target-sparc/op.c - third_party/qemu - Git at Google

 /*
    SPARC micro operations

    Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

 #include "exec.h"

  /*XXX*/
 #define REGNAME g0
 #define REG (env->gregs[0])
 #include "op_template.h"
 #define REGNAME g1
 #define REG (env->gregs[1])
 #include "op_template.h"
 #define REGNAME g2
 #define REG (env->gregs[2])
 #include "op_template.h"
 #define REGNAME g3
 #define REG (env->gregs[3])
 #include "op_template.h"
 #define REGNAME g4
 #define REG (env->gregs[4])
 #include "op_template.h"
 #define REGNAME g5
 #define REG (env->gregs[5])
 #include "op_template.h"
 #define REGNAME g6
 #define REG (env->gregs[6])
 #include "op_template.h"
 #define REGNAME g7
 #define REG (env->gregs[7])
 #include "op_template.h"
 #define REGNAME i0
 #define REG (env->regwptr[16])
 #include "op_template.h"
 #define REGNAME i1
 #define REG (env->regwptr[17])
 #include "op_template.h"
 #define REGNAME i2
 #define REG (env->regwptr[18])
 #include "op_template.h"
 #define REGNAME i3
 #define REG (env->regwptr[19])
 #include "op_template.h"
 #define REGNAME i4
 #define REG (env->regwptr[20])
 #include "op_template.h"
 #define REGNAME i5
 #define REG (env->regwptr[21])
 #include "op_template.h"
 #define REGNAME i6
 #define REG (env->regwptr[22])
 #include "op_template.h"
 #define REGNAME i7
 #define REG (env->regwptr[23])
 #include "op_template.h"
 #define REGNAME l0
 #define REG (env->regwptr[8])
 #include "op_template.h"
 #define REGNAME l1
 #define REG (env->regwptr[9])
 #include "op_template.h"
 #define REGNAME l2
 #define REG (env->regwptr[10])
 #include "op_template.h"
 #define REGNAME l3
 #define REG (env->regwptr[11])
 #include "op_template.h"
 #define REGNAME l4
 #define REG (env->regwptr[12])
 #include "op_template.h"
 #define REGNAME l5
 #define REG (env->regwptr[13])
 #include "op_template.h"
 #define REGNAME l6
 #define REG (env->regwptr[14])
 #include "op_template.h"
 #define REGNAME l7
 #define REG (env->regwptr[15])
 #include "op_template.h"
 #define REGNAME o0
 #define REG (env->regwptr[0])
 #include "op_template.h"
 #define REGNAME o1
 #define REG (env->regwptr[1])
 #include "op_template.h"
 #define REGNAME o2
 #define REG (env->regwptr[2])
 #include "op_template.h"
 #define REGNAME o3
 #define REG (env->regwptr[3])
 #include "op_template.h"
 #define REGNAME o4
 #define REG (env->regwptr[4])
 #include "op_template.h"
 #define REGNAME o5
 #define REG (env->regwptr[5])
 #include "op_template.h"
 #define REGNAME o6
 #define REG (env->regwptr[6])
 #include "op_template.h"
 #define REGNAME o7
 #define REG (env->regwptr[7])
 #include "op_template.h"
 #define EIP (env->pc)

 #define FLAG_SET(x) (env->psr&x)?1:0

 void OPPROTO op_movl_T0_0(void)
 {
     T0 = 0;
 }

 void OPPROTO op_movl_T0_1(void)
 {
     T0 = 1;
 }

 void OPPROTO op_movl_T0_im(void)
 {
     T0 = PARAM1;
 }

 void OPPROTO op_movl_T1_im(void)
 {
     T1 = PARAM1;
 }

 void OPPROTO op_movl_T2_im(void)
 {
     T2 = PARAM1;
 }

 void OPPROTO op_addl_T1_im(void)
 {
     T1 += PARAM1;
 }

 void OPPROTO op_addl_T1_T2(void)
 {
     T1 += T2;
 }

 void OPPROTO op_subl_T1_T2(void)
 {
     T1 -= T2;
 }

 void OPPROTO op_add_T1_T0(void)
 {
     T0 += T1;
 }

 void OPPROTO op_add_T1_T0_cc(void)
 {
     unsigned int src1;
     src1 = T0;
     T0 += T1;
     env->psr = 0;
     if (!T0)
 	env->psr |= PSR_ZERO;
     if ((int) T0 < 0)
 	env->psr |= PSR_NEG;
     if (T0 < src1)
 	env->psr |= PSR_CARRY;
     if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
 	env->psr |= PSR_OVF;
     FORCE_RET();
 }

 void OPPROTO op_sub_T1_T0(void)
 {
     T0 -= T1;
 }

 void OPPROTO op_sub_T1_T0_cc(void)
 {
     unsigned int src1;

     src1 = T0;
     T0 -= T1;
     env->psr = 0;
     if (!T0)
 	env->psr |= PSR_ZERO;
     if ((int) T0 < 0)
 	env->psr |= PSR_NEG;
     if (src1 < T1)
 	env->psr |= PSR_CARRY;
     if (((src1 ^ T1) & (src1 ^ T0)) & (1 << 31))
 	env->psr |= PSR_OVF;
     FORCE_RET();
 }

 void OPPROTO op_and_T1_T0(void)
 {
     T0 &= T1;
 }

 void OPPROTO op_or_T1_T0(void)
 {
     T0 |= T1;
 }

 void OPPROTO op_xor_T1_T0(void)
 {
     T0 ^= T1;
 }

 void OPPROTO op_andn_T1_T0(void)
 {
     T0 &= ~T1;
 }

 void OPPROTO op_orn_T1_T0(void)
 {
     T0 |= ~T1;
 }

 void OPPROTO op_xnor_T1_T0(void)
 {
     T0 ^= ~T1;
 }

 void OPPROTO op_addx_T1_T0(void)
 {
     T0 += T1 + ((env->psr & PSR_CARRY) ? 1 : 0);
 }

 void OPPROTO op_umul_T1_T0(void)
 {
     uint64_t res;
     res = (uint64_t) T0 *(uint64_t) T1;
     T0 = res & 0xffffffff;
     env->y = res >> 32;
 }

 void OPPROTO op_smul_T1_T0(void)
 {
     uint64_t res;
     res = (int64_t) ((int32_t) T0) * (int64_t) ((int32_t) T1);
     T0 = res & 0xffffffff;
     env->y = res >> 32;
 }

 void OPPROTO op_mulscc_T1_T0(void)
 {
     unsigned int b1, C, V, b2, src1;
     C = FLAG_SET(PSR_CARRY);
     V = FLAG_SET(PSR_OVF);
     b1 = C ^ V;
     b2 = T0 & 1;
     T0 = (b1 << 31) | (T0 >> 1);
     if (!(env->y & 1))
         T1 = 0;
     /* do addition and update flags */
     src1 = T0;
     T0 += T1;
     env->psr = 0;
     if (!T0)
 	env->psr |= PSR_ZERO;
     if ((int) T0 < 0)
 	env->psr |= PSR_NEG;
     if (T0 < src1)
 	env->psr |= PSR_CARRY;
     if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
 	env->psr |= PSR_OVF;
     env->y = (b2 << 31) | (env->y >> 1);
     FORCE_RET();
 }

 void OPPROTO op_udiv_T1_T0(void)
 {
     uint64_t x0;
     uint32_t x1;

     x0 = T0 | ((uint64_t) (env->y) << 32);
     x1 = T1;
     x0 = x0 / x1;
     if (x0 > 0xffffffff) {
 	T0 = 0xffffffff;
 	T1 = 1;
     } else {
 	T0 = x0;
 	T1 = 0;
     }
     FORCE_RET();
 }

 void OPPROTO op_sdiv_T1_T0(void)
 {
     int64_t x0;
     int32_t x1;

     x0 = T0 | ((uint64_t) (env->y) << 32);
     x1 = T1;
     x0 = x0 / x1;
     if ((int32_t) x0 != x0) {
 	T0 = x0 >> 63;
 	T1 = 1;
     } else {
 	T0 = x0;
 	T1 = 0;
     }
     FORCE_RET();
 }

 void OPPROTO op_div_cc(void)
 {
     env->psr = 0;
     if (!T0)
 	env->psr |= PSR_ZERO;
     if ((int) T0 < 0)
 	env->psr |= PSR_NEG;
     if (T1)
 	env->psr |= PSR_OVF;
     FORCE_RET();
 }

 void OPPROTO op_subx_T1_T0(void)
 {
     T0 -= T1 + ((env->psr & PSR_CARRY) ? 1 : 0);
 }

 void OPPROTO op_logic_T0_cc(void)
 {
     env->psr = 0;
     if (!T0)
 	env->psr |= PSR_ZERO;
     if ((int) T0 < 0)
 	env->psr |= PSR_NEG;
     FORCE_RET();
 }

 void OPPROTO op_set_flags(void)
 {
     env->psr = 0;
     if (!T0)
 	env->psr |= PSR_ZERO;
     if ((unsigned int) T0 < (unsigned int) T1)
 	env->psr |= PSR_CARRY;
     if ((int) T0 < (int) T1)
 	env->psr |= PSR_OVF;
     if ((int) T0 < 0)
 	env->psr |= PSR_NEG;
     FORCE_RET();
 }

 void OPPROTO op_sll(void)
 {
     T0 <<= T1;
 }

 void OPPROTO op_srl(void)
 {
     T0 >>= T1;
 }

 void OPPROTO op_sra(void)
 {
     T0 = ((int32_t) T0) >> T1;
 }

 void OPPROTO op_st(void)
 {
     stl((void *) T0, T1);
 }

 void OPPROTO op_stb(void)
 {
     stb((void *) T0, T1);
 }

 void OPPROTO op_sth(void)
 {
     stw((void *) T0, T1);
 }

 void OPPROTO op_std(void)
 {
     stl((void *) T0, T1);
     stl((void *) (T0 + 4), T2);
 }

 void OPPROTO op_ld(void)
 {
     T1 = ldl((void *) T0);
 }

 void OPPROTO op_ldub(void)
 {
     T1 = ldub((void *) T0);
 }

 void OPPROTO op_lduh(void)
 {
     T1 = lduw((void *) T0);
 }

 void OPPROTO op_ldsb(void)
 {
     T1 = ldsb((void *) T0);
 }

 void OPPROTO op_ldsh(void)
 {
     T1 = ldsw((void *) T0);
 }

 void OPPROTO op_ldstub(void)
 {
     T1 = ldub((void *) T0);
     stb((void *) T0, 0xff);	/* XXX: Should be Atomically */
 }

 void OPPROTO op_swap(void)
 {
     unsigned int tmp = ldl((void *) T0);
     stl((void *) T0, T1);	/* XXX: Should be Atomically */
     T1 = tmp;
 }

 void OPPROTO op_ldd(void)
 {
     T1 = ldl((void *) T0);
     T0 = ldl((void *) (T0 + 4));
 }

 void OPPROTO op_wry(void)
 {
     env->y = T0;
 }

 void OPPROTO op_rdy(void)
 {
     T0 = env->y;
 }

 void raise_exception(int tt)
 {
     env->exception_index = tt;
     cpu_loop_exit();
 }

 void memcpy32(uint32_t *dst, const uint32_t *src)
 {
     dst[0] = src[0];
     dst[1] = src[1];
     dst[2] = src[2];
     dst[3] = src[3];
     dst[4] = src[4];
     dst[5] = src[5];
     dst[6] = src[6];
     dst[7] = src[7];
 }

 static inline void set_cwp(int new_cwp)
 {
     /* put the modified wrap registers at their proper location */
     if (env->cwp == (NWINDOWS - 1))
         memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
     env->cwp = new_cwp;
     /* put the wrap registers at their temporary location */
     if (new_cwp == (NWINDOWS - 1))
         memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
     env->regwptr = env->regbase + (new_cwp * 16);
 }

 /* XXX: use another pointer for %iN registers to avoid slow wrapping
    handling ? */
 void OPPROTO op_save(void)
 {
     int cwp;
     cwp = (env->cwp - 1) & (NWINDOWS - 1);
     if (env->wim & (1 << cwp)) {
         raise_exception(TT_WIN_OVF);
     }
     set_cwp(cwp);
     FORCE_RET();
 }

 void OPPROTO op_restore(void)
 {
     int cwp;
     cwp = (env->cwp + 1) & (NWINDOWS - 1);
     if (env->wim & (1 << cwp)) {
         raise_exception(TT_WIN_UNF);
     }
     set_cwp(cwp);
     FORCE_RET();
 }

 void OPPROTO op_exception(void)
 {
     env->exception_index = PARAM1;
     cpu_loop_exit();
 }

 void OPPROTO op_trap_T0(void)
 {
     env->exception_index = TT_TRAP + (T0 & 0x7f);
     cpu_loop_exit();
 }

 void OPPROTO op_trapcc_T0(void)
 {
     if (T2) {
         env->exception_index = TT_TRAP + (T0 & 0x7f);
         cpu_loop_exit();
     }
     FORCE_RET();
 }

 void OPPROTO op_exit_tb(void)
 {
     EXIT_TB();
 }

 void OPPROTO op_eval_be(void)
 {
     T2 = (env->psr & PSR_ZERO);
 }

 void OPPROTO op_eval_ble(void)
 {
     unsigned int Z = FLAG_SET(PSR_ZERO), N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

     T2 = Z | (N ^ V);
 }

 void OPPROTO op_eval_bl(void)
 {
     unsigned int N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

     T2 = N ^ V;
 }

 void OPPROTO op_eval_bleu(void)
 {
     unsigned int Z = FLAG_SET(PSR_ZERO), C = FLAG_SET(PSR_CARRY);

     T2 = C | Z;
 }

 void OPPROTO op_eval_bcs(void)
 {
     T2 = (env->psr & PSR_CARRY);
 }

 void OPPROTO op_eval_bvs(void)
 {
     T2 = (env->psr & PSR_OVF);
 }

 void OPPROTO op_eval_bneg(void)
 {
     T2 = (env->psr & PSR_NEG);
 }

 void OPPROTO op_eval_bne(void)
 {
     T2 = !(env->psr & PSR_ZERO);
 }

 void OPPROTO op_eval_bg(void)
 {
     unsigned int Z = FLAG_SET(PSR_ZERO), N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

     T2 = !(Z | (N ^ V));
 }

 void OPPROTO op_eval_bge(void)
 {
     unsigned int N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

     T2 = !(N ^ V);
 }

 void OPPROTO op_eval_bgu(void)
 {
     unsigned int Z = FLAG_SET(PSR_ZERO), C = FLAG_SET(PSR_CARRY);

     T2 = !(C | Z);
 }

 void OPPROTO op_eval_bcc(void)
 {
     T2 = !(env->psr & PSR_CARRY);
 }

 void OPPROTO op_eval_bpos(void)
 {
     T2 = !(env->psr & PSR_NEG);
 }

 void OPPROTO op_eval_bvc(void)
 {
     T2 = !(env->psr & PSR_OVF);
 }

 void OPPROTO op_movl_T2_0(void)
 {
     T2 = 0;
 }

 void OPPROTO op_movl_T2_1(void)
 {
     T2 = 1;
 }

 void OPPROTO op_jmp_im(void)
 {
     env->pc = PARAM1;
 }

 void OPPROTO op_movl_npc_im(void)
 {
     env->npc = PARAM1;
 }

 void OPPROTO op_movl_npc_T0(void)
 {
     env->npc = T0;
 }

 void OPPROTO op_next_insn(void)
 {
     env->pc = env->npc;
     env->npc = env->npc + 4;
 }

 void OPPROTO op_branch(void)
 {
     env->npc = PARAM3; /* XXX: optimize */
     JUMP_TB(op_branch, PARAM1, 0, PARAM2);
 }

 void OPPROTO op_branch2(void)
 {
     if (T2) {
         env->npc = PARAM2 + 4;
         JUMP_TB(op_branch2, PARAM1, 0, PARAM2);
     } else {
         env->npc = PARAM3 + 4;
         JUMP_TB(op_branch2, PARAM1, 1, PARAM3);
     }
     FORCE_RET();
 }

 void OPPROTO op_branch_a(void)
 {
     if (T2) {
 	env->npc = PARAM2; /* XXX: optimize */
         JUMP_TB(op_generic_branch_a, PARAM1, 0, PARAM3);
     } else {
 	env->npc = PARAM3 + 8; /* XXX: optimize */
         JUMP_TB(op_generic_branch_a, PARAM1, 1, PARAM3 + 4);
     }
     FORCE_RET();
 }

 void OPPROTO op_generic_branch(void)
 {
     if (T2) {
 	env->npc = PARAM1;
     } else {
 	env->npc = PARAM2;
     }
     FORCE_RET();
 }

 void OPPROTO op_flush_T0(void)
 {
     helper_flush(T0);
 }
	/*
	SPARC micro operations

	Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at>

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Lesser General Public
	License as published by the Free Software Foundation; either
	version 2 of the License, or (at your option) any later version.

	This library is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public
	License along with this library; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*/

	#include "exec.h"

	/XXX/
	#define REGNAME g0
	#define REG (env->gregs[0])
	#include "op_template.h"
	#define REGNAME g1
	#define REG (env->gregs[1])
	#include "op_template.h"
	#define REGNAME g2
	#define REG (env->gregs[2])
	#include "op_template.h"
	#define REGNAME g3
	#define REG (env->gregs[3])
	#include "op_template.h"
	#define REGNAME g4
	#define REG (env->gregs[4])
	#include "op_template.h"
	#define REGNAME g5
	#define REG (env->gregs[5])
	#include "op_template.h"
	#define REGNAME g6
	#define REG (env->gregs[6])
	#include "op_template.h"
	#define REGNAME g7
	#define REG (env->gregs[7])
	#include "op_template.h"
	#define REGNAME i0
	#define REG (env->regwptr[16])
	#include "op_template.h"
	#define REGNAME i1
	#define REG (env->regwptr[17])
	#include "op_template.h"
	#define REGNAME i2
	#define REG (env->regwptr[18])
	#include "op_template.h"
	#define REGNAME i3
	#define REG (env->regwptr[19])
	#include "op_template.h"
	#define REGNAME i4
	#define REG (env->regwptr[20])
	#include "op_template.h"
	#define REGNAME i5
	#define REG (env->regwptr[21])
	#include "op_template.h"
	#define REGNAME i6
	#define REG (env->regwptr[22])
	#include "op_template.h"
	#define REGNAME i7
	#define REG (env->regwptr[23])
	#include "op_template.h"
	#define REGNAME l0
	#define REG (env->regwptr[8])
	#include "op_template.h"
	#define REGNAME l1
	#define REG (env->regwptr[9])
	#include "op_template.h"
	#define REGNAME l2
	#define REG (env->regwptr[10])
	#include "op_template.h"
	#define REGNAME l3
	#define REG (env->regwptr[11])
	#include "op_template.h"
	#define REGNAME l4
	#define REG (env->regwptr[12])
	#include "op_template.h"
	#define REGNAME l5
	#define REG (env->regwptr[13])
	#include "op_template.h"
	#define REGNAME l6
	#define REG (env->regwptr[14])
	#include "op_template.h"
	#define REGNAME l7
	#define REG (env->regwptr[15])
	#include "op_template.h"
	#define REGNAME o0
	#define REG (env->regwptr[0])
	#include "op_template.h"
	#define REGNAME o1
	#define REG (env->regwptr[1])
	#include "op_template.h"
	#define REGNAME o2
	#define REG (env->regwptr[2])
	#include "op_template.h"
	#define REGNAME o3
	#define REG (env->regwptr[3])
	#include "op_template.h"
	#define REGNAME o4
	#define REG (env->regwptr[4])
	#include "op_template.h"
	#define REGNAME o5
	#define REG (env->regwptr[5])
	#include "op_template.h"
	#define REGNAME o6
	#define REG (env->regwptr[6])
	#include "op_template.h"
	#define REGNAME o7
	#define REG (env->regwptr[7])
	#include "op_template.h"
	#define EIP (env->pc)

	#define FLAG_SET(x) (env->psr&x)?1:0

	void OPPROTO op_movl_T0_0(void)
	{
	T0 = 0;
	}

	void OPPROTO op_movl_T0_1(void)
	{
	T0 = 1;
	}

	void OPPROTO op_movl_T0_im(void)
	{
	T0 = PARAM1;
	}

	void OPPROTO op_movl_T1_im(void)
	{
	T1 = PARAM1;
	}

	void OPPROTO op_movl_T2_im(void)
	{
	T2 = PARAM1;
	}

	void OPPROTO op_addl_T1_im(void)
	{
	T1 += PARAM1;
	}

	void OPPROTO op_addl_T1_T2(void)
	{
	T1 += T2;
	}

	void OPPROTO op_subl_T1_T2(void)
	{
	T1 -= T2;
	}

	void OPPROTO op_add_T1_T0(void)
	{
	T0 += T1;
	}

	void OPPROTO op_add_T1_T0_cc(void)
	{
	unsigned int src1;
	src1 = T0;
	T0 += T1;
	env->psr = 0;
	if (!T0)
	env->psr \|= PSR_ZERO;
	if ((int) T0 < 0)
	env->psr \|= PSR_NEG;
	if (T0 < src1)
	env->psr \|= PSR_CARRY;
	if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
	env->psr \|= PSR_OVF;
	FORCE_RET();
	}

	void OPPROTO op_sub_T1_T0(void)
	{
	T0 -= T1;
	}

	void OPPROTO op_sub_T1_T0_cc(void)
	{
	unsigned int src1;

	src1 = T0;
	T0 -= T1;
	env->psr = 0;
	if (!T0)
	env->psr \|= PSR_ZERO;
	if ((int) T0 < 0)
	env->psr \|= PSR_NEG;
	if (src1 < T1)
	env->psr \|= PSR_CARRY;
	if (((src1 ^ T1) & (src1 ^ T0)) & (1 << 31))
	env->psr \|= PSR_OVF;
	FORCE_RET();
	}

	void OPPROTO op_and_T1_T0(void)
	{
	T0 &= T1;
	}

	void OPPROTO op_or_T1_T0(void)
	{
	T0 \|= T1;
	}

	void OPPROTO op_xor_T1_T0(void)
	{
	T0 ^= T1;
	}

	void OPPROTO op_andn_T1_T0(void)
	{
	T0 &= ~T1;
	}

	void OPPROTO op_orn_T1_T0(void)
	{
	T0 \|= ~T1;
	}

	void OPPROTO op_xnor_T1_T0(void)
	{
	T0 ^= ~T1;
	}

	void OPPROTO op_addx_T1_T0(void)
	{
	T0 += T1 + ((env->psr & PSR_CARRY) ? 1 : 0);
	}

	void OPPROTO op_umul_T1_T0(void)
	{
	uint64_t res;
	res = (uint64_t) T0 *(uint64_t) T1;
	T0 = res & 0xffffffff;
	env->y = res >> 32;
	}

	void OPPROTO op_smul_T1_T0(void)
	{
	uint64_t res;
	res = (int64_t) ((int32_t) T0) * (int64_t) ((int32_t) T1);
	T0 = res & 0xffffffff;
	env->y = res >> 32;
	}

	void OPPROTO op_mulscc_T1_T0(void)
	{
	unsigned int b1, C, V, b2, src1;
	C = FLAG_SET(PSR_CARRY);
	V = FLAG_SET(PSR_OVF);
	b1 = C ^ V;
	b2 = T0 & 1;
	T0 = (b1 << 31) \| (T0 >> 1);
	if (!(env->y & 1))
	T1 = 0;
	/* do addition and update flags */
	src1 = T0;
	T0 += T1;
	env->psr = 0;
	if (!T0)
	env->psr \|= PSR_ZERO;
	if ((int) T0 < 0)
	env->psr \|= PSR_NEG;
	if (T0 < src1)
	env->psr \|= PSR_CARRY;
	if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
	env->psr \|= PSR_OVF;
	env->y = (b2 << 31) \| (env->y >> 1);
	FORCE_RET();
	}

	void OPPROTO op_udiv_T1_T0(void)
	{
	uint64_t x0;
	uint32_t x1;

	x0 = T0 \| ((uint64_t) (env->y) << 32);
	x1 = T1;
	x0 = x0 / x1;
	if (x0 > 0xffffffff) {
	T0 = 0xffffffff;
	T1 = 1;
	} else {
	T0 = x0;
	T1 = 0;
	}
	FORCE_RET();
	}

	void OPPROTO op_sdiv_T1_T0(void)
	{
	int64_t x0;
	int32_t x1;

	x0 = T0 \| ((uint64_t) (env->y) << 32);
	x1 = T1;
	x0 = x0 / x1;
	if ((int32_t) x0 != x0) {
	T0 = x0 >> 63;
	T1 = 1;
	} else {
	T0 = x0;
	T1 = 0;
	}
	FORCE_RET();
	}

	void OPPROTO op_div_cc(void)
	{
	env->psr = 0;
	if (!T0)
	env->psr \|= PSR_ZERO;
	if ((int) T0 < 0)
	env->psr \|= PSR_NEG;
	if (T1)
	env->psr \|= PSR_OVF;
	FORCE_RET();
	}

	void OPPROTO op_subx_T1_T0(void)
	{
	T0 -= T1 + ((env->psr & PSR_CARRY) ? 1 : 0);
	}

	void OPPROTO op_logic_T0_cc(void)
	{
	env->psr = 0;
	if (!T0)
	env->psr \|= PSR_ZERO;
	if ((int) T0 < 0)
	env->psr \|= PSR_NEG;
	FORCE_RET();
	}

	void OPPROTO op_set_flags(void)
	{
	env->psr = 0;
	if (!T0)
	env->psr \|= PSR_ZERO;
	if ((unsigned int) T0 < (unsigned int) T1)
	env->psr \|= PSR_CARRY;
	if ((int) T0 < (int) T1)
	env->psr \|= PSR_OVF;
	if ((int) T0 < 0)
	env->psr \|= PSR_NEG;
	FORCE_RET();
	}

	void OPPROTO op_sll(void)
	{
	T0 <<= T1;
	}

	void OPPROTO op_srl(void)
	{
	T0 >>= T1;
	}

	void OPPROTO op_sra(void)
	{
	T0 = ((int32_t) T0) >> T1;
	}

	void OPPROTO op_st(void)
	{
	stl((void *) T0, T1);
	}

	void OPPROTO op_stb(void)
	{
	stb((void *) T0, T1);
	}

	void OPPROTO op_sth(void)
	{
	stw((void *) T0, T1);
	}

	void OPPROTO op_std(void)
	{
	stl((void *) T0, T1);
	stl((void *) (T0 + 4), T2);
	}

	void OPPROTO op_ld(void)
	{
	T1 = ldl((void *) T0);
	}

	void OPPROTO op_ldub(void)
	{
	T1 = ldub((void *) T0);
	}

	void OPPROTO op_lduh(void)
	{
	T1 = lduw((void *) T0);
	}

	void OPPROTO op_ldsb(void)
	{
	T1 = ldsb((void *) T0);
	}

	void OPPROTO op_ldsh(void)
	{
	T1 = ldsw((void *) T0);
	}

	void OPPROTO op_ldstub(void)
	{
	T1 = ldub((void *) T0);
	stb((void ) T0, 0xff); / XXX: Should be Atomically */
	}

	void OPPROTO op_swap(void)
	{
	unsigned int tmp = ldl((void *) T0);
	stl((void ) T0, T1); / XXX: Should be Atomically */
	T1 = tmp;
	}

	void OPPROTO op_ldd(void)
	{
	T1 = ldl((void *) T0);
	T0 = ldl((void *) (T0 + 4));
	}

	void OPPROTO op_wry(void)
	{
	env->y = T0;
	}

	void OPPROTO op_rdy(void)
	{
	T0 = env->y;
	}

	void raise_exception(int tt)
	{
	env->exception_index = tt;
	cpu_loop_exit();
	}

	void memcpy32(uint32_t dst, const uint32_t src)
	{
	dst[0] = src[0];
	dst[1] = src[1];
	dst[2] = src[2];
	dst[3] = src[3];
	dst[4] = src[4];
	dst[5] = src[5];
	dst[6] = src[6];
	dst[7] = src[7];
	}

	static inline void set_cwp(int new_cwp)
	{
	/* put the modified wrap registers at their proper location */
	if (env->cwp == (NWINDOWS - 1))
	memcpy32(env->regbase, env->regbase + NWINDOWS * 16);
	env->cwp = new_cwp;
	/* put the wrap registers at their temporary location */
	if (new_cwp == (NWINDOWS - 1))
	memcpy32(env->regbase + NWINDOWS * 16, env->regbase);
	env->regwptr = env->regbase + (new_cwp * 16);
	}

	/* XXX: use another pointer for %iN registers to avoid slow wrapping
	handling ? */
	void OPPROTO op_save(void)
	{
	int cwp;
	cwp = (env->cwp - 1) & (NWINDOWS - 1);
	if (env->wim & (1 << cwp)) {
	raise_exception(TT_WIN_OVF);
	}
	set_cwp(cwp);
	FORCE_RET();
	}

	void OPPROTO op_restore(void)
	{
	int cwp;
	cwp = (env->cwp + 1) & (NWINDOWS - 1);
	if (env->wim & (1 << cwp)) {
	raise_exception(TT_WIN_UNF);
	}
	set_cwp(cwp);
	FORCE_RET();
	}

	void OPPROTO op_exception(void)
	{
	env->exception_index = PARAM1;
	cpu_loop_exit();
	}

	void OPPROTO op_trap_T0(void)
	{
	env->exception_index = TT_TRAP + (T0 & 0x7f);
	cpu_loop_exit();
	}

	void OPPROTO op_trapcc_T0(void)
	{
	if (T2) {
	env->exception_index = TT_TRAP + (T0 & 0x7f);
	cpu_loop_exit();
	}
	FORCE_RET();
	}

	void OPPROTO op_exit_tb(void)
	{
	EXIT_TB();
	}

	void OPPROTO op_eval_be(void)
	{
	T2 = (env->psr & PSR_ZERO);
	}

	void OPPROTO op_eval_ble(void)
	{
	unsigned int Z = FLAG_SET(PSR_ZERO), N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

	T2 = Z \| (N ^ V);
	}

	void OPPROTO op_eval_bl(void)
	{
	unsigned int N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

	T2 = N ^ V;
	}

	void OPPROTO op_eval_bleu(void)
	{
	unsigned int Z = FLAG_SET(PSR_ZERO), C = FLAG_SET(PSR_CARRY);

	T2 = C \| Z;
	}

	void OPPROTO op_eval_bcs(void)
	{
	T2 = (env->psr & PSR_CARRY);
	}

	void OPPROTO op_eval_bvs(void)
	{
	T2 = (env->psr & PSR_OVF);
	}

	void OPPROTO op_eval_bneg(void)
	{
	T2 = (env->psr & PSR_NEG);
	}

	void OPPROTO op_eval_bne(void)
	{
	T2 = !(env->psr & PSR_ZERO);
	}

	void OPPROTO op_eval_bg(void)
	{
	unsigned int Z = FLAG_SET(PSR_ZERO), N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

	T2 = !(Z \| (N ^ V));
	}

	void OPPROTO op_eval_bge(void)
	{
	unsigned int N = FLAG_SET(PSR_NEG), V = FLAG_SET(PSR_OVF);

	T2 = !(N ^ V);
	}

	void OPPROTO op_eval_bgu(void)
	{
	unsigned int Z = FLAG_SET(PSR_ZERO), C = FLAG_SET(PSR_CARRY);

	T2 = !(C \| Z);
	}

	void OPPROTO op_eval_bcc(void)
	{
	T2 = !(env->psr & PSR_CARRY);
	}

	void OPPROTO op_eval_bpos(void)
	{
	T2 = !(env->psr & PSR_NEG);
	}

	void OPPROTO op_eval_bvc(void)
	{
	T2 = !(env->psr & PSR_OVF);
	}

	void OPPROTO op_movl_T2_0(void)
	{
	T2 = 0;
	}

	void OPPROTO op_movl_T2_1(void)
	{
	T2 = 1;
	}

	void OPPROTO op_jmp_im(void)
	{
	env->pc = PARAM1;
	}

	void OPPROTO op_movl_npc_im(void)
	{
	env->npc = PARAM1;
	}

	void OPPROTO op_movl_npc_T0(void)
	{
	env->npc = T0;
	}

	void OPPROTO op_next_insn(void)
	{
	env->pc = env->npc;
	env->npc = env->npc + 4;
	}

	void OPPROTO op_branch(void)
	{
	env->npc = PARAM3; /* XXX: optimize */
	JUMP_TB(op_branch, PARAM1, 0, PARAM2);
	}

	void OPPROTO op_branch2(void)
	{
	if (T2) {
	env->npc = PARAM2 + 4;
	JUMP_TB(op_branch2, PARAM1, 0, PARAM2);
	} else {
	env->npc = PARAM3 + 4;
	JUMP_TB(op_branch2, PARAM1, 1, PARAM3);
	}
	FORCE_RET();
	}

	void OPPROTO op_branch_a(void)
	{
	if (T2) {
	env->npc = PARAM2; /* XXX: optimize */
	JUMP_TB(op_generic_branch_a, PARAM1, 0, PARAM3);
	} else {
	env->npc = PARAM3 + 8; /* XXX: optimize */
	JUMP_TB(op_generic_branch_a, PARAM1, 1, PARAM3 + 4);
	}
	FORCE_RET();
	}

	void OPPROTO op_generic_branch(void)
	{
	if (T2) {
	env->npc = PARAM1;
	} else {
	env->npc = PARAM2;
	}
	FORCE_RET();
	}

	void OPPROTO op_flush_T0(void)
	{
	helper_flush(T0);
	}