Gabe Black has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/42341 )
Change subject: arch-x86: Clean up some style issues in regop.isa.
......................................................................
arch-x86: Clean up some style issues in regop.isa.
Change-Id: Ied817adab4e6a3b0ae56e07138b0b2e23dd83892
---
M src/arch/x86/isa/microops/regop.isa
1 file changed, 100 insertions(+), 75 deletions(-)
diff --git a/src/arch/x86/isa/microops/regop.isa
b/src/arch/x86/isa/microops/regop.isa
index 63a1683..871b0c7 100644
--- a/src/arch/x86/isa/microops/regop.isa
+++ b/src/arch/x86/isa/microops/regop.isa
@@ -40,64 +40,58 @@
//////////////////////////////////////////////////////////////////////////
def template MicroRegOpExecute {{
- Fault %(class_name)s::execute(ExecContext *xc,
- Trace::InstRecord *traceData) const
- {
- Fault fault = NoFault;
+ Fault
+ %(class_name)s::execute(ExecContext *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
- DPRINTF(X86, "The data size is %d\n", dataSize);
- %(op_decl)s;
- %(op_rd)s;
+ DPRINTF(X86, "The data size is %d\n", dataSize);
+ %(op_decl)s;
+ %(op_rd)s;
- M5_VAR_USED RegVal result;
+ M5_VAR_USED RegVal result;
- if(%(cond_check)s)
- {
- %(code)s;
- %(flag_code)s;
- }
- else
- {
- %(else_code)s;
- }
-
- //Write the resulting state to the execution context
- if(fault == NoFault)
- {
- %(op_wb)s;
- }
- return fault;
+ if (%(cond_check)s) {
+ %(code)s;
+ %(flag_code)s;
+ } else {
+ %(else_code)s;
}
+
+ //Write the resulting state to the execution context
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+ return fault;
+ }
}};
def template MicroRegOpImmExecute {{
- Fault %(class_name)s::execute(ExecContext *xc,
- Trace::InstRecord *traceData) const
- {
- Fault fault = NoFault;
+ Fault
+ %(class_name)s::execute(ExecContext *xc,
+ Trace::InstRecord *traceData) const
+ {
+ Fault fault = NoFault;
- %(op_decl)s;
- %(op_rd)s;
+ %(op_decl)s;
+ %(op_rd)s;
- M5_VAR_USED RegVal result;
+ M5_VAR_USED RegVal result;
- if(%(cond_check)s)
- {
- %(code)s;
- %(flag_code)s;
- }
- else
- {
- %(else_code)s;
- }
-
- //Write the resulting state to the execution context
- if(fault == NoFault)
- {
- %(op_wb)s;
- }
- return fault;
+ if (%(cond_check)s) {
+ %(code)s;
+ %(flag_code)s;
+ } else {
+ %(else_code)s;
}
+
+ //Write the resulting state to the execution context
+ if (fault == NoFault) {
+ %(op_wb)s;
+ }
+ return fault;
+ }
}};
def template MicroRegOpDeclare {{
@@ -114,8 +108,8 @@
Fault execute(ExecContext *, Trace::InstRecord *) const override;
- X86ISA::PCState branchTarget(const X86ISA::PCState &branchPC) const
- override;
+ X86ISA::PCState branchTarget(
+ const X86ISA::PCState &branchPC) const override;
/// Explicitly import the otherwise hidden branchTarget
using StaticInst::branchTarget;
@@ -137,8 +131,8 @@
Fault execute(ExecContext *, Trace::InstRecord *) const override;
- X86ISA::PCState branchTarget(const X86ISA::PCState &branchPC) const
- override;
+ X86ISA::PCState branchTarget(
+ const X86ISA::PCState &branchPC) const override;
/// Explicitly import the otherwise hidden branchTarget
using StaticInst::branchTarget;
@@ -147,7 +141,7 @@
def template MicroRegOpConstructor {{
%(class_name)s::%(class_name)s(
- ExtMachInst machInst, const char * instMnem, uint64_t setFlags,
+ ExtMachInst machInst, const char *instMnem, uint64_t setFlags,
InstRegIndex _src1, InstRegIndex _src2, InstRegIndex _dest,
uint8_t _dataSize, uint16_t _ext) :
%(base_class)s(machInst, "%(mnemonic)s", instMnem, setFlags,
@@ -164,8 +158,8 @@
{
X86ISA::PCState pcs = branchPC;
DPRINTF(X86, "branchTarget PC info: %s, Immediate: %lx\n",
- pcs, (int64_t) this->machInst.immediate);
- pcs.npc(pcs.npc() + (int64_t) this->machInst.immediate);
+ pcs, (int64_t)this->machInst.immediate);
+ pcs.npc(pcs.npc() + (int64_t)this->machInst.immediate);
pcs.uEnd();
return pcs;
}
@@ -173,12 +167,11 @@
def template MicroRegOpImmConstructor {{
%(class_name)s::%(class_name)s(
- ExtMachInst machInst, const char * instMnem, uint64_t setFlags,
+ ExtMachInst machInst, const char *instMnem, uint64_t setFlags,
InstRegIndex _src1, uint8_t _imm8, InstRegIndex _dest,
uint8_t _dataSize, uint16_t _ext) :
%(base_class)s(machInst, "%(mnemonic)s", instMnem, setFlags,
- _src1, _imm8, _dest, _dataSize, _ext,
- %(op_class)s)
+ _src1, _imm8, _dest, _dataSize, _ext, %(op_class)s)
{
%(set_reg_idx_arr)s;
%(constructor)s;
@@ -198,17 +191,27 @@
}};
output header {{
- void
- divide(uint64_t dividend, uint64_t divisor,
+ void divide(uint64_t dividend, uint64_t divisor,
uint64_t "ient, uint64_t &remainder);
- enum SegmentSelectorCheck {
- SegNoCheck, SegCSCheck, SegCallGateCheck, SegIntGateCheck,
- SegSoftIntGateCheck, SegSSCheck, SegIretCheck, SegIntCSCheck,
- SegTRCheck, SegTSSCheck, SegInGDTCheck, SegLDTCheck
+ enum SegmentSelectorCheck
+ {
+ SegNoCheck,
+ SegCSCheck,
+ SegCallGateCheck,
+ SegIntGateCheck,
+ SegSoftIntGateCheck,
+ SegSSCheck,
+ SegIretCheck,
+ SegIntCSCheck,
+ SegTRCheck,
+ SegTSSCheck,
+ SegInGDTCheck,
+ SegLDTCheck
};
- enum LongModeDescriptorType {
+ enum LongModeDescriptorType
+ {
LDT64 = 2,
AvailableTSS64 = 9,
BusyTSS64 = 0xb,
@@ -285,7 +288,8 @@
# If op2 is used anywhere, make register and immediate versions
# of this code.
- matcher =
re.compile(r"(?<!\w)(?P<prefix>s?)op2(?P<typeQual>_[^\W_]+)?")
+ matcher = \
+
re.compile(r"(?<!\w)(?P<prefix>s?)op2(?P<typeQual>_[^\W_]+)?")
match = matcher.search(allCode + allBigCode)
if match:
typeQual = ""
@@ -428,7 +432,8 @@
cond_control_flag_init = ""
op_class = "IntAluOp"
- def __init__(self, dest, src1, op2, flags = None, dataSize
= "env.dataSize"):
+ def __init__(self, dest, src1, op2, flags=None,
+ dataSize="env.dataSize"):
self.dest = dest
self.src1 = src1
self.op2 = op2
@@ -544,17 +549,24 @@
src1, src2, flags, dataSize)
class Add(FlagRegOp):
- code = 'DestReg = merge(DestReg, result = (psrc1 + op2),
dataSize);'
+ code = '''
+ result = psrc1 + op2;
+ DestReg = merge(DestReg, result, dataSize);
+ '''
big_code = 'DestReg = result = (psrc1 + op2) & mask(dataSize * 8);'
class Or(LogicRegOp):
- code = 'DestReg = merge(DestReg, result = (psrc1 | op2),
dataSize);'
+ code = '''
+ result = psrc1 | op2;
+ DestReg = merge(DestReg, result, dataSize);
+ '''
big_code = 'DestReg = result = (psrc1 | op2) & mask(dataSize * 8);'
class Adc(FlagRegOp):
code = '''
CCFlagBits flags = cfofBits;
- DestReg = merge(DestReg, result = (psrc1 + op2 + flags.cf),
dataSize);
+ result = psrc1 + op2 + flags.cf;
+ DestReg = merge(DestReg, result, dataSize);
'''
big_code = '''
CCFlagBits flags = cfofBits;
@@ -564,7 +576,8 @@
class Sbb(SubRegOp):
code = '''
CCFlagBits flags = cfofBits;
- DestReg = merge(DestReg, result = (psrc1 - op2 - flags.cf),
dataSize);
+ result = psrc1 - op2 - flags.cf;
+ DestReg = merge(DestReg, result, dataSize);
'''
big_code = '''
CCFlagBits flags = cfofBits;
@@ -572,15 +585,24 @@
'''
class And(LogicRegOp):
- code = 'DestReg = merge(DestReg, result = (psrc1 & op2), dataSize)'
+ code = '''
+ result = psrc1 & op2;
+ DestReg = merge(DestReg, result, dataSize)
+ '''
big_code = 'DestReg = result = (psrc1 & op2) & mask(dataSize * 8)'
class Sub(SubRegOp):
- code = 'DestReg = merge(DestReg, result = (psrc1 - op2), dataSize)'
+ code = '''
+ result = psrc1 - op2;
+ DestReg = merge(DestReg, result, dataSize)
+ '''
big_code = 'DestReg = result = (psrc1 - op2) & mask(dataSize * 8)'
class Xor(LogicRegOp):
- code = 'DestReg = merge(DestReg, result = (psrc1 ^ op2), dataSize)'
+ code = '''
+ result = psrc1 ^ op2;
+ DestReg = merge(DestReg, result, dataSize)
+ '''
big_code = 'DestReg = result = (psrc1 ^ op2) & mask(dataSize * 8)'
class Mul1s(WrRegOp):
@@ -825,8 +847,10 @@
}
//Figure out what the OF bit should be.
- if ((ext & OFBit) && (CFBits ^ bits(DestReg, dataSize * 8
- 1)))
+ if ((ext & OFBit) &&
+ (CFBits ^ bits(DestReg, dataSize * 8 - 1))) {
PredcfofBits = PredcfofBits | OFBit;
+ }
//Use the regular mechanisms to calculate the other flags.
uint64_t newFlags = genFlags(PredccFlagBits | PreddfBit |
@@ -846,7 +870,8 @@
code = '''
uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) :
mask(5)));
uint64_t logicalMask = mask(dataSize * 8 - shiftAmt);
- DestReg = merge(DestReg, (psrc1 >> shiftAmt) & logicalMask,
dataSize);
+ DestReg = merge(DestReg, (psrc1 >> shiftAmt) & logicalMask,
+ dataSize);
'''
big_code = '''
uint8_t shiftAmt = (op2 & ((dataSize == 8) ? mask(6) :
mask(5)));
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ied817adab4e6a3b0ae56e07138b0b2e23dd83892
Gerrit-Change-Number: 42341
Gerrit-PatchSet: 1
Gerrit-Owner: Gabe Black <[email protected]>
Gerrit-MessageType: newchange
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