sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
7240 commits 2 branches 0 tags 204 MiB
Commit graph

196 commits

Author SHA1 Message Date
Gabe Black
2419903dc0 ARM: Make ldrs into the PC and ldm exception return do interworking branches. 2010-06-02 12:58:04 -05:00
Gabe Black
28227440a7 ARM: Align the PC when using it as the base for a load. 2010-06-02 12:58:04 -05:00
Gabe Black
d63f748b53 ARM: Implement ADR as separate from ADD. 2010-06-02 12:58:04 -05:00
Gabe Black
e92dc21fde ARM: Add support for interworking branch ALU instructions. 2010-06-02 12:58:04 -05:00
Gabe Black
11c3361be4 ARM: Fix when the flag bits are updated for thumb. 2010-06-02 12:58:04 -05:00
Gabe Black
05d880f7a1 ARM: Restrict the shift amount from a register to 8 bits. 
The shift amount when taken from a register is supposed to be truncated to an
8 bit value.
 2010-06-02 12:58:04 -05:00
Gabe Black
9ebaf8ecd5 ARM: Define the VFP load/store multiple instructions. 2010-06-02 12:58:04 -05:00
Gabe Black
3f83094af2 ARM: Decode the VFP load/store multiple instructions. 2010-06-02 12:58:04 -05:00
Gabe Black
2f3102f1ef ARM: Add templates for VFP load/store multiple instructions. 2010-06-02 12:58:04 -05:00
Gabe Black
cb631d87c3 ARM: Add floating point load/store microops. 2010-06-02 12:58:04 -05:00
Gabe Black
3a11412c99 ARM: Add an fp version of one of the microop indexed registers. 2010-06-02 12:58:04 -05:00
Gabe Black
a8eb9d521c ARM: Eliminate the unused rhi and rlo operands. 2010-06-02 12:58:03 -05:00
Gabe Black
b02c7f1bcd ARM: Move the macro mem constructor out of the isa desc. 
This code doesn't use the parser at all, and moving it out reduces the
conceptual complexity of that code.
 2010-06-02 12:58:03 -05:00
Gabe Black
7b62e9ad71 ARM: Make macroops panic if executed directly. 
The macroop should never be executed, only it's microops will.
 2010-06-02 12:58:03 -05:00
Ali Saidi
8fadf2691d ARM: GCC < 4.3 has some issues with attribute no return on some functions. Fix so it works for older gccs. 2010-06-02 12:58:03 -05:00
Gabe Black
f18040a205 ARM: Split out the "basic" templates and format. 
--HG--
rename : src/arch/arm/isa/formats/basic.isa => src/arch/arm/isa/templates/basic.isa
 2010-06-02 12:58:03 -05:00
Gabe Black
c175f1b993 ARM: Remove unnecessary cruft from includes.isa. 2010-06-02 12:58:03 -05:00
Gabe Black
e29ec7d2ed ARM: Move the inst2string function out of the isa_desc. 
Delete the now empty formats/util.isa.
 2010-06-02 12:58:03 -05:00
Gabe Black
ae135228fc ARM: Get rid of the unused ArmGenericCodeSubs. 2010-06-02 12:58:03 -05:00
Gabe Black
458bd025d4 ARM: Remove special naming for the new version of multiply. 2010-06-02 12:58:03 -05:00
Gabe Black
2196f75a25 ARM: Hook the new multiply instructions into all the decoders. 2010-06-02 12:58:03 -05:00
Gabe Black
33da368e99 ARM: Implement all integer multiply instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
50229be27f ARM: Add templates for multiply instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
3430b34cff ARM: Add base classes for multiply instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
c7d2f43641 ARM: Decode plain binary immediate thumb data processing instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
dcf218155d ARM: Define a new "movt" data processing instruction. 2010-06-02 12:58:03 -05:00
Gabe Black
b615ed1470 ARM: Hook the new branch instructions into the 32 bit thumb decoder. 2010-06-02 12:58:03 -05:00
Gabe Black
274badd201 ARM: Hook the new branch instructions into the 16 bit thumb decoder. 2010-06-02 12:58:03 -05:00
Gabe Black
b6b2f8891a ARM: Eliminate the old style branch instructions. 2010-06-02 12:58:03 -05:00
Gabe Black
d082705b01 ARM: Hook the new branch instructions into the ARM decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
9869343636 ARM: Implement branch instructions external to the decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
a6c1c8debb ARM: Add new templates for branch instructions. 2010-06-02 12:58:02 -05:00
Gabe Black
769f3406fe ARM: Replace the interworking branch base class with a special operand. 2010-06-02 12:58:02 -05:00
Gabe Black
b6e7029dd5 ARM: Fix PC operand handling. 2010-06-02 12:58:02 -05:00
Gabe Black
7eb3ea2798 ARM: Remove the special naming from the new version of data processing instructions. 2010-06-02 12:58:02 -05:00
Gabe Black
bf903ec9a1 ARM: Get rid of the unused Jump format. 2010-06-02 12:58:02 -05:00
Gabe Black
36ca0658a4 ARM: Get rid of obsoleted predicated inst formats, etc. 2010-06-02 12:58:02 -05:00
Gabe Black
b66e3aec43 ARM: Hook the external data processing instructions into the Thumb decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
8136cb3605 ARM: Hook the new external data processing instructions to the ARM decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
bf45d44cbe ARM: Implement data processing instructions external to the decoder. 2010-06-02 12:58:02 -05:00
Gabe Black
c02f9cdddf ARM: Add new base classes for data processing instructions. 2010-06-02 12:58:02 -05:00
Gabe Black
1e7b317a98 ARM: Hook up 32 bit thumb load/store multiple. 2010-06-02 12:58:02 -05:00
Gabe Black
64d6b6ebfd ARM: Hook up 16 bit thumb load/store multiple. 2010-06-02 12:58:02 -05:00
Gabe Black
51bde086d5 ARM: Reimplement load/store multiple external to the decoder. 
--HG--
rename : src/arch/arm/isa/formats/macromem.isa => src/arch/arm/isa/insts/macromem.isa
rename : src/arch/arm/isa/formats/macromem.isa => src/arch/arm/isa/templates/macromem.isa
 2010-06-02 12:58:02 -05:00
Gabe Black
93a3714816 ARM: Move the templates for predicated instructions into a separate file. 
This allows the templates to all be available at the same time before any of
the formats, etc. This breaks an artificial circular dependence.

--HG--
rename : src/arch/arm/isa/formats/pred.isa => src/arch/arm/isa/templates/pred.isa
 2010-06-02 12:58:01 -05:00
Gabe Black
04300e33d4 ARM: Remove the special naming for the new memory instructions. 
These are the only memory instructions now.
 2010-06-02 12:58:01 -05:00
Gabe Black
deb6e8f805 ARM: Eliminate the old memory formats which are no longer used. 2010-06-02 12:58:01 -05:00
Gabe Black
1905024766 ARM: Eliminate decoding for the very deprecated FPA instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
55465844dc ARM: Make the addressing mode 3 loads/stores use the externally defined instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
36b6ca2ce3 ARM: Pull double memory instructions out of the decoder. 2010-06-02 12:58:01 -05:00
Gabe Black
a86491fbf2 ARM: Decode 16 bit thumb PC relative memory instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
dc8af1b211 ARM: Decode 16 bit thumb immediate addressed memory instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
4bbd73649d ARM: Decode 16 bit thumb register addressed memory instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
462cf6f49b ARM: Make single stores decode to the new external store instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
fde3c8f41d ARM: Make 32 bit thumb use the new, external load instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
3b93015304 ARM: Define the store instructions from outside the decoder. 
--HG--
rename : src/arch/arm/isa/insts/ldr.isa => src/arch/arm/isa/insts/str.isa
 2010-06-02 12:58:01 -05:00
Gabe Black
81fdced83f ARM: Define the load instructions from outside the decoder. 2010-06-02 12:58:01 -05:00
Gabe Black
8933857af7 ARM: Create a "decoder" directory for the files implementing the decoder. 
--HG--
rename : src/arch/arm/isa/armdecode.isa => src/arch/arm/isa/decoder/arm.isa
rename : src/arch/arm/isa/decoder.isa => src/arch/arm/isa/decoder/decoder.isa
rename : src/arch/arm/isa/thumbdecode.isa => src/arch/arm/isa/decoder/thumb.isa
rename : src/arch/arm/isa/vfpdecode.isa => src/arch/arm/isa/decoder/vfp.isa
 2010-06-02 12:58:01 -05:00
Gabe Black
4ebd44dc4f ARM: Flesh out the 32 bit thumb store single instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
386424ccb5 ARM: Implement the 32 bit thumb load word instructions. 2010-06-02 12:58:01 -05:00
Gabe Black
292b8a3c91 ARM: Add an operand for accessing the current PC. 2010-06-02 12:58:00 -05:00
Gabe Black
003346077f ARM: Flesh out 32 bit thumb load word decoding. 2010-06-02 12:58:00 -05:00
Gabe Black
0d4c4cacab ARM: Implement some 32 bit thumb data processing immediate instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
af91d27271 ARM: Add a base class for 32 bit thumb data processing immediate instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
0116655674 ARM: Expand the decoding for 32 bit thumb data processing immediate instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
cef2e8ecee ARM: Stub out the 32 bit Thumb portion of the decoder. 2010-06-02 12:58:00 -05:00
Gabe Black
659f8d021f ARM: Add bitfields for 32 bit thumb. 2010-06-02 12:58:00 -05:00
Gabe Black
bc6ae010c9 ARM: Decode VFP instructions. 2010-06-02 12:58:00 -05:00
Gabe Black
7b8525287d ARM: Stub out the 16 bit thumb decoder. 2010-06-02 12:58:00 -05:00
Gabe Black
aaa619ea23 ARM: Add thumb bitfields to the ExtMachInst and the isa definition. 2010-06-02 12:58:00 -05:00
Gabe Black
a1838f2c79 ARM: Make the decoder handle thumb instructions separately. 
--HG--
rename : src/arch/arm/isa/decoder.isa => src/arch/arm/isa/armdecode.isa
rename : src/arch/arm/isa/decoder.isa => src/arch/arm/isa/thumbdecode.isa
 2010-06-02 12:58:00 -05:00
Gabe Black
0dffd8ce79 ARM: Add a thumb bit bitfield. 2010-06-02 12:58:00 -05:00
Gabe Black
f49cdb4f5d ARM: Make sure ExtMachInst is used consistently instead of regular MachInst. 2010-06-02 12:58:00 -05:00
Gabe Black
9ef82c0bc4 ARM: Track the current ISA mode using the PC. 2010-06-02 12:57:59 -05:00
Gabe Black
4b87bc887a ARM: Remove IsControl from operands that don't imply control transfers. 
Also remove IsInteger from CondCodes.
 2010-06-02 12:57:59 -05:00
Steve Reinhardt
4d77ea7a57 cpu: fix exec tracing memory corruption bug 
Accessing traceData (to call setAddress() and/or setData())
after initiating a timing translation was causing crashes,
since a failed translation could delete the traceData
object before returning.

It turns out that there was never a need to access traceData
after initiating the translation, as the traced data was
always available earlier; this ordering was merely
historical.  Furthermore, traceData->setAddress() and
traceData->setData() were being called both from the CPU
model and the ISA definition, often redundantly.

This patch standardizes all setAddress and setData calls
for memory instructions to be in the CPU models and not
in the ISA definition.  It also moves those calls above
the translation calls to eliminate the crashes.
 2010-03-23 08:50:57 -07:00
Ali Saidi
422f0d9f10 ARM: Begin implementing CP15 2009-11-17 18:02:09 -06:00
Ali Saidi
0916c376a9 ARM: Differentiate between LDM exception return and LDM user regs. 2009-11-17 18:02:08 -06:00
Ali Saidi
171e7f7b24 imported patch isa_fixes2.diff 2009-11-16 11:37:03 -06:00
Gabe Black
9127ee5ac8 ARM: Make the exception return form of ldm restore CPSR. 2009-11-15 00:23:14 -08:00
Gabe Black
903fb8c73d ARM: Create a new type of load uop that restores spsr into cpsr. 2009-11-15 00:15:42 -08:00
Gabe Black
b41725f723 ARM: Check in the actual change from the last commit. 
The last commit was somehow empty. This was what was supposed to go in it.
 2009-11-14 21:03:10 -08:00
Gabe Black
c4042985d7 ARM: Fix up the implmentation of the msr instruction. 2009-11-14 19:22:30 -08:00
Gabe Black
425ebf6bd7 ARM: Add a bitfield to indicate if an immediate should be used. 2009-11-14 19:22:30 -08:00
Gabe Black
812e390693 ARM: Fix up the implmentation of the mrs instruction. 2009-11-14 19:22:29 -08:00
Gabe Black
1df0025e28 ARM: More accurately describe the effects of using the control operands. 2009-11-14 19:22:29 -08:00
Gabe Black
50b9149c75 ARM: Hook up the moded versions of the SPSR. 
These registers can be accessed directly, or through MISCREG_SPSR which will
act as whichever SPSR is appropriate for the current mode.
 2009-11-14 19:22:29 -08:00
Ali Saidi
48bc573f5f ARM: Move around decoder to properly decode CP15 2009-11-14 11:25:00 -06:00
Gabe Black
5524af83ef ARM: Fix some bugs in the ISA desc and fill out some instructions. 2009-11-10 23:44:05 -08:00
Gabe Black
2e28da5583 ARM: Implement fault classes. 
Implement some fault classes using the curriously recurring template pattern,
similar to SPARCs.
 2009-11-10 20:34:38 -08:00
Gabe Black
8a4af3668d ARM: Support forcing load/store multiple to use user registers. 2009-11-08 15:49:03 -08:00
Gabe Black
bb903b6514 ARM: Simplify the load/store multiple generation code. 
Specifically, get rid of the big switch statement so more cases can be
handled. Enumerating all the possible settings doesn't scale well. Also do
some minor style clean up.
 2009-11-08 15:16:59 -08:00
Gabe Black
48525f581c ARM: Split the condition codes out of the CPSR. 
This allows those bits to be renamed while allowing the other fields to
control the behavior of the processor.
 2009-11-08 02:08:40 -08:00
Gabe Black
78bd8fe44f ARM: Add back in spots for Rhi and Rlo, and use a named constant for LR. 2009-11-08 01:59:20 -08:00
Gabe Black
f63c260d89 ARM: Get rid of the Raddr operand. 2009-11-08 01:57:34 -08:00
Gabe Black
4a454c4f47 ARM: Set up an intregs.hh for ARM. 
Add constants for all the modes and registers, maps for aliasing, functions
that use the maps and range check, and use a named constant instead of a magic
number for the microcode register.
 2009-11-08 00:07:35 -08:00
Gabe Black
4971331b4f ARM: Mul and mla ignore the c and v flags, but we were setting them to 1. 2009-07-29 22:24:00 -07:00
Gabe Black
d3f2992e39 ARM: Decode fstmx and fldmx instructions. We can ignore them for now. 2009-07-27 00:54:50 -07:00
Gabe Black
c18d6cb1a7 ARM: Implement a basic version of the fmxr instruction. 2009-07-27 00:53:29 -07:00
Gabe Black
2828fa459d ARM: Implement a basic version of the fmrx instruction. 2009-07-27 00:53:24 -07:00