CRIS micro-ops

new file mode 100644
index 0000000..70b9299
@@ -0,0 +1,1289 @@
+/*
+ *  CRIS emulation micro-operations for qemu.
+ * 
+ *  Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
+ *
+ * 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"
+
+#define REGNAME r0
+#define REG (env->regs[0])
+#include "op_template.h"
+
+#define REGNAME r1
+#define REG (env->regs[1])
+#include "op_template.h"
+
+#define REGNAME r2
+#define REG (env->regs[2])
+#include "op_template.h"
+
+#define REGNAME r3
+#define REG (env->regs[3])
+#include "op_template.h"
+
+#define REGNAME r4
+#define REG (env->regs[4])
+#include "op_template.h"
+
+#define REGNAME r5
+#define REG (env->regs[5])
+#include "op_template.h"
+
+#define REGNAME r6
+#define REG (env->regs[6])
+#include "op_template.h"
+
+#define REGNAME r7
+#define REG (env->regs[7])
+#include "op_template.h"
+
+#define REGNAME r8
+#define REG (env->regs[8])
+#include "op_template.h"
+
+#define REGNAME r9
+#define REG (env->regs[9])
+#include "op_template.h"
+
+#define REGNAME r10
+#define REG (env->regs[10])
+#include "op_template.h"
+
+#define REGNAME r11
+#define REG (env->regs[11])
+#include "op_template.h"
+
+#define REGNAME r12
+#define REG (env->regs[12])
+#include "op_template.h"
+
+#define REGNAME r13
+#define REG (env->regs[13])
+#include "op_template.h"
+
+#define REGNAME r14
+#define REG (env->regs[14])
+#include "op_template.h"
+
+#define REGNAME r15
+#define REG (env->regs[15])
+#include "op_template.h"
+
+
+#define REGNAME p0
+#define REG (env->pregs[0])
+#include "op_template.h"
+
+#define REGNAME p1
+#define REG (env->pregs[1])
+#include "op_template.h"
+
+#define REGNAME p2
+#define REG (env->pregs[2])
+#include "op_template.h"
+
+#define REGNAME p3
+#define REG (env->pregs[3])
+#include "op_template.h"
+
+#define REGNAME p4
+#define REG (env->pregs[4])
+#include "op_template.h"
+
+#define REGNAME p5
+#define REG (env->pregs[5])
+#include "op_template.h"
+
+#define REGNAME p6
+#define REG (env->pregs[6])
+#include "op_template.h"
+
+#define REGNAME p7
+#define REG (env->pregs[7])
+#include "op_template.h"
+
+#define REGNAME p8
+#define REG (env->pregs[8])
+#include "op_template.h"
+
+#define REGNAME p9
+#define REG (env->pregs[9])
+#include "op_template.h"
+
+#define REGNAME p10
+#define REG (env->pregs[10])
+#include "op_template.h"
+
+#define REGNAME p11
+#define REG (env->pregs[11])
+#include "op_template.h"
+
+#define REGNAME p12
+#define REG (env->pregs[12])
+#include "op_template.h"
+
+#define REGNAME p13
+#define REG (env->pregs[13])
+#include "op_template.h"
+
+#define REGNAME p14
+#define REG (env->pregs[14])
+#include "op_template.h"
+
+#define REGNAME p15
+#define REG (env->pregs[15])
+#include "op_template.h"
+
+/* Microcode.  */
+
+void OPPROTO op_exit_tb (void)
+{
+	EXIT_TB();
+}
+
+void OPPROTO op_goto_tb0 (void)
+{
+	GOTO_TB(op_goto_tb0, PARAM1, 0);
+	RETURN();
+}
+
+void OPPROTO op_goto_tb1 (void)
+{
+	GOTO_TB(op_goto_tb1, PARAM1, 1);
+	RETURN();
+}
+
+void OPPROTO op_break_im(void)
+{
+	env->trapnr = PARAM1;
+	env->exception_index = EXCP_BREAK;
+	cpu_loop_exit();
+}
+
+void OPPROTO op_debug(void)
+{
+	env->exception_index = EXCP_DEBUG;
+	cpu_loop_exit();
+}
+
+void OPPROTO op_exec_insn(void)
+{
+	env->stats.exec_insns++;
+	RETURN();
+}
+void OPPROTO op_exec_load(void)
+{
+	env->stats.exec_loads++;
+	RETURN();
+}
+void OPPROTO op_exec_store(void)
+{
+	env->stats.exec_stores++;
+	RETURN();
+}
+
+void OPPROTO op_ccs_lshift (void)
+{
+	uint32_t ccs;
+
+	/* Apply the ccs shift.  */
+	ccs = env->pregs[SR_CCS];
+	ccs = (ccs & 0xc0000000) | ((ccs << 12) >> 2);
+	env->pregs[SR_CCS] = ccs;
+}
+void OPPROTO op_ccs_rshift (void)
+{
+	uint32_t ccs;
+
+	/* Apply the ccs shift.  */
+	ccs = env->pregs[SR_CCS];
+	ccs = (ccs & 0xc0000000) | (ccs >> 10);
+	env->pregs[SR_CCS] = ccs;
+}
+
+void OPPROTO op_setf (void)
+{
+	env->pregs[SR_CCS] |= PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_clrf (void)
+{
+	env->pregs[SR_CCS] &= ~PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_movl_debug1_T0 (void)
+{
+	env->debug1 = T0;
+	RETURN();
+}
+
+void OPPROTO op_movl_debug2_T0 (void)
+{
+	env->debug2 = T0;
+	RETURN();
+}
+
+void OPPROTO op_movl_debug3_T0 (void)
+{
+	env->debug3 = T0;
+	RETURN();
+}
+void OPPROTO op_movl_debug1_T1 (void)
+{
+	env->debug1 = T1;
+	RETURN();
+}
+
+void OPPROTO op_movl_debug2_T1 (void)
+{
+	env->debug2 = T1;
+	RETURN();
+}
+
+void OPPROTO op_movl_debug3_T1 (void)
+{
+	env->debug3 = T1;
+	RETURN();
+}
+void OPPROTO op_movl_debug3_im (void)
+{
+	env->debug3 = PARAM1;
+	RETURN();
+}
+void OPPROTO op_movl_T0_flags (void)
+{
+	T0 = env->pregs[SR_CCS];
+	RETURN();
+}
+void OPPROTO op_movl_flags_T0 (void)
+{
+	env->pregs[SR_CCS] = T0;
+	RETURN();
+}
+
+void OPPROTO op_movl_sreg_T0 (void)
+{
+	env->sregs[env->pregs[SR_SRS]][PARAM1] = T0;
+	RETURN();
+}
+
+void OPPROTO op_movl_tlb_lo_T0 (void)
+{
+	int srs;
+	srs = env->pregs[SR_SRS];
+	if (srs == 1 || srs == 2)
+	{
+		int set;
+		int idx;
+		uint32_t lo, hi;
+
+		idx = set = env->sregs[SFR_RW_MM_TLB_SEL];
+		set >>= 4;
+		set &= 3;
+
+		idx &= 31;
+		/* We've just made a write to tlb_lo.  */
+		lo = env->sregs[SFR_RW_MM_TLB_LO];
+		hi = env->sregs[SFR_RW_MM_TLB_HI];
+		env->tlbsets[srs - 1][set][idx].lo = lo;
+		env->tlbsets[srs - 1][set][idx].hi = hi;
+	}
+
+	RETURN();
+}
+
+void OPPROTO op_movl_T0_sreg (void)
+{
+	T0 = env->sregs[env->pregs[SR_SRS]][PARAM1];
+	RETURN();
+}
+
+void OPPROTO op_update_cc (void)
+{
+	env->cc_op = PARAM1;
+	env->cc_dest = PARAM2;
+	env->cc_src = PARAM3;
+	RETURN();
+}
+
+void OPPROTO op_update_cc_op (void)
+{
+	env->cc_op = PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_update_cc_mask (void)
+{
+	env->cc_mask = PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_update_cc_dest_T0 (void)
+{
+	env->cc_dest = T0;
+	RETURN();
+}
+
+void OPPROTO op_update_cc_result_T0 (void)
+{
+	env->cc_result = T0;
+	RETURN();
+}
+
+void OPPROTO op_update_cc_size_im (void)
+{
+	env->cc_size = PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_update_cc_src_T1 (void)
+{
+	env->cc_src = T1;
+	RETURN();
+}
+void OPPROTO op_update_cc_x (void)
+{
+	env->cc_x_live = PARAM1;
+	env->cc_x = PARAM2;
+	RETURN();
+}
+
+/* FIXME: is this allowed?  */
+extern inline void evaluate_flags_writeback(uint32_t flags)
+{
+	int x;
+
+	/* Extended arithmetics, leave the z flag alone.  */
+	env->debug3 = env->pregs[SR_CCS];
+
+	if (env->cc_x_live)
+		x = env->cc_x;
+	else
+		x = env->pregs[SR_CCS] & X_FLAG;
+
+	if ((x || env->cc_op == CC_OP_ADDC)
+	    && flags & Z_FLAG)
+		env->cc_mask &= ~Z_FLAG;
+
+	/* all insn clear the x-flag except setf or clrf.  */
+	env->pregs[SR_CCS] &= ~(env->cc_mask | X_FLAG);
+	flags &= env->cc_mask;
+	env->pregs[SR_CCS] |= flags;
+	RETURN();
+}
+
+void OPPROTO op_evaluate_flags_muls(void) 
+{
+	uint32_t src;
+	uint32_t dst;
+	uint32_t res;
+	uint32_t flags = 0;
+	/* were gonna have to redo the muls.  */
+	int64_t tmp, t0 ,t1;
+	int32_t mof;
+	int dneg;
+
+	src = env->cc_src;
+	dst = env->cc_dest;
+	res = env->cc_result;
+
+		
+	/* cast into signed values to make GCC sign extend.  */
+	t0 = (int32_t)src;
+	t1 = (int32_t)dst;
+	dneg = ((int32_t)res) < 0;
+		
+	tmp = t0 * t1;
+	mof = tmp >> 32;
+	if (tmp == 0)
+		flags |= Z_FLAG;
+	else if (tmp < 0)
+		flags |= N_FLAG;
+	if ((dneg && mof != -1)
+	    || (!dneg && mof != 0))
+		flags |= V_FLAG;
+	evaluate_flags_writeback(flags);
+	RETURN();
+}
+
+void OPPROTO op_evaluate_flags_mulu(void) 
+{
+	uint32_t src;
+	uint32_t dst;
+	uint32_t res;
+	uint32_t flags = 0;
+	/* were gonna have to redo the muls.  */
+	uint64_t tmp, t0 ,t1;
+	uint32_t mof;
+
+	src = env->cc_src;
+	dst = env->cc_dest;
+	res = env->cc_result;
+
+		
+	/* cast into signed values to make GCC sign extend.  */
+	t0 = src;
+	t1 = dst;
+		
+	tmp = t0 * t1;
+	mof = tmp >> 32;
+	if (tmp == 0)
+		flags |= Z_FLAG;
+	else if (tmp >> 63)
+		flags |= N_FLAG;
+	if (mof)
+		flags |= V_FLAG;		
+
+	evaluate_flags_writeback(flags);
+	RETURN();
+}
+
+void OPPROTO op_evaluate_flags_mcp(void) 
+{
+	uint32_t src;
+	uint32_t dst;
+	uint32_t res;
+	uint32_t flags = 0;
+
+	src = env->cc_src;
+	dst = env->cc_dest;
+	res = env->cc_result;
+
+	if ((res & 0x80000000L) != 0L)
+	{
+		flags |= N_FLAG;
+		if (((src & 0x80000000L) == 0L) 
+		    && ((dst & 0x80000000L) == 0L))
+		{
+			flags |= V_FLAG;
+		}
+		else if (((src & 0x80000000L) != 0L) &&
+			 ((dst & 0x80000000L) != 0L))
+		{
+			flags |= R_FLAG;
+		}
+	}
+	else
+	{
+		if (res == 0L)
+			flags |= Z_FLAG;
+		if (((src & 0x80000000L) != 0L) 
+		    && ((dst & 0x80000000L) != 0L))
+			flags |= V_FLAG;
+		if ((dst & 0x80000000L) != 0L 
+		    || (src & 0x80000000L) != 0L)
+			flags |= R_FLAG;
+	}
+
+	evaluate_flags_writeback(flags);
+	RETURN();
+}
+
+void OPPROTO op_evaluate_flags_alu_4(void) 
+{
+	uint32_t src;
+	uint32_t dst;
+	uint32_t res;
+	uint32_t flags = 0;
+
+	src = env->cc_src;
+	dst = env->cc_dest;
+	res = env->cc_result;
+
+	if ((res & 0x80000000L) != 0L)
+	{
+		flags |= N_FLAG;
+		if (((src & 0x80000000L) == 0L) 
+		    && ((dst & 0x80000000L) == 0L))
+		{
+			flags |= V_FLAG;
+		}
+		else if (((src & 0x80000000L) != 0L) &&
+			 ((dst & 0x80000000L) != 0L))
+		{
+			flags |= C_FLAG;
+		}
+	}
+	else
+	{
+		if (res == 0L)
+			flags |= Z_FLAG;
+		if (((src & 0x80000000L) != 0L) 
+		    && ((dst & 0x80000000L) != 0L))
+			flags |= V_FLAG;
+		if ((dst & 0x80000000L) != 0L 
+		    || (src & 0x80000000L) != 0L)
+			flags |= C_FLAG;
+	}
+
+	if (env->cc_op == CC_OP_SUB
+	    || env->cc_op == CC_OP_CMP) {
+		flags ^= C_FLAG;
+	}
+	evaluate_flags_writeback(flags);
+	RETURN();
+}
+
+void OPPROTO op_evaluate_flags_move_4 (void)
+{
+	uint32_t src;
+	uint32_t res;
+	uint32_t flags = 0;
+
+	src = env->cc_src;
+	res = env->cc_result;
+
+	if ((int32_t)res < 0)
+		flags |= N_FLAG;
+	else if (res == 0L)
+		flags |= Z_FLAG;
+
+	evaluate_flags_writeback(flags);
+	RETURN();
+}
+void OPPROTO op_evaluate_flags_move_2 (void)
+{
+	uint32_t src;
+	uint32_t flags = 0;
+	uint16_t res;
+
+	src = env->cc_src;
+	res = env->cc_result;
+	
+	if ((int16_t)res < 0L)
+		flags |= N_FLAG;
+	else if (res == 0)
+		flags |= Z_FLAG;
+	
+	evaluate_flags_writeback(flags);
+	RETURN();
+}
+
+/* TODO: This is expensive. We could split things up and only evaluate part of
+   CCR on a need to know basis. For now, we simply re-evaluate everything.  */
+void OPPROTO op_evaluate_flags (void)
+{
+	uint32_t src;
+	uint32_t dst;
+	uint32_t res;
+	uint32_t flags = 0;
+
+	src = env->cc_src;
+	dst = env->cc_dest;
+	res = env->cc_result;
+
+
+	/* Now, evaluate the flags. This stuff is based on 
+	   Per Zander's CRISv10 simulator.  */
+	switch (env->cc_size)
+	{
+		case 1:
+			if ((res & 0x80L) != 0L)
+			{
+				flags |= N_FLAG;
+				if (((src & 0x80L) == 0L) 
+				    && ((dst & 0x80L) == 0L))
+				{
+					flags |= V_FLAG;
+				}
+				else if (((src & 0x80L) != 0L) 
+					 && ((dst & 0x80L) != 0L))
+				{
+					flags |= C_FLAG;
+				}
+			}
+			else
+			{
+				if ((res & 0xFFL) == 0L)
+				{
+					flags |= Z_FLAG;
+				}
+				if (((src & 0x80L) != 0L) 
+				    && ((dst & 0x80L) != 0L))
+				{
+					flags |= V_FLAG;
+				}
+				if ((dst & 0x80L) != 0L 
+				    || (src & 0x80L) != 0L)
+				{
+					flags |= C_FLAG;
+				}
+			}			
+			break;
+		case 2:
+			if ((res & 0x8000L) != 0L)
+			{
+				flags |= N_FLAG;
+				if (((src & 0x8000L) == 0L) 
+				    && ((dst & 0x8000L) == 0L))
+				{
+					flags |= V_FLAG;
+				}
+				else if (((src & 0x8000L) != 0L) 
+					 && ((dst & 0x8000L) != 0L))
+				{
+					flags |= C_FLAG;
+				}
+			}
+			else
+			{
+				if ((res & 0xFFFFL) == 0L)
+				{
+					flags |= Z_FLAG;
+				}
+				if (((src & 0x8000L) != 0L) 
+				    && ((dst & 0x8000L) != 0L))
+				{
+					flags |= V_FLAG;
+				}
+				if ((dst & 0x8000L) != 0L 
+				    || (src & 0x8000L) != 0L)
+				{
+					flags |= C_FLAG;
+				}
+			}
+			break;
+		case 4:
+			if ((res & 0x80000000L) != 0L)
+			{
+				flags |= N_FLAG;
+				if (((src & 0x80000000L) == 0L) 
+				    && ((dst & 0x80000000L) == 0L))
+				{
+					flags |= V_FLAG;
+				}
+				else if (((src & 0x80000000L) != 0L) &&
+					 ((dst & 0x80000000L) != 0L))
+				{
+					flags |= C_FLAG;
+				}
+			}
+			else
+			{
+				if (res == 0L)
+					flags |= Z_FLAG;
+				if (((src & 0x80000000L) != 0L) 
+				    && ((dst & 0x80000000L) != 0L))
+					flags |= V_FLAG;
+				if ((dst & 0x80000000L) != 0L 
+				    || (src & 0x80000000L) != 0L)
+					flags |= C_FLAG;
+			}
+			break;
+		default:
+			break;
+	}
+
+	if (env->cc_op == CC_OP_SUB
+	    || env->cc_op == CC_OP_CMP) {
+		flags ^= C_FLAG;
+	}
+	evaluate_flags_writeback(flags);
+	RETURN();
+}
+
+void OPPROTO op_extb_T0_T0 (void)
+{
+	T0 = ((int8_t)T0);
+	RETURN();
+}
+void OPPROTO op_extb_T1_T0 (void)
+{
+	T1 = ((int8_t)T0);
+	RETURN();
+}
+void OPPROTO op_extb_T1_T1 (void)
+{
+	T1 = ((int8_t)T1);
+	RETURN();
+}
+void OPPROTO op_zextb_T0_T0 (void)
+{
+	T0 = ((uint8_t)T0);
+	RETURN();
+}
+void OPPROTO op_zextb_T1_T0 (void)
+{
+	T1 = ((uint8_t)T0);
+	RETURN();
+}
+void OPPROTO op_zextb_T1_T1 (void)
+{
+	T1 = ((uint8_t)T1);
+	RETURN();
+}
+void OPPROTO op_extw_T0_T0 (void)
+{
+	T0 = ((int16_t)T0);
+	RETURN();
+}
+void OPPROTO op_extw_T1_T0 (void)
+{
+	T1 = ((int16_t)T0);
+	RETURN();
+}
+void OPPROTO op_extw_T1_T1 (void)
+{
+	T1 = ((int16_t)T1);
+	RETURN();
+}
+
+void OPPROTO op_zextw_T0_T0 (void)
+{
+	T0 = ((uint16_t)T0);
+	RETURN();
+}
+void OPPROTO op_zextw_T1_T0 (void)
+{
+	T1 = ((uint16_t)T0);
+	RETURN();
+}
+
+void OPPROTO op_zextw_T1_T1 (void)
+{
+	T1 = ((uint16_t)T1);
+	RETURN();
+}
+
+void OPPROTO op_movl_T0_im (void)
+{
+	T0 = PARAM1;
+	RETURN();
+}
+void OPPROTO op_movl_T1_im (void)
+{
+	T1 = PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_addl_T0_im (void)
+{
+	T0 += PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_addl_T1_im (void)
+{
+	T1 += PARAM1;
+	RETURN();
+
+}
+void OPPROTO op_subl_T0_im (void)
+{
+	T0 -= PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_addxl_T0_C (void)
+{
+	if (env->pregs[SR_CCS] & X_FLAG)
+		T0 += !!(env->pregs[SR_CCS] & C_FLAG);
+	RETURN();
+}
+void OPPROTO op_subxl_T0_C (void)
+{
+	if (env->pregs[SR_CCS] & X_FLAG)
+		T0 -= !!(env->pregs[SR_CCS] & C_FLAG);
+	RETURN();
+}
+void OPPROTO op_addl_T0_C (void)
+{
+	T0 += !!(env->pregs[SR_CCS] & C_FLAG);
+	RETURN();
+}
+void OPPROTO op_addl_T0_R (void)
+{
+	T0 += !!(env->pregs[SR_CCS] & R_FLAG);
+	RETURN();
+}
+
+void OPPROTO op_clr_R (void)
+{
+	env->pregs[SR_CCS] &= ~R_FLAG;
+	RETURN();
+}
+
+
+void OPPROTO op_andl_T0_im (void)
+{
+	T0 &= PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_andl_T1_im (void)
+{
+	T1 &= PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_movl_T0_T1 (void)
+{
+	T0 = T1;
+	RETURN();
+}
+
+void OPPROTO op_swp_T0_T1 (void)
+{
+	T0 ^= T1;
+	T1 ^= T0;
+	T0 ^= T1;
+	RETURN();
+}
+
+void OPPROTO op_movl_T1_T0 (void)
+{
+	T1 = T0;
+	RETURN();
+}
+
+void OPPROTO op_movl_pc_T0 (void)
+{
+	env->pc = T0;
+	RETURN();
+}
+
+void OPPROTO op_movl_T0_0 (void)
+{
+	T0 = 0;
+	RETURN();
+}
+
+void OPPROTO op_addl_T0_T1 (void)
+{
+	T0 += T1;
+	RETURN();
+}
+
+void OPPROTO op_subl_T0_T1 (void)
+{
+	T0 -= T1;
+	RETURN();
+}
+
+void OPPROTO op_absl_T1_T1 (void)
+{
+	int32_t st = T1;
+
+	T1 = st < 0 ? -st : st;
+	RETURN();
+}
+
+void OPPROTO op_muls_T0_T1 (void)
+{
+	int64_t tmp, t0 ,t1;
+
+	/* cast into signed values to make GCC sign extend these babies.  */
+	t0 = (int32_t)T0;
+	t1 = (int32_t)T1;
+	
+	tmp = t0 * t1;
+	T0 = tmp & 0xffffffff;
+	env->pregs[REG_MOF] = tmp >> 32;
+	RETURN();
+}
+
+void OPPROTO op_mulu_T0_T1 (void)
+{
+	uint64_t tmp, t0 ,t1;
+	t0 = T0;
+	t1 = T1;
+	
+	tmp = t0 * t1;
+	T0 = tmp & 0xffffffff;
+	env->pregs[REG_MOF] = tmp >> 32;
+	RETURN();
+}
+
+void OPPROTO op_dstep_T0_T1 (void)
+{
+	T0 <<= 1;
+	if (T0 >= T1)
+		T0 -= T1;
+	RETURN();
+}
+
+void OPPROTO op_orl_T0_T1 (void)
+{
+	T0 |= T1;
+	RETURN();
+}
+
+void OPPROTO op_andl_T0_T1 (void)
+{
+	T0 &= T1;
+	RETURN();
+}
+
+void OPPROTO op_xorl_T0_T1 (void)
+{
+	T0 ^= T1;
+	RETURN();
+}
+
+void OPPROTO op_lsll_T0_T1 (void)
+{
+	int s = T1;
+	if (s > 31)
+		T0 = 0;
+	else
+		T0 <<= s;
+	RETURN();
+}
+
+void OPPROTO op_lsll_T0_im (void)
+{
+	T0 <<= PARAM1;
+	RETURN();
+}
+
+void OPPROTO op_lsrl_T0_T1 (void)
+{
+	int s = T1;
+	if (s > 31)
+		T0 = 0;
+	else
+		T0 >>= s;
+	RETURN();
+}
+
+/* Rely on GCC emitting an arithmetic shift for signed right shifts.  */
+void OPPROTO op_asrl_T0_T1 (void)
+{
+	int s = T1;
+	if (s > 31)
+		T0 = T0 & 0x80000000 ? -1 : 0;
+	else
+		T0 = (int32_t)T0 >> s;
+	RETURN();
+}
+
+void OPPROTO op_btst_T0_T1 (void)
+{
+	/* FIXME: clean this up.  */
+	
+	/* des ref:
+	   The N flag is set according to the selected bit in the dest reg.
+	   The Z flag is set if the selected bit and all bits to the right are
+	   zero. 
+	   The destination reg is not affected.*/
+	unsigned int fz, sbit, bset, mask, masked_t0;
+
+	sbit = T1 & 31;
+        bset = !!(T0 & (1 << sbit));
+	mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1;
+	masked_t0 = T0 & mask;	
+	fz = !(masked_t0 | bset);
+	/* Set the N and Z flags accordingly.  */
+	T0 = (bset << 3) | (fz << 2);
+	RETURN();
+}
+
+void OPPROTO op_bound_T0_T1 (void)
+{
+	if (T0 > T1)
+		T0 = T1;
+	RETURN();
+}
+
+void OPPROTO op_lz_T0_T1 (void)
+{
+	if (T1 == 0)
+		T0 = 32;
+	else
+		T0 = __builtin_clz(T1);
+	RETURN();
+}
+
+void OPPROTO op_negl_T0_T1 (void)
+{
+	T0 = -T1;
+	RETURN();
+}
+
+void OPPROTO op_negl_T1_T1 (void)
+{
+	T1 = -T1;
+	RETURN();
+}
+
+void OPPROTO op_not_T0_T0 (void)
+{
+	T0 = ~(T0);
+	RETURN();
+}
+void OPPROTO op_not_T1_T1 (void)
+{
+	T1 = ~(T1);
+	RETURN();
+}
+
+void OPPROTO op_swapw_T0_T0 (void)
+{
+	T0 = (T0 << 16) | ((T0 >> 16));
+	RETURN();
+}
+
+void OPPROTO op_swapb_T0_T0 (void)
+{
+	T0 = ((T0 << 8) & 0xff00ff00) | ((T0 >> 8) & 0x00ff00ff);
+	RETURN();
+}
+
+void OPPROTO op_swapr_T0_T0 (void)
+{
+	T0 = (((T0 << 7) & 0x80808080) |
+	      ((T0 << 5) & 0x40404040) |
+	      ((T0 << 3) & 0x20202020) |
+	      ((T0 << 1) & 0x10101010) |
+	      ((T0 >> 1) & 0x08080808) |
+	      ((T0 >> 3) & 0x04040404) |
+	      ((T0 >> 5) & 0x02020202) |
+	      ((T0 >> 7) & 0x01010101));
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_eq (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int z_set;
+
+	z_set = !!(flags & Z_FLAG);
+	T0 = z_set;
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_eq_fast (void) {
+	T0 = !(env->cc_result);
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_ne (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int z_set;
+
+	z_set = !!(flags & Z_FLAG);
+	T0 = !z_set;
+	RETURN();
+}
+void OPPROTO op_tst_cc_ne_fast (void) {
+	T0 = !!(env->cc_result);
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_cc (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int c_set;
+
+	c_set = !!(flags & C_FLAG);
+	T0 = !c_set;
+	RETURN();
+}
+void OPPROTO op_tst_cc_cs (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int c_set;
+
+	c_set = !!(flags & C_FLAG);
+	T0 = c_set;
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_vc (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int v_set;
+
+	v_set = !!(flags & V_FLAG);
+	T0 = !v_set;
+	RETURN();
+}
+void OPPROTO op_tst_cc_vs (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int v_set;
+
+	v_set = !!(flags & V_FLAG);
+	T0 = v_set;
+	RETURN();
+}
+void OPPROTO op_tst_cc_pl (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int n_set;
+
+	n_set = !!(flags & N_FLAG);
+	T0 = !n_set;
+	RETURN();
+}
+void OPPROTO op_tst_cc_pl_fast (void) {
+	T0 = ((int32_t)env->cc_result) >= 0;
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_mi (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int n_set;
+
+	n_set = !!(flags & N_FLAG);
+	T0 = n_set;
+	RETURN();
+}
+void OPPROTO op_tst_cc_mi_fast (void) {
+	T0 = ((int32_t)env->cc_result) < 0;
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_ls (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int c_set;
+	int z_set;
+
+	c_set = !!(flags & C_FLAG);
+	z_set = !!(flags & Z_FLAG);
+	T0 = c_set || z_set;
+	RETURN();
+}
+void OPPROTO op_tst_cc_hi (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int z_set;
+	int c_set;
+
+	z_set = !!(flags & Z_FLAG);
+	c_set = !!(flags & C_FLAG);
+	T0 = !c_set && !z_set;
+	RETURN();
+
+}
+
+void OPPROTO op_tst_cc_ge (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int n_set;
+	int v_set;
+
+	n_set = !!(flags & N_FLAG);
+	v_set = !!(flags & V_FLAG);
+	T0 = (n_set && v_set) || (!n_set && !v_set);
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_ge_fast (void) {
+	T0 = ((int32_t)env->cc_src < (int32_t)env->cc_dest);
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_lt (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int n_set;
+	int v_set;
+
+	n_set = !!(flags & N_FLAG);
+	v_set = !!(flags & V_FLAG);
+	T0 = (n_set && !v_set) || (!n_set && v_set);
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_gt (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int n_set;
+	int v_set;
+	int z_set;
+
+	n_set = !!(flags & N_FLAG);
+	v_set = !!(flags & V_FLAG);
+	z_set = !!(flags & Z_FLAG);
+	T0 = (n_set && v_set && !z_set) 
+		|| (!n_set && !v_set && !z_set);
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_le (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int n_set;
+	int v_set;
+	int z_set;
+
+	n_set = !!(flags & N_FLAG);
+	v_set = !!(flags & V_FLAG);
+	z_set = !!(flags & Z_FLAG);
+	T0 = z_set || (n_set && !v_set) || (!n_set && v_set);
+	RETURN();
+}
+
+void OPPROTO op_tst_cc_p (void) {
+	uint32_t flags = env->pregs[SR_CCS];
+	int p_set;
+
+	p_set = !!(flags & P_FLAG);
+	T0 = p_set;
+	RETURN();
+}
+
+/* Evaluate the if the branch should be taken or not. Needs to be done in
+   the original sequence. The acutal branch is rescheduled to right after the
+   delay-slot.  */
+void OPPROTO op_evaluate_bcc (void)
+{
+	env->btaken = T0;
+	RETURN();
+}
+
+/* this one is used on every alu op, optimize it!.  */
+void OPPROTO op_goto_if_not_x (void)
+{
+	if (env->pregs[SR_CCS] & X_FLAG)
+		GOTO_LABEL_PARAM(1);
+	RETURN();
+}
+
+void OPPROTO op_cc_jmp (void)
+{
+	if (env->btaken)
+		env->pc = PARAM1;
+	else
+		env->pc = PARAM2;
+	RETURN();
+}
+
+void OPPROTO op_cc_ngoto (void)
+{
+	if (!env->btaken)
+		GOTO_LABEL_PARAM(1);
+	RETURN();
+}
+
+void OPPROTO op_movl_btarget_T0 (void)
+{
+	env->btarget = T0;
+	RETURN();
+}
+
+void OPPROTO op_jmp (void)
+{
+	env->pc = env->btarget;
+	RETURN();
+}
+
+/* Load and store */
+#define MEMSUFFIX _raw
+#include "op_mem.c"
+#undef MEMSUFFIX
+#if !defined(CONFIG_USER_ONLY)
+#define MEMSUFFIX _user
+#include "op_mem.c"
+#undef MEMSUFFIX
+
+#define MEMSUFFIX _kernel
+#include "op_mem.c"
+#undef MEMSUFFIX
+#endif