motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 01:33:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/cris: Reindent op_helper.c

Browse source 
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>
This commit is contained in:
Richard Henderson 2019-05-06 21:57:43 -07:00
parent 81ff3de728
commit ac4df09f91
1 changed files with 398 additions and 419 deletions
Download patch file Download diff file Expand all files Collapse all files

817
target/cris/op_helper.c
View file

@ -48,9 +48,10 @@ void helper_raise_exception(CPUCRISState *env, uint32_t index)
void helper_tlb_flush_pid(CPUCRISState *env, uint32_t pid) void helper_tlb_flush_pid(CPUCRISState *env, uint32_t pid)
{ {
#if !defined(CONFIG_USER_ONLY) #if !defined(CONFIG_USER_ONLY)
pid &= 0xff; pid &= 0xff;
if (pid != (env->pregs[PR_PID] & 0xff)) if (pid != (env->pregs[PR_PID] & 0xff)) {
cris_mmu_flush_pid(env, env->pregs[PR_PID]); cris_mmu_flush_pid(env, env->pregs[PR_PID]);
}
#endif #endif
} }
@ -66,541 +67,519 @@ void helper_spc_write(CPUCRISState *env, uint32_t new_spc)
} }
/* Used by the tlb decoder. */ /* Used by the tlb decoder. */
#define EXTRACT_FIELD(src, start, end) \ #define EXTRACT_FIELD(src, start, end) \
(((src) >> start) & ((1 << (end - start + 1)) - 1)) (((src) >> start) & ((1 << (end - start + 1)) - 1))
void helper_movl_sreg_reg(CPUCRISState *env, uint32_t sreg, uint32_t reg) void helper_movl_sreg_reg(CPUCRISState *env, uint32_t sreg, uint32_t reg)
{ {
#if !defined(CONFIG_USER_ONLY) #if !defined(CONFIG_USER_ONLY)
CRISCPU *cpu = cris_env_get_cpu(env); CRISCPU *cpu = cris_env_get_cpu(env);
#endif #endif
uint32_t srs; uint32_t srs;
srs = env->pregs[PR_SRS]; srs = env->pregs[PR_SRS];
srs &= 3; srs &= 3;
env->sregs[srs][sreg] = env->regs[reg]; env->sregs[srs][sreg] = env->regs[reg];
#if !defined(CONFIG_USER_ONLY) #if !defined(CONFIG_USER_ONLY)
if (srs == 1 || srs == 2) { if (srs == 1 || srs == 2) {
if (sreg == 6) { if (sreg == 6) {
/* Writes to tlb-hi write to mm_cause as a side /* Writes to tlb-hi write to mm_cause as a side effect. */
effect. */ env->sregs[SFR_RW_MM_TLB_HI] = env->regs[reg];
env->sregs[SFR_RW_MM_TLB_HI] = env->regs[reg]; env->sregs[SFR_R_MM_CAUSE] = env->regs[reg];
env->sregs[SFR_R_MM_CAUSE] = env->regs[reg]; } else if (sreg == 5) {
} uint32_t set;
else if (sreg == 5) { uint32_t idx;
uint32_t set; uint32_t lo, hi;
uint32_t idx; uint32_t vaddr;
uint32_t lo, hi; int tlb_v;
uint32_t vaddr;
int tlb_v;
idx = set = env->sregs[SFR_RW_MM_TLB_SEL]; idx = set = env->sregs[SFR_RW_MM_TLB_SEL];
set >>= 4; set >>= 4;
set &= 3; set &= 3;
idx &= 15; idx &= 15;
/* We've just made a write to tlb_lo. */ /* We've just made a write to tlb_lo. */
lo = env->sregs[SFR_RW_MM_TLB_LO]; lo = env->sregs[SFR_RW_MM_TLB_LO];
/* Writes are done via r_mm_cause. */ /* Writes are done via r_mm_cause. */
hi = env->sregs[SFR_R_MM_CAUSE]; hi = env->sregs[SFR_R_MM_CAUSE];
vaddr = EXTRACT_FIELD(env->tlbsets[srs-1][set][idx].hi, vaddr = EXTRACT_FIELD(env->tlbsets[srs - 1][set][idx].hi, 13, 31);
13, 31); vaddr <<= TARGET_PAGE_BITS;
vaddr <<= TARGET_PAGE_BITS; tlb_v = EXTRACT_FIELD(env->tlbsets[srs - 1][set][idx].lo, 3, 3);
tlb_v = EXTRACT_FIELD(env->tlbsets[srs-1][set][idx].lo, env->tlbsets[srs - 1][set][idx].lo = lo;
3, 3); env->tlbsets[srs - 1][set][idx].hi = hi;
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", D_LOG("tlb flush vaddr=%x v=%d pc=%x\n",
vaddr, tlb_v, env->pc); vaddr, tlb_v, env->pc);
if (tlb_v) { if (tlb_v) {
tlb_flush_page(CPU(cpu), vaddr); tlb_flush_page(CPU(cpu), vaddr);
} }
} }
} }
#endif #endif
} }
void helper_movl_reg_sreg(CPUCRISState *env, uint32_t reg, uint32_t sreg) void helper_movl_reg_sreg(CPUCRISState *env, uint32_t reg, uint32_t sreg)
{ {
uint32_t srs; uint32_t srs;
env->pregs[PR_SRS] &= 3; env->pregs[PR_SRS] &= 3;
srs = env->pregs[PR_SRS]; srs = env->pregs[PR_SRS];
#if !defined(CONFIG_USER_ONLY) #if !defined(CONFIG_USER_ONLY)
if (srs == 1 || srs == 2) if (srs == 1 || srs == 2) {
{ uint32_t set;
uint32_t set; uint32_t idx;
uint32_t idx; uint32_t lo, hi;
uint32_t lo, hi;
idx = set = env->sregs[SFR_RW_MM_TLB_SEL]; idx = set = env->sregs[SFR_RW_MM_TLB_SEL];
set >>= 4; set >>= 4;
set &= 3; set &= 3;
idx &= 15; idx &= 15;
/* Update the mirror regs. */ /* Update the mirror regs. */
hi = env->tlbsets[srs - 1][set][idx].hi; hi = env->tlbsets[srs - 1][set][idx].hi;
lo = env->tlbsets[srs - 1][set][idx].lo; lo = env->tlbsets[srs - 1][set][idx].lo;
env->sregs[SFR_RW_MM_TLB_HI] = hi; env->sregs[SFR_RW_MM_TLB_HI] = hi;
env->sregs[SFR_RW_MM_TLB_LO] = lo; env->sregs[SFR_RW_MM_TLB_LO] = lo;
} }
#endif #endif
env->regs[reg] = env->sregs[srs][sreg]; env->regs[reg] = env->sregs[srs][sreg];
} }
static void cris_ccs_rshift(CPUCRISState *env) static void cris_ccs_rshift(CPUCRISState *env)
{ {
uint32_t ccs; uint32_t ccs;
/* Apply the ccs shift. */ /* Apply the ccs shift. */
ccs = env->pregs[PR_CCS]; ccs = env->pregs[PR_CCS];
ccs = (ccs & 0xc0000000) | ((ccs & 0x0fffffff) >> 10); ccs = (ccs & 0xc0000000) | ((ccs & 0x0fffffff) >> 10);
if (ccs & U_FLAG) if (ccs & U_FLAG) {
{ /* Enter user mode. */
/* Enter user mode. */ env->ksp = env->regs[R_SP];
env->ksp = env->regs[R_SP]; env->regs[R_SP] = env->pregs[PR_USP];
env->regs[R_SP] = env->pregs[PR_USP]; }
}
env->pregs[PR_CCS] = ccs; env->pregs[PR_CCS] = ccs;
} }
void helper_rfe(CPUCRISState *env) 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", D_LOG("rfe: erp=%x pid=%x ccs=%x btarget=%x\n",
env->pregs[PR_ERP], env->pregs[PR_PID], env->pregs[PR_ERP], env->pregs[PR_PID],
env->pregs[PR_CCS], env->pregs[PR_CCS],
env->btarget); env->btarget);
cris_ccs_rshift(env); cris_ccs_rshift(env);
/* RFE sets the P_FLAG only if the R_FLAG is not set. */ /* RFE sets the P_FLAG only if the R_FLAG is not set. */
if (!rflag) if (!rflag) {
env->pregs[PR_CCS] |= P_FLAG; env->pregs[PR_CCS] |= P_FLAG;
}
} }
void helper_rfn(CPUCRISState *env) 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", D_LOG("rfn: erp=%x pid=%x ccs=%x btarget=%x\n",
env->pregs[PR_ERP], env->pregs[PR_PID], env->pregs[PR_ERP], env->pregs[PR_PID],
env->pregs[PR_CCS], env->pregs[PR_CCS],
env->btarget); env->btarget);
cris_ccs_rshift(env); cris_ccs_rshift(env);
/* Set the P_FLAG only if the R_FLAG is not set. */ /* Set the P_FLAG only if the R_FLAG is not set. */
if (!rflag) if (!rflag) {
env->pregs[PR_CCS] |= P_FLAG; env->pregs[PR_CCS] |= P_FLAG;
}
/* Always set the M flag. */ /* Always set the M flag. */
env->pregs[PR_CCS] |= M_FLAG_V32; env->pregs[PR_CCS] |= M_FLAG_V32;
} }
uint32_t helper_btst(CPUCRISState *env, uint32_t t0, uint32_t t1, uint32_t ccs) uint32_t helper_btst(CPUCRISState *env, uint32_t t0, uint32_t t1, uint32_t ccs)
{ {
/* FIXME: clean this up. */ /* FIXME: clean this up. */
/* des ref: /*
The N flag is set according to the selected bit in the dest reg. * des ref:
The Z flag is set if the selected bit and all bits to the right are * The N flag is set according to the selected bit in the dest reg.
zero. * The Z flag is set if the selected bit and all bits to the right are
The X flag is cleared. * zero.
Other flags are left untouched. * The X flag is cleared.
The destination reg is not affected.*/ * Other flags are left untouched.
unsigned int fz, sbit, bset, mask, masked_t0; * The destination reg is not affected.
*/
unsigned int fz, sbit, bset, mask, masked_t0;
sbit = t1 & 31; sbit = t1 & 31;
bset = !!(t0 & (1 << sbit)); bset = !!(t0 & (1 << sbit));
mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1; mask = sbit == 31 ? -1 : (1 << (sbit + 1)) - 1;
masked_t0 = t0 & mask; masked_t0 = t0 & mask;
fz = !(masked_t0 | bset); fz = !(masked_t0 | bset);
/* Clear the X, N and Z flags. */ /* Clear the X, N and Z flags. */
ccs = ccs & ~(X_FLAG | N_FLAG | Z_FLAG); ccs = ccs & ~(X_FLAG | N_FLAG | Z_FLAG);
if (env->pregs[PR_VR] < 32) if (env->pregs[PR_VR] < 32) {
ccs &= ~(V_FLAG | C_FLAG); ccs &= ~(V_FLAG | C_FLAG);
/* Set the N and Z flags accordingly. */ }
ccs |= (bset << 3) | (fz << 2); /* Set the N and Z flags accordingly. */
return ccs; ccs |= (bset << 3) | (fz << 2);
return ccs;
} }
static inline uint32_t evaluate_flags_writeback(CPUCRISState *env, static inline uint32_t evaluate_flags_writeback(CPUCRISState *env,
uint32_t flags, uint32_t ccs) uint32_t flags, uint32_t ccs)
{ {
unsigned int x, z, mask; unsigned int x, z, mask;
/* Extended arithmetics, leave the z flag alone. */ /* Extended arithmetics, leave the z flag alone. */
x = env->cc_x; x = env->cc_x;
mask = env->cc_mask | X_FLAG; mask = env->cc_mask | X_FLAG;
if (x) { if (x) {
z = flags & Z_FLAG; z = flags & Z_FLAG;
mask = mask & ~z; mask = mask & ~z;
} }
flags &= mask; flags &= mask;
/* all insn clear the x-flag except setf or clrf. */ /* all insn clear the x-flag except setf or clrf. */
ccs &= ~mask; ccs &= ~mask;
ccs |= flags; ccs |= flags;
return ccs; return ccs;
} }
uint32_t helper_evaluate_flags_muls(CPUCRISState *env, uint32_t helper_evaluate_flags_muls(CPUCRISState *env,
uint32_t ccs, uint32_t res, uint32_t mof) uint32_t ccs, uint32_t res, uint32_t mof)
{ {
uint32_t flags = 0; uint32_t flags = 0;
int64_t tmp; int64_t tmp;
int dneg; int dneg;
dneg = ((int32_t)res) < 0; dneg = ((int32_t)res) < 0;
tmp = mof; tmp = mof;
tmp <<= 32; tmp <<= 32;
tmp |= res; tmp |= res;
if (tmp == 0) if (tmp == 0) {
flags |= Z_FLAG; flags |= Z_FLAG;
else if (tmp < 0) } else if (tmp < 0) {
flags |= N_FLAG; flags |= N_FLAG;
if ((dneg && mof != -1) }
|| (!dneg && mof != 0)) if ((dneg && mof != -1) || (!dneg && mof != 0)) {
flags |= V_FLAG; flags |= V_FLAG;
return evaluate_flags_writeback(env, flags, ccs); }
return evaluate_flags_writeback(env, flags, ccs);
} }
uint32_t helper_evaluate_flags_mulu(CPUCRISState *env, uint32_t helper_evaluate_flags_mulu(CPUCRISState *env,
uint32_t ccs, uint32_t res, uint32_t mof) uint32_t ccs, uint32_t res, uint32_t mof)
{ {
uint32_t flags = 0; uint32_t flags = 0;
uint64_t tmp; uint64_t tmp;
tmp = mof; tmp = mof;
tmp <<= 32; tmp <<= 32;
tmp |= res; tmp |= res;
if (tmp == 0) if (tmp == 0) {
flags |= Z_FLAG; flags |= Z_FLAG;
else if (tmp >> 63) } else if (tmp >> 63) {
flags |= N_FLAG; flags |= N_FLAG;
if (mof) }
flags |= V_FLAG; if (mof) {
flags |= V_FLAG;
}
return evaluate_flags_writeback(env, flags, ccs); return evaluate_flags_writeback(env, flags, ccs);
} }
uint32_t helper_evaluate_flags_mcp(CPUCRISState *env, uint32_t ccs, uint32_t helper_evaluate_flags_mcp(CPUCRISState *env, uint32_t ccs,
uint32_t src, uint32_t dst, uint32_t res) uint32_t src, uint32_t dst, uint32_t res)
{ {
uint32_t flags = 0; uint32_t flags = 0;
src = src & 0x80000000; src = src & 0x80000000;
dst = dst & 0x80000000; dst = dst & 0x80000000;
if ((res & 0x80000000L) != 0L) if ((res & 0x80000000L) != 0L) {
{ flags |= N_FLAG;
flags |= N_FLAG; if (!src && !dst) {
if (!src && !dst) flags |= V_FLAG;
flags |= V_FLAG; } else if (src & dst) {
else if (src & dst) flags |= R_FLAG;
flags |= R_FLAG; }
} } else {
else if (res == 0L) {
{ flags |= Z_FLAG;
if (res == 0L) }
flags |= Z_FLAG; if (src & dst) {
if (src & dst) flags |= V_FLAG;
flags |= V_FLAG; }
if (dst | src) if (dst | src) {
flags |= R_FLAG; flags |= R_FLAG;
} }
}
return evaluate_flags_writeback(env, flags, ccs); return evaluate_flags_writeback(env, flags, ccs);
} }
uint32_t helper_evaluate_flags_alu_4(CPUCRISState *env, uint32_t ccs, uint32_t helper_evaluate_flags_alu_4(CPUCRISState *env, uint32_t ccs,
uint32_t src, uint32_t dst, uint32_t res) uint32_t src, uint32_t dst, uint32_t res)
{ {
uint32_t flags = 0; uint32_t flags = 0;
src = src & 0x80000000; src = src & 0x80000000;
dst = dst & 0x80000000; dst = dst & 0x80000000;
if ((res & 0x80000000L) != 0L) if ((res & 0x80000000L) != 0L) {
{ flags |= N_FLAG;
flags |= N_FLAG; if (!src && !dst) {
if (!src && !dst) flags |= V_FLAG;
flags |= V_FLAG; } else if (src & dst) {
else if (src & dst) flags |= C_FLAG;
flags |= C_FLAG; }
} } else {
else if (res == 0L) {
{ flags |= Z_FLAG;
if (res == 0L) }
flags |= Z_FLAG; if (src & dst) {
if (src & dst) flags |= V_FLAG;
flags |= V_FLAG; }
if (dst | src) if (dst | src) {
flags |= C_FLAG; flags |= C_FLAG;
} }
}
return evaluate_flags_writeback(env, flags, ccs); return evaluate_flags_writeback(env, flags, ccs);
} }
uint32_t helper_evaluate_flags_sub_4(CPUCRISState *env, uint32_t ccs, uint32_t helper_evaluate_flags_sub_4(CPUCRISState *env, uint32_t ccs,
uint32_t src, uint32_t dst, uint32_t res) uint32_t src, uint32_t dst, uint32_t res)
{ {
uint32_t flags = 0; uint32_t flags = 0;
src = (~src) & 0x80000000; src = (~src) & 0x80000000;
dst = dst & 0x80000000; dst = dst & 0x80000000;
if ((res & 0x80000000L) != 0L) if ((res & 0x80000000L) != 0L) {
{ flags |= N_FLAG;
flags |= N_FLAG; if (!src && !dst) {
if (!src && !dst) flags |= V_FLAG;
flags |= V_FLAG; } else if (src & dst) {
else if (src & dst) flags |= C_FLAG;
flags |= C_FLAG; }
} } else {
else if (res == 0L) {
{ flags |= Z_FLAG;
if (res == 0L) }
flags |= Z_FLAG; if (src & dst) {
if (src & dst) flags |= V_FLAG;
flags |= V_FLAG; }
if (dst | src) if (dst | src) {
flags |= C_FLAG; flags |= C_FLAG;
} }
}
flags ^= C_FLAG; flags ^= C_FLAG;
return evaluate_flags_writeback(env, flags, ccs); return evaluate_flags_writeback(env, flags, ccs);
} }
uint32_t helper_evaluate_flags_move_4(CPUCRISState *env, uint32_t helper_evaluate_flags_move_4(CPUCRISState *env,
uint32_t ccs, uint32_t res) uint32_t ccs, uint32_t res)
{ {
uint32_t flags = 0; uint32_t flags = 0;
if ((int32_t)res < 0) if ((int32_t)res < 0) {
flags |= N_FLAG; flags |= N_FLAG;
else if (res == 0L) } else if (res == 0L) {
flags |= Z_FLAG; 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 helper_evaluate_flags_move_2(CPUCRISState *env,
uint32_t ccs, uint32_t res) uint32_t ccs, uint32_t res)
{ {
uint32_t flags = 0; uint32_t flags = 0;
if ((int16_t)res < 0L) if ((int16_t)res < 0L) {
flags |= N_FLAG; flags |= N_FLAG;
else if (res == 0) } else if (res == 0) {
flags |= Z_FLAG; 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) void helper_evaluate_flags(CPUCRISState *env)
{ {
uint32_t src, dst, res; uint32_t src, dst, res;
uint32_t flags = 0; uint32_t flags = 0;
src = env->cc_src; src = env->cc_src;
dst = env->cc_dest; dst = env->cc_dest;
res = env->cc_result; res = env->cc_result;
if (env->cc_op == CC_OP_SUB || env->cc_op == CC_OP_CMP) if (env->cc_op == CC_OP_SUB || env->cc_op == CC_OP_CMP) {
src = ~src; src = ~src;
}
/* Now, evaluate the flags. This stuff is based on /*
Per Zander's CRISv10 simulator. */ * Now, evaluate the flags. This stuff is based on
switch (env->cc_size) * Per Zander's CRISv10 simulator.
{ */
case 1: switch (env->cc_size) {
if ((res & 0x80L) != 0L) case 1:
{ if ((res & 0x80L) != 0L) {
flags |= N_FLAG; flags |= N_FLAG;
if (((src & 0x80L) == 0L) if (((src & 0x80L) == 0L) && ((dst & 0x80L) == 0L)) {
&& ((dst & 0x80L) == 0L)) flags |= V_FLAG;
{ } else if (((src & 0x80L) != 0L) && ((dst & 0x80L) != 0L)) {
flags |= V_FLAG; flags |= C_FLAG;
} }
else if (((src & 0x80L) != 0L) } else {
&& ((dst & 0x80L) != 0L)) if ((res & 0xFFL) == 0L) {
{ flags |= Z_FLAG;
flags |= C_FLAG; }
} if (((src & 0x80L) != 0L) && ((dst & 0x80L) != 0L)) {
} flags |= V_FLAG;
else }
{ if ((dst & 0x80L) != 0L || (src & 0x80L) != 0L) {
if ((res & 0xFFL) == 0L) flags |= C_FLAG;
{ }
flags |= Z_FLAG; }
} break;
if (((src & 0x80L) != 0L) case 2:
&& ((dst & 0x80L) != 0L)) if ((res & 0x8000L) != 0L) {
{ flags |= N_FLAG;
flags |= V_FLAG; if (((src & 0x8000L) == 0L) && ((dst & 0x8000L) == 0L)) {
} flags |= V_FLAG;
if ((dst & 0x80L) != 0L } else if (((src & 0x8000L) != 0L) && ((dst & 0x8000L) != 0L)) {
|| (src & 0x80L) != 0L) flags |= C_FLAG;
{ }
flags |= C_FLAG; } else {
} if ((res & 0xFFFFL) == 0L) {
} flags |= Z_FLAG;
break; }
case 2: if (((src & 0x8000L) != 0L) && ((dst & 0x8000L) != 0L)) {
if ((res & 0x8000L) != 0L) flags |= V_FLAG;
{ }
flags |= N_FLAG; if ((dst & 0x8000L) != 0L || (src & 0x8000L) != 0L) {
if (((src & 0x8000L) == 0L) flags |= C_FLAG;
&& ((dst & 0x8000L) == 0L)) }
{ }
flags |= V_FLAG; break;
} case 4:
else if (((src & 0x8000L) != 0L) if ((res & 0x80000000L) != 0L) {
&& ((dst & 0x8000L) != 0L)) flags |= N_FLAG;
{ if (((src & 0x80000000L) == 0L) && ((dst & 0x80000000L) == 0L)) {
flags |= C_FLAG; flags |= V_FLAG;
} } else if (((src & 0x80000000L) != 0L) &&
} ((dst & 0x80000000L) != 0L)) {
else flags |= C_FLAG;
{ }
if ((res & 0xFFFFL) == 0L) } else {
{ if (res == 0L) {
flags |= Z_FLAG; flags |= Z_FLAG;
} }
if (((src & 0x8000L) != 0L) if (((src & 0x80000000L) != 0L) && ((dst & 0x80000000L) != 0L)) {
&& ((dst & 0x8000L) != 0L)) flags |= V_FLAG;
{ }
flags |= V_FLAG; if ((dst & 0x80000000L) != 0L || (src & 0x80000000L) != 0L) {
} flags |= C_FLAG;
if ((dst & 0x8000L) != 0L }
|| (src & 0x8000L) != 0L) }
{ break;
flags |= C_FLAG; default:
} break;
} }
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) if (env->cc_op == CC_OP_SUB || env->cc_op == CC_OP_CMP) {
flags ^= C_FLAG; flags ^= C_FLAG;
}
env->pregs[PR_CCS] = evaluate_flags_writeback(env, flags, env->pregs[PR_CCS] = evaluate_flags_writeback(env, flags,
env->pregs[PR_CCS]); env->pregs[PR_CCS]);
} }
void helper_top_evaluate_flags(CPUCRISState *env) void helper_top_evaluate_flags(CPUCRISState *env)
{ {
switch (env->cc_op) switch (env->cc_op) {
{ case CC_OP_MCP:
case CC_OP_MCP: env->pregs[PR_CCS]
env->pregs[PR_CCS] = helper_evaluate_flags_mcp(env, = helper_evaluate_flags_mcp(env, env->pregs[PR_CCS],
env->pregs[PR_CCS], env->cc_src, env->cc_src, env->cc_dest,
env->cc_dest, env->cc_result); env->cc_result);
break; break;
case CC_OP_MULS: case CC_OP_MULS:
env->pregs[PR_CCS] = helper_evaluate_flags_muls(env, env->pregs[PR_CCS]
env->pregs[PR_CCS], env->cc_result, = helper_evaluate_flags_muls(env, env->pregs[PR_CCS],
env->pregs[PR_MOF]); env->cc_result, env->pregs[PR_MOF]);
break; break;
case CC_OP_MULU: case CC_OP_MULU:
env->pregs[PR_CCS] = helper_evaluate_flags_mulu(env, env->pregs[PR_CCS]
env->pregs[PR_CCS], env->cc_result, = helper_evaluate_flags_mulu(env, env->pregs[PR_CCS],
env->pregs[PR_MOF]); env->cc_result, env->pregs[PR_MOF]);
break; break;
case CC_OP_MOVE: case CC_OP_MOVE:
case CC_OP_AND: case CC_OP_AND:
case CC_OP_OR: case CC_OP_OR:
case CC_OP_XOR: case CC_OP_XOR:
case CC_OP_ASR: case CC_OP_ASR:
case CC_OP_LSR: case CC_OP_LSR:
case CC_OP_LSL: case CC_OP_LSL:
switch (env->cc_size) switch (env->cc_size) {
{ case 4:
case 4: env->pregs[PR_CCS] =
env->pregs[PR_CCS] = helper_evaluate_flags_move_4(env,
helper_evaluate_flags_move_4(env, env->pregs[PR_CCS],
env->pregs[PR_CCS], env->cc_result);
env->cc_result); break;
break; case 2:
case 2: env->pregs[PR_CCS] =
env->pregs[PR_CCS] = helper_evaluate_flags_move_2(env,
helper_evaluate_flags_move_2(env, env->pregs[PR_CCS],
env->pregs[PR_CCS], env->cc_result);
env->cc_result); break;
break; default:
default: helper_evaluate_flags(env);
helper_evaluate_flags(env); break;
break; }
} break;
break; case CC_OP_FLAGS:
case CC_OP_FLAGS: /* live. */
/* live. */ break;
break; case CC_OP_SUB:
case CC_OP_SUB: case CC_OP_CMP:
case CC_OP_CMP: if (env->cc_size == 4) {
if (env->cc_size == 4) env->pregs[PR_CCS] =
env->pregs[PR_CCS] = helper_evaluate_flags_sub_4(env,
helper_evaluate_flags_sub_4(env, env->pregs[PR_CCS],
env->pregs[PR_CCS], env->cc_src, env->cc_dest,
env->cc_src, env->cc_dest, env->cc_result);
env->cc_result); } else {
else helper_evaluate_flags(env);
helper_evaluate_flags(env); }
break; break;
default: default:
{ switch (env->cc_size) {
switch (env->cc_size) case 4:
{ env->pregs[PR_CCS] =
case 4: helper_evaluate_flags_alu_4(env,
env->pregs[PR_CCS] = env->pregs[PR_CCS],
helper_evaluate_flags_alu_4(env, env->cc_src, env->cc_dest,
env->pregs[PR_CCS], env->cc_result);
env->cc_src, env->cc_dest, break;
env->cc_result); default:
break; helper_evaluate_flags(env);
default: break;
helper_evaluate_flags(env); }
break; break;
} }
}
break;
}
} }