, Ycs, 2, 0x8e,1,0,0,
AMOVW, Yml, Yss, 2, 0x8e,2,0,0,
AMOVW, Yml, Yds, 2, 0x8e,3,0,0,
AMOVW, Yml, Yfs, 2, 0x8e,4,0,0,
AMOVW, Yml, Ygs, 2, 0x8e,5,0,0,
/* mov cr */
AMOVL, Ycr0, Yml, 3, 0x0f,0x20,0,0,
AMOVL, Ycr2, Yml, 3, 0x0f,0x20,2,0,
AMOVL, Ycr3, Yml, 3, 0x0f,0x20,3,0,
AMOVL, Ycr4, Yml, 3, 0x0f,0x20,4,0,
AMOVL, Yml, Ycr0, 4, 0x0f,0x22,0,0,
AMOVL, Yml, Ycr2, 4, 0x0f,0x22,2,0,
AMOVL, Yml, Ycr3, 4, 0x0f,0x22,3,0,
AMOVL, Yml, Ycr4, 4, 0x0f,0x22,4,0,
/* mov dr */
AMOVL, Ydr0, Yml, 3, 0x0f,0x21,0,0,
AMOVL, Ydr6, Yml, 3, 0x0f,0x21,6,0,
AMOVL, Ydr7, Yml, 3, 0x0f,0x21,7,0,
AMOVL, Yml, Ydr0, 4, 0x0f,0x23,0,0,
AMOVL, Yml, Ydr6, 4, 0x0f,0x23,6,0,
AMOVL, Yml, Ydr7, 4, 0x0f,0x23,7,0,
/* mov tr */
AMOVL, Ytr6, Yml, 3, 0x0f,0x24,6,0,
AMOVL, Ytr7, Yml, 3, 0x0f,0x24,7,0,
AMOVL, Yml, Ytr6, 4, 0x0f,0x26,6,E,
AMOVL, Yml, Ytr7, 4, 0x0f,0x26,7,E,
/* lgdt, sgdt, lidt, sidt */
AMOVL, Ym, Ygdtr, 4, 0x0f,0x01,2,0,
AMOVL, Ygdtr, Ym, 3, 0x0f,0x01,0,0,
AMOVL, Ym, Yidtr, 4, 0x0f,0x01,3,0,
AMOVL, Yidtr, Ym, 3, 0x0f,0x01,1,0,
/* lldt, sldt */
AMOVW, Yml, Yldtr, 4, 0x0f,0x00,2,0,
AMOVW, Yldtr, Yml, 3, 0x0f,0x00,0,0,
/* lmsw, smsw */
AMOVW, Yml, Ymsw, 4, 0x0f,0x01,6,0,
AMOVW, Ymsw, Yml, 3, 0x0f,0x01,4,0,
/* ltr, str */
AMOVW, Yml, Ytask, 4, 0x0f,0x00,3,0,
AMOVW, Ytask, Yml, 3, 0x0f,0x00,1,0,
/* load full pointer */
AMOVL, Yml, Ycol, 5, 0,0,0,0,
AMOVW, Yml, Ycol, 5, Pe,0,0,0,
/* double shift */
ASHLL, Ycol, Yml, 6, 0xa4,0xa5,0,0,
ASHRL, Ycol, Yml, 6, 0xac,0xad,0,0,
/* extra imul */
AIMULW, Yml, Yrl, 7, Pq,0xaf,0,0,
AIMULL, Yml, Yrl, 7, Pm,0xaf,0,0,
/* load TLS base pointer */
AMOVL, Ytls, Yrl, 8, 0,0,0,0,
0
};
// byteswapreg returns a byte-addressable register (AX, BX, CX, DX)
// which is not referenced in a->type.
// If a is empty, it returns BX to account for MULB-like instructions
// that might use DX and AX.
static int
byteswapreg(Link *ctxt, Addr *a)
{
int cana, canb, canc, cand;
cana = canb = canc = cand = 1;
switch(a->type) {
case D_NONE:
cana = cand = 0;
break;
case D_AX:
case D_AL:
case D_AH:
case D_INDIR+D_AX:
cana = 0;
break;
case D_BX:
case D_BL:
case D_BH:
case D_INDIR+D_BX:
canb = 0;
break;
case D_CX:
case D_CL:
case D_CH:
case D_INDIR+D_CX:
canc = 0;
break;
case D_DX:
case D_DL:
case D_DH:
case D_INDIR+D_DX:
cand = 0;
break;
}
switch(a->index) {
case D_AX:
cana = 0;
break;
case D_BX:
canb = 0;
break;
case D_CX:
canc = 0;
break;
case D_DX:
cand = 0;
break;
}
if(cana)
return D_AX;
if(canb)
return D_BX;
if(canc)
return D_CX;
if(cand)
return D_DX;
ctxt->diag("impossible byte register");
sysfatal("bad code");
return 0;
}
static void
subreg(Prog *p, int from, int to)
{
if(0 /* debug['Q'] */)
print("\n%P s/%R/%R/\n", p, from, to);
if(p->from.type == from) {
p->from.type = to;
p->ft = 0;
}
if(p->to.type == from) {
p->to.type = to;
p->tt = 0;
}
if(p->from.index == from) {
p->from.index = to;
p->ft = 0;
}
if(p->to.index == from) {
p->to.index = to;
p->tt = 0;
}
from += D_INDIR;
if(p->from.type == from) {
p->from.type = to+D_INDIR;
p->ft = 0;
}
if(p->to.type == from) {
p->to.type = to+D_INDIR;
p->tt = 0;
}
if(0 /* debug['Q'] */)
print("%P\n", p);
}
static int
mediaop(Link *ctxt, Optab *o, int op, int osize, int z)
{
switch(op){
case Pm:
case Pe:
case Pf2:
case Pf3:
if(osize != 1){
if(op != Pm)
*ctxt->andptr++ = op;
*ctxt->andptr++ = Pm;
op = o->op[++z];
break;
}
default:
if(ctxt->andptr == ctxt->and || ctxt->and[ctxt->andptr - ctxt->and - 1] != Pm)
*ctxt->andptr++ = Pm;
break;
}
*ctxt->andptr++ = op;
return z;
}
static void
doasm(Link *ctxt, Prog *p)
{
Optab *o;
Prog *q, pp;
uchar *t;
int z, op, ft, tt, breg;
int32 v, pre;
Reloc rel, *r;
Addr *a;
ctxt->curp = p; // TODO
pre = prefixof(ctxt, &p->from);
if(pre)
*ctxt->andptr++ = pre;
pre = prefixof(ctxt, &p->to);
if(pre)
*ctxt->andptr++ = pre;
if(p->ft == 0)
p->ft = oclass(&p->from);
if(p->tt == 0)
p->tt = oclass(&p->to);
ft = p->ft * Ymax;
tt = p->tt * Ymax;
o = &optab[p->as];
t = o->ytab;
if(t == 0) {
ctxt->diag("asmins: noproto %P", p);
return;
}
for(z=0; *t; z+=t[3],t+=4)
if(ycover[ft+t[0]])
if(ycover[tt+t[1]])
goto found;
goto domov;
found:
switch(o->prefix) {
case Pq: /* 16 bit escape and opcode escape */
*ctxt->andptr++ = Pe;
*ctxt->andptr++ = Pm;
break;
case Pf2: /* xmm opcode escape */
case Pf3:
*ctxt->andptr++ = o->prefix;
*ctxt->andptr++ = Pm;
break;
case Pm: /* opcode escape */
*ctxt->andptr++ = Pm;
break;
case Pe: /* 16 bit escape */
*ctxt->andptr++ = Pe;
break;
case Pb: /* botch */
break;
}
op = o->op[z];
switch(t[2]) {
default:
ctxt->diag("asmins: unknown z %d %P"