target/cris: Reindent op_helper.c

Fix all of the coding style errors in this file at once.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 429 insertions, 450 deletions

diff --git a/target/cris/op_helper.c b/target/cris/op_helper.c
index 26a395b413..e4c6942922 100644
--- a/target/cris/op_helper.c
+++ b/target/cris/op_helper.c
@@ -48,9 +48,10 @@ void helper_raise_exception(CPUCRISState *env, uint32_t index)
 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]);
+    pid &= 0xff;
+    if (pid != (env->pregs[PR_PID] & 0xff)) {
+        cris_mmu_flush_pid(env, env->pregs[PR_PID]);
+    }
 #endif
 }
 
@@ -66,541 +67,519 @@ void helper_spc_write(CPUCRISState *env, uint32_t new_spc)
 }
 
 /* Used by the tlb decoder.  */
-#define EXTRACT_FIELD(src, start, end) \
-	    (((src) >> start) & ((1 << (end - start + 1)) - 1))
+#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];
+    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) {
+    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];
-	
+    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;
-	}
+    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];
+    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;
+    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;
+    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);
+    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);
+    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;
+    /* 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;
+    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);
+    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);
+    cris_ccs_rshift(env);
 
-	/* Set the P_FLAG only if the R_FLAG is not set.  */
-	if (!rflag)
-		env->pregs[PR_CCS] |= P_FLAG;
+    /* 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;
+    /* Always set the M flag.  */
+    env->pregs[PR_CCS] |= M_FLAG_V32;
 }
 
 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;
+    /* 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;
+    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 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 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 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 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 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;
+    uint32_t flags = 0;
 
-	if ((int32_t)res < 0)
-		flags |= N_FLAG;
-	else if (res == 0L)
-		flags |= Z_FLAG;
+    if ((int32_t)res < 0) {
+        flags |= N_FLAG;
+    } else if (res == 0L) {
+        flags |= Z_FLAG;
+    }
 
-        return evaluate_flags_writeback(env, flags, ccs);
+    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;
+    uint32_t flags = 0;
 
-	if ((int16_t)res < 0L)
-		flags |= N_FLAG;
-	else if (res == 0)
-		flags |= Z_FLAG;
+    if ((int16_t)res < 0L) {
+        flags |= N_FLAG;
+    } else if (res == 0) {
+        flags |= Z_FLAG;
+    }
 
-        return evaluate_flags_writeback(env, flags, ccs);
+    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.  */
+/*
+ * 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]);
+    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;
-	}
+    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;
+    }
 }