Move target-* CPU file into a target/ folder

We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 0 insertions, 639 deletions

diff --git a/target-cris/op_helper.c b/target-cris/op_helper.c
deleted file mode 100644
index 504303913c..0000000000
--- a/target-cris/op_helper.c
+++ /dev/null
@@ -1,639 +0,0 @@
-/*
- *  CRIS helper routines
- *
- *  Copyright (c) 2007 AXIS Communications
- *  Written by Edgar E. Iglesias
- *
- * 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "mmu.h"
-#include "exec/helper-proto.h"
-#include "qemu/host-utils.h"
-#include "exec/exec-all.h"
-#include "exec/cpu_ldst.h"
-
-//#define CRIS_OP_HELPER_DEBUG
-
-
-#ifdef CRIS_OP_HELPER_DEBUG
-#define D(x) x
-#define D_LOG(...) qemu_log(__VA_ARGS__)
-#else
-#define D(x)
-#define D_LOG(...) do { } while (0)
-#endif
-
-#if !defined(CONFIG_USER_ONLY)
-/* Try to fill the TLB and return an exception if error. If retaddr is
-   NULL, it means that the function was called in C code (i.e. not
-   from generated code or from helper.c) */
-void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
-              int mmu_idx, uintptr_t retaddr)
-{
-    CRISCPU *cpu = CRIS_CPU(cs);
-    CPUCRISState *env = &cpu->env;
-    int ret;
-
-    D_LOG("%s pc=%x tpc=%x ra=%p\n", __func__,
-          env->pc, env->pregs[PR_EDA], (void *)retaddr);
-    ret = cris_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
-    if (unlikely(ret)) {
-        if (retaddr) {
-            /* now we have a real cpu fault */
-            if (cpu_restore_state(cs, retaddr)) {
-		/* Evaluate flags after retranslation.  */
-                helper_top_evaluate_flags(env);
-            }
-        }
-        cpu_loop_exit(cs);
-    }
-}
-
-#endif
-
-void helper_raise_exception(CPUCRISState *env, uint32_t index)
-{
-    CPUState *cs = CPU(cris_env_get_cpu(env));
-
-    cs->exception_index = index;
-    cpu_loop_exit(cs);
-}
-
-void helper_tlb_flush_pid(CPUCRISState *env, uint32_t pid)
-{
-#if !defined(CONFIG_USER_ONLY)
-	pid &= 0xff;
-	if (pid != (env->pregs[PR_PID] & 0xff))
-		cris_mmu_flush_pid(env, env->pregs[PR_PID]);
-#endif
-}
-
-void helper_spc_write(CPUCRISState *env, uint32_t new_spc)
-{
-#if !defined(CONFIG_USER_ONLY)
-    CRISCPU *cpu = cris_env_get_cpu(env);
-    CPUState *cs = CPU(cpu);
-
-    tlb_flush_page(cs, env->pregs[PR_SPC]);
-    tlb_flush_page(cs, new_spc);
-#endif
-}
-
-/* Used by the tlb decoder.  */
-#define EXTRACT_FIELD(src, start, end) \
-	    (((src) >> start) & ((1 << (end - start + 1)) - 1))
-
-void helper_movl_sreg_reg(CPUCRISState *env, uint32_t sreg, uint32_t reg)
-{
-#if !defined(CONFIG_USER_ONLY)
-    CRISCPU *cpu = cris_env_get_cpu(env);
-#endif
-	uint32_t srs;
-	srs = env->pregs[PR_SRS];
-	srs &= 3;
-	env->sregs[srs][sreg] = env->regs[reg];
-
-#if !defined(CONFIG_USER_ONLY)
-	if (srs == 1 || srs == 2) {
-		if (sreg == 6) {
-			/* Writes to tlb-hi write to mm_cause as a side 
-			   effect.  */
-			env->sregs[SFR_RW_MM_TLB_HI] = env->regs[reg];
-			env->sregs[SFR_R_MM_CAUSE] = env->regs[reg];
-		}
-		else if (sreg == 5) {
-			uint32_t set;
-			uint32_t idx;
-			uint32_t lo, hi;
-			uint32_t vaddr;
-			int tlb_v;
-
-			idx = set = env->sregs[SFR_RW_MM_TLB_SEL];
-			set >>= 4;
-			set &= 3;
-
-			idx &= 15;
-			/* We've just made a write to tlb_lo.  */
-			lo = env->sregs[SFR_RW_MM_TLB_LO];
-			/* Writes are done via r_mm_cause.  */
-			hi = env->sregs[SFR_R_MM_CAUSE];
-
-			vaddr = EXTRACT_FIELD(env->tlbsets[srs-1][set][idx].hi,
-					      13, 31);
-			vaddr <<= TARGET_PAGE_BITS;
-			tlb_v = EXTRACT_FIELD(env->tlbsets[srs-1][set][idx].lo,
-					    3, 3);
-			env->tlbsets[srs - 1][set][idx].lo = lo;
-			env->tlbsets[srs - 1][set][idx].hi = hi;
-
-			D_LOG("tlb flush vaddr=%x v=%d pc=%x\n", 
-				  vaddr, tlb_v, env->pc);
-			if (tlb_v) {
-                tlb_flush_page(CPU(cpu), vaddr);
-			}
-		}
-	}
-#endif
-}
-
-void helper_movl_reg_sreg(CPUCRISState *env, uint32_t reg, uint32_t sreg)
-{
-	uint32_t srs;
-	env->pregs[PR_SRS] &= 3;
-	srs = env->pregs[PR_SRS];
-	
-#if !defined(CONFIG_USER_ONLY)
-	if (srs == 1 || srs == 2)
-	{
-		uint32_t set;
-		uint32_t idx;
-		uint32_t lo, hi;
-
-		idx = set = env->sregs[SFR_RW_MM_TLB_SEL];
-		set >>= 4;
-		set &= 3;
-		idx &= 15;
-
-		/* Update the mirror regs.  */
-		hi = env->tlbsets[srs - 1][set][idx].hi;
-		lo = env->tlbsets[srs - 1][set][idx].lo;
-		env->sregs[SFR_RW_MM_TLB_HI] = hi;
-		env->sregs[SFR_RW_MM_TLB_LO] = lo;
-	}
-#endif
-	env->regs[reg] = env->sregs[srs][sreg];
-}
-
-static void cris_ccs_rshift(CPUCRISState *env)
-{
-	uint32_t ccs;
-
-	/* Apply the ccs shift.  */
-	ccs = env->pregs[PR_CCS];
-	ccs = (ccs & 0xc0000000) | ((ccs & 0x0fffffff) >> 10);
-	if (ccs & U_FLAG)
-	{
-		/* Enter user mode.  */
-		env->ksp = env->regs[R_SP];
-		env->regs[R_SP] = env->pregs[PR_USP];
-	}
-
-	env->pregs[PR_CCS] = ccs;
-}
-
-void helper_rfe(CPUCRISState *env)
-{
-	int rflag = env->pregs[PR_CCS] & R_FLAG;
-
-	D_LOG("rfe: erp=%x pid=%x ccs=%x btarget=%x\n", 
-		 env->pregs[PR_ERP], env->pregs[PR_PID],
-		 env->pregs[PR_CCS],
-		 env->btarget);
-
-	cris_ccs_rshift(env);
-
-	/* RFE sets the P_FLAG only if the R_FLAG is not set.  */
-	if (!rflag)
-		env->pregs[PR_CCS] |= P_FLAG;
-}
-
-void helper_rfn(CPUCRISState *env)
-{
-	int rflag = env->pregs[PR_CCS] & R_FLAG;
-
-	D_LOG("rfn: erp=%x pid=%x ccs=%x btarget=%x\n", 
-		 env->pregs[PR_ERP], env->pregs[PR_PID],
-		 env->pregs[PR_CCS],
-		 env->btarget);
-
-	cris_ccs_rshift(env);
-
-	/* Set the P_FLAG only if the R_FLAG is not set.  */
-	if (!rflag)
-		env->pregs[PR_CCS] |= P_FLAG;
-
-	/* Always set the M flag.  */
-	env->pregs[PR_CCS] |= M_FLAG_V32;
-}
-
-uint32_t helper_lz(uint32_t t0)
-{
-	return clz32(t0);
-}
-
-uint32_t helper_btst(CPUCRISState *env, uint32_t t0, uint32_t t1, uint32_t ccs)
-{
-	/* 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 X flag is cleared.
-	   Other flags are left untouched.
-	   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);
-
-	/* Clear the X, N and Z flags.  */
-	ccs = ccs & ~(X_FLAG | N_FLAG | Z_FLAG);
-	if (env->pregs[PR_VR] < 32)
-		ccs &= ~(V_FLAG | C_FLAG);
-	/* Set the N and Z flags accordingly.  */
-	ccs |= (bset << 3) | (fz << 2);
-	return ccs;
-}
-
-static inline uint32_t evaluate_flags_writeback(CPUCRISState *env,
-                                                uint32_t flags, uint32_t ccs)
-{
-	unsigned int x, z, mask;
-
-	/* Extended arithmetics, leave the z flag alone.  */
-	x = env->cc_x;
-	mask = env->cc_mask | X_FLAG;
-        if (x) {
-		z = flags & Z_FLAG;
-		mask = mask & ~z;
-	}
-	flags &= mask;
-
-	/* all insn clear the x-flag except setf or clrf.  */
-	ccs &= ~mask;
-	ccs |= flags;
-	return ccs;
-}
-
-uint32_t helper_evaluate_flags_muls(CPUCRISState *env,
-                                    uint32_t ccs, uint32_t res, uint32_t mof)
-{
-	uint32_t flags = 0;
-	int64_t tmp;
-	int dneg;
-
-	dneg = ((int32_t)res) < 0;
-
-	tmp = mof;
-	tmp <<= 32;
-	tmp |= res;
-	if (tmp == 0)
-		flags |= Z_FLAG;
-	else if (tmp < 0)
-		flags |= N_FLAG;
-	if ((dneg && mof != -1)
-	    || (!dneg && mof != 0))
-		flags |= V_FLAG;
-        return evaluate_flags_writeback(env, flags, ccs);
-}
-
-uint32_t helper_evaluate_flags_mulu(CPUCRISState *env,
-                                    uint32_t ccs, uint32_t res, uint32_t mof)
-{
-	uint32_t flags = 0;
-	uint64_t tmp;
-
-	tmp = mof;
-	tmp <<= 32;
-	tmp |= res;
-	if (tmp == 0)
-		flags |= Z_FLAG;
-	else if (tmp >> 63)
-		flags |= N_FLAG;
-	if (mof)
-		flags |= V_FLAG;
-
-        return evaluate_flags_writeback(env, flags, ccs);
-}
-
-uint32_t helper_evaluate_flags_mcp(CPUCRISState *env, uint32_t ccs,
-				   uint32_t src, uint32_t dst, uint32_t res)
-{
-	uint32_t flags = 0;
-
-	src = src & 0x80000000;
-	dst = dst & 0x80000000;
-
-	if ((res & 0x80000000L) != 0L)
-	{
-		flags |= N_FLAG;
-		if (!src && !dst)
-			flags |= V_FLAG;
-		else if (src & dst)
-			flags |= R_FLAG;
-	}
-	else
-	{
-		if (res == 0L)
-			flags |= Z_FLAG;
-		if (src & dst) 
-			flags |= V_FLAG;
-		if (dst | src) 
-			flags |= R_FLAG;
-	}
-
-        return evaluate_flags_writeback(env, flags, ccs);
-}
-
-uint32_t helper_evaluate_flags_alu_4(CPUCRISState *env, uint32_t ccs,
-				     uint32_t src, uint32_t dst, uint32_t res)
-{
-	uint32_t flags = 0;
-
-	src = src & 0x80000000;
-	dst = dst & 0x80000000;
-
-	if ((res & 0x80000000L) != 0L)
-	{
-		flags |= N_FLAG;
-		if (!src && !dst)
-			flags |= V_FLAG;
-		else if (src & dst)
-			flags |= C_FLAG;
-	}
-	else
-	{
-		if (res == 0L)
-			flags |= Z_FLAG;
-		if (src & dst) 
-			flags |= V_FLAG;
-		if (dst | src) 
-			flags |= C_FLAG;
-	}
-
-        return evaluate_flags_writeback(env, flags, ccs);
-}
-
-uint32_t helper_evaluate_flags_sub_4(CPUCRISState *env, uint32_t ccs,
-				     uint32_t src, uint32_t dst, uint32_t res)
-{
-	uint32_t flags = 0;
-
-	src = (~src) & 0x80000000;
-	dst = dst & 0x80000000;
-
-	if ((res & 0x80000000L) != 0L)
-	{
-		flags |= N_FLAG;
-		if (!src && !dst)
-			flags |= V_FLAG;
-		else if (src & dst)
-			flags |= C_FLAG;
-	}
-	else
-	{
-		if (res == 0L)
-			flags |= Z_FLAG;
-		if (src & dst) 
-			flags |= V_FLAG;
-		if (dst | src) 
-			flags |= C_FLAG;
-	}
-
-	flags ^= C_FLAG;
-        return evaluate_flags_writeback(env, flags, ccs);
-}
-
-uint32_t helper_evaluate_flags_move_4(CPUCRISState *env,
-                                      uint32_t ccs, uint32_t res)
-{
-	uint32_t flags = 0;
-
-	if ((int32_t)res < 0)
-		flags |= N_FLAG;
-	else if (res == 0L)
-		flags |= Z_FLAG;
-
-        return evaluate_flags_writeback(env, flags, ccs);
-}
-uint32_t helper_evaluate_flags_move_2(CPUCRISState *env,
-                                      uint32_t ccs, uint32_t res)
-{
-	uint32_t flags = 0;
-
-	if ((int16_t)res < 0L)
-		flags |= N_FLAG;
-	else if (res == 0)
-		flags |= Z_FLAG;
-
-        return evaluate_flags_writeback(env, flags, ccs);
-}
-
-/* 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 helper_evaluate_flags(CPUCRISState *env)
-{
-	uint32_t src, dst, res;
-	uint32_t flags = 0;
-
-	src = env->cc_src;
-	dst = env->cc_dest;
-	res = env->cc_result;
-
-	if (env->cc_op == CC_OP_SUB || env->cc_op == CC_OP_CMP)
-		src = ~src;
-
-	/* 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;
-
-        env->pregs[PR_CCS] = evaluate_flags_writeback(env, flags,
-                                                      env->pregs[PR_CCS]);
-}
-
-void helper_top_evaluate_flags(CPUCRISState *env)
-{
-	switch (env->cc_op)
-	{
-		case CC_OP_MCP:
-                        env->pregs[PR_CCS] = helper_evaluate_flags_mcp(env,
-					env->pregs[PR_CCS], env->cc_src,
-					env->cc_dest, env->cc_result);
-			break;
-		case CC_OP_MULS:
-                        env->pregs[PR_CCS] = helper_evaluate_flags_muls(env,
-					env->pregs[PR_CCS], env->cc_result,
-					env->pregs[PR_MOF]);
-			break;
-		case CC_OP_MULU:
-                        env->pregs[PR_CCS] = helper_evaluate_flags_mulu(env,
-					env->pregs[PR_CCS], env->cc_result,
-					env->pregs[PR_MOF]);
-			break;
-		case CC_OP_MOVE:
-		case CC_OP_AND:
-		case CC_OP_OR:
-		case CC_OP_XOR:
-		case CC_OP_ASR:
-		case CC_OP_LSR:
-		case CC_OP_LSL:
-		switch (env->cc_size)
-		{
-			case 4:
-				env->pregs[PR_CCS] =
-                                        helper_evaluate_flags_move_4(env,
-							env->pregs[PR_CCS],
-							env->cc_result);
-				break;
-			case 2:
-				env->pregs[PR_CCS] =
-                                        helper_evaluate_flags_move_2(env,
-							env->pregs[PR_CCS],
-							env->cc_result);
-				break;
-			default:
-                                helper_evaluate_flags(env);
-				break;
-		}
-		break;
-		case CC_OP_FLAGS:
-			/* live.  */
-			break;
-		case CC_OP_SUB:
-		case CC_OP_CMP:
-			if (env->cc_size == 4)
-				env->pregs[PR_CCS] =
-                                        helper_evaluate_flags_sub_4(env,
-						env->pregs[PR_CCS],
-						env->cc_src, env->cc_dest,
-						env->cc_result);
-			else
-                                helper_evaluate_flags(env);
-			break;
-		default:
-		{
-			switch (env->cc_size)
-			{
-			case 4:
-				env->pregs[PR_CCS] =
-                                        helper_evaluate_flags_alu_4(env,
-						env->pregs[PR_CCS],
-						env->cc_src, env->cc_dest,
-						env->cc_result);
-				break;
-			default:
-                                helper_evaluate_flags(env);
-				break;
-			}
-		}
-		break;
-	}
-}